Blogs/News/PSAs

Selective laser sintering (industrial sls 3d printer) is an additive manufacturing (AM) technique that uses a laser as the power source to sinter powdered material (typically nylon/polyamide), aiming the laser automatically at points in space defined by a 3D model, binding the material together to create a solid structure.

ProtoFab SLS 660

Our ProtoFab SLS printers are under development and will be availabl soon.

ProtoFab Vistar 3d printed car grill

Name: Car bumper (Length: about 1.6M )

Process: SLA rapid prototyping, vacuum Casting

Uses: design, structural verification, Vacuum Casting

Manufacturer: Vistar(ProtoFab) 3D printing Printer

SLA1600

SLA1600 is a new ultra-large 3D printer developed by Vistar for the large-format requirements of the UV-curing 3D printing market. It has a large printing format of 1600×750×550mm, which meets the urgent demand of rapid prototyping field ,such as manual model making and car styling and design. it can achieve integrated printing large-scale prototypes, such as, car grilles, bumpers, dashboards etc. Effectively avoiding product errors and labor waste caused by splicing. At the same time, the rapid prototyping capability of Vistar UV-Curing 3D printers has increased Vistar production efficiency by more than 10 times

Production Process

1. Open the file of car bumper design and export the STL format data.

3D modeling diagram of car bumper

1.Import files into Magics software for slicing

Support

1.Import the processed three-dimensional documents into the printer SLA1600, and solidify the three-dimensional printing process without manual guard. At the same time, many kinds of structures can be designed and printed out in batches, and the best scheme can be obtained through one-time testing, thus ,reducing the time of repeated testing and proofing. Using Vistar 3D printer, the test data and final plan of the product can be obtained in 1-2 days.

Printing

2. cleaning and polishing the printed bumper model after printing

Polished parts to make the product more finer and smoother

3.The polished surface of the model is smoother, it is can be used for structural verification or as prototype for vacuum casting .

THE ADVANTAGES OF Sla1600

SLA1600 has a large printing format of 1600 × 750 × 550mm, equipped with high-end optoelectronic devices, combined with highly efficient and stable control software Sirius and the world's first DLC variable laser power printing technology, 3 field lens and 3 lasers (multi-field lens selectable ),Also ,it is combined with the self-developed variable spot technology, greatly improves printing efficiency and precision, and it takes only 10 hours to print a car bumper.

Conclusion:

Vistar's ultra-large 3D printers provide reliable and lower cost 3D printing solutions for the automotive, aerospace and other industries. The small batch of finished samples is an important part of the prototype trial stage. The quality of the prototype is especially important for the perfect tooling design and prototype test, so it must meet the short production cycle and high dimensional accuracy.  Vistar combines 3D printing with vacuum casting together (vacuum casting  and reaction injection molding ) to create a rapid mold manufacturing method that saves development costs and shortens development cycles.

The new technology for advanced dynamic 3D roll forming can produce profiles with asymmetrical cross-sections both in depth and width, allowing for an immense variety of shapes through a rotational and traversing movement of all the roll forming heads. In contrast to many other processes, the sheet metal is not thinned out during roll forming.

A numerical control system allows you to manage the more than 100 dynamic axes of the variable section roll formers, and the operator can freely program the machine, obtaining the requested section variations. One of the reasons that the method is so valuable for manufacturers is that machines are designed to be used with cold forming steel at very high strength levels. In fact, the higher the strength of the steel the more suitable it is for roll forming.

3D roll forming can be applied to low thickness materials (1.0mm), for the construction and automotive sector, and also to high thickness materials (up to 11.0 mm) for the transport sector (beams of lorries, trailers)

We also provide cold roll forming machine for such technologies involving:

1. Cutting rectangular blanks, checking and correcting camber
2. Shaping blanks, removing excess material
3. Roll forming with variable section
4. Calendering and piece perforation

3D roll forming technology changes your perception of profiles, by introducing an additional degree of freedom in the roll forming process.

What is 3D Printing Service?

3D printing technology is a collective term for a series of rapid prototyping technologies, the basic principle of which is laminated manufacturing. 3d printing service china 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 printing service are two common types of 3d model printing services.

3D Printing Processes

SLA（StereoLithography）

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)

3D Printing Materials

3D Printing Applicaitons