Slm Metal 3D Printing Services

Slm Metal 3D Printing Services

SLM technology, short for selective laser melting, is a rapid prototyping technology for metal powders. SLM can directly form near-fully dense metal parts without the need for adhesives. Therefore, this technology is also called direct metal laser sintering, and the precision and mechanical properties of prototypes made by SLM are superior to SLS, so it is becoming more and more popular in 3D printing.

SLM technology requires a high-power laser because the metal powder is completely melted to form metal parts directly. Before the high-power laser beam can start scanning, the horizontal powder roller needs to first spread the metal powder on the substrate of the processing chamber. The laser beam then selectively melts the powder on the substrate based on the contour information of the current layer to obtain the contour of the part processed by the current layer. After that, the lifting system will drop the distance of one layer thickness. The powder spreading roller respreads the metal powder on the processing layer, and the equipment enters the next layer process. Each layer is treated like this until the entire section is complete. In order to prevent the metal from reacting with other gases at high temperatures, the entire process needs to be carried out in a vacuum or gas-protected treatment chamber.