Selective Laser Melting AlSi12 Alloy by Utilizing of Non-Spherical Air-Atomized Powder

AlSi12 alloy is one of the most widely used materials in selective laser melting. Selective laser melting (SLM) of AlSi12 alloy has been well studied in recent years. Researchers typically use very expensive spherical powders atomized in an inert atmosphere. For this paper, we studied SLM of air-atomized non-spherical powder to determine its printability. Nine specimens were fabricated using different SLM process parameters. The lowest porosity that was achieved was 1.3%.