Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Welding Distortion Analysis of a Laser Welded Thin Box Structure

얇은 박스형 용접구조물의 용접변형 해석

  • Kim, Choong-Gi (Dep. of Mechanical Eng., Graduate School of Yeungnam University) ;
  • Kim, Jae-Woong (School of Mechanical Engineering, Yeungnam University) ;
  • Kim, Kim-Chul (Research Institute of Industrial Science and Technology)
  • Published : 2007.10.30
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Abstract

Prediction and control of the thermal distortion is particularly important for the design and manufacture of welded thin metal structure. In this study, numerical computations are performed to analyze effect of structure section shape and weld line location on distortion. In addition, this study aims to develop a thermal elasto-plastic simulation using finite element method to predict distortion, with particular emphasis on bending deformation generated in outline welding of a thin box structure. From the numerical analysis, it was revealed that the section shape and weld line location play an important role on the welding distortion. Among 3 types of section shape design proposed in this study, the least deformation remained in the two path welded structure.

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References

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