“…FSw of Aluminum Alloy (AA) plates is one of the rigorous research areas that is being exploited for the past two decades, since the advent of this joining technology. The process parameters of FSw process such as tool pin profile and tool geometry [4], tool rotational speed [5], weld speed [6], axial load [7], tool tilt angle and tool offset are experimented to obtain an optimal condition for successful and quality welds. Tool material study is another area where it is tested for suiting high strength materials like steel [8], whereas for AA high-speed steel will suffice.…”