Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Study on a Residual Stress Reduce in Laser Welding Process using Ti6Al4V

티타늄 합금의 레이저 용접 공정 시 잔류 응력 저감 방안에 대한 연구

  • Lee, Wooram (Dept. of Mechanical and Automotive Engineering, International University of Korea) ;
  • Park, Taesung (Dept. of Mechanical & Automotive Engineering, Seoul National University of Science & Technology) ;
  • Park, Ikkeun (Dept. of Mechanical & Automotive Engineering, Seoul National University of Science & Technology)
  • 이우람 (한국국제대학교 기계자동차공학과) ;
  • 박태성 (서울과학기술대학교 기계.자동차공학과) ;
  • 박익근 (서울과학기술대학교 기계.자동차공학과)
  • Received : 2016.02.15
  • Accepted : 2016.08.08
  • Published : 2016.12.30
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Abstract

The experimental study has been performed through residual stress using the Ti6Al4V, investigate the effect of laser shock peening on laser welding process residual stress of Ti6Al4V welds in a reduce safety weld zone. This research evaluated the effects of shock waves from laser shock peening with a pulsed Nd:YAG laser on Ti6Al4V welding specimens, through the analysis of the residual stress of the specimens. The residual stress could be formed by the depth of 1 mm if the proposed method of reducing the residual stress is performed in the optimal condition. The welded structures and products during the production process increase the mechanical property of repeated stress, which could be expected to extend the fatigue life of the structure.

Keywords

References

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