Sasikumar
Gopi. S
Vadivel S.M
Abstract
Friction stir welding (FSW) is a solid state welding process for joining metallic alloys and has emerged as an alternative technology used in high strength alloys that are difficult to join with conventional techniques. FSW is used to produce satisfactory products with better mechanical properties and better cost efficiency. In this paper the five welding parameters – spindle speed, welding speed, pin profile, shoulder profile and shoulder penetration were considered and the friction stir welding was performed on AA 6082-T6 aluminium alloy. Using Taguchi orthogonal array methodology the experiments were conducted and the tensile strength of the welded joint was measured using universal tensile testing machine. The optimum level settings and the major parameters that influence the joint strength were obtained by Taughi's approach and the process variance was found. The experiments were conducted to validate the optimum parameter settings.
Keywords- Friction stir welding (FSW), Aluminium alloy, Tensile strength, Taguchi Method, Signal Noise ratios