Effect of Plunge depth on Mechanical properties of Friction Sir welded copper joints

Abstract

In this study different tool shoulder plunge depth was applied on the work surface during friction stir welding of copper. The hardness and tensile strength of welded joints were investigated. The welded joint prepared with 0.3 tool plunge depth exhibited better tensile strength and hardness with good bead appearance. The tool pin wear was also analyzed with the multiple distance of welding. The understanding of the plunge depth and tool wear would be advantageous to estimate the tool pin profile shape and weld parameters during welding of copper.