Page 183 - DJJ 40173 compile notes - E-BOOK NEW EDIT WITH INDEX_Neat

Powder Bed Fusion

◦ Powder bed fusion encompasses a variety of AM techniques including

direct metal laser melting (DMLM), direct metal laser sintering (DMLS),
electron beam melting (EBM), selective laser sintering (SLS) and selective

heat sintering (SHS).

◦ Electron beams, lasers or thermal print heads are used to melt or partially

melt fine layers of material after which excess powder is blasted away.

◦ The Powder bed fusion process uses any powder based materials, but

common metals and polymers used are: SHS: Nylon DMLS, SLS, SLM:

Stainless Steel, Titainium, Aluminium, Cobalt Chrome, Steel EBM: titanum,

Cobalt Chrome, ss, al and copper (Materials Arcam, 2014).