Additive manufacturing This technical term expresses how this production process differs from processes such as injection molding: It does not involve material being poured into a mold or a workpiece being carved out of a block of material. Instead, the component is calculated on a computer and the 3D model is built up layer by layer — in a process of addition, so to speak.
Selective laser sintering In this 3D printing process, the product is created when a plastic or metal powder is laid on in layers and melted at the key spots with a laser. The finished product finally lies in a bath of powder that has not yet been melted and is then separated from it.
Stereolithography printer Here too, a laser creates the component. However, instead of a powder, a plastic solution is laid down and then hardened by means of UV light.
Multi Jet Fusion This is a further development of the selective laser sintering process. The difference is that the shape that is to be printed is sketched out in black paint, and then the entire powder layer is exposed to a heat source. The dark areas heat up quickly and melt.
Fused deposition modeling (FDM) This printer works in the same way a baker uses an icing bag: A strand of plastic is rolled off the spool, heated, and applied with a nozzle, layer by layer.