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Journal of Applied Metalworking

, Volume 3, Issue 1, pp 3–11 | Cite as

Punch friction tests for sheet metal forming

  • X.-J. Wang
  • J. L. Duncan
  • M. L. Devenpeck
Article

Abstract

A previously described tensile strip test which simulates the stretching of sheet over a punch corner radius in a typical draw die was used to compare frictional effects in different sheet materials. Various grades of steel including galvanized samples were tested as well as soft and age-hardening aluminum alloy sheets. The measured friction coefficients varied over a wide range and the experiments illustrate how the straining process over the punch is influenced by both the stress-strain curve of the sheet and its friction characteristics.

Keywords

Friction Coefficient Friction Characteristic Apply Metalworking Sheet Metal Form Wall Strain 
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References

  1. 1.
    H. Nine:Mechanics of Sheet Metal Forming, D. P. Kristinen and N.M. Wang, eds., Plenum Press, New York, NY, 1978, p. 179.Google Scholar
  2. 2.
    J. L. Duncan, B. S. Shabel and J. Gerbase Filho: “A Tensile Strip Test for Evaluating Friction in Sheet Metal Forming,”SAE Technical Paper No. 780391, 1978.Google Scholar

Copyright information

© American Society for Metals 1983

Authors and Affiliations

  • X.-J. Wang
    • 1
  • J. L. Duncan
    • 2
  • M. L. Devenpeck
    • 3
  1. 1.Beijing University of Iron and Steel TechnologyBeijingChina
  2. 2.Department of Mechanical EngineeringMcMaster UniversityHamiltonCanada
  3. 3.U.S. Steel Research LaboratoryMonroeville

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