Optimization of process parameters of friction stir welded dissimilar AA6063 and AA5052 aluminum alloys by Taguchi technique

Abstract

Friction stir welding is a non consumable material state welding process for joining of dissimilar aluminum alloys and is used in aerospace, railway, automotive and nautical industries. The welding excellence of this friction stir welding type depends upon the process parameters such as the rotational speed of the tool, the welding speed, and the tilt angle. Welding of dissimilar aluminum alloys AA6063 and AA5052 plates is carried out by friction stir welding process and the process parameters are optimized using Taguchi L9 orthogonal design of experiments. The optimum process parameters are identified to maximize the tensile strength of the weld joint. The ideal range of process parameters and their possessions upon the strength of the weld joints is analyzed by ANOVA. The sheets are effectively welded by friction stir welding process and the welded sheets are experienced the tension test at room temperature to scrutinize the strength. The result shows that the welding speed is more influential than the feed and tilt angle to join these dissimilar joints.