Experimental and Numerical Investigation on the Influence of Process Speed on the Blanking Process

[+] Author and Article Information
A. M. Goijaerts, L. E. Govaert, F. P. T. Baaijens

Materials Technology, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands

J. Manuf. Sci. Eng 124(2), 416-419 (Apr 29, 2002) (4 pages) doi:10.1115/1.1445152 History: Received March 01, 2000; Revised May 01, 2001; Online April 29, 2002
Copyright © 2002 by ASME
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Performance of constitutive model with the Bodner-Partom viscosity function using Z(ε̄p) according to Eq. (7). The markers represent the experimentally found stress-strain relations out of the tensile tests for different strain rates. The bold solid line represents the stress-strain relation of Eq. (6).
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A typical mesh produced by the adaptive automatic remeshing algorithm
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Comparison of experimental maximum blanking forces with numerical predictions using the compressible Leonov model with Bodner-Partom viscosity over a large range of punching velocities.
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Comparison for experimental punch displacements at fracture and numerical predictions using the criteria of Table 2 as a function of blanking velocities. The error bars represent twice the standard-deviations for the experiments (95 percent interval).




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