한국소성가공학회:학술대회논문집 (Proceedings of the Korean Society for Technology of Plasticity Conference)
- 한국소성가공학회 2004년도 제5회 압연심포지엄 신 시장 개척을 위한 압연기술
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- Pages.137-144
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- 2004
자동차용 냉간압연재의 드로우비드 성형시 비드 형상별 마찰특성에 관한 연구
Study on the Friction Characteristics of Circular bead and rectangular bead in Drawbead Forming of Cold Rolled Steels for Automotive Parts
- Kim D. W. (Department of Mechanical & Precision Engineering, Pusan National University) ;
- Kim W. T. (Department of Mechanical & Precision Engineering, Pusan National University) ;
- Lee D. H. (Department of Mechanical & Precision Engineering, Pusan National University) ;
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Moon Y. H.
(Department of Mechanical & Precision Engineering, Pusan National University)
- 발행 : 2004.08.01
초록
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 circular shape bead and rectangular shape bead. The results show that the tendency of drawing force for rectangular bead is nearly similar with circular bead and the drawing force is nearly proportional to friction coefficient.