Technology

SLS is the abbreviation of selective laser sintering. The selective laser sintering process principle is contour of prototype which need to be processed into each layer, along the CAD path, the laser scan on each layer of PA powder, the illuminated powder melt into solid liquid, layer by layer accumulated to form the outline of the prototype. Then the table cooling after the machine stopped, and the liquid cooled molding.

What kind of prototype are suitable for SLS processing method to make?

◆ Precise dimensions are required;

◆High-temperature resistance during functional test are required;

◆Impact-resistance during functional test are required;

             

The data you need to provide to us if you adopt SLA prototyping processing:

◆ First, Please send us 3D drawing with entity diagram;

◆Second, change the 3d drawing to picture of the suffix STL;

 Pay attention: Should change thechord heightandangle control of the STL dialog deviation control options to0.0000 during conversion.

                     

    before adjusting (coarse)               after adjusting(smooth)    

                  

SLS  machine

The difference between SLS and SLA:

◆The material is different, SLS sintering adopt PA powder to process, whereas SLA adopt photosensitive resin.

◆SLS prototype can resist high temperature and impact powder, and the strength is good. But SLA is easy to deform when the temperature over 60 degree celsius, and the strength is poor ,easy to break.

◆The surface post –processing treatment of SLS is less convenient than SLA ;

CNC Prototype is very good in both performance;