Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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An Experimental Study on Optimizing for Tandem Gas Metal Arc Welding Process

탄뎀 가스메탈아크 용접공정의 최적화에 관한 실험적 연구

  • Lee, Jongpyo (Dept. of Mechanical Engineering, Mokpo National University) ;
  • Kim, Illsoo (Dept. of Mechanical Engineering, Mokpo National University) ;
  • Lee, Jihye (Dept. of Mechanical Engineering, Mokpo National University) ;
  • Park, Minho (Dept. of Mechanical Engineering, Mokpo National University) ;
  • Kim, Youngsoo (Dept. of Mechanical Engineering, Mokpo National University) ;
  • Park, Cheolkyun (Dept. of Mechanical Engineering, Mokpo National University)
  • 이종표 (목포대학교 공과대학 기계공학과) ;
  • 김일수 (목포대학교 공과대학 기계공학과) ;
  • 이지혜 (목포대학교 공과대학 기계공학과) ;
  • 박민호 (목포대학교 공과대학 기계공학과) ;
  • 김영수 (목포대학교 공과대학 기계공학과) ;
  • 박철균 (목포대학교 공과대학 기계공학과)
  • Received : 2013.09.03
  • Accepted : 2014.03.31
  • Published : 2014.04.30
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Abstract

To enhance productivity and provide high quality production material in a GMA welding process, weld quality, productivity and cost reduction affects the number of process variables. In addition, a reliable welding process and conditions must be implemented to reduce weld structure failure. In various industries the welding process mathematical model is not fully formulated for the process parameter and on the welding conditions, therefore only partial variables can be predicted. The research investigates the interaction between the welding parameters (welding speed, distance between electrodes, and flow rate of shielding gas) and bead geometry for predicting the weld bead geometry (bead width, bead height). Taguchi techniques are applied to bead shape to develope curve equation for predicting the optimized process parameters and quality characteristics by analyzing the S/N ratio. The experimental results and measured error is within the range of 10% presenting satisfactory accuracy. The curve equation was developed in such a way that you can predict the bead geometry of constructed machinery that can be used for making tandem welding process.

Keywords

References

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