Question

powder bed fusion technologies (pbf) use the information below to answer the question. powder bed fusion (pbf) only uses metal. there is no sand, plastic, or polymer. powder bed fusion (pbf) is not a desktop technology, as it is a big machine that uses a lot of heat. while selective laser sintering (sls) uses a bed of polymer powder, pbf uses a metal powder. pbf uses support material to help keep the print from warping. unlike binder jetting, the print is finished when its taken out of the powder box and does not need to be placed in a furnace. these are two different powder bed technologies: direct metal laser sintering and selective laser melting. direct metal laser sintering - fuses the particles together - there isnt a full melt - uses alloy metals selective laser melting - melts the parts together - it creates a homogeneous part - uses elemental metals direct metal laser sintering and selective laser melting are both technologies of what 3d printing process? powder bed fusion (pbf) fused filament fabrication (fff) vat polymerization (vat) material jetting (mj)

Explanation:

The text clearly states that Direct Metal Laser Sintering and Selective Laser Melting are powder bed technologies and that Powder Bed Fusion (PBF) is a type of 3D - printing process which uses metal powder and includes these two technologies.

Answer:

Powder Bed Fusion (PBF)