SLS (Selective Laser Sintering) printing was invented by C.R. Decherd of the University of Texas at Austin.It is one of the 3D printing technologies with the most complex forming principles, the highest conditions, and the highest cost of equipment and material. However, it is still the most far-reaching technology to the development of 3D printing technology.
SLS printing is similar to SLA printing in that you need to use lasers to solidify the entire substance.The difference is that infrared laser beam will be used in SLS printing, and the material is not the photopolymer resin but the combined material, such as plastic, wax, ceramic, metal powder, and nylon powder.
>>How It Works
The powder material is sintered layer by layer at high temperature under laser irradiation, and the computer controls the light source positioning device to achieve precise positioning. By repeating the process of laying out powder and melting where needed, the parts are built up in the powder bed.
>>Comparison of Advantages and Disadvantages
Advantages:
Suitable for complex mechanisms and special geometric parts
Supports small batch/customized production
Strong toughness, good hardness, no extra support, short processing period, and low cost
Disadvantages:
The surface quality of SLS printing is not as good as that of SLA resin 3D printing
High equipment costs and maintenance costs
>>Optional materials
l Nylon White/Grey/Black PA12
Performance:
Strong toughness and good hardness
It can be processed and assembled twice.
>>Industries With SLS 3D Printing
Functional testing, such as prototype processing for appearance or R&D design
Small batch/customized production, including customized gifts
Suitable for industries that require precision and complex mechanisms, such as aerospace, medical, mold, 3D printing surgical guides, etc.
Contributor: Daisy