Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Resistance Spot Weldability of Low Density Lightweight Steel according to Electrode Shape

전극 형상에 따른 저비중 경량강판의 저항 점 용접 특성

  • Hwang, Insung (Joining R&D Group, Korea Institute of Industrial Technology) ;
  • Yoon, Hyunsang (Dept. of Mechanical Engineering, Inha University) ;
  • Kim, Dongcheol (Joining R&D Group, Korea Institute of Industrial Technology) ;
  • Kang, Munjin (Joining R&D Group, Korea Institute of Industrial Technology) ;
  • Kim, Jae Do (Dept. of Mechanical Engineering, Inha University) ;
  • Kim, Young-Min (Joining R&D Group, Korea Institute of Industrial Technology)
  • 황인성 (한국생산기술연구원 용접접합그룹) ;
  • 윤현상 (인하대학교 기계공학과) ;
  • 김동철 (한국생산기술연구원 용접접합그룹) ;
  • 강문진 (한국생산기술연구원 용접접합그룹) ;
  • 김재도 (인하대학교 기계공학과) ;
  • 김영민 (한국생산기술연구원 용접접합그룹)
  • Received : 2016.09.29
  • Accepted : 2017.01.31
  • Published : 2017.04.30
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Abstract

In this study, resistance spot weldability of lightweight steel with high Al contents was evaluated using various electrode shapes. The six types of electrode shape were prepared with different electrode face diameter and radius. The tensile shear tests were carried out to investigate the failure behaviors. Also, the nugget size and hardness were measured and compared with various electrode shapes. The experimental results show that the acceptable weld current region for low density lightweight steel could be obtained with 10mm electrode face diameter and 76mm electrode face radius.

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References

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