Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Study on the Friction Characteristics of Various Bead Materials in Drawbead Forming of Cold Rolled Steels for Automotive Parts

자동차용 냉간압연재의 드로우비드 성형시 비드 재질별 마찰특성에 관한 연구

  • Lee D. H. (Department of Mechanical & Precision Engineering, Pusan National University) ;
  • Kim W. T. (Department of Mechanical & Precision Engineering, Pusan National University) ;
  • Moon Y. H. (Department of Mechanical & Precision Engineering, Pusan National University)
  • 이동활 (정밀기계공학과, 부산대학교) ;
  • 김원태 (정밀기계공학과, 부산대학교) ;
  • 문영훈 (정밀기계공학과, 부산대학교)
  • Published : 2004.08.01
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Abstract

The drawbead is one of the most important factors in sheet metal forming for automotive parts. So clarifying the friction characteristics between sheets and drawbead is essential to improve the formability of sheet metal. Therefore in this study, drawbead friction test was performed at various bead materials(FC300, HC891, FCD550, HD700, HK600, HK700, SKD11) and surface treatment of beads(Base, induction hardening, Cr plating, ion nitriding, Toyoda diffusion process, TiCN, TiN, CrN). Circular shape bead has been used for the test. The results show that friction and drawing characteristics were mainly influenced by surface treatment.

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