Effect of process parameters on forming quality of SiCp/TC11 titanium matrix composites by selective laser melting (SLM)

Abstract

In this paper, SiCp/TC11 titanium matrix composites were prepared by selective laser melting. The influence of laser process parameters on the forming quality of composites was studied by control variable method. The results show that the process parameters have a significant effect on the forming quality of the composite material. The laser power has the greatest influence on the density, followed by the scanning spacing, and the scanning speed has a relatively small influence. When the laser power is 160 ~ 180 W, the scanning speed is 1 000 ~ 1 200 mm/s, and the scanning spacing is 0,1 mm, the forming quality of the sample is better.

Keywords

• TC11 titanium alloy
• SiCp
• SLM
• process parameter
• surface morphology