Additive Manufacturing of Metals

This lecture covers the process of additive manufacturing of metals, focusing on techniques such as Laser Powder Bed Fusion (L-PBF) and Electron Beam Melting (EBM). It explains the concept of layer-by-layer component building, the differences between additive and subtractive manufacturing, and the applications in various industries. The lecture also delves into the economical aspects, energy consumption, parameters influencing part quality, support structures, surface properties, and the thermo-mechanical history of additive manufacturing. Challenges like material selection, warpage, powder porosity, incomplete melting, and 'keyhole' porosity are discussed, along with microstructure comparisons between casting and L-PBF of AlSi10Mg alloy.