In industry, additive manufacturing (AM) is prized for low-volume production runs and complex parts that would be hard to make any other way. Rather than a single method, AM is a family of processes; three of the most important in industry are powder bed fusion, material extrusion and selective laser sintering.
The three differ in how they turn raw material into a solid layer, whether by melting metal powder, extruding molten plastic, or sintering polymer powder, but all build the part up one layer at a time.
Powder Based Fusion (PBF)
It is an additive manufacturing technique that uses directed thermal energy to fuse layers of powdered material, forming a 3D object.
Powder bed fusion (PBF) uses a directed beam of energy, a laser or an electron beam, to fuse a thin layer of powder exactly where the part's cross-section lies. A recoater spreads a fresh layer, the platform lowers, and the beam fuses the next slice. Selective laser melting (SLM) and electron beam melting (EBM) fully melt metal powders such as titanium, producing dense, high-strength parts for aerospace brackets and medical implants, including intricate internal geometries impossible to make with traditional methods.
Selective Laser Sintering (SLS)
SLS is an additive manufacturing technique that uses a laser to fuse small particles of material into a solid 3D shape for rapid prototyping.
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