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TECHNICAL PAPERS

Assessment of Corner Failure Depths in the Deep Drawing of 3D Panels Using Simplified 2D Numerical and Analytical Models

[+] Author and Article Information
Hong Yao, Jian Cao

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

J. Manuf. Sci. Eng 123(2), 248-257 (Apr 01, 2000) (10 pages) doi:10.1115/1.1349553 History: Received September 01, 1999; Revised April 01, 2000
Copyright © 2001 by ASME
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References

Doege, E., 1985, “Prediction of Failure in Deep Drawing,” Proceedings of the 12th Automotive Materials Symposium.
Saran,  M. J., Keum,  Y. T., and Wagoner,  R. H., 1991, “Section Analysis with Irregular Tools and Arbitrary Draw-in Conditions for Numerical Simulation of Sheet Forming,” Int. J. Mech. Sci., 33, No. 11, pp. 893–909.
Brooks,  A., Jhita,  R., and Ni,  C. M., 1991, “Applications of a Two-Dimensional Metal Forming Analysis Tool to Production Stamping Problems,” SAE Trans., 100, Sect 5, pp. 751–758.
Walker, T., Kolodziejski, J., and Karima, M., 1992, “Using Axisymmetric Solutions to Estimate the Forming Severity of Three Dimensional Metal Stampings,” SAE Paper 920636, Autobody Stamping Applications and Analysis, SAE SP-897, pp. 161–172.
Wong, C., Wagoner, R. H., and Wenner, M. L., 1997, “Corner Design in Deep Drawn Rectangular Parts,” SAE Paper 970437, pp. 39–55.
Yao, H., Kinsey, B., and Cao, J., 1999, “A Simplified 2D Model in Predicting Failure in a Square Part,” SAE Technical Paper Series 1999-01-1317.
Yao,  H., Kinsey,  B., and Cao,  J., 2000, “Rapid Design of Corner Restraining Force in Deep Drawn Rectangular Parts,” Int. J. Mach. Tools Manuf., 40, pp. 113–131.
Makinouchi, A., Nakamachi, E., Onate, E., and Wagoner, R. H., 1993, “Numerical Simulation of 3-D Sheet Metal Forming Processes Verification of Simulation with Experiment,” Proceedings of the 2nd International Conference Numisheet’93.
Cao,  J., and Wang,  X., 1999, “An Analytical Model for Plate Wrinkling Under Tri-Axial Loading and Its Application,” Int. J. Mech. Sci., 42, No. 3, pp. 617–633.
Wang,  X., and Cao,  J., 2000, “On the Prediction of Side-Wall Wrinkling in Sheet Metal Forming Process,” Int. J. Mech. Sci., 42, No. 12, pp. 1105–1129.

Figures

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Tooling geometry for a quarter of a part with plan view angle equal to 90 deg
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Tooling geometry for a quarter of a part with plan view angle less than 90 deg
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Tooling geometry for a quarter of a part with plan view angle larger than 90 deg
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Illustrations of the side and corner stretch heights
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Illustration of the geometry and process of the base model
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Comparison of the calculated corner stretch heights to the simulation results
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Simplified analytical model for calculating the offset
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Comparison of failure heights predicted by using the analytical model to simulate results for the base model
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Comparison of the probability of errors in the failure height prediction
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Flow chart of the process parameter design using simplified analytical and numerical models

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