초소성재료의 펀치성형에 관한 유한요소해석Finite element analysis of Punch forming of superplastic meaterials

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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 thickness of a deformed sheet more accurately than blow forming. The finite 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 thickness in a blank sheet affects the punch speed and the final distribution of the thickness in a product. The analysis proposes that a ring-typed thickness controller is very effective in controlling the thickness of a deformed sheet appropriately.
Publisher
대한기계학회
Issue Date
1996-01
Language
Korean
Citation

대한기계학회논문집 A, v.20, no.1, pp.440 - 449

ISSN
1226-4873
URI
http://hdl.handle.net/10203/12098
Appears in Collection
ME-Journal Papers(저널논문)
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