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Design of Helical Self-Piercing Rivet for Joining Aluminum Alloy and High-Strength Steel Sheets

알루미늄 합금과 고장력 강판 접합을 위한 헬리컬 SPR의 설계

  • Kim, W.Y. (Dept. of Precision Mechanical Engineering, Chungbuk Nat'l Univ.) ;
  • Kim, D.B. (Dept. of Precision Mechanical Engineering, Chungbuk Nat'l Univ.) ;
  • Park, J.G. (Dept. of Precision Mechanical Engineering, Chungbuk Nat'l Univ.) ;
  • Kim, D.H. (Dept. of Precision Mechanical Engineering, Chungbuk Nat'l Univ.) ;
  • Kim, K.H. (Dept. of Precision Mechanical Engineering, Chungbuk Nat'l Univ.) ;
  • Lee, I.H. (Dept. of Mechanical Engineering, Chungbuk Nat'l Univ.) ;
  • Cho, H.Y. (Dept. of Mechanical Engineering, Chungbuk Nat'l Univ.)
  • 김원영 (충북대학교 정밀기계공학과) ;
  • 김동범 (충북대학교 정밀기계공학과) ;
  • 박진근 (충북대학교 정밀기계공학과) ;
  • 김도훈 (충북대학교 정밀기계공학과) ;
  • 김기호 (충북대학교 정밀기계공학과) ;
  • 이인환 (충북대학교 기계공학부) ;
  • 조해용 (충북대학교 기계공학부)
  • Received : 2014.02.26
  • Accepted : 2014.05.23
  • Published : 2014.07.01

Abstract

A self-piercing rivet (SPR) is a mechanical component for joining dissimilar material sheets such as those of aluminum alloy and steel. Unlike conventional rivets, the SPR directly pierces sheets without the need for drilling them beforehand. However, the regular SPR can undergo buckling when it pierces a high-strength steel sheet, warranting the design of a helical SPR. In this study, the joining and forging processes using the helical SPR were simulated using the commercial FEM code, DEFORM-3D. High-tensile-strength steel sheets of different strengths were joined with aluminum alloy sheets using the designed helical SPR. The simulation results were found to agree with the experimental results, validating the optimal design of a helical SPR that can pierce high-strength steel sheets.

Keywords

Self-Piercing Rivet;Dissimilar Materials;Finite Element Method;Forging Process

Acknowledgement

Supported by : 충북대학교

References

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