박판금속성형의 초기 블랭크 최적설계를 위한 삼차원 다단계 역해석Three dimensional multi-step inverse analysis for optimum design of initial blank in sheet metal forming

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Values of process parameters in sheet metal forming can be estimated by various one-step inverse methods. One-step inverse methods based on deformation theory, however, cause some amount of error. The amount of error is generally increased as the deformation path becomes more complex. As a remedy, a new three dimensional multi-step inverse method is introduced for optimum design of blank shapes and strain distributions from desired final shapes. The approach extends a one-step inverse method to a multi-step inverse method in order to reduce the amount of error. The algorithm developed is applied to square cup drawing to confirm its validity by demonstrating reasonably accurate numerical results. Rapid calculation with this algorithm enables easy determination of an initial blank of sheet metal forming.
Publisher
대한기계학회
Issue Date
1997-01
Language
Korean
Citation

대한기계학회논문집 A, v.21, no.12, pp.2055 - 2067

ISSN
1226-4873
URI
http://hdl.handle.net/10203/15541
Appears in Collection
ME-Journal Papers(저널논문)
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