Proceedings of the KSME Conference (대한기계학회:학술대회논문집)
- 2004.11a
- /
- Pages.314-318
- /
- 2004
An Evaluation of the Weldability Characteristics on the 4 Lap Spot Welded Joint of Structural Steel Sheets in Automobile
자동차용 강판의 4겹 다층 점용접물의 용접특성 평가
Abstract
This research is conducted to investigate weldability characteristics with various welding conditions on the 4 lap spot welded joint of structural steel sheets in automobile. The relationship between the tensile-shear strength and the indentation depth has been investigated to evaluate the weldability and the optimum welding conditions. The welding current and the welding time have a greatly affect to the tensile-shear strength compared to the electrode force. It was found that the indentation depth has a relatively close relationship with the expulsion occurrence. The optimum welding conditions were proposed for the 4 lap spot welded joint.
Keywords