Abstract

Superplastic punch forming of sheets is simulated by a finite element method to obtain the optimal punch speed and the related deformed shapes. The punch forming has an advantage of guaranteeing the desired accuracy inside a product and controlling the thichness of a deformed sheet more accurately than blow forming. The finit element code developed is associated with the contact algorithm and the control algorithm of punch speed for the optimum forming. The simulation demonstrates that the variation of the thichness in a blank sheet affects the punch speed and the final distribution of the thichness in a product. The analysis proposes that a ring-typed thichness controller is very effective in controlling the thichness of a deformed sheet appropriately.

주제어

#초소성재료   #펀치성형   #최적펀치속도 제어기법 두께제어환  

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참고문헌 (16)

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이 논문을 인용한 문헌 (1)

1. Park, Ji-Won ; Kang, Seok-Bong ; Hwang, Yeong-Jin ; Lee, Seok-Soon 2009. "Superplstic Forming Analysis of Duplex Stainless Steel with Finite Element Method" 한국정밀공학회지 = Journal of the Korean Society of Precision Engineering, 26(10): 89~96  원문보기 상세보기