Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Analysis of Residual Stress on Dissimilar Butt Joint by TIG Assisted Hybrid Friction Stir Welding

TIG-FSW 하이브리드 용접을 이용한 이종재 맞대기 용접부의 잔류응력 해석

  • Bang, Hee-Seon (Dept. of Naval Architechture & Ocean Engineering, Chosun University) ;
  • Ro, Chan-Seoung (Dept. of Naval Architechture & Mechanics, Chosun College of Science & Tech.) ;
  • Bijoy, M.S. (Maritime Technology Research Team, Korean Register(KR)) ;
  • Bang, Han-Sur (Dept. of Naval Architechture & Ocean Engineering, Chosun University) ;
  • Lee, Yoon-Ki (Dept. of Automobile, Chosun College of Science & Technology)
  • Received : 2011.11.09
  • Accepted : 2012.04.30
  • Published : 2012.04.30
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Abstract

This paper aimed to study and understand the mechanical phenomena of thermal elasto-plastic behavior on the dissimilar butt joint (Al 6061-T6 and STS304) by TIG assisted Friction Stir Welding. Heat conduction and residual stress analysis is carried out using in-house solver. Two-dimensional results of the heat distribution and residual stresses in dissimilar joint for particular tool geometry and material properties are presented. The predicted stress along longitudinal direction in Al 6061-T6 and STS304 are approximately between 12-15% of their respective yield strengths. A comparison is made between experimentally measured and numerically predicted equivalent residual stress values.

Keywords

References

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