Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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An Experiment Study for Hardness Characteristic of Weldment according to Welding Heat-Input of Vertical GMA Welding Process

수직 GMA 용접공정 입열량에 따른 용접부 경도특성에 대한 실험적 연구

  • Park, Min-Ho (Department of Machanical Engineering, Mokpo University) ;
  • Lee, Jong-Pyo (Department of Machanical Engineering, Mokpo University) ;
  • Jin, Byeong-Ju (Department of Machanical Engineering, Mokpo University) ;
  • Kim, In-Ju (Green mold Technology Center, Korea Institute of Industrial Technology) ;
  • Kim, Ji-Sun (Green mold Technology Center, Korea Institute of Industrial Technology) ;
  • Kim, Ill-Soo (Department of Machanical Engineering, Mokpo University)
  • 박민호 (목포대학교 기계공학과) ;
  • 이종표 (목포대학교 기계공학과) ;
  • 진병주 (목포대학교 기계공학과) ;
  • 김인주 (한국생산기술연구원 그린몰드기술센터) ;
  • 김지선 (한국생산기술연구원 그린몰드기술센터) ;
  • 김일수 (목포대학교 기계공학과)
  • Received : 2016.08.23
  • Accepted : 2017.01.04
  • Published : 2017.04.30
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Abstract

The GMA welding process involves large number of interdependent variables which may affect product quality, productivity and cost effectiveness. The relationships between process parameters for a vertical weldment and mechanical properties are complex because a number of process parameters are involved. To make the vertical-position welding, a method that predicts bead geometry and accomplishes the desired mechanical properties of the weldment should be developed. In addition, a reliable welding process and conditions must be implemented to reduce weld structure failure. In this study, the welding process analysis of investigates the interaction between the heat input and welding parameter(Welding current, Arc voltage, Welding speed) for predicting the weldment hardness.

Keywords

References

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