Effect of Pin Profile on Mechanical Properties of 6061 Al Alloy Welded Joints Prepared by Friction Stir Welding

摘要

This paper investigates the effect of the tool pin profile and friction stir welding parameters on the microstructure and mechanical properties of the 6061 aluminum alloy welded joints prepared by friction stir welding. It has been found that a fine grain microstructure obtained by hexagonal pin profile. But using a square pin profile produced a higher strength welded joints.