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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.

GKLM series vertical grinding mill is one advanced powder making mill through our engineer research and experience and bringing in advanced technology of the world. It is ideal equipment for superfine milling industry which integrated with crushing, drying, grinding and collecting. It is widely used in cement, power, metallurgy, chemical, non-metallic minerals industry.

Vertical Roller Mill Technical & Structural Benefits:

High yield, low energy consumption;

Two-way buffering structure design of hydraulic cylinder, work more smoothly;

Grader adopts 5 groups of horizontal grading wheel structure, dynamic balance correction, high classification accuracy;

Advanced hydraulic station, cooling station system;

Intelligent control.

The vertical grinding machine is a kind of advanced grinding equipment designed and developed on the basis of the extensive use of advanced technology at home and abroad, combined with many years of various mill machine production experience. It is an ideal equipment for grinding industry, which integrates crushing, drying, grinding and grading transportation. It can be widely used in cement, electric power, metallurgy, chemical industry, nonmetallic mineral industry and so on. It is used to grind lump, granular and powdery raw materials into the required powder materials.

The main structure of the vertical grinding machine

Vertical grinding machine mainly consists of powder separator, grinding roller device, grinding disc device, the pressure device, reducer, motor, shell and so on. The separator is a highly efficient and energy saving powder separator. Grinding roller is used to crush and crush materials. The millstone is fixed on the output shaft of the reducer and is the place where the grinding roller compacts the material. The pressurizing device is a component for grinding roller to provide enough pressure to crush material.

Working principle of the vertical grinding machine

When the vertical grinding machine is working normally, the motor drives the grinding disc to rotate through the reducer, and the material falls from the feed inlet to the center of the grinding disc through the lock air feeder. With the rotation of the grinding disc, the material moves to the edge of the grinding disc under the action of the centrifugal force. Through the ring groove on the grinding disc, the material is crushed by the roller rolling. The crushed material is brought up at the edge of the grinding disc by high-speed airflow from the wind ring and the large particles fall directly onto the grinding disc to re-ground. When materials in the air flow pass the upper separator, under the action of rotating rotor, the coarse powder falls from the cone bucket to the grinding disc and is re-ground. The qualified fine powder goes out with the airflow and is collected by the dust collecting device, that is, the product. Materials containing moisture are dried in contact with hot air flow. By adjusting the hot air temperature, it can meet the requirements of different humidity materials and achieve the required product moisture. By adjusting the separator, the required thickness of different products can be achieved.

Main features of the vertical grinding machine

1.Low investment cost

Due to the integration of crushing, drying, grinding and grading, the system is simple and the layout is compact. The area is about 50% of the ball milling system, and it can be arranged in the open air. Therefore, the investment cost can be reduced greatly.

2.Low operating cost

(1)High grinding efficiency : using the grinding roller to directly crush the material on the grinding disk, low energy consumption, and 30% ~ 40% less energy consumption than ball grinding system.

(2)Less abrasion: longer service life and less wear due to the fact that the grinding roller does not contact the grinding disc directly during work and that the grinding roller and the lining plate are made of high quality materials.

3. Strong drying ability

Because the hot air directly contacts with the material in the grinding, it has strong drying ability and saves energy. By adjusting the hot air temperature, it can meet the requirements of different humidity materials.

4. Easy operation

(1)The system is equipped with automatic control system, which can realize remote control and easy operation.

(2) Vertical grinding machine is equipped with equipment to prevent direct contact between roller sleeve and disc liner to avoid destructive impact and severe vibration.

5. Stable product quality

Because the material stays in the grinding for a short time, it is easy to detect and control the product granularity and chemical composition, reduce the repeated grinding, and stabilize the product quality.

6. Convenient maintenance

Overhauling the oil cylinder, turning the rotating arm, replacing the roll sleeve and liner plate is convenient and quick, reducing losses in downtime.

7. environmental protection

Vibration is small, noise is low, and the whole equipment is sealed, the system works under negative pressure, no dust spillover, clean environment, and meets the national environmental protection requirements.

The process flow of the flour mill grinding machine

According to the location of humidifying tower and dust collector, the vertical grinding machine has two different layout schemes, namely, the three fan system and the double fan system. A cyclone collector is used for the collection of products. This arrangement reduces the working negative pressure of the system and the amount of gas passing through the dust collector. The electric dust collector can also be replaced by the bag dust collector as the final dust collector. The dust collector can be the electric dust collector or the bag collector, and the grinding gas is directly entered into the dust collector. The system reduces the number of equipment and simplifies the system configuration.

Application field

Preparation of coal powder for special steel mills, power plants and cement plants and production of a large amount of powder for coal gangue;

Desulphurized limestone powder for the special power plant; The production and preparation of hundreds of mineral bulk powders with various hardness in the non-metal mining industry;

Powder grinding of steel slag, blast furnace slag, power plant slag and fly ash in special steelworks;

High yield and fine grinding of quartz and pyrophyllite powder in glass fiber industry;

Large output powder production of various chemical raw materials in special chemical industry;

Industrial preparation of high yield powders for various materials in more than 100 other industries.

At the same time, there is a good development prospect in the pre-grinding of fine slag powder and cement clinker.

Pendulum mill is also called as suspension roller or Raymond mill. It is a "ring and roller" powder-making mill equipment, which is combined with air flow screening and pneumatic conveying. The pendulum grinder belongs to the roundel immovable mill and has high universality. It also has the characteristics of continuous powder making dry-type, the concentration of grain size, continuous fine fineness, compact structure and so on. The particle size of the pendulum grinding mill can be adjusted in the range of 0.125-0.044mm (equivalent to 120-325 mesh) according to different requirements.

The Application Ranges of the Pendulum Grinding Mill

The pendulum roller mill is widely used. Common grinding materials and usage ways are as follows:

Soil types: clay, China clay, bentonite, magnesia, clay, bauxite, etc.

Non-metallic ores: gypsum, talc, graphite, fluorite, calcite, limestone, calcite, barytes, apatite, tabular spar, feldspar, quartz and so on.

Metal oxides: manganese iron ore, chromite, Ilmenite, bauxite and so on.

Chemical compounds: coke, lime coke, smelting coke, barium sulfate and so on.

Others: the products of the pendulum grinding mill can be used in many industries. For example, the metallurgical industry produces the magnesia as the refractory layer of blast furnace; the oil industry uses the barytes powder to seal the injector; some industries produce bentonite powder as the lubricant for drilling; the chemical industry produces different stone powder as the filler in rubber, plastics, paper making and paint; porcelain, glass, enamel, white cement, gypsum and magnesia products are all processed by pendulum grinding mill.

The pendulum grinding mill is mainly used for grinding non-inflammable and explosive mineral materials, Moh’s hardness of which is below 7 level and humidity of which is below 6%.

Operation Principle of the Pendulum Grinding Mill System

The bulk material is broken by the Jaw crusher to a certain size (powdery or fine particles can not pass through the Jaw crusher), and the material is conveyed vertically to the hopper by a bucket elevator. Then, the electromagnetic vibration feeder delivers the materials quantitatively, evenly and continuously into the main machine for grinding. The pulverized fines are carried out by the blower’s airflow and graded by an analytical machine placed above the main engine. Suitable fine powder that meets the requirements will be entered into the large cyclone separator with the air flow. After separation, the powder will be discharged through the discharge pipe, that is a qualified product. The air flow enters the blower by the return duct at the upper end of the cyclone separator. The whole airflow system is closed loop and operates under negative pressure. Because the grinding material contains moisture, when milling the moisture will evaporate into gas. That gas then leaks in each connection of the whole pipe, which makes an increase in the volume of air in the circulating air stream.

This increased air volume will be introduced into the small cyclone separator from the air duct between the blower and the main engine. The fine powder with the air flow is collected by the small cyclone separator. Then it will be discharged by another outlet pipe. The gas will be discharged into the atmosphere through the exhaust pipe of the upper end of the small cyclone separator.