OPTIMIZING THE PROCESS PARAMETERS OF FRICTION STIR WELDED JOINT OF MAGNESIUM ALLOY AZ31B

G.Surya Prakash Rao, B.Balu Naik, Abhijith Datta

Abstract: This paper deals with Friction stir welding of AZ31B Mg alloy by using H13 Tool at different rotational speeds and welding speeds .Experiments were conducted according to L4 Orthogonal array which was suggested by Taguchi. Optimum parameters for optimum Tensile strength, Hardness and Ductility were found with the help of S/N ratios. Therefore optimization of input process parameter is required to achieve good quality of welding. In this experiment the effect of process parameters on welded joint was studied and optimizes the parameter by using Taguchi method and stated regression equation for tensile strength and hardness. Assigns the rank to each factor which are having more influence on the mean of tensile strength and hardness.

Keywords: FSW, Taguchi, DOE, Tensile Strength, Hardness, Ductility

DOI: https://doi.org/10.15623/ijret.2014.0305106