Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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A Study on Numerical Thermo-Mechanical Analysis for Aluminum 6061 Friction Stir Welding

전산 열.구조해석에 의한 알루미늄 6061 마찰교반용접 특성 연구

  • Park, Chan-Woo (Department of Aerospace and System Engineering, Gyeongsang Univ.) ;
  • Paeng, Jin-Gi (Department of Aerospace and System Engineering, Gyeongsang Univ.) ;
  • Ok, Ju-Seon (Aerospace Center, Gyeongnam TP)
  • 박찬우 (경상대학교 항공우주시스템공학과) ;
  • 팽진기 (경상대학교 항공우주시스템공학과) ;
  • 옥주선 (경남테크노파크 항공센터)
  • Received : 2011.07.11
  • Accepted : 2012.02.15
  • Published : 2012.06.01
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Abstract

A fully coupled thermo-mechanical model is adopted to study the temperature distribution and the material deformation in friction stir welding(FSW) process. Rotational speed is most important parameters in this research. Three dimension results under different process parameters were presented. Result indicate that the maximum temperature is lower than the melting point of the welding material. The higher temperature gradient occurs in the leading side of the workpiece. The maximum temperature can be increased with increasing the tool angular velocity, rpm in the current numerical modeling. In this research ABAQUS Ver.6.7 is to analyze a fully coupled thermo-mechanical model. ALE(Arbitrary Lagrangian-Eulerian) finite element formulation is used for the large deformation in FSW process and using the Mass scaling for the analysis time efficiency.

Keywords

References

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