Additive manufacturing (AM) is considered a revolutionary technology for manufacturing complex geometries, offering many advantages. Among different AM

techniques, laser-based powder bed fusion of metals (PBF-LB/M) was found a promising processing method. However, several drawbacks (e.g., productivity and

dimension limitations) can adversely affect the employment of AM components in envisaged applications. This brings welding and joining techniques into play to

integrate AM metal parts into larger assemblies. Therefore, it is necessary to well understand and establish the relationship between the welding process, the

microstructural evolution, and the performance of the structure in order to maintain the structural integrity of welded structures throughout their service life.

This work includes a screening study to bridge the gap between the microstructural characteristics and mechanical properties of additively fabricated AlSi alloys welded

by different welding processes such as friction stir, electron beam, and tungsten arc welding.