Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Analysis of Welding Distortion for Laser Welded Sheet Metal Structures of Aluminum Alloy

레이저용접에 의한 알루미늄 박판구조물의 용접변형 해석

  • Kwon, Ki-Bo (Dept. of Mechanical Engineering, Graduate School of Yeungnam University) ;
  • Kim, Jae-Woong (School of Mechanical Engineering, Yeungnam University) ;
  • Kim, Cheol-Hee (Production Technology Center, Korea Institute of Industrial Technology)
  • 권기보 (영남대학교 대학원 기계공학과) ;
  • 김재웅 (영남대학교 공과대학 기계공학부) ;
  • 김철희 (한국생산기술연구원)
  • Published : 2009.06.30
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Abstract

In this study, welding distortion analysis is performed for various design of tube shape structures which are assembled with aluminum sheet metal. Aluminum 5052 plates of 1mm thickness are used to analyze. An efficient keyhole model, as a welding heat source, is used for the prediction of full penetration weld size and shape which is required for the thermal analysis. The thermal and mechanical material properties are considered as temperature dependent functions, due to the high temperature variations during the welding. The numerical model is calculated by using a commercial software and evaluated with the experiments. The calculation results could make a comparative study in the view of distortion for the various size and shape of structure.

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References

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