Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
권호 표지

Deformation and Residual Stress of Automotive Frame by Welding

용접에 의한 자동차용 Frame의 변형과 잔류 응력 분석

  • Park, Tae-Won (CAE Team, Ssangyong Motor Co.) ;
  • Kim, Kee-Joo (Department of Automobile Engineering, Seojeong College) ;
  • Han, Chang-Pyung (Department of Automobile Engineering, Seojeong College) ;
  • Lee, Young-Suk (Department of Automobile Engineering, Daelim College) ;
  • Lim, Jong-Han (Department of Mechanical & Automotive Engineering, Kyungwon University)
  • Received : 2011.01.21
  • Accepted : 2011.04.21
  • Published : 2011.09.01
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Abstract

The frame for automotive assembly can be deformed and remained on the residual stress due to high temperature thermal attacks when in welding. The frame deformation can be made to problems when in assembly with body and the residual stress can affect the negative effect on durability performance of the automobile. In order to analyze the frame deformation, the simplified test frame which had the similar shape (form) of the real automotive frame was fabricated. The contactless optical 3D scanner was used for the shape difference measurement of the frame between before and after the welding. The FE-model of the test frame was composed and the heat transfer and thermal stress simulation were performed. The simulated results were compared with the measured results for the reference of the frame design. The deformation shape of the frame by simulation was in good agreement with that by the experimental measurement.

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References

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