지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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The flange hub is a main component in an automotive steering system. In general, the flange hub are fabricated by mechanical machining, which is a process where material waste is inevitable. It is well-known that a net-shape cold forging cannot only reduce material waste but can also improve the mechanical strength of the final product. Thus, a forging process design was conducted for production of a flange hub. Significant spring-back occurs around the flange due to its small thickness in conjunction with the residual stresses after forging. In order to achieve the required dimensional accuracy, a process design with appropriate spring-back control is needed. In this study, a modification of the forging die was designed based on FE analysis with the purpose of spring-back compensation. Four kinds of different die designs were evaluated and the optimum design has two times less spring-back than the initial design. The compensation angle of the optimum design is 0.5 degrees. The results have been experimentally confirmed by cold forging of a flange hub and comparing the amount of spring-back between the actual component and the FE analysis.
목차
Abstract
1. 서론
2. 성형 해석 조건
3. 초기 성형해석 결과
4. 스프링백을 고려한 금형설계 조건
5. 스프링백 고려한 금형설계 해석결과
6. 성형 실험 결과
7. 결론
참고문헌
참고문헌 (8)
참고문헌 신청
1. [학술지(정기간행물)] - W. Gan / 2004 / Die Design Method for Sheet Springback / Int. J. Mech. Sci 46 (7) : 1097 ~ 1113
2. [학술지(정기간행물)] - C. C. Chu / 1986 / Elastic-plastic Spring-back of Sheet Metals Subjected to Complex Plane Strain Bending Histories / Int. J. Solids Struct 22 (10) : 1071 ~ 1081
3. [학술지(정기간행물)] - M. Sunseri / 1996 / Accommodation of Spring-back Error in Channel Forming Using Active Binder Force Control: Numerical Simulations and Experiments / J. Eng. Mater. Technol 118 (3) : 426 ~ 435
5. [학술지(정기간행물)] - P. Chen / 2007 / Simulation of Springback Variation in Forming of Advanced High Strength Steels / J. Mater. Process. Technol 190 (1) : 189 ~ 198
6. [학술지(정기간행물)] - D. Y. Yang / 1999 / Springback Analysis in Sheet Metal Stamping Processes and Industrial Applications / Trans. Mater. Process 8 (1) : 22 ~ 28
2. [학술지(정기간행물)] - C. C. Chu / 1986 / Elastic-plastic Spring-back of Sheet Metals Subjected to Complex Plane Strain Bending Histories / Int. J. Solids Struct 22 (10) : 1071 ~ 1081
3. [학술지(정기간행물)] - M. Sunseri / 1996 / Accommodation of Spring-back Error in Channel Forming Using Active Binder Force Control: Numerical Simulations and Experiments / J. Eng. Mater. Technol 118 (3) : 426 ~ 435
5. [학술지(정기간행물)] - P. Chen / 2007 / Simulation of Springback Variation in Forming of Advanced High Strength Steels / J. Mater. Process. Technol 190 (1) : 189 ~ 198
6. [학술지(정기간행물)] - D. Y. Yang / 1999 / Springback Analysis in Sheet Metal Stamping Processes and Industrial Applications / Trans. Mater. Process 8 (1) : 22 ~ 28
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