Per: GABRIEL MOREIRA GONCALVES (IME), Thaissa Sampaio Nunes (IME), Julianna magalhaes Garcia (IME), Talita Gama de Sousa (IME), Luiz Paulo Mendonça Brandão (IME)
Abstract:
Additive manufacturing (AM) provides efficient engineering approaches for the direct manufacture of structures with certain complex geometries. Among the AM techniques for metal manufacturing, powder bed fusion - laser (PBF-L) is the most widespread and currently used. However, PBF-L production still presents challenges. In view of this, this study addressed the development of the selective laser melting process showing how each process parameter can affect product quality. It was shown that due to the manufacturing strategy, some characteristics can be evidenced, such as porosity, residual stress, and a unique microstructure. It was highlighted that the factors that trigger such aspects are the process parameters related to the laser, powder material and powder bed. For this reason, recent research on the main metallic materials used in PBF-L was also presented. With this, it was possible to conclude that it is desirable to establish an elaborate correlation between process parameters, microstructure, and mechanical properties to obtain an additively produced part by selective laser melting with qualities similar or superior to those of parts produced by conventional processes and that meet project requirements