An important mechanism reducing the lifetime of the deepdrawing tools is material transfer from the workpiece to the tool, resulting in the buildup of lumps on the tool surface. In this study, a lump growth model, based on transfer mechanisms observed in experiments, is developed. The development of the summit height distribution of the tool surface is calculated from the growth behavior of the individual lumps. Important parameters influencing material transfer are determined from the calculated summit height distributions. It follows that lump growth can be decreased and, under certain conditions prevented, by a higher (surface) hardness of the workpiece, a lower roughness of the tool surface, a lower nominal contact pressure, and a lower shear strength of the interface. These results are in general agreement with results obtained from experiments. Experimental results are presented in an accompanying paper (de Rooij and Schipper, 2000).
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July 2001
Technical Papers
Analysis of Material Transfer From a Soft Workpiece to a Hard Tool: Part I—Lump Growth Model
M. B. de Rooij, Assistant Professor,
e-mail: m.b.derooij@wb.utwente.nl
M. B. de Rooij, Assistant Professor
Department of Mechanical Engineering, Tribology Group, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
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D. J. Schipper
D. J. Schipper
Department of Mechanical Engineering, Tribology Group, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
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M. B. de Rooij, Assistant Professor
Department of Mechanical Engineering, Tribology Group, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
e-mail: m.b.derooij@wb.utwente.nl
D. J. Schipper
Department of Mechanical Engineering, Tribology Group, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
Contributed by the Tribology Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for presentation at the STLE/ASME Tribology Conference, Seattle, WA, October 1–4. Manuscript received by the Tribology Division Feb. 29, 2000; revised manuscript received June 29, 2000. Paper No. 2000-TRIB-21. Associate Editor: T. C. Ovaert.
J. Tribol. Jul 2001, 123(3): 469-473 (5 pages)
Published Online: June 29, 2000
Article history
Received:
February 29, 2000
Revised:
June 29, 2000
Citation
de Rooij, M. B., and Schipper, D. J. (June 29, 2000). "Analysis of Material Transfer From a Soft Workpiece to a Hard Tool: Part I—Lump Growth Model ." ASME. J. Tribol. July 2001; 123(3): 469–473. https://doi.org/10.1115/1.1308009
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