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TECHNICAL PAPERS

Optimal Blank Design for the Drawings of Arbitrary Shapes by the Sensitivity Method

[+] Author and Article Information
H. B. Shim, K. C. Son

School of Mechanical Engineering, Yeungnam University, Gyongsan, Korea

J. Eng. Mater. Technol 123(4), 468-475 (Jul 24, 2000) (8 pages) doi:10.1115/1.1398082 History: Received July 24, 2000
Copyright © 2001 by ASME
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References

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Figures

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Movement of an outermost node
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Concept of sensitivity and contour error correction: (a) initial state; (b) final state
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Flow chart for optimal blank design
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Die geometry for trapezoidal cup deep drawing
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Blank shapes and deformed flange at the design stages: (a) initial design (ϕ130); (b) 2nd design; (c) 3rd design (optimal blank)
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Experimental results for the optimal blank (trapezoidal cup): (a) flange contour; (b) drawn specimen
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Die geometry for oil pan drawing
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Blank shapes and deformed flange at the design stages (oil pan): (a) initial design (ϕ130); (b) 2nd design; (c) 3rd design (optimal blank)
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Experimental results for the optimal blank (oil pan): (a) flange contour; (b) drawn specimen
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Die geometry for AUDI front door panel drawing
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Evolution of optimal blank design stages: (a) initial shape (Numisheet’99); (b) 2nd design; (c) 3rd design (optimal blank)
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Comparison of deformed shape for Numisheet ’99 benchmark: (a) Numisheet ’99 benchmark blank; (b) optimal blank

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