Optimization Of Friction Stir Welding of Commercial Dissimilar Aluminium Grades HE30 & HE9 Using Taguchi Approach

Abstract

Aluminium alloy commercial grades6082 and 6063 are widely used in industrial application. For the joining of these grade material TIG welding can be preferably used. Friction stir welding (FSW) is the mechanical type joining process produces high welding strength without adding filler material. In this research article, experimental study is carried out on Al6082 and Al6063 to check weld quality and hardness of friction stir welding samples. Taguchi method and L9 orthogonal array is used for design of experiments. Comparative results revealed that friction stir welding gives tensile strength of weld upto123.23 N/mm² and maximum hardness upto 54Hv at welding nugget zone.