Effect of optimised process parameters on FSP AZ31B alloy

Friction stir welding (FSW) is a solid state welding process, widely emerging its usage in various manufacturing applications, used for joining similar & dissimilar metals mostly used for aluminum alloys. The present investigation is carried out on magnesium alloy (AZ31B) plates using FSW technique by varying the process parameters viz. tool material and tool pin profile while keeping the other parameters to a constant value. The output parameters are ultimate tensile strength, hardness and joint efficiency were studied for the above parameters for rotational speed of 900rpm & 1400 rpm, feed rate of 20mm/min, tilt angle 1° and axial force of 5KN. The optimum conditions have been found for the best weld quality with superior mechanical properties.