Tensile strength performance and optimization of Al 7068 using TIG welding process

Abstract

The current scenario, to achieve better welding strength and quality of welded joints are challenging task. Tungsten Inert Gas (TIG) welding is one of the efficient welding methods to attain the quality of welded joints without any defects. The arc stability and intensity of the TIG welding was better than other welding processes. The aluminium 7068 was the superior strength alloy which it was processed under TIG welding method. The welding strength was estimated through different combinations of input factors such as current, voltage and weld speed. The parametric optimization was achieved through Taguchi method. The factors involvement and its effects have been studied through variance analysis and contour plot investigations.