Selective laser sintering (SLS) is an additive manufacturing (AM) technique that uses a laser as the power and heat source to sinter powdered material (typically nylon or polyamide), aiming the laser automatically at points in space defined by a 3D model, binding the material together to create a solid structure.
SLA
Stereolithography (SLA, optical fabrication, photo-solidification, or resin printing) is a form of 3D printing technology used for creating models, prototypes, patterns, and production parts in a layer by layer fashion using photochemical processes by which light causes chemical monomers and oligomers to cross-link together to form polymers.
FDM
Fused deposition modelling (FDM), also known as the material extrusion additive manufacturing technique, utilizes polymers as the raw material (filament). The filament is usually heated to a molten state and then extruded through the nozzle of the machine (3D printer).
MJF
Mult jet fusion (MJF) is a 3d printing process developed by HP. This process is ideal for manufacturing end products, prototypes, design models and complex geometries in high and low numbers. The details are printed by applying an adhesive to a thin layer of plastic powder which is then sintered using a heating element.
SLM
The selective laser melting (SLM) is a method characterized by the application of metallic powder materials free of binders and fluxing agents, and the heating to melting temperature by a laser beam in such a way that the layer of metallic powder is fully molten throughout.