Process parameter optimization and Characterization of friction stir Welding of aluminium alloy AA 5083

Abstract

AA 5083 is an Al Mg based alloy which possesses many newlineinteresting characteristics such as structural material moderately high newlinestrength good corrosion resistance and low price These advantages of the newlinealloy are quite attractive in the automobile industries and marine applications newlineConvectional welding processes are found inadequate in welding aluminium newlinealloys because of their higher conductivity hot cracking and high incidence of newlineporosity Another important issue in welding aluminium magnesium alloys newlineis the pronounced vaporization of alloying elements The selective newlinevaporization of volatile alloying elements especially magnesium causes a newlinemetal composition change in the joint thus affecting the mechanical newlineproperties and the corrosion resistance of the weld Laser welding and newlineFriction Stir Welding FSW are the feasible solutions to overcome this newlineproblem as lower heat input welding techniques newlineFSW is a solid state welding process in which the process newlineparameter plays a vital role in determining the output quality characteristics of newlinethe weld The process parameter optimization of FSW process enhances the newlinequality of the weld further newline newline newline