Effect of Powder Reuse on Mechanical Properties of AlSi10Mg Alloy Manufactured by LPBF

Aluminum alloys used in part manufacturing with LPBF, particularly the Al-Si-Mg series, are widely utilized across various industries due to their excellent thermal conductivity and corrosion resistance. However, the high cost of these materials is a significant drawback, as high-purity metal powder is required to enhance dimensional accuracy and surface roughness. Therefore, powder reuse is essential. This study investigates the effects of powder reuse on the mechanical properties of AlSi10Mg alloy produced LPBF. The powder was analyzed over 16 times, including the initial use of new powder and 15 times reuse. Parts were manufactured in 15 times, and the changes in the properties of both the powder and the parts were analyzed. The results indicate that the powder can be reused up to 15 times without significant issues.