The Influence of Lubricant Film Thickness on Friction Coefficients During Slow Speed Deep Drawing Operations-Reference-Cited by-同舟云学术

The Influence of Lubricant Film Thickness on Friction Coefficients During Slow Speed Deep Drawing Operations

Published:2002-09-24 Issue:4 Volume:124 Page:846-851
ISSN:0742-4787
Container-title:Journal of Tribology
language:en
Short-container-title:

Author:

Gilmour K. R.¹,Paul S.¹,Leacock A. G.¹

Affiliation:

1. School of Electrical and Mechanical Engineering, Faculty of Engineering, University of Ulster, Jordanstown, Northern Ireland

Abstract

During some deep drawing operations liquid lubricants are used under the blankholder to reduce friction coefficients. Under the clamping action of the blankholder, lubricants will be squeezed out resulting in a changing film thickness after the initial application of the blankholder load. A relationship between kinetic friction coefficient values and the loading duration of the blankholder can be observed from analysis of results recorded during simulative testing. By using a numerical model to combine empirical measurements, friction coefficients during boundary lubrication, lubricant film thickness with sheet surface topography data, it can be shown that the coefficient of friction can reliably be predicted for a given loading duration.

Publisher

ASME International

Subject

Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering,Mechanics of Materials

Link

http://asmedigitalcollection.asme.org/tribology/article-pdf/124/4/846/5662619/846_1.pdf

Reference10 articles.

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2. Emmens, W. C., 1988, “The Influence of Surface Roughness on Friction,” Proc. 15th Biennial I.D.D.R.G. Congress, Detroit, Michigan, May 16–18, pp. 63–70.

3. Schipper, D. J., 1988, “Transitions in the Lubrication of Concentrated Contact,” Ph.D. thesis, University of Twente.

4. Hsu, T. C. , 1994, “Refined Models for Hydrodynamic Lubrication in Axisymmetric Stretch Forming,” ASME J. Tribol., 116, pp. 101–109.

5. Mahdavian, S. M., and Shao, Z. M., 1993, “Isoviscous Hydrodynamic Lubrication of Deep Drawing and Its Comparison with Experiment,” ASME J. Tribol., 115, pp. 111–118.

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