Journal of Welding and Joining

  • 제35권1호
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  • Pages.68-73
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  • 2017
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  • 2466-2232(pISSN)
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  • 2466-2100(eISSN)
대한용접접합학회 (The Korean Welding and Joining Society)
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인코넬 713C 합금의 레이저 용접성 평가

Evaluation of the Laser Weldability of Inconel 713C alloy

  • 강민정 (한국생산기술연구원 용접접합그룹) ;
  • 김철희 (한국생산기술연구원 용접접합그룹) ;
  • 김영민 (한국생산기술연구원 용접접합그룹)
  • Kang, Minjung (Joining R&D Group, Korea Institute of Industrial Technology) ;
  • Kim, Cheolhee (Joining R&D Group, Korea Institute of Industrial Technology) ;
  • Kim, Young-Min (Joining R&D Group, Korea Institute of Industrial Technology)
  • 투고 : 2016.09.27
  • 심사 : 2016.11.08
  • 발행 : 2017.02.28
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초록

During welding of Ni based superalloy, hot cracking was usually happen in the fusion zone of a weld. In this study, the laser weldability of Inconel 713C alloy for the turbocharger wastegate valve (WGV) was evaluated with various welding conditions, such as laser power, welding speed, shielding gas. Welding conditions were optimized by bead-on-plate (BOP) and butt joint welding. For the evaluation of laser weldability, bead shapes and weld microstructures were investigated and tensile test was conducted. The fracture surfaces were investigated for the understanding the cause of the fracture.

키워드

참고문헌

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