Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)
- 2009.05a
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- Pages.401-404
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- 2009
Joint characteristics of advanced high strength steel and A15052 alloy in the clinching process
초고장력강과 알루미늄 5052 소재의 클린칭 접합특성
- Lee, C.J. ;
- Kim, J.Y. ;
- Lee, S.K. ;
- Ko, D.C. ;
- Schafer, H. (Fraunhofer IFAM) ;
- Kim, B.M.
- 이찬주 (부산대학교 정밀기계공학과) ;
- 김재영 (부산대학교 정밀기계공학과) ;
- 이상곤 (부산대-IFAM 국제공동연구소) ;
- 고대철 (부산대 ILIC) ;
- ;
- 김병민 (부산대 기계공학부)
- Published : 2009.05.07
Abstract
The purpose of this study is investigating the joint characteristics of advanced high strength steel DP780 and Al5052 alloy sheet in the clinching process. It is difficult to join the advanced high strength steel with light-weight materials like aluminum alloy, because of low formability of DP780. The defects of clinching joint such as necking of the upper sheet, cracks of the lower sheet and no interlocking were occurred by different ductility between advanced high strength steel and aluminum alloy. The clinching conditions should be optimized to interlock without any defects. In this study, the effect of process parameters of clinching process on joinability of advanced high strength steel with Al5052 alloy was investigated by using FE-analysis. From the result of FE-analysis, the clearance between clinching punch and die, die depth and the shape of die cavity mainly affected the joinability of advanced high strength steel with Al5052 alloy.