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JWJ > Volume 24(3); 2006 > Article
Journal of KWJS 2006 June;24(3) :22-26.
Published online August 22, 2006.
Effect of CO₂ Welding Conditions on Property of Strength in Welded Joint of SPC Steel
JunHee Song, JunYong Choi, JaeKyoo Lim


Correspondence:   Published online August 22, 2006
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 CO₂ 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 ㎜ thick steel plate. Under this condition it could be taken the highest tensile strength and fatigue strength, and a good bead appearance.
Keywords: CO₂ arc welding;Tensile strength;Fatigue strength
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