Page 183 - Fundamental of Engineering Design
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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).
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Figure 5.7 : Schematic diagram of PBD process
