he objective of this work was to investigate the mechanical and metallurgical properties in
order to demonstrate the feasibility of friction stir welding for joining A16061 and A16063
aluminum alloys Welding was performed on cylindrical parts with different thickness 2mm and
3mm, five rotational speeds,485,710,910,1120 and 1400 rpm and a traverse speed 4mm/min was
applied. The tests were conducted for the study to determine the mechanical properties (maximum
stress - the percentage of elongation) and hardness measurement along the welded sections using
the Vickers method, was also studying the crystalline structure of welded joints .The FSW welds
exhibited many advantages over traditional arc welding techniques.