Proceedings of the KSME Conference (대한기계학회:학술대회논문집)

The Korean Society of Mechanical Engineers (대한기계학회)
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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

  • 김회현 (전북대학교 정밀기계공학과 대학원) ;
  • 김성수 (전북대학교 정밀기계공학과 대학원) ;
  • 백승세 (전북대학교 정밀기계공학과 대학원) ;
  • 권일현 (전북대학교 정밀기계공학과) ;
  • 양성모 (전북대학교 정밀기계공학과) ;
  • 유효선 (전북대학교 정밀기계공학과)
  • Published : 2004.11.03
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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.

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