The starting material is a metal powder, such as stainless steel, aluminum, or titanium. In an insulated chamber the metal powder is applied in thin layers of approx. 30 μm (0.03 mm) on a substrate plate. Based on the data of the CAD model, the laser moves over the powder layer and melts it according to the calculated areas, creating a homogeneous metal structure. The substrate plate is then lowered again to apply the next powder layer. The laser becomes active again and melts up precise areas of the metal powder according to the CAD data. In the process, the lower layers are bonded by laser melting. Layer by layer, the tailor-made product or a whole series of products is created.