Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)
- 2004.08a
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- Pages.91-97
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- 2004
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)
- Published : 2004.08.01
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.