2006•Journal of Welding and JoiningRequires access

Effect of $CO_2$ Welding Conditions on Property of Strength in Welded Joint of SPC Steel

Song Jun-Hee, Choi Jun-Yong, Jae-Kyoo Lim

Abstract

It is necessary to investigate the welding performance and fracture resistance of welding part in structure. This study presented a most suitable condition of welding process for butt and lap joints by arc welding which is widely used in the vehicle structure. Also it was conducted to tensile and fatigue test under various welding conditions. For butt and lap joints, the best conditions of welding voltage and current were 30V and 320A, respectively, in 3.2 and 4.5 mm thick steel plate. Under this condition it could be taken the highest tensile strength and fatigue strength, and a good bead appearance.

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Key concepts: Welding, Materials science, Butt joint, Ultimate tensile strength, Electric resistance welding, Arc welding, Flash welding, Heat-affected zone