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Finite Element Analysis of Punch Forming of Superplastic Materials
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 Title & Authors
Finite Element Analysis of Punch Forming of Superplastic Materials
Huh, Hoon; Lee, Ki-Seok; Choi, Yeong-Jun;
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 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.
 Keywords
Superplastic Material;Punch Forming;Optimal Punch Speed Control Method;Thickness Control Ring;
 Language
Korean
 Cited by
1.
유한요소법에 의한 Duplex 스테인레스 강의 초소성 해석,박지원;강석봉;황영진;이석순;

한국정밀공학회지, 2009. vol.26. 10, pp.89-96
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