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TECHNICAL PAPERS

An Approach for Modeling Sheet Metal Forming for Process Controller Design

[+] Author and Article Information
C.-W. Hsu, A. G. Ulsoy

Department of Mechanical Engineering and Applied Mechanics, The University of Michigan, Ann Arbor, MI 48109-2125

M. Y. Demeri

Ford Research Laboratories, Ford Motor Company, Dearborn, MI 48121

J. Manuf. Sci. Eng 122(4), 717-724 (Oct 01, 1999) (8 pages) doi:10.1115/1.1286815 History: Received July 01, 1998; Revised October 01, 1999
Copyright © 2000 by ASME
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References

Figures

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Schematic of a stamping process
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Process control of sheet metal forming
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Block diagram of the sheet metal forming model
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Schematic response of Fp to Fb with a step change
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Tooling for u-channel forming
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Experimental blank holder force trajectories
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Experimental punch force trajectories for constant blank holder force
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Resultant model parameters, α and τ
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Experimental and predicted punch force trajectories for variable blank holder force with a step change
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Experimental and predicted punch force trajectories for continuously variable blank holder force
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Development of friction in drawing bare steel with neat mineral oil 28. The abscissa represents draw length.

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