한국소성가공학회:학술대회논문집 (Proceedings of the Korean Society for Technology of Plasticity Conference)
- 한국소성가공학회 2003년도 제4회 박판성형 심포지엄
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- Pages.35-40
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- 2003
고강도 강판 성형 공정의 스프링백 제어
Springback Control in the Forming Processes for High-Strength Steel Sheets
- 양우열 (한양대학교 대학원) ;
- 이승열 (한양대학교 CPRC) ;
- 금영탁 (한양대학교 기계공학부) ;
- 황진영 (현대자동차 금속재료연구팀) ;
- 윤치상 (현대자동차 금속재료연구팀) ;
- 신철수 (현대자동차 금속재료연구팀) ;
- 조원석 (현대자동차 금속재료연구팀)
- Yang WooYul ;
- Lee SeungYeol ;
- Keum YoungTag ;
- Hwang JinYoung ;
- Yoon ChiSang ;
- Shin ChirlSoo ;
- Cho WonSuk
- 발행 : 2003.08.01
초록
In order to develope springback control technology for high-strength steel sheets, some studies have been conducted: dome stretching test, stepped s-rail forming and springback measurement, and optimally shaped initial blank design. First, to find out the formability of TRIP60, dome stretching test was performed. Next the stepped s-rail die, which was designed to form a channel type panel with large twist and wall curl, was manufactured and used to know the effect of controlling forming variables, such as blank holding force and flange amount on the springback. Furthermore, new measurement method of the springback was introduced to define wall curl and twist in geometrically complex panels. Finally, the optimally shaped initial blank was employed to verify one of the best ways to control the springback in channel type, high strength sheet panels.
키워드