Journal of the Korean Society of Mechanical Technology (한국기계기술학회지)

Korean Society of Mechanical Technology (한국기계기술학회)
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A Study on Clinching Characteristics for A6451 Aluminum and Galvanized Steels and the Application of Clinching Technology to Automotive Parts

A6451 알루미늄 및 용융아연도금강판의 클린칭 접합특성 및 접합기술의 차체 부품 적용 연구

  • Kwon, Eui-Pyo (Korea Institute of Industrial Technology, Carbon&Light Materials Application R&D Group) ;
  • Park, Hyun-kyung (Donghae Metal Co., Ltd, R&D Center)
  • Received : 2018.11.30
  • Accepted : 2018.12.21
  • Published : 2018.12.28
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Abstract

In this study, clinching characteristics of aluminum and galvanized steels were investigated for the application of clinching as a joining technique to aluminum wheelhouse assembly. A6451 aluminium alloy and galvanized steel sheets were joined by hybrid joining(clinching + adhesive bonding). Tensile-shear load and fracture mode of hybrid joints were investigated. Maximum tensile-shear load of hybrid joints was about six times higher than that of clinched joints without adhesive. Energy absorption values of hybrid joints were higher than those of clinched joints without adhesive as well as resistance spot welded steel joints. Developed aluminum wheelhouse assembly showed higher static stiffness than the existing steel parts. Aluminum wheelhouse inner panel unit was 44% lighter than the steel unit, and the final assembled aluminum wheelhouse was 14.6% lighter than the existing steel parts.

Keywords

Acknowledgement

Supported by : 중소벤처기업부

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