해양환경안전학회지 (Journal of the Korean Society of Marine Environment & Safety)

  • 제21권2호
  • /
  • Pages.194-199
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  • 2015
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  • 1229-3431(pISSN)
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  • 2287-3341(eISSN)
해양환경안전학회 (The Korean Society of Marine Environment and safety)
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도그 피스 설치량에 따른 맞대기 용접 변형 연구

A Study on the Butt Welding Deformation Considering Dog-Piece Setting

  • Ryu, Hyun-Su (Daewoo Shipbuilding & Marine Engineering R&D Institute)
  • 투고 : 2015.02.25
  • 심사 : 2015.04.27
  • 발행 : 2015.04.30
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초록

본 연구에서는 도그 피스 설치량에 따른 용접 변형 실험을 수행하여 용접 변형 감소 효과를 정량적으로 평가하였고, 도그 피스 설치를 고려한 용접 변형 해석 방법을 제안하였다. 용접 변형 실험 결과, 도그 피스 설치량이 증가할수록 용접 변형이 감소하며 최대 74%의 변형 감소 효과가 있음을 확인하였다. 원판형 열속 모델을 사용한 열탄소성 유한요소 해석을 활용하여 도그 피스 설치를 고려한 용접 변형 해석 방법을 제안하고, 해석 결과와 실험 결과가 좋은 유사성을 보이고 있음을 확인하였다. 본 해석 방법은 현행 도그 피스 설치량에 대한 적정 여부를 평가하거나 도그 피스 사용량을 절감할 수 있는 설치 가이드를 마련하기 위한 해석적 툴로 활용될 수 있다.

In this study, experiments of welding deformation considering dog-pieces setting were performed to assess the effect of dog-pieces on welding deformations quantitatively and an analysis method of welding deformations considering dog-pieces was proposed. Experimental results show the relationship between welding deformations and dog-pieces setting quantitatively. The maximum reduction of welding deformation was measured as 74%. The proposed numerical analysis method to predict welding deformations is one of thermal elasto-plastic analyses using a circular heat flux and finite elements model and has been verified through experiments of welding deformation. The proposed analysis method is expected to be used in a variety of fields as an analysis tool to assess or establish guidelines for a proper use of dog-pieces.

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참고문헌

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  5. Noh, H. Y., K. J. Kim, R. S. Leem and H. K. Kim(2008), A Study on a Development of the Grinding Robot to Remove Welding-bid of Working Pieces, Special Issue of the Society of Naval Architects of Korea, pp. 136-143.
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  7. Shin, D. H., S. B. Shin and J. S. Lee(2007), A Study on the Prediction of Welding Distortion and Residual Stress for Channel I Butt SA Weldment Using FE Analysis, Journal of the Society of Naval Architects of Korea, Vol. 44, No. 6, pp. 598-604. https://doi.org/10.3744/SNAK.2007.44.6.598

피인용 문헌

  1. Numerical Analysis and Experiments of Butt Welding Deformations for Panel Block Assembly vol.10, pp.5, 2020, https://doi.org/10.3390/app10051669