Optimization and Characterization Studies of Dissimilar Friction Stir Welding Parameters of Brass and Aluminum Alloy 6063 Using Taguchi

This paper focuses on optimizing process parameters such as tool rotating speed, preheat-treated workpiece temperature, traverse and pin profile for dissimilar friction stir welding (FSW) of brass AA 6063. The hardness the stir-welded joint created is measured a response variable. Taguchi design experiments approach was utilized to finalize experimental strategy, ANOVA employed analyze data. best input factors better weld harder FSW were predicted. results show that influenced defects in welds following order: rotation speed (28.98%), geometry (22.30%), travel (11%), temperature preheat treated (10.95%), respectively. Optical microscopy identified three distinct zones: nugget zone, thermomechanically affected heat-affected zone. zone had maximum value (around 27% increase) due formation very fine recrystallized grains.