SLM technology is a close relative of DMLS and SLS but rather than the laser sintering the metal powder, it melts it. So, as DMLS printers heat the powder up for the grains to fuse together, SLM machines melt them to become a liquid and solidify together completely. This leads to the parts coming out stronger and less porous. These 3D printers can help get parts from metals like steel, titanium, chrome and many other alloys.