Читать книгу Light Weight Materials - Группа авторов - Страница 20

Laser metal fusion (LMF) produces a 3D part from a powder bed by selectively melting the powder and fusing it in a layer-by-layer fashion onto the fundamental substrate used exclusively in medical implants for the construction of ultra-light hollow components. In this technique, the component is constructed on a substrate plate that is coated with a layer of metal under an inert gas atmosphere (Garmendia 2019). The metallic layers are increased in the same continuous process until the part is completely constructed, individually 20–100 microns are identified between each layer. The amount of powder added at each layer can be precisely controlled by the distinguished powder delivery system. The finalized product undergoes laser polishing during its post-processing.

Figure 1.7. Laser metal fusion method (Peyre 2008). For a color version of this figure, see www.iste.co.uk/kumar/materials.zip