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TECHNICAL PAPERS

Optimization Design of Drawbead in Drawing Tools of Autobody Cover Panel

[+] Author and Article Information
Gang Liu, Zhongqin Lin, Youxia Bao

School of Mechanical Engineering, Shanghai Jiaotong University, P.R. China

J. Eng. Mater. Technol 124(2), 278-285 (Mar 26, 2002) (8 pages) doi:10.1115/1.1448523 History: Received March 19, 2001; Revised November 15, 2001; Online March 26, 2002
Copyright © 2002 by ASME
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References

Figures

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Drawing part for the joined panel
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Plot of thickness distribution
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Die include equivalent drawbead. (a) Results of grid method; (b) History of the improved simplex and convergent point.
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Distribution of drawbead constrained force
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Forming limited diagram of joined panel after optimization
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Formability of joined panel
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Deformed mesh after drawing simulation
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Position of measuring thickness. (a) Thickness along section A-A; (b) Thickness along section B-B.
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Comparison of thickness between simulation and actual forming part
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FEM model for the joined panel
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Mesh of the joined panel after simulation
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Forming limited diagram
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Improved simplex optimization algorithm
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Comparison between calculation results of Weidemann model, the new model and Nine’s experimental results
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Comparison between calculation results of Weidemann model, the new model and Laukonis’s experimental results
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Optimization design concept of drawbead resistance force distribution
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Design concept of drawbead geometrical parameters
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Position of crucial elements

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