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TECHNICAL PAPERS

Three-Dimensional Elastic-Plastic Finite-Element Analysis of the Flattening of Wire Between Plain Rolls*

[+] Author and Article Information
H. Utsunomiya

Department of Materials Science and Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japane-mail: uts@mat.eng.osaka-u.ac.jp

P. Hartley

School of Manufacturing and Mechanical Engineering

I. Pillinger

School of Manufacturing and Mechanical Engineering, The University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK

J. Manuf. Sci. Eng 123(3), 397-404 (Jun 01, 2000) (8 pages) doi:10.1115/1.1365158 History: Received November 01, 1999; Revised June 01, 2000
Copyright © 2001 by ASME
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References

Pomp,  A., Höhle,  H., and Lueg,  W., 1938, “Die Breitung beim Flachwalzen von Runddraht aus Stahl,” Stahl Eisen, 58, pp. 937–943, in German.
Lueg,  W., and Treptow,  K. H., 1954, “Das Breiten beim Flachwalzen von Runddraht und die Bestimmung der Querschnittsform,” Stahl Eisen, 74, pp. 881–888, in German.
Kuroda,  M., Gokyu,  I., and Yamamori,  K., 1958, “A Study on the Flat Rolling of Round Wire,” J. Jpn. Inst. Met., , 22, pp. 576–580, in Japanese.
Pawelski,  O., 1958, “Betriebliche Erfahrungen beim Kaltwalzen von Flachdraht,” Stahl Eisen, 78, pp. 382–383, in German.
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Krieg,  R. D., and Krieg,  D. B., 1977, “Accuracies of Numerical Methods for the Elastic-Perfectly Plastic Model,” ASME J. Pressure Vessel Technol., 99, pp. 510–515.
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Rowe, G. W., Sturgess, C. E. N., Hartley, P., and Pillinger, I., 1991, Finite Element Plasticity and Metalforming Analysis, Cambridge University Press.
Kobayashi,  M., 1978a, “Influence of Rolling Conditions on Spreading in Flat Rolling of Round Wire,” J. Jpn. Soc. Technol. Plast., 19, pp. 630–637, in Japanese.
Hartley,  P., Sturgess,  C. E. N., and Rowe,  G. W., 1979, “Friction in Finite-Element Analyses of Metalforming Processes,” Int. J. Mech. Sci., 21, pp. 301–311.
Hartley, P., Sturgess, C. E. N., Liu, C., and Rowe, G. W., 1988, “Mechanics of Metal Flow in Cold Rolling,” CAD/CAM & FEM in Metalworking, S. K. Ghosh and A. Niku-Lari, eds., Pergamon, pp. 35–46.
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Chiou, J. M., Hall, F. R., Hartley, P., and Pillinger, I., 1995, “Elastic-Plastic Finite Element Modelling of Material Damage in Metal Forming,” Proc. 4th Int. Conf. Computational Plasticity, D. R. J. Owen and E. Onate, eds., pp. 1411–1422, Pineridge Press, Barcelona.
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Figures

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Initial-finite element meshes
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Interpretation of the Prandtl-Reuss flow rule for finite increments of stress
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Illustrations of the two return mapping algorithms
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Deformed finite-element meshes
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Variations of lateral spread as a function of increment size
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Deformed finite element meshes (m=0.2)
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Lateral spread as a function of reduction
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Variation of lateral spread as a function of reduction and friction
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Variation of elongation as a function of reduction and friction
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Elongation history at four points in the cross section (r=50 percent)
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Radius of curvature of free side surface as a function of reduction
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Distributions of generalized strain on cross section

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