The Influence of Technological Parameters on the Structure and Properties of the Selective Laser Melting Al–Cu–Mg–Si Alloy

Abstract—Monolithic and bulk-structured samples of different densities were produced by means of selective laser melting on the 3D-metal printer Realizer SLM 100. An evaluation of their quality and structure characterization were carried out. Correlation of parameters of synthesis—intertrack distance and layer thickness at 200 W laser power, and structural characteristics were determined. According to the experimental results, optimal parameters of the synthesis were found for obtaining samples from AK6 alloy with dispersed structure and high mechanical properties. Correlation of the fine structure paramerers of the volume-structured samples with cubic geometry and synthesis parameters were established, types of defects that affect their mechanical properties were determined.