Which powder bed fusion (PBF) method can use polymer, ceramic, or composite build materials?

Selective laser sintering (SLS) is a powder bed fusion method well-known for its ability to utilize a variety of materials, including polymers, ceramics, and composites. The process involves the use of a laser to selectively fuse powdered material layer by layer to create a solid object.

SLS primarily uses thermoplastic polymers, making it popular in industries for prototyping and production parts. However, it is also capable of processing ceramic powders and composite materials, expanding its versatility. The ability to use multiple material types allows manufacturers to create parts with tailored properties for specific applications.

This flexibility in material usage sets SLS apart from other additive manufacturing techniques, such as electron beam melting, binder jetting, or direct metal laser sintering, which have more limited material compatibility focused primarily on metals or specific types of composites.