Effective Models for Prediction of Springback In Flanging

[+] Author and Article Information
Nan Song, Dong Qian, Jian Cao, Wing Kam Liu

Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208

Shaofan Li

Department of Civil and Environmental Engineering, SEMM Group, University of California, Berkeley, CA 94720

J. Eng. Mater. Technol 123(4), 456-461 (Jul 25, 2000) (6 pages) doi:10.1115/1.1395019 History: Received July 25, 2000
Copyright © 2001 by ASME
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Schematics of flanging processes
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Schematic of flange operation
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Illustration of boundary conditions in the analytical model
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Profile of det{M(x)} on a concave region
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Contact between a slave node and a surface
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Springback angle versus gap distance for 20 mm flange length
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(a-b) Comparison of Lc by numerical and analytical method (a) gap=1.2 mm; (b) gap=2.0 mm
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Angle comparison: simulation results versus experimental data. Different flange lengths and gaps are chosen (L11,g2.0 means: flange length is 11 mm and gap is 2.0 mm).



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