Project name：Yacht model

Material: ABS engineering plastics

Process: CNC machining

Post treatment: Painting, plating

Qty: 1 set

Advantages: high precision, fast speed and high processing efficiency

Production cycle: 15 days

Project requirements:

1. Precise proportion: The yacht model is made in 1:40 scale

2, perfect assembly, fine surface treatment, smooth lines of finished products and even colors

Project Background

The birth of a yacht begins with a drawing. After a rigorous review, the model of the yacht is produced. This is the conceptual model of the yacht. The customer can easily make the appearance review by making the yacht model.

Project pre-stage analysis:

After receiving the design drawings sent by the customer, the production department holds a preliminary analysis meeting, and through the cooperation of various departments, detailed analysis of each problem that the product needs to pay attention to.

Process and material selection:

The hull and superstructure are mostly made of ABS engineering plastics as raw materials, and some small parts are made of metal stainless steel. Most of the manufacturing processes are done by ABS CNC machining. After processing, the model needs to be post-treated by grinding, painting, electroplating, etc. to enhance the appearance of the model.

Production process:

1. Disassemble and check the overall matching degree of the components: Combine with the CNC machining process, split the model to ensure that the components of each level can be processed; with the help of the software, the pre-analyst optimizes the assembly of the drawings and verifies the feasibility of the drawings. .

Disassemble and check the overall matching degree of the components

2. Programming on the machine: After preliminary analysis, programmed on the machine. In order to ensure that all parts can be finely processed, we carry out precision abs plastic machiningthrough the industry-leading CNC processing equipment to ensure the high precision of the product.

Programming on the machine

3. After the machining is completed, the rough assembly is carried out: After the cnc model makingis completed, the parts are rough-assembled and necessaryly polished to ensure that the products are assembled correctly before painting.

rough assembly

4. Fine post-processing: according to the customer's specified requirements, the finished parts are polished, painted, electroplated and other post-treatment processes.

Finely polished by hand

Finely polished by hand

paint

Paint

Fine post-processing

5. Strict quality inspection: Each component is inspected by the project manager and transferred to the quality inspection department who checks again to ensure that the product has no any quality problems.

Strict quality inspection

Strict quality inspection

Strict quality inspection

6. Beautiful finished products

Beautiful finished products

Duch Group can provide customers with CNC processing, 3D printing, product appearance processing (grinding, polishing, vacuun casting, spraying, silk screen, pad printing, electroplating, laser engraving, wire drawing, etc.) small batch personalized product customization, mass production and other services, which can help customers quickly verify the appearance of the product, help customers achieve high-quality sample manufacturing and rapid manufacturing. If you have the above needs, please contact us!

HASCO is a leading European manufacturing company for moulding services and moulds, and is considered to be the standard maker for European moulds. The company recently developed a Quick-Change Mold System. This enables injection moulding manufacturers to quickly and effectively replace their moulds to reduce the time and cost of resetting their machines. Mould printed by Stratasys 3D Printer makes the whole process cheaper. It can make cnc prototyping china samples faster and cheaper, or make small batch production with reasonable cost.

Duch Group provide customers with competitive solutions such as rapid prototype, mass production, small batch production, 3D printing, mold making, and injection molding. With more than 20 years of extensive production experience in the rapid prototyping china industry, it is the world's largest rapid prototyping service company.

Small batch production is the center and future of production. Industrial planning always plays an important role in the whole situation. Small batch manufacturing is the epitome of modern manufacturing technology. Small batch manufacturing not only plays a very important role in product planning decomposition, but also is a powerful tool for product information security and market promotion.

With the increasingly fierce competition in the social market and the expansion of industrial planning, all industries attach importance to industrial planning and the production of manual models. The development quality and practical role of products need to be verified by companies. Small batch hand model industry has gradually separated from the process of industrial planning, and become a relatively independent industry. With the vigorous development, many professional small batch production companies have emerged. Large planning companies and industrial planning companies have established their own small batch processing offices.

Small batch production of hand panels solves the problem of multiple exhibitions

The products produced need a small batch trial production, so that more products can participate in the exhibition. Sometimes, there will be many places in the world, each place needs a set of hand board model, so small batch rapid production can solve these problems.

There are many ways to process the hand-board model, usually according to the customer's 3D drawings. Computer Gong carving is the most commonly used processing method, followed by SLA laser rapid prototyping, which requires small batch processing to produce more products to participate in the exhibition. In some cases, there will be many exhibitions around the world, such as Shanghai, Hong Kong and Shenzhen. These are just exhibitions in China. If there are other places in the world, such as American International Exhibition, European Exposition. All of these require a set of hand-drawn samples, so small batch production can solve these problems.

In order to improve the competitive advantage of product development as we all know. But in many cases, we need to save time,which means saving the product development cycle, and strive for listing as soon as possible. Saving time is saving cost. When we make ABS hand boards, the average time is 3 to 5 days.

How to use the best method to produce high quality hand-plate model and save time and cost is an important sign to test the scale of hand-held factory. We need to find a factory that can deliver the hand-board in time and make it completely according to the design requirements. Such a handboard factory can be based on the market and it will have its own survival rules.

HASCO is a leading European manufacturing company for moulding services and moulds, and is considered to be the standard maker for European moulds. The company recently developed a Quick-Change Mold System. This enables injection moulding manufacturers to quickly and effectively replace their moulds to reduce the time and cost of resetting their machines. Mould printed by Stratasys 3D Printer makes the whole process cheaper. It can make cnc prototyping china samples faster and cheaper, or make small batch production with reasonable cost.

Duch Group provide customers with competitive solutions such as rapid prototype, mass production, small batch production, 3D printing, mold making, and injection molding. With more than 20 years of extensive production experience in the rapid prototyping manufacturers china, it is the world's largest rapid prototyping service company.

Project Name：Fitness Equipment

Material：ABS

Technology：CNC Machine

Qty：one set

Customer：Australian design company

Advantage：High precision, fast speed and high processing efficiency

Manufacturing Time: 4-5 days

Project Requirements：

Bright color fitness equipment - with different weights

External surface-spray rubber soft touch paint increasing friction

Pre-project analysis：

After receiving the design drawings from customer, the production department held a preliminary analysis meeting. Including the pre-analyst, the managers of post-processing department, the spray department and the silk screen department. During this meeting, the various issues that the products need to pay attention to are analyzed in detail. After analysis, it was found that the product was the appearance model, the adhesion of the final product’s rubber paint should be considered.

Process and material selection:

This product's raw material is ABS, and we choose the CNC technology to finish this part.  After CNC processing, the model will be polished and painted, and finally a transparent rubber paint is sprayed on the surface.

Production process:

After the analysis and program process, the parts will be arranged CNC machined. In order to ensure all part’s high precision, we prefer the abs precision machining  through the industry-leading CNC equipment.

2. Professional post-treatment, the post-treatment of the product focuses on the adhesion of the final product rubber paint. After CNC machining, and polished by our professional post-processing department, the part will be handed over to the spray dept. for painting process. The rubber paint is sprayed on the surface of the product in a matte or semi-matte state. It has a special soft touch and elasticity, friction resistance, impact resistance chemical resistance, good adhesion and durability. After spraying the rubber paint, the adhesion is good, the friction on the surface of the product is increased, and the part's appearance is more beautiful.

HASCO is a leading European manufacturing company for moulding services and moulds, and is considered to be the standard maker for European moulds. The company recently developed a Quick-Change Mold System. This enables injection moulding manufacturers to quickly and effectively replace their moulds to reduce the time and cost of resetting their machines. Mould printed by Stratasys 3D Printer makes the whole process cheaper. It can make cnc prototype china samples faster and cheaper, or make small batch production with reasonable cost.

Duch Group provide customers with competitive solutions such as rapid prototype, mass production, small batch production, 3D printing, mold making, and injection molding. With more than 20 years of extensive production experience in the rapid prototyping manufacturers china, it is the world's largest rapid prototyping service company.

With the development of science and technology, people's requirement for parts processing quality is becoming higher and higher. At the same time, product modification is frequent. In general mechanical processing, single and small batch products account for an increasing proportion. In order to ensure product quality, improve productivity and reduce costs, machine tools are required not only to have good versatility and flexibility, but also to have a high degree of automation in the process of processing. cnc machining technology is a kind of high-efficiency and flexible automatic processing technology developed under this environment, which is controlled by digital information of NC machine tools. It is suitable for high-precision, complex parts and small and medium-sized batch production.

CNC machine tool is an efficient and flexible mechanical-electrical integration equipment which integrates computer technology, modern control technology, sensor detection technology, information processing technology, network communication technology, hydraulic pneumatic technology, optical and mechanical technology, and it is the basis of modern manufacturing technology.

1. Composition of NC Machine Tool and NC Machining Process

CNC machine tools refer to the machine tools that use digital information recorded in the media to control the machine tools through the CNC device, so that it can automatically implement the specified processing process.

1) Composition of CNC Machine Tools

NC machine tools automatically process workpieces according to pre-programmed processing procedures. CNC machine tools are usually composed of machine body, servo system, CNC device and control medium, as shown in Figure 2-61.

Figure 2-61 Composition of CNC Machine Tool

Control medium. Control medium, also known as information carrier, is an intermediate medium which conveys the operation intention of human to CNC machine tools. It contains all the information necessary to process a part. Commonly used control media are perforated tape, magnetic tape, disk and other carriers that can store instruction information. For the short NC processing program, the NC device can be input directly through the keyboard on the NC operation panel.

NC device. CNC device is the center of CNC machine tool. It receives the information from control medium, and converts it into pulse signal to control machine tool action.

Servo system. Servo system is a device which connects the moving parts of machine tool with CNC system, including servo drive mechanism and movable parts of machine tool. It is the executive part of CNC system of machine tool. It transforms the impulse signal from CNC device into the movement of machine tool parts, so that the worktable or tool holder can be positioned accurately or moved strictly according to the expected trajectory, and the parts meeting the requirements of the drawings can be machined.

Machine tool.  Machine tool is the mechanical part of NC machine tool. Besides the general parts such as main drive device, feed drive device, bed, worktable and auxiliary part, there are also special parts, such as tool storehouse, automatic tool changer and rotary worktable.

NC Machine Parts Processing Process

The NC machine tool parts processing process is that the operator first changes it into the content of manufacturing process according to the processing pattern. On the basis of familiarity with the processing technology, the processing program is compiled, and the human will is transformed into the acceptable information of CNC machine tools with the prescribed code and program format. Record information on control media (such as punched tape, tape or disk) to make it an instruction for controlling machine tools. After the input information is processed by the NC device, the command pulse is sent to the servo system of the coordinate axes of the machine tool to drive the corresponding moving parts of the machine tool, and other actions such as speed change, tool change and machine shutdown are controlled to automatically process the workpiece that meets the requirements of the drawings.

Classification of 2 NC Machine Tools

CNC machine tools can be classified according to process use, locus of motion, control mode and so on. This paper only introduces the classification according to process use. CNC machine tools are classified according to their processing characteristics or main processing procedures. They are mainly CNC lathes (including turning centers), CNC milling machines (including milling centers), CNC boring machines, CNC machining centers, CNC grinding machines (including grinding centers), CNC drilling machines (including drilling centers), CNC broaching machines, CNC planer, CNC cutting machine, CNC gear processing machine and CNC EDM machine (including EDM center, etc.). Figure 2-62 shows the appearance of CK50 NC lathe. Its processing range is the same as that of ordinary lathe. It mainly processes rotational parts such as shafts and discs. Figure 2-63 shows the appearance of XJK125 NC milling machine. It is especially suitable for the processing of complex parts. It can complete milling, drilling and boring.

Figure 2-62   CK50 CNC lathe appearance chart

Figure 2-63   XJK125 CNC Milling Machine Appearance Diagram

Machining center (MC) is a kind of NC machine tool for multi-process machining of workpiece. It has a tool library and an automatic tool changer (ATC). After the workpiece is clamped once, under the control of the NC system, the machining center can automatically select and change the cutting tools according to different processes; automatically change the spindle speed, feed rate and the movement track of the tool relative to the workpiece and other auxiliary functions; sequentially complete the multi-process processing on several surfaces of the workpiece. Therefore, it reduces the time of workpiece clamping, measuring and machine adjustment, shortens the time of workpiece storage and handling, improves productivity and machine tool utilization, and it is an important development direction of CNC machine tools. Figure 2-64 shows the layout of JCS-018 machining center. Its shape is similar to that of vertical milling machine. There is a sliding seat 2 on the bed 1, and it moves horizontally (y axis direction). Workbench 3 moves longitudinally on the slide seat (x-axis direction). There are frame pillars 5 at the back of the machine tool. The spindle box 9 makes vertical lifting motion (z axis direction) on the column guide rail. The left and right parts of the column are the NC device 6, the left front part is equipped with the tool storehouse 7 and the automatic tool changing manipulator 8, and the left lower part is equipped with the lubrication device 4. There are 16 cutters in the tool library, which can complete all kinds of hole processing and milling. There are 16 cutters in the tool library, which can complete all kinds of hole processing and milling. The NC operation panel 10 is suspended in front of the operator's right for easy operation. The working state of the machine tool is displayed on the panel. Machining centers are usually divided into horizontal, vertical and universal machining centers according to the spatial position of the spindle during processing.

Figure 2-64   JCS-018 Machining Center Layout

machine tool body; 2-slide seat; 3-worktable; 4-lubrication device; 5-pillar; 6-NC device; 7-tool library; 8-tool changing manipulator; 9-spindle box; 10-operation panel

3 Programming

The so-called programming means that the process, process parameters, tool movement and direction and other auxiliary actions (tool changing, cooling, clamping, etc.) of parts are compiled into tables according to the sequence of movement and the instruction code and program format given by the NC machine tools used. This form is called "parts processing program sheet", or simply "procedure sheet". Then, all the contents of the program sheet are recorded on the control medium (such as perforated tape, tape, etc.), and then transmitted to the NC device to direct the NC machine tool processing. The whole process from the analysis of part drawings to the production of control media for NC machine tools is called programming.

Generally speaking, the steps of NC programming are: process design→numerical calculation→preparation of parts processing program sheet→preparation of control medium or program input→program verification and trial cutting.

1) Process design

On the basis of comprehensive analysis of part drawings, the clamping and positioning method, processing route (such as tool setting point, tool changing point, feed route), tool and cutting parameters (such as feed speed, spindle speed, cutting width and cutting depth) are determined.

2) numerical calculation

According to the part drawing and the determined processing route, the tool trajectory is calculated.

The general NC device has the functions of linear interpolation and circular interpolation. For processing simple parts consisting of arcs and straight lines, only the coordinate values of the intersection or tangent points (base points) of adjacent geometric elements on the contour of the part are calculated, and the starting and ending points of the straight line, the starting and ending points of the arc and the coordinate values of the center of the circle can be obtained. When the shape of parts is complex and the interpolation function of NC devices is inconsistent, more complex calculations are needed.

3) Writing Procedure Sheet for Parts Processing

According to the calculated coordinates of tool path, the determined cutting parameters and auxiliary actions, and the instruction codes and program formats prescribed by the NC system, a part processing program sheet is compiled.

4) Preparing control medium or program input

After the program sheet has been written, the operator or programmer must input the processing information into the NC device. According to the different input and output devices of the NC system, the program can be moved to some control medium first. Commonly used control media are U disk, disk, tape and so on.

Program Checking and Trial Cutting

The program must be checked and tested before it can be used formally. The method of checking is to input the contents of the control medium directly into the NC device to check whether the tool's trajectory is correct or not. On the CNC machine tool with CRT graphics display screen, the program checking and trial cutting can be carried out by simulating the cutting process of the workpiece; otherwise, the pen can replace the knife and coordinate paper can replace the workpiece, so that the machine tool can run and draw the processing trajectory.

These methods can only check whether the tool's motion path is correct or not, and can not check the machining accuracy. Therefore, the trial cutting of parts should also be carried out. If it is found that the accuracy of the parts can not meet the requirements through trial cutting, the program sheet and the control medium should be modified, and the error compensation method should be adopted until the qualified parts are processed.

4. Characteristics and Application of CNC Machine Tools

1) Characteristics of CNC Machine Tools

(1) High processing accuracy and stable processing quality. Because of the high manufacturing accuracy of CNC machine tool and the automatic processing according to the scheduled program, the artificial operation error is avoided, the consistency of the same batch of parts is good, and the product quality is stable.

High productivity. Because many parts can be processed in one clamping process, many intermediate processes (such as marking) are omitted. Generally, only the first piece inspection is needed, which greatly shortens the production preparation time, so the productivity is high.

(3) The high degree of automation reduces the intensity of labor and improves the working conditions. Except for the manual clamping of the blank, the whole processing process is automatically completed by the machine tool, which reduces the labor intensity of the operator and improves the working conditions.

(4)It has strong adaptability and good economic benefit. When the processing object is changed, the NC program can be redesigned without redesigning tools, fixtures and moulds. This greatly shortens the product development cycle and provides a shortcut for the development of new products. At the same time, the processing accuracy is high, the quality is stable, the waste rate is reduced, the production cost is reduced, and the productivity is high, so good economic benefits can be obtained.

(5) It is conducive to the modernization of production management. By using NC machine tools, the processing time of parts can be accurately calculated, and the management of inspection, fixture and semi-finished products can be effectively simplified, which is conducive to the modernization of production management. Because of the use of digital information, it is easy to form an integrated computer aided design and manufacturing system.

However, the cost of CNC machine tools is high, the technology is complex and the maintenance is difficult, which requires higher quality of management and operators.

Application of NC Machine Tool

CNC machine tools are widely used, especially suitable for processing parts with the following characteristics: multi-variety, small batch production parts; parts with complex structure and high precision requirements; parts with frequent modifications. CNC machine tools can save a lot of tooling costs, reduce the overall cost. It is expensive, and it does not allow scrap of key parts; urgent parts with the shortest production cycle are needed.

HASCO is a leading European manufacturing company for moulding services and moulds, and is considered to be the standard maker for European moulds. The company recently developed a Quick-Change Mold System. This enables injection moulding manufacturers to quickly and effectively replace their moulds to reduce the time and cost of resetting their machines. Mould printed by Stratasys 3D Printer makes the whole process cheaper. It can make cnc prototype china samples faster and cheaper, or make small batch production with reasonable cost.

Duch Group provide customers with competitive solutions such as rapid prototype, mass production, small batch production, 3D printing, mold making, and injection molding. With more than 20 years of extensive production experience in the rapid prototype service china, it is the world's largest rapid prototyping service company.

Talk about Application of Rapid Prototyping Technology in Jewelry Design Briefly

With the development of science and technology, the application of computer technology has been widely used in our life, and the field of jewelry design is no exception. Laser welding, laser marking, numerical control processing, rapid prototyping and other technologies have made tremendous changes in jewelry design and processing. Among them, Rapid Prototyping Manufacturing (RPM), a high-tech manufacturing technology considered as a major achievement in the manufacturing field in the past two decades, has a particularly rapid development momentum. It not only improves the efficiency of jewelry design and processing, but also has a profound impact on jewelry design.

Rapid prototyping technology was born in the late 1980s. It is a part prototype manufacturing technology which integrates the latest achievements of mechanical engineering, CAD/CAM technology, reverse engineering technology, layered manufacturing technology, laser technology, numerical control technology and new materials. Generally speaking, jewelry rapid prototyping technology uses three-dimensional CAD data to stack layers of materials into solid prototypes through rapid prototyping machines. It is different from the traditional "removal" processing method. It uses a new "growth" processing method. Its basic principle is to decompose the complex three-dimensional processing into the superposition of simple two-dimensional processing, so it is also called "laminated manufacturing". It can automatically, directly, quickly and accurately transform design ideas into prototypes with certain functions or directly produce parts, thus providing an efficient and low-cost means for prototyping and verification of new design ideas. There are more than ten kinds of rapid prototyping methods, including SLA, SLS, LCM and FDM.

At present, fused deposition moulding (FDM) and light curing (SLA) are widely used in the field of jewelry. Fused Deposition Molding (FDM) is a method that melts low melting point and low material, sprays out through the nozzle, controls the nozzle to move on the two-dimensional guideway by computer. The nozzle moves along the layered contour and solidifies the material to obtain a thin layer. Through the accumulation of different section contour layers, a three-dimensional solid model is finally formed. SLA uses liquid photosensitive resin as raw material. Under the control of computer, the ultraviolet laser scans the liquid resin point by point according to the contour track of the layered section of jewelry, which causes the resin thin layer in the scanned area to produce photopolymerization (curing) reaction, thus forming a thin section of jewelry. After the liquid photosensitive resin curing layer in a scanned area is completed, the worktable drops one layer. The cured resin surface is scanned and cured repeatedly after being coated with a new layer of liquid resin, so that each layer is adhered to each other repeatedly until the whole part is cured. Compared with traditional jewelry production methods, these technologies not only improve the efficiency of jewelry production, reduce the intensity of labor, but also further improve the accuracy of model plate producing. These advantages undoubtedly makes jewelry production better. Similarly, as an excellent jewelry work, from conception design to production completion, design is a particularly critical step. Today, rapid prototyping technology is popular, and it also affects the development of jewelry design in all aspects.

Give Jewelry Design More Material Selection Possibility

In the past, people used to think of gold, silver, gemstone and other materials in jewelry. With the development of technology, taking 3D printing in rapid prototyping technology as an example, the materials used include polymer materials, metal materials, ceramic materials and composite materials. Because of the relatively fine effect and low cost of 3D printing technology, and the unique texture and plasticity of the material presented by this technology, many jewelry artists and designers now choose to use polymers commonly used in 3D printers as design materials. For example, Svenja John, a pioneer artist in the use of digital technology, has studied computer control technology since 1963. In 1994, Svenja John began to cut polycarbonate into parts by using CAD technology. It is processed and colored to form geometric jewelry with other parts. Later, she used rapid prototyping technology and combined her design with printers that can print different materials and colors at the same time. Color polycarbonate is reorganized by order but accidental. Her works always radiate an incredible vitality, because she skillfully combines artistry and technology, giving new materials unique artistic language. Svenja John said: "I don't want to use synthetic materials as simple decorative or cheap alternatives, but to explore and use the advantages and uniqueness of synthetic materials. Synthetic materials can be colorful, brilliant transparent texture, or elegant semi-transparent sandy texture, which is a medium to give people a real feeling and transmit real touch.

Enrich the formal expression of jewelry design

Whether in the process of jewelry design or the presentation of design results, rapid prototyping technology has become one of the most effective assistants. Compared with the traditional way of drawing design drawings or making samples according to sketches, rapid prototyping technology can construct models and proofing accurately in a shorter time. In the form of design results, rapid prototyping technology gives jewelry design unlimited possibilities. Standard symmetrical jewelry is the best rapid prototyping technology, and stereo, multi-layer, hollow and other complex modeling, it is absolutely difficult to invert rapid prototyping technology. Moreover, according to the characteristics of computer software required by rapid prototyping technology, many elements with digital traces have been brought into jewelry design. Through the design of 3D printing technology, the texture of digital traces on the surface can also be said to be decoration, and it is also an important element of the overall modeling. This is reflected in many designs after the maturity of computer technology.

It can be said that if rapid prototyping technology does not appear, it is estimated that designer Maria Eife will not be a hit. Maria Eife is a veteran player of rapid prototyping technology, and she has been fascinated by the innovation and reconstruction of existing jewelry forms. Her design often has traces of traditional jewelry, but the design is exaggerated and modern. According to her experience, it's very difficult to make her jewelry in other ways. Maria Eife said: "The shapes I create are often impossible or difficult to create in other ways. Some of my designs tend to be too heavy or expensive if they are made in other ways. "It is undeniable that rapid prototyping technology gives designers more freedom of creation and formal expression.

Provide new creative ideas for jewelry design

Design concept is the soul of jewelry works. Excellent jewelry works can not leave input and excavation of design ideas and connotations of Designers. Rapid prototyping technology not only provides efficient and convenient production, but also brings new creative ideas for jewelry design. For example, the work of Professor Wang Xiaoxin, of Academy of Fine Arts, Tsinghua University uses rapid prototyping technology. In the shape of metal form, the neat arrangement of human body group images, with the combination of jade articles and people, reflects the cultural connotation of "harmony of heaven and man". Its deep deconstruction and reconstruction of "harmony" culture is shown in the carrier of jade ritual ware. The design concept of this work originates from tradition, but the method of expression is modern. This design idea of combining traditional concept with modern language has also been developed and realized with the maturity of rapid prototyping technology.

Rapid prototyping technology not only attracts jewelry designers, but also inspires the visual artist Beate Eismann who is interested in jewelry design. She has produced a series of jewelry works by using rapid prototyping technology such as 3D printing and computer control technology. Beate Eismann has devoted herself to digital design and production for many years. There is a recurring theme in her research over the years: the printing technology of the past and the present. It can be said to be a new way of thinking in her creation. Therefore, she combines the printing plate of jewelry with modern technology and puts forward the concept of the relationship between the original and the copy. This concept combined with 3D printing made her feel like drawing in a space. In this process, she discovered the interaction between handcrafting and computer control, an experimental space for the combination of traditional materials and new materials. The research of rapid prototyping technology makes her creation success. Her works give people a surreal feeling, like "hybrid" living works. Inspired by a project in 2016 and combined with 3D printing, Beate Eisman began exploring and experimenting with intelligent materials. This spring-like creative thinking is developed from the deep study of rapid prototyping technology and the requirement of self-creation and perfection.

HASCO is a leading European manufacturing company for moulding services and moulds, and is considered to be the standard maker for European moulds. The company recently developed a Quick-Change Mold System. This enables injection moulding manufacturers to quickly and effectively replace their moulds to reduce the time and cost of resetting their machines. Mould printed by Stratasys 3D Printer makes the whole process cheaper. It can make cnc prototyping china samples faster and cheaper, or make small batch production with reasonable cost.

Duch Group provide customers with competitive solutions such as rapid prototype, mass production, small batch production, 3D printing, mold making, and injection molding. With more than 20 years of extensive production experience in the china rapid prototype suppliers, it is the world's largest rapid prototyping service company.

Production Management of Small Batch and Variety

The production mode of small batch and multi-variety is to adapt to the changing market, according to market demand, order, quality, quantity and punctual production. In the market economy, consumers tend to diversify their hobbies and pursue high-level, unique and popular commodities different from others. New products emerge in an endless stream. In order to expand market share, enterprises must adapt to this change in the market. The diversification of enterprise products has become an inevitable trend. Of course, we should see that the diversification of products and the emergence of new products will also lead to the elimination of some products before they are out of date and still have usable value. It is a great waste of social resources, and this phenomenon should arouse people's attention. Its goal is to shorten the delivery time and reduce the inventory of the production system.

1.Improve adaptability to changing demand

Small batch, single piece transmission

Multi-skilled employees

Internal Quality Assurance System of Processes

Universalization of Equipment and Fixtures

2.To expose manufacturing problems and their weaknesses

Quality failure

Equipment failure

Workload imbalance

Transfer time

3.Eliminate waste caused by improper production management and reduce production management costs

Material waiting due to improper production management

Unnecessary type change due to improper production management

Increase in indirect operations due to improper production management

4. Improve the adaptability of manufacturing to short delivery time

Eliminating Stagnation ( Information of it)

Reduce the number of intermediate products in process

Synchronization

Characteristics of small batch and multi-variety

1. Multivariate Parallel

Because the products of many enterprises are aimed at customer configuration, different products have different needs, and the resources of enterprises are in many varieties.

2. Resource Sharing

Every task in the production process needs resources, but the resources available in the actual process are very limited. For example, equipment conflicts are often encountered in the production process, which is caused by project resource sharing. Therefore, limited resources must be appropriately allocated to meet project needs.

3. Uncertainty of Order Result and Production Cycle

Because the demand of customers is unstable, and the planned nodes are inconsistent with the complete cycle of human, machine, material, method, loop, etc., the production cycle is often uncertain. The project with insufficient cycle needs more resources, which increases the difficulty of production control.

4. Variable material requirements lead to serious procurement delays

Due to the insertion or change of the order, it is difficult for external processing and procurement to reflect the order delivery time. Because of small batches and single source of goods, the supply risk is very high.

Difficulties in small batches and multi-varieties

1. Dynamic process path planning and virtual unit line deployment: emergency plug-in, equipment failure, and bottleneck drift.

2. Bottleneck identification and drift: before and during production

3. Multi-level bottleneck: assembly line bottleneck, parts virtual line bottleneck, how to coordinate coupling.

4. Buffer size: either backlog or poor anti-jamming. Production batch, and transfer batch, etc.

5. Production scheduling: We should not only consider bottlenecks, but also the impact of non-bottleneck resources.

There are also many problems in the practice of multi-variety and small-batch production mode in enterprises, such as:

It is very difficult to arrange mixed production for multi-variety and small-batch production.

If delivery is not on schedule, there are too many "fire fighting" overtime.

Orders require too much follow-up

Frequent changes in production priorities prevented the original plan from being executed

Inventories are increasing, but critical materials are often lacking

The production cycle is too long and it expands indefinitely in advance.

Multi-variety and Small-quantity Production

1.Necessity of Import

Purple: to shorten the manufacturing cycle, reduce inventory and adapt to load changes.

Conditions: shortening the preparation time, multi-frequency handling, process internal quality control, rely on improving manufacturing technology to shorten manufacturing cycle, standard operation, parts synchronous supplying mechanism (parts matching, Kanban management), flexible equipment, production plan to be divided into small batches to organize production.

The ultimate goal: balanced production: daily multi-model production + single-piece transmission production with different models mixed

2.Are all types of machines suitable for small quantity batch production?

This is not the case. Manufacturing should match the sales speed, so the market demand for large-scale or medium-batch production of models.

ABC analysis method is derived from the PQ analysis method which can distinguish the boundary.

Mode of production:

1. For mass production

1. For Medium-batch production

1. For small batch production

Because the market is changing in many directions, mass production is the reason for the increase of inventory. We should try our best to avoid this mode of production, so that we can reduce the inventory by daily production (small batch production).

Balanced production

3.Promotion of Manufacturing Engineering

(1)Establishing flexible production system

Multi-variety and small-batch production is the mechanism of efficient manufacturing

• Short operation preparation time can achieve rapid transfer of production

• Quality in-process control

• Balanced production, standard operation

• Multi-skilled employees

• Universalization of Equipment and Fixture

(2) Shortening Manufacturing Cycle

• A system of prompt delivery after receipt of orders

• Eliminate stagnation (material, information)

• Improve the Synchronized Purchasing Rate of Departments

• Reduction of intermediate manufactured goods

• Improve layout (shorten work station)

4. Specific measures in process

(1) Automatic plug-in process

(a) Reduction of work-in-process products

(b)Shortening the transfer time of self-plugging machine

(c) Improving the shutdown of machinery and equipment

(d)Overall and thorough maintenance of machinery and equipment

(e) Establish standard quantity of work-in-process products

(2) SKD process

(a) Shorten the preparation time for the transfer

(b) Rapid preparation of debugging rack

(c) Completely reduce the number of products in the process to zero

(3)CTV assembly

(a) Shorten the preparation time for the transfer

(b)Completely realize the process balance of wire body

(c)Repair the machine on the day it breaks down (don't leave it till tomorrow)

(4) Injection Molding Plant

(a) Shorten the operational preparation time for conversion

(b)Logistics discussion

(c) Maintain adequate inventory

(d) Overall and thorough maintenance of machinery and equipment

5.The Role of Indirect Sector

Design Department

(1)Promoting standardized design

(2)Shortening the design cycle.... Design Specification determines high efficiency and short period design of process

(3) Improve the design completeness

Procurement Department

(1) Strengthen cooperation among departments

(2) Shorten procurement cycle

(3) Rethink the Unilateral Form

(4) Separation of order and delivery instructions

(5) Delivery date management and supplier guidance

(6) Establishment of material management and parts delivery system at manufacturing site

Production and Technology Departments (Including Related Departments)

(1) Development of basic technology (including equipment and instruments)

(2) Introduce production design method

(3) Shorten the time of transfer

(4) Shorten manufacturing cycle

(5) Train generalists

Production switching of multi-varieties and small batch orders

The switching action on the production site can be divided into the following types:

Type 1: Mould, Tool, Fixture and Mould Switching

This type of switching can be seen more in mechanical processing plants and plastic injection plants, and it is also the most common example of switching action.

For example, the die of punch, injection moulding machine, lathe, drill tool replacement, etc. Therefore, it is sometimes collectively referred to as "die changing operation" or "die changing". However, this usage is easy to mislead people who are not sure about it, or beginners. They think that the switching action is limited to the switching of moulds and so on. Therefore, I think that it is more appropriate to use "switching" as a general term.

Type 2: Switching of Standard Change

For example, when computers and numerical controllers are used in precision cutting or chemical devices, once the product is changed, the setting conditions must be changed. In fact, in the whole process of "switching", adjustment is the most time-consuming and difficult part to overcome.

Type 3: Switching of parts and materials in assembly line

In the assembly line, when the product changes, the parts or materials used must follow the change. This kind of action is generally called "line-changing operation". In traditional Line-Changing operations, it's common to wait until the last product is finished before the whole production line stops to change.

As an assembly line with many assemblies, this method will cause a long time of shutdown and a great loss. In fact, if we can change the line in sequence, no matter how many stations there are on the assembly line, the loss of the change time is only cycle time of one station.

Type 4: General preparation before manufacture

It refers to the preparatory work that must be done before the start of manufacturing, such as drawing review before mechanical processing, job assignment and cleaning up after work.

Four kinds of switching actions, though different in content, result in production standstill is the same. However, most people only focus on the improvement of switching action in the first mode changing operation, while ignoring the improvement of the other three modes. In fact, the improvement of the latter three types is easy to achieve. It also saves considerable switching time

HASCO is a leading European manufacturing company for moulding services and moulds, and is considered to be the standard maker for European moulds. The company recently developed a Quick-Change Mold System. This enables injection moulding manufacturers to quickly and effectively replace their moulds to reduce the time and cost of resetting their machines. Mould printed by Stratasys 3D Printer makes the whole process cheaper. It can make cnc prototype china samples faster and cheaper, or make small batch production with reasonable cost.

Duch Group provide customers with competitive solutions such as rapid prototype, mass production, small batch production, 3D printing, mold making, and injection molding. With more than 20 years of extensive production experience in the china rapid prototype suppliers, it is the world's largest rapid prototyping service company.

Introduction

Rapid prototyping is an advanced manufacturing technology developed rapidly in recent years. This technology can quickly produce solid parts or models with arbitrary complex shapes from CAD data without any dies, cutters and tools, thus realizing the "die-less manufacturing" of new product development. It greatly shortens the development cycle, reduces costs and improves quality. It can automatically and quickly materialize the idea of ignorance into prototype or directly manufacture parts with certain structure and function, so as to evaluate and modify the product design quickly in response to market demand and improve the competitiveness of enterprises.

Principle of Define Rapid Prototyping Technology

Rapid prototyping is a digital prototyping technology based on discrete stacking forming. It uses discrete/stacking principle (such as solidification, bonding, welding, sintering, polymerization or other chemical reactions) to produce parts. Its working process is to obtain the path, restriction and mode of accumulation by discretization, and to "superimpose" materials to form three-dimensional entities by accumulation. First, in the CAD software system, the chieftain obtains the three-dimensional model plough or the surface data of the part entity through the measuring instrument, and then transforms the model into three-dimensional model. Secondly, the model is processed by data processing, and the CAD model is discretized along a certain direction (usually Z direction), and the plane slice is stratified.

Then the discrete layered information is combined with the information of forming process parameters and converted into the NC code to control the work of the forming machine. A three-dimensional solid part can be obtained by regularly and accurately stacking the materials controlled by a special CAM system.

Typical Rapid Prototyping Process

At present, there are more than ten methods of rapid prototyping technology, such as light curing, laminated manufacturing, laser sintering, fused deposition, mask curing, three-dimensional printing, spraying and so on. Mainstream forming methods are the first four.

Stereo lithography apparatus

Stereo lithography apparatus(SLA) is also known as stereolithography. SLA process is based on the principle of photopolymerization of liquid photosensitive resins. Under the specific wavelength and intensity of ultraviolet light irradiation, the liquid materials rapidly undergo photopolymerization, and the materials change from liquid to solid. The schematic diagram of SLA forming process is shown in Fig. 1 (a). The liquid tank is filled with liquid photosensitive resin. Under the deflection mirror, the laser beam can scan on the liquid surface. Where the light spot is scanned, the liquid solidifies. At the beginning of forming, the depth under the liquid level of the working platform is determined , and the liquid level is always out of the laser focusing plane. After focusing, the spot is scanned point by point on the liquid surface according to the instructions of the computer. It is point by point solidification. When a layer of scanning is completed, the untreated area is still liquid resin. Then the elevator drives the platform down one layer of height, and the formed layer is covered with a layer of resin. The scraper scrapes the liquid surface of the resin with high viscosity, and then scans the next layer. The newly solidified layer is firmly adhered to the former layer. This is repeated until the whole part is manufactured and a three-dimensional solid model is obtained.

Fig. 1 (a) 3.1Stereo lithography apparatus

SLA method is the most widely studied method in the field of RP technology, and it is also the most mature method in technology.

Generally, the thickness of the layer is (0.1-0.15) mm, and the precision of the formed parts is high. Years of research have improved the cross-section scanning mode and resin formability, so that the processing accuracy of the process can reach 0.1 mm, and now the highest accuracy has reached 0.05 mm. However, this method also has its own limitations, such as the need for support, resin shrinkage leading to a decline in accuracy, and photosensitive resin has a certain degree of toxicity, and so on.

HASCO is a leading European manufacturing company for moulding services and moulds, and is considered to be the standard maker for European moulds. The company recently developed a Quick-Change Mold System. This enables injection moulding manufacturers to quickly and effectively replace their moulds to reduce the time and cost of resetting their machines. Mould printed by Stratasys 3D Printer makes the whole process cheaper. It can make cnc prototyping china samples faster and cheaper, or make small batch production with reasonable cost.

Duch Group provide customers with competitive solutions such as rapid prototype, mass production, small batch production, 3D printing, mold making, and injection molding. With more than 20 years of extensive production experience in the china rapid prototype suppliers, it is the world's largest fast prototyping service company.

Small batch production products  is a unit of customized production and small batch production. There are many kinds of products produced in small batches, and the output of each variety is small. It needs to organize production according to the needs of users. It has the advantages of flexibility and good adaptability to the external market.

Brief overview

Owing to the wide range of batch production, it is usually divided into "mass production", "medium-batch production" and "small-batch production".

Small batch production refers to the production of special products which are basically required in small batches.

Single-piece small-batch production is a typical make-to-order (MTO), which has similar characteristics with single-piece production and is customarily called "single-piece small-batch production". Therefore, in a sense, "single piece small batch production" is more in line with the actual situation of enterprises.

It is composed of customized products (such as batch production clothing and turbines for hydroelectric power generation, etc.) and small batch production units.

Basic characteristics of mass production

Small batch production has the following characteristics:

1. Long manufacturing cycle and long ordering period.

2.Universal equipment, a large number of employees, low production efficiency and low labor productivity.

3.High cost.

4. Product quality can not be guaranteed.

HASCO is a leading European manufacturing company for moulding services and moulds, and is considered to be the standard maker for European moulds. The company recently developed a Quick-Change Mold System. This enables injection moulding manufacturers to quickly and effectively replace their moulds to reduce the time and cost of resetting their machines. Mould printed by Stratasys 3D Printer makes the whole process cheaper. It can make cnc prototype china samples faster and cheaper, or make small batch production with reasonable cost.

Duch Group provide customers with competitive solutions such as rapid prototype, mass production, small batch production, 3D printing, mold making, and injection molding. With more than 20 years of extensive production experience in the china rapid prototype suppliers, it is the world's largest fast prototyping service company.

The vacuum casting china technology which uses prototype  (SLA laser rapid prototyping piece, CNC products) to make silicone mold under vacuum, and is poured under vacuum conditions, such as PU, ABS, etc. Vacuum casting is also used to clone the prototype or copy the piece. It has different types including vacuum mould casting, vacuum pressure casting, vacuum sand casting and so on. This method is especially suitable for small batch production. It is a low-cost solution to solve experimental production and small batch production in a short time, and can also meet the functional test proofing of some structurally complicated engineering samples.

Vacuum Casting Process

1. Make a silicone mold by using the master made by CNC machining and 3D printed.
2. Put the silicone mold into the vacuum molding machine.
3. Inject liquid epoxy resin and heat to cure.
4. After the curing is completed, take out the same part as the Master from the silicone mold, and one silicone mold can be used for 20 times.

China Vacuum Casting is suitable for small batch production, which can greatly reduce production costs, increase production efficiency and shorten the construction period.

Applications for Vacuum Casting

It is mainly used for product copying and mold making in various industries.

Vacuum Casting Materials

We offer a wide range of material options: ABS, PP, PC, PMMA, POM, high temperature resistant materials, soft rubber, silicone rubber, etc. Varieties of materials are available to make silicone molds comparable to injection molded parts. The following pictures are rubber, PC-like material, ABS-like material, POM-like material and transparent material.

Advantages of Vacuum Casting

The cost is low and the production cycle of the product is relatively short. Less waste and processing costs are much lower than CNC machining and 3D printing.

It is suitable for the processing and production of small batch products. After making an original version, it can be copied according to the original version, and the production efficiency is high.

Good mold operation. The soft molds after curing are all transparent or translucent, have good tensile strength, and are easy to cut and shape.

The probability of processing failure is small. As long as there is no problem with the original, the copy will naturally not go wrong.

Good repeatability. The silicone for molding has good fluidity before curing, and the fine structure and decoration of the model can be accurately maintained with vacuum defoaming.

We have the world's most advanced vacuum casting equipment, and provide post-processing lines such as polishing, painting and assembly. We can provide small batch production of small and medium-sized parts quikly. If you are looking for reliable vacuum casting service, please contact our professional team at info@duchgroup.com or contact us by visiting our website, we will provide quotes and suggestions free of charge.   

Duch Group Provides customers with competitive solutions such as china prototyping, mass production, small batch production, 3D printing, mold making, and injection molding. With more than 20 years of extensive production experience in the rapid prototyping industry, it is the world's largest rapid prototyping service company.

Sheet metal processing or sheet metal fabrication includes: folding, shearing, punching, welding, riveting, splicing and other processes. In general, the process of forming a sheet by hand or mechanical is called sheet metal processing. Sheet metal processing is to cut and bend metal materials into various shapes and their thicknesses can vary significantly. According to the materials, sheet metal fabrication can be divided into several types, including aluminum sheet metal fabrication, stainless steel fabrication and brass fabrication.

Sheet metal process:

Sheet metal processing drawing design -> Laser processing or (CNC stamping) -> Bending -> Welding Molding -> Electrostatic powder spraying or (liquid paint) -> Packaging and shipping.

1. Drawing design:

In general, the customer provide drawings or samples, then our engineers perform the measurement, design, and development, and form the machining decomposition map and assembly drawing to the production department for processing.

2. Laser processing:

It has a large laser cutting machine, it can be cut by laser cutting  such as carbon steel, stainless steel, etc material. After the workpiece is processed, the section is neat, smooth and beautiful, and the size is accurate. It has advantages for the workpiece with arc. CNC stamping can not replace the processing method.

3. CNC stamping:

With imported turret CNC punching machine, CNC punching is mainly for the thickness of product processing materials, generally suitable for materials below 2.5mm. Sheet metal processing workpieces have more holes or need to open special molds to process the workpiece. CNC punching has a certain cost advantage.

4. Bend:

After the workpiece is cut, if most of them need to be bent and formed, the CNC bending machine not only has a fast speed, but also the workpiece is processed more accurately.

5. Welding molding:

The workpiece needs to be assembled and formed after cutting the material, and the assembly method is various. Some are directly formed by non-welding processes such as screws and riveting. Generally, the mechanical casing is made of welding, and the company adopts argon arc welding, bump welding, carbon dioxide welding, etc., we will polished them after welding, so that the workpiece is relatively firm and beautiful.

6. Electrostatic powder spray:

Electrostatic powder spraying is mainly for carbon steel workpieces. In the process, oil removal and derusting, surface cleaning, phosphating, electrostatic powder spraying and high temperature baking are generally carried out. After processing, the surface of the workpiece is beautiful, it will not rust within a few years, and the cost is low.

Liquid paint: This process differs from electrostatic powder spray. It is mainly used for large workpieces. It is convenient and low-cost to use liquid paint when it cannot be handled. The liquid paint is divided into two steps, and the primer is applied to the paint after the workpiece is processed.

7. Packaging and shipping:

100% inspection before packaging and inspection data.

Advantages of Sheet Metal

Sheet metal has the characteristics of light weight, high strength, electrical conductivity (can be used for electromagnetic shielding), low cost, large-scale mass production performance, etc. It has been widely used in the fields of electronics, telecommunications, automotive industry, medical equipment and so on. For example, in computer cases, mobile phones, and MP3s, sheet metal is an essential part.

Why Choose Us for Sheet Metal Fabrication?

We have a complete set of advanced CNC sheet metal fabrication equipment, including 5 imported, high-efficiency and precision CNC punching machines, 3 CNC shearing machines, 3 CNC bending machines, 30 sets of common punching machines, welding robots, etc. We have sheet metal manufacturing line, technicians with rich experience in sheet metal processing, complete production equipment, and rich production experience and strict quality management system, providing a strong technical guarantee for fast, accurate and high quality order fulfillment. With advanced equipment and experienced operators, we also provide custom metal fabrication.

If you are looking for reliable and professional sheet metal fabrication companies  that can provide you with high quality china sheet metal fabrication services , please contact our professional team at info@duchgroup.com or contact us using the inquiry form on this website, we will provide quotes and suggestions free of charge.

Duch Group Provides customers with competitive solutions such as china rapid prototyping, mass production, small batch production, 3D printing, mold making, and injection molding. With more than 20 years of extensive production experience in the rapid prototyping industry, it is the world's largest rapid prototyping service company.

China reverse engineering is to obtain the point cloud data of the physical model by using the three-dimensional digital scanning of the existing physical model in the case that the design drawings are incomplete or even without the design drawings or CAD models, and the point cloud data is calculated and used. Processing is done to form a digital model for product redesign and CNC machining. A reverse engineering process includes two steps: the first step is to scan the physical model and the second step is to creat a three-dimensional model.

Reverse Engineering Process

1. To obtain 3D date by 3D scanning for objects.
2. By generating point clouds, extracting features, and using reverse engineering software to have date processing for the point clouds.
3. Reverse modeling.
4. Compare evaluation: To inspect the geometric error and make necessary modifications by using a variety of 3D engineering software.

Advantages of Reverse Engineering

To shorten the product design and development cycle, speed up the replacement speed of the products

To reduce the cost and risk of developing new products;

To speed up the geometric and Serialization Design for the products;

It is suitable for both single piece and small batch production, especially benefit for making molds.

Reverse Engineering Applicaitons

automotive manufacturing

aerospace

electronics

medical field

cultural relics

sculpture

construction

scientific research

Why Choose Us for Reverse Engineering Service?

We have professional reverse engineers and advanced 3D laser scanners, which can quickly and easily obtain 3D data of scanned objects. Through professional 3D post software, we can accurately obtain various structures from curved threads to ribs and cavities. You can also convert 3D drawings into traditional and commonly used 2D engineering drawings through the corresponding software according to your own needs. You only need to provide us with a physical model, we can also come to the on-site service, let you experience professional services.

With more than 20 years of 3d scanning reverse engineering service and 3D copying experience, we have successfully provided professional reverse engineering services for customers in reverse engineering projects of automotive manufacturing, aerospace, mold manufacturing, electronics, consumer, medical, cultural relics, sculpture, construction, scientific research and other industries. The solution helps industry customers shorten the development cycle, increase production efficiency and improve product quality.

If you are looking for a professional and reliable service provider for 3d reverse engineering, please contact our professional team at info@duchgroup.com or contact us using the inquiry form on this website, we will provide quotes and suggestions free of charge.

Duch Group Provides customers with competitive solutions such as china rapid prototypes, mass production, small batch production, 3D printing, mold making, and injection molding. With more than 20 years of extensive production experience in the rapid prototyping industry, it is the world's largest rapid prototyping service company.

Rapid prototyping is a kind of professional manufacturing technology that is used to produce high-quality entity models of three-dimensional designs. Prototypes are useful for design improvements and can be used as stepping stones for comprehensive production or engineering testing. With the plastic rapid prototyping , you can manufacture parts or the products to test for the component fit and function. According to the analysis results, you can make further adjustments (about the design, shape, materials, etc.) before the products finally enter the market. It can help you effectively save time and costs. A lot of our customers need to manufacture a entity component quickly to verify the feasibility of a design or a part. Nowadays, various kinds of rapid prototyping processes are available. You can choose the process which best suits your needs. With only thirty years around of development, rapid prototyping technology, as its name implies, has already been widely used in many areas. Meanwhile, the silicone rapid prototyping services are still growing at a fast speed.

Different Rapid Prototyping Processes

Prototypes can be made through different rapid prototyping processes. With thirty years around of development, a variety of prototype manufacturing processes are available. In addition, they are continuing to evolve. Since companies or customers have different requirements and demands, different types of rapid prototyping processes will be chosen. So how does rapid prototyping work? Reading the following contents and you will know which rapid prototyping service suits you best.

SLA （StereoLithography）

Description: SLA is a photo-curing molding technology, which refers to the method of forming three-dimensional solid layer by layer through the polymerization reaction of liquid photosensitive resin by ultraviolet irradiation. The work piece prepared by SLA has high dimensional accuracy and is the earliest commercial 3D printing technology.

Printing Material: Photosensitive Resin

Strength: photosensitive resin is insufficient in toughness and strength and is easily broken. At the same time, under high temperature conditions, the printed parts are easy to bend and deform, and the bearing capacity is insufficient.

Features of finished product: SLA printed workpieces have good details and smooth surface, which can be colored by spray painting and other processes.

Selective Laser Sintering (SLS)

Description:SLS is a selective laser sintering technology, similar to SLM technology. The difference is the laser power. It is a rapid prototyping method that uses infrared laser as a heat source to sinter powder materials and form three-dimensional parts layer-by-layer.

Printing Material:Nylon powder, PS powder, PP powder, metal powder, ceramic powder, resin sand and coated sand (common printing materials: nylon powder, nylon plus glass fiber)

Strength:material performance is better than ABS products, and the strength and toughness are excellent.

Features of finished product:the finished product has superior mechanical properties and is suitable for direct production of measurement models, functional models and small batch of plastic parts. The disadvantage is that the precision is not high, the surface of the prototype is relatively rough, and it is generally required to be polished by hand, sprayed with glass beads, ash, oil and other post-processing.

Fused Deposition Modeling (FDM)

Description: FDM is a melt lamination technology, that uses high temperature to melt materials, extrudes them into filaments through the print head, and builds up on component platform. FDM is the simplest and most common 3D printing technology, which is commonly used in desktop 3D printing devices.

Printing Material：usually ABS or PLA wire

Strength: PLA is brittle,its surface hardness is higher, and it is easier to break when bending. ABS parts are more resilient than PLA parts, and are easy to bend rather than break under pressure. Moreover, ABS has higher strength, better plasticity, and easier post-processing.

Features of finished product: the printing layer is thick, the precision is poor, and the stratification of the surface is very obvious. Under high temperature conditions, the printed parts are easy to bend and deform, and the bearing capacity is insufficient.

CNC

Description: CNC machining is a subtractive manufacturing process in which the software control system issues instructions to make the tool perform various required movements. In this process, various precision tools are used to remove the raw materials and make parts or products.

Materials: CNC processing materials are quite extensive, including plastics and metals. Plastic hand model materials are: ABS, acrylic, PP, PC, POM, nylon, bakelite, etc.; Metal hand model materials are: aluminum, aluminum Magnesium alloy, aluminum zinc alloy, copper, steel, iron, etc.

Strength: different materials have different strengths and are difficult to list

Features of finished product: CNC machined parts have a smooth surface, high dimensional accuracy, and the best compactness, and there are a variety of post-processing options.

Vacuum Casting

Description: vacuum casting technology is to use the prototype (rapid prototyping parts, CNC hand parts) to make a silicone mold under vacuum condition. It also uses PU, ABS and other materials to pour, so as to clone the same copy with the product prototype.

Material: ABS, PU, PVC, silicone, transparent ABS

Strength: the strength and hardness are lower than the CNC hand parts. Common PU material is relatively brittle, toughness and high temperature resistance are poor. ABS has higher strength, better plasticity, and easier post-processing.

Features of finished product: easy to shrink and deform; the accuracy is generally only 0.2mm. In addition, the vacuum casting hand parts can only resist high temperature of about 60 degrees, and is lower than CNC hand parts in strength and hardness.

Advantages of Rapid Prototyping

High degree of automation in forming process

Precise entity replication

High dimensional accuracy. Dimensional accuracy can be up to±0.1mm

Excellent surface quality

Unlimited design space

No assembly required

Fast forming speed and shorter delivery time

Saving raw materials

Improving product design

Duch Group Provides:

Complete process equipment: we are the only independent manufacturer with large scale in China and can provide both small batch and large batch production services for subtractive manufacturing and additive manufacturing. We have self-developed high-speed intelligent 3D printing equipment, large CNC machining center, vacuum casting machine, low-pressure perfusion and other advanced equipment as well as post-processing production lines such as polishing, painting and so on.

Leading technology: with the latest technology in the world, four world-first 3D printing technology can be diversified, rapid, low-cost, accelerate the research and development speed of enterprise products, and achieve world-class production capacity.

One-stop 3d printing service: 3D printing integrated solution provider, with product development and service output capabilities from equipment, software, materials to cloud printing, can provide global users one-stop service from product design and development to final mass production.

Application of Rapid Prototyping

Shoemaking

3D printing is advancing the revolution of shoemaking industry with the aim of reducing costs, reducing outsourcing, greatly increasing flexibility and preparing for the era of personalized customization and tailoring. Whether through our on-demand production services or our advanced 3D printers, Vistar is happy to participate in this new industrial revolution with our customers.

Medical

It has a high requirement on accuracy and reliability related to the R&D and production of the medical industry. Vistar 3D printing has earned the support and trust from many hospitals and other medical clients through the advantages of on-demand manufacturing service.

Fashion and Cultural Creative

The additive manufacturing provides an entirely new medium for artists that can almost realize any idea. For the fashion designer, Vistar’ production solutions creat an exciting new age which has enabled designers to gain significant on product launches and personalization.

Automobile

The developed at top speed and innovation of the automotive industry is highly compatible with Vistar's manufacturing innovation. 3D printing and related technologies can significantly reduce time to market, as well as make the personalized customization possible.

Dentistry

3D printing technology is becoming more and more mature and popular in the dental market. The total value of dental components manufactured by 3D printing solution exceeded 4 billion US dollars in 2016. The era of digital dentistry is just beginning and Vistar can help you transition easily.

Electronic Product

Diversified electronic industry technology update with a high speed, but Vistar has always been able to adapt to this rhythm and provide customers with required services. Whether it's making new models quickly or making advanced stereo curable 3D printers, you'll be able to make your bold and subtle design more powerful.

Future of Rapid Prototyping

The development of equipment to large-scale

Diversification of Materials development

From the ground to space

Deep space exploration

Benefit thousands of households

Duch Group Provides customers with competitive solutions such as china 3d prototyping , mass production, small batch production, 3D printing, mold making, and injection molding. With more than 20 years of extensive production experience in the rapid prototyping industry, it is the world's largest rapid prototyping service company.

Mass production refers to the continuous repetition of the manufacture of the same products in a longer period of production. Here are some characteristics of mass production: less product varieties, large product output, relatively stable production, long-term fixed to complete the same product of one or two processes in one workshop, a higher degree of specialization. Mass production manufacturing generally can has pipeline, automatic line and other advanced forms of production organization, and operating workers usually engage in regular occupation, which is conducive to improving the operational proficiency of workers and labor productivity. Mass production process can be a kind of simple production, or it can be a kind of complex production. In the enterprise and workshop of mass production, it is appropriate to take the form of object specialization to divide the production units, and layout of required various production equipment according to the process flow.

Advantages of Mass Production

With more than 500 high-speed, high-precision CNC machining equipment and world-class injection molding equipment, 20+ years of mold manufacturing experience, we can provide you with all-round services such as rapid mold manufacturing and injection molding mass production to achieve optimal production efficiency and effectively reduce production costs, providing a full range of rapid mass production solutions.

Mass Production Process

Mask: making mold, injection molding mass production

After solving the difficulties in making molds, we started to make molds. The mold core material is made of S136+ heat treatment, the hardness can reach 48-52 degrees,  we use 50C for the mold base, through milling machine/deep hole drilling, CNC roughing, Heat treatment, grinding machine, CNC light knife, wire cutting, electric spark, polishing, fitter mold assembly process to make the mold efficiently, finally do the injection.

We offer professional batch and mass production.  We can also provide a variety of post-treatment methods, such as painting, screen printing, water transfer printing, polishing, sandblasting, electroplating, vacuum plating and so on. If you are looking for reliable mass production companies, please contact our professional team at info@duchgroup.com or contact us by visiting our website, we will provide quotes and suggestions free of charge.

Duch Group Provides customers with competitive solutions such as rapid prototyping in china, mass production, small batch production, 3D printing, mold making, and injection molding. With more than 20 years of extensive production experience in the rapid prototyping industry, it is the world's largest rapid prototyping service company.

Small batch trial production is a transitional link from small trials to pilot tests to industrial production. Prior to mass production, all formal production tooling, processes, equipment, environments, facilities, and cycles are scheduled to produce appropriate small batch quantities to verify product design plausibility and manufacture ability.

We are professional China printer plastic shell mold manufacturing factory and we have the world's leading SLA 3D printing, CNC machining, vacuum molding, batch production technology student, low pressure infusion and other technologies. We also provide one-stop low volume manufacturing service from product design to prototype verification, rapid mold manufacturing to small batch production.

Advantages of Low-Volume Manufacturing

Flexible

Saving cost

Short production period

Efficient and fast

Quality assurance

Meeting the requirements of personalized customization

Applications of Low Volume Manufacturing service

1. SLA 3D printing

3D printing has a unique advantage in product concept design, prototyping, product review, and functional verification. We could manufacture prototype from CAD digital model directly by SLA, with fast processing speed, short production cycle, no need for cutting equipment and molds. Besides, we it could machine prototypes and molds with the complex structural shapes or being difficult to form by the traditional methods, and the finished prototypes and molds have high precision. 3D printing is applied in the various field, and it could be customized for small batch production.

2. RIM:Reaction Injection Moulding

RIM technology produce parts by the simple molds, such as aluminum molds, resin molds, and ABS molds. Resin molds are used more commonly, because resin molds are lower cost and the resin molds are manufactured faster compared with the aluminum. RIM technology is suitable for the small batch trial production pf the product development process, which is used in the automotive industry, medical products and instrumental housings, car bumper, car hood, etc. All in all, RIM technology could manufacture small batch production parts with the large and simple structure, and the plastic parts with the uneven thickness.

3. Vacuum Casting

The vacuum casting technology uses the prototype of the product to make silicone molds under vacuum status, and adopts materials such as PU, ABS etc. to manufacture parts under vacuum status which is the same as with the prototype of the product. This method is suitable for small batch production especially . It is a low-cost solution to solve experimental production and small batch production during the short time, and it also could meet the functional test of some engineering samples with complicated structure . All in all, the vacuum casting technology is suitable for the simple test and the needs of the conceptual design.

Duch Group Provides customers with competitive solutions such as rapid prototype service china, mass production, small batch production, 3D printing, mold making, and injection molding. With more than 20 years of extensive production experience in the rapid prototyping industry, it is the world's largest rapid prototyping service company.

What is a Mold?

In industrial production, various types of presses and special tools mounted on the press are used to produce metal or non-metal materials into parts or articles of the desired shape by pressure. This special tool is collectively referred to as a mold, and the material of the mold is generally divided into Plastic injection moulding service also has the formation of sheet metal steel molds.

We have the world's leading 3D printing, CNC machining, vacuum complex molding, low pressure infusion, injection molding and other equipment, rich production experience can provide you from product design to prototype verification, rapid mold manufacturing to small batch trial production, mass production Dragon service. With more than 20 years of experience in mold manufacturing, the industry covers electronics, automotive, electrical machinery, instruments, electrical appliances, home appliances, communications and other fields. The mold design is accurate, the product is corrosion-resistant, has good strength and long service life, and can provide you with professional injection molding. Rapid mold manufacturing services such as mould design services, blow molds, extrusion molds, silicone molds, and die-casting molds help your products increase production efficiency, save development costs, and speed time-to-market for new products. You only need to provide us with the design drawings, and our professional image analysts will carry out processing feasibility analysis and design optimization for your drawings.

If you are looking for a professional and reliable service provider that can provide you with rapid mold manufacturing?Please contact our professional team at info@duchgroup.com or contact us using the inquiry form on this website, we will provide quotes and suggestions free of charge.

Duch Group Provides customers with competitive solutions such as rapid prototype service china, mass production, small batch production, 3D printing, mold making, and injection molding. With more than 20 years of extensive production experience in the rapid prototyping industry, it is the world's largest rapid prototyping service company.

What is CNC Machining service china?

CNC machine is commonly used in manufacturing and industrial production. But exactly what is CNC machining?

CNC (Computer Numerical Control) machining is a kind of subtractive manufacturing process. In CNC manufacturing, the software control system issues commands to make the tool meet the required movements. In this process,various precision tools are used to remove layers of raw materials and make parts or products. Therefore, it can also be called cnc precision machining.

Types of CNC Machining

Three-axis CNC machining

The 3-axis machining is performed by straight lines to the axes X, Y, and Z.

Machining features: the cutting tool orientation remains constant during movement along the entire cutting path.

The 3-axis machining center has the advantages of high precision and high efficiency. It is commonly used to machine general parts, but it is more troublesome when machining complex workpieces, which may cause the workpiece to fail. Therefore, multi-axis simultaneous machining is the first choice when machining more complex workpieces.

Five-axis CNC machining

Five-axis machining is the use of CNC to move parts or cutting tools on five different axes simultaneously, which can process very complex parts.

The remarkable feature of the five-axis linkage CNC machine tool is that it can complete the surface machining, and no special fixture is needed during machining, which greatly reduces the number of clamping and improves the machining accuracy, quality and efficiency. The five-axis machining center has unparalleled advantages in the processing of complex workpieces.

CNC milling

CNC milling machine processing is based on the technical requirements of the shape, accuracy, size and surface roughness of the workpiece to determine the processing technology and processing parameters. Program the machining program into the controller and send the command to the servo. CNC milling machines can process parts with particularly complex contours or difficult to control dimensions, such as mold parts and housing parts. It has the advantages of strong adaptability, high processing precision, stable processing quality and high efficiency.

CNC turning

CNC turning is one of the most used machining methods in CNC machining. During CNC turning, the workpiece makes a rotary motion, and the tool moves in a straight line or a curve. While the tool tip moves relative to the workpiece, a certain workpiece material is removed to form a corresponding workpiece surface.

Applications of CNC Machining

Electronic Products

The full metal casing of 3C products is basically processed by CNC machine tools CNC. CNC has become a must-have for 3C enclosure manufacturers due to its high efficiency, high precision and stable processing quality.

Automobile

CNC machining plays an important role in the automotive industry. It can be said that most automotive parts are processed by CNC machining.

The advantages of CNC machining in automobile manufacturing include multi-axis linkage to obtain the tortuous machining of prototype machining services; high precision and good product consistency; high degree of automation, resulting in low labor intensity; CNC also ensures simplicity and high efficiency.

Case: CNC machining car hood model

Material: ABS

Accuracy: 0.01mm

Advantages: high precision, good surface quality, low cost and short time.

Hardware parts processing

Case: CNC machining hardware accessories

Material: hardware parts made of aluminum, copper, stainless steel, etc.

Accuracy: 0.01mm

Advantages: high precision, good surface quality, low cost and short time

Applications: Metal casings, hardware, metal panels, environmental protection equipment parts, non-standard micro-miniature components, copper/aluminum alloy spare parts, medical equipment parts, instrumentation parts, precision machinery parts, communication and communication parts, electronic products High standards and high quality products in the industry of spare parts and auto parts.

Medical Instruments

Case: Aluminum alloy medical robot model production

Size: 30mm*1m

Accuracy: 0.01mm

Advantages: durability and precision

Mold Processing

With the rising labor costs, the preparation of mold templates in the past has been gradually replaced by CNC. Compared with the previous manual preparation, its advantages are: CNC machining holes and hole position relative position accuracy is higher, and work efficiency is extremely Great improvement. In addition, CNC machining processes are required for the machining of curved surfaces, profiled parts, and plastic mold forming cavities in metal molds.

Smart Home

Case: Smart Service Robot

Production materials : ABS, acrylic, sheet metal, PMMA, 45 steel, magnet, aluminum alloy

Size: 1.6m

Accuracy: 0.01mm

Advantages: high precision, fast speed and high processing efficiency

Advantages of CNC Machining

As one of the most professional cnc machining companies in china, we have advantages as below.

High degree of automation and high production efficiency. Except for the manual clamping of the blank, all other processing can be done automatically by the CNC machine.

High production efficiency. CNC machine tools can shorten production preparation time and increase the ratio of machining time. Increase productivity by reducing machining time with optimum cutting parameters and optimal path.

It has strong adaptability to the processing object. When changing the machining object, Except to changing the tool and solving the blank clamping method, it only needs to be reprogrammed, and no complicated adjustment is required, which shortens the production preparation cycle.

High processing precision and stable quality. Machining dimensional accuracy is between 0.005 and 0.01 mm, independent of the complexity of the part. Most of the operations are done automatically by the machine, eliminating human error and increasing the consistency of batch part sizes.

A wide range of optional processing materials. The materials processed by CNC are relatively wide, including plastics and hardware.

If you are looking for a reliable CNC machining service to process plastic and metal parts. Please contact our professional team at info@duchgroup.com or contact us by visiting our website, we will provide quotes and suggestions free of charge.

Duch Group Provides customers with competitive solutions such as china prototyping services, mass production, small batch production, 3D printing, mold making, and injection molding. With more than 20 years of extensive production experience in the rapid prototyping industry, it is the world's largest rapid prototyping service company.

3D printing service china  is a collective term for a series of rapid prototyping technologies, the basic principle of which is laminated manufacturing. 3d printing service providers will use a computer-aided design model to produce a three-dimensional object. 3D printing service includes 3d design and printing services, 3d laser printing services, 3d model printing services, 3d plastic printing services, 3d prototyping service or 3d rapid prototyping services, etc. SLA printing service  and SLS 3d printing service are two common types of cheap 3d printing service china.

3D Printing Processes

SLA （StereoLithography）

Painted appearance models sla means laser curing rapid prototyping technology, the process of molding is to dip the photosensitive resin liquid through the workbench, and then irradiate the liquid surface by ultraviolet light, and the irradiated part is immediately solidified and formed. After the layer is formed, the workbench is lowered. The height of the layer, the liquid surface is re-impregnated through the workbench, and the ultraviolet light is subjected to curing irradiation of the next layer, so that the layer is solidified and formed to obtain a three-dimensional solid prototype.

SLA Processes:

1. Created by 3D modeling software, the 3D model of the 12 animal heads is produced, and the stl format is derived.
2. Import the file into Magics software for slicing.
3. Import the processed 3D files into the ProtoFab SLA light-curing 3D printer for 3D printing and curing.
4. Post-treatment process of 12 animal head models by cleaning, polishing etc.
5. Painting the polished animal head model.

SLM (Selective Laser Melting)

SLM represents elective laser melting, a kind of additive manufacturing, metal powder rapid prototyping technology, which can directly form metal parts that are close to full density and good mechanical properties. SLM technology overcomes the complicated process of manufacturing metal parts by Selective Laser Sintering (SLS) technology.

The SLM technology is a technique in which metal powder is completely melted by the heat of a laser beam and solidified by cooling.

3D Printing Materials

Resins: photosensitive resin, transparent resin, translucent resin, high-precision resin, high temperature resistant resin, high toughness resin, soft rubber, etc.

Nylon: nylon + glass fiber, nylon + carbon fiber, etc.;

Metals: mold steel, stainless steel, aluminum alloy, titanium alloy, copper alloy, etc.;

We offer a variety of post-processing methods ,such as paint, silk screen, water transfer, polishing, sand blasting, electroplating, vacuum plating and so on.

3D Printing Applicaitons

3D printing is involved in the jewellery, footwear, industrial design, construction, engineering and construction (AEC), automotive, aerospace, dental and medical industries, education, geographic information systems, civil engineering, firearms and other fields. Namely, 3D printing can be used in the entire industrial sector.

We are a Professional Reaction Injection Molding Manufacturer

We are one of the leading 3d prototyping companies in the world, providing cheap 3d printing service and creative products to a new era of personalized customization. We use the world's leading 3D printing technology, the world's largest SLA 3D printing molding equipment (maximum molding size of 2.4 meters), which can quickly convert your 3D data into physical, unstructured, industrial-grade high-precision 3D printing and ensure product dimensional accurac. Here you can find the rapid prototyping services you need for your project.

We have established many printing bases around the world. We have three printing bases in China (Xiamen, Suzhou, Chongqing) and nine production bases abroad (Norway, South Korea, Los Angeles, Germany, UK, Russia, Italy, France, Munich, Turkey) ). We plan to constructe the largest 3D printing public service platform and customized intelligent manufacturing cloud platform in China and the world, providing custom 3D printing services to users around the world, ensuring the production efficiency of hand prototypes to ensure that products are delivered on time.

If you are looking for professional and reliable 3d prototyping companies, please contact our professional team at info@duchgroup.com or contact us using the inquiry form on this website, we will provide quotes and suggestions free of charge.

Duch Group Provides customers with competitive solutions such as rapid prototyping services china, mass production, small batch production, 3D printing, mold making, and injection molding. With more than 20 years of extensive production experience in the rapid prototyping industry, it is the world's largest rapid prototyping service company.

1. High precision and Intelligent manufacturing

It adopts Germany imported Rietschle vacuum pump, ultimate vacuum to ensure complete defoaming; the inner tank selects 5mm thick stainless steel plate to effectively prevent rust and easy to clean; specially selects the aviation plug connection line and uses imported sealing glue to effectively guarantee Equipment is airtight.

2. Low cost and high efficiency

Using a rapid prototyping part or a CNCed model as a master mold, a high-strength silicone mold is produced under vacuum, then to clone the same replica as the prototype. A silicone mold can replicate about 20 products. The processing speed is more than ten times that of CNC, the processing cost is as low as ten or even dozens of times compared with CNC, which greatly improves production efficiency and greatly reduces the development cost, cycle and risk of direct tooling.

3. Small batches production for big size parts

The mold size is up to 1500mmX 1200 mm X 1200 mm, which can efficiently realize the copying of large complex workpieces in small batches production, help to examine the appearance and structural performance of the products, and avoid the risk of direct tooling.

4. Excellent mold operation

The soft molds after solidification molding are all transparent or translucent, have good tensile strength, and are easy to cut and shape.

5. Personalized customization

According to the specific application requirements of the customer, it provides multiple configuration customizations such as vacuum pump configuration, liner material, and operation mode (automatic/manual).

Back profile:

With our automated vacuum casting system, you will get free access to equipment usage training, 3D printing prototype production training, post-treatment process solutions, and lifetime technical support to help optimize production and maximize profit.

Duch Group Provides customers with competitive solutions such as rapid prototyping china, mass production, small batch production, 3D printing, mold making, and injection molding. With more than 20 years of extensive production experience in the rapid prototyping industry, it is the world's largest rapid prototyping service company.

Material Description: Acrylic plastic is commonly known as plexiglass, resistant to outdoor aging. It has excellent light transmission and good surface finish, and can print transparent and translucent products with certain strength requirements.

The disadvantage is that the surface hardness is slightly lower and it is easy to scratch.

Application: pmma injection molding is widely used in automotive lighting signs, door glass and lamp glass covers, also be used to model teeth for orthodontic treatment. Suitable for parts with transparent insulation and low strength requirements.

Production process: Injection Molding, CNC Machining

Cases

Student Graduation Design Case Study of Expressway Inspection & Emergency Treatment Engineering Vehicles

According to the renderings and 3D model data provided by the customer, select the appropriate production process, the surface is finely processed and delivered on time.

Fitness Equipment Case Study

After analysis, it was found that the product was the appearance model, the adhesion of the final product’s rubber paint should be considered.

Mask Model Case Analysis

This project is mainly made by hot runner technology.hot runner is used in injection molds,a heating assembly system that injects molten plastic particles into a cavity of a mold.

Analysis of CNC Machining Case of Great Wall Automobile Hood Analysis of CNC Machining Case of Great Wall Automobile Hood

According to the provided 3D model data and specific production requirements, strictly control the quality to ensure that the production parts are matched with the real car.

Duch Group Provides customers with competitive solutions such as cnc prototyping china, mass production, small batch production, 3D printing, mold making, and injection molding. With more than 20 years of extensive production experience in the rapid prototyping industry, it is the world's largest rapid prototyping service company.

What is abs plastic machining  ?

Project name：Yacht model

Material: ABS engineering plastics

Process: CNC machining

Post treatment: Painting, plating

Qty: 1 set

Advantages: high precision, fast speed and high processing efficiency

Production cycle: 15 days

Project requirements:

1. Precise proportion: The yacht model is made in 1:40 scale

2, perfect assembly, fine surface treatment, smooth lines of finished products and even colors

Project Background

The birth of a yacht begins with a drawing. After a rigorous review, the model of the yacht is produced. This is the conceptual model of the yacht. The customer can easily make the appearance review by making the yacht model.

Project pre-stage analysis:

After receiving the design drawings sent by the customer, the production department holds a preliminary analysis meeting, and through the cooperation of various departments, detailed analysis of each problem that the product needs to pay attention to.

Process and material selection:

The hull and superstructure are mostly made of ABS engineering plastics as raw materials, and some small parts are made of metal stainless steel. Most of the manufacturing processes are done by CNC machining. After processing, the model needs to be post-treated by grinding, painting, electroplating, etc. to enhance the appearance of the model.

Production process:

1. Disassemble and check the overall matching degree of the components: Combine with the CNC machining process, split the model to ensure that the components of each level can be processed; with the help of the software, the pre-analyst optimizes the assembly of the drawings and verifies the feasibility of the drawings. .

2. Programming on the machine: After preliminary analysis, programmed on the machine. In order to ensure that all parts can be finely processed, we carry out precision machining through the industry-leading CNC processing equipment to ensure the high precision of the product.

3. After the machining is completed, the rough assembly is carried out: After the CNC machining is completed, the parts are rough-assembled and necessaryly polished to ensure that the products are assembled correctly before painting.

4.Fine post-processing: according to the customer's specified requirements, the finished parts are polished, painted, electroplated and other post-treatment processes.

5. Strict quality inspection: Each component is inspected by the project manager and transferred to the quality inspection department who checks again to ensure that the product has no any quality problems.

6. Beautiful finished products

Duch Group can provide customers with CNC processing, 3D printing, product appearance processing (grinding, polishing, vacuun casting, spraying, silk screen, pad printing, electroplating, laser engraving, wire drawing, etc.) small batch personalized product customization, mass production and other services, which can help customers quickly verify the appearance of the product, help customers achieve high-quality sample manufacturing and rapid manufacturing. If you have the above needs, please contact us!

Duch Group Provides customers with competitive solutions such as cnc prototype china, mass production, small batch production, 3D printing, mold making, and injection molding. With more than 20 years of extensive production experience in the rapid prototyping industry, it is the world's largest rapid prototyping service company.