THEORETICAL AND EXPERIMENTAL STUDY FOR THERMAL STRESSES DISTRIBUTION IN (TIG SPOT) WELDS OF AL-MG ALLOY (5052).

Abstract

AbstractIn this study Tungsten Inert Gas spot welding (TIG Spot ) is carried out for Al-Mg alloy (5052) with the overlap join for sheet of 1mm thickness. Welding process iscarried out at different welding currents and times at a constant arc length (1.6mm).optimum welding conditions are determined depending on maximum shear force ofweld joint. Theoretical work is by using finite element method by utilizing program(Ansys 5.4 ) to calculate thermal stresses in TIG Spot at welding currents(80,100,110,120)Amp and welding times(6,7,8)sec.