ABSTRACT
Friction stir welding is an efficient technique in joining of dissimilar materials. Aluminium alloys AA2014 and AA7075 were joined by Friction Stir Welding by varying parameters like tool rotational speed, transverse speed and tool pin profile. The optimum parameters are found out by Taguchi technique using Taguchi’s L9 orthogonal array. Also the contribution of each parameter on the joint quality is found out with the help of signal to noise ratio and Analysis of Variance (ANOVA) studies and an experiment was carried out on optimized parameters. Also, the microstructure of the welding joints was studied using optical micrography.
