Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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Process and Strength Evaluation of Mechanical Press Joining

기계적 프레스 접합의 공정 및 강도 평가

  • Lee, Sang-Hoon (Department of Automotive Engineering, Seoul National University of Science and Technology) ;
  • Kim, Ho-Kyung (Department of Automotive Engineering, Seoul National University of Science and Technology)
  • 이상훈 (서울과학기술대학교 자동차공학과) ;
  • 김호경 (서울과학기술대학교 자동차공학과)
  • Received : 2009.08.26
  • Accepted : 2011.06.22
  • Published : 2011.08.31
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Abstract

New methods for joining sheet of metal are being sought. One of the most promising methods is MPJ (mechanical press joining). It has been used in thin metal work because of its simple process and relative advantages over other methods, as it requires no fasteners such as bolts or rivets, consumes less energy than welding, and produces less ecological problems than adhesive methods. In this study, the joining process and static behavior of single overlap joints has been investigated. During fixed die type joining process for SPCC plates, the optimal applied punching force was found. The maximum tensile-shear strength of the specimen produced at the optimal punching force was 1.75 kN. The FEM analysis result on the tensile-shear specimen showed the maximum von-Mises stress of 373 MPa under the applied load of 1.7 kN, which is very close to the maximum tensile strength of the SPCC sheet(= 382 MPa). This suggests that the FEM analysis is capable of predicting the maximum tensile load of the joint.

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References

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