Evaluation of Critical Interfacial Friction in Cross Wedge Rolling

[+] Author and Article Information
Michael R. Lovell

University of Pittsburgh, Pittsburgh, PA 15261

J. Tribol 123(2), 424-429 (May 12, 2000) (6 pages) doi:10.1115/1.1308016 History: Received February 02, 2000; Revised May 12, 2000
Copyright © 2001 by ASME
Topics: Friction , Wedges , Disks , Failure
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Scheme of cross wedge rolling of a stepped shaft
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Tooling configurations of CWR machines
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Failed specimens due to excessive interfacial slip
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Development of the critical rolling condition
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Friction measuring system
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Wear track on workpiece surface
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Friction coefficient vs shear factor curves
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CWR process simulation (μ=0.125)
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CWR process simulation (μ=0.1)
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Deformed workpiece specimen




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