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The Influence of Surface Roughness on the Deforming Friction Behavior of Al-Mg Alloys

Published

Author(s)

Mark R. Stoudt

Abstract

The inhomogeneous morphology of the surface asperities generated during metal forming causes strain localization resulting in tearing during metal forming, and increasing friction between mating die surfaces. Much of the data in the literature do not account for the influences variations in metallurgical conditions in the material have on the friction behavior. A prototype apparatus has been developed to both simulate the friction behavior in the region of a drawbead, and to assess the relative influences of metallurgical variables and changes in the microstructural conditions that are produced under deforming loads. The results of this study demonstrate that measurement system is capable of distinguishing the coefficients of static and sliding friction from the test data, and that the wear scars are suitable for detailed analyses of the changes in the microstructure. Thus, the design generally meets the necessary criteria for the experimental technique and it is appropriate for further development.
Proceedings Title
Proceedings of the Aluminum Powder Metallurgy Conference 2002. See Notes
Conference Dates
February 1, 2002
Conference Title
Automotive Alloys and Aluminum Sheet and Plate Rolling and Finishing Technology; Aluminum 2002

Keywords

aluminum alloys, friction, metal forming, surface roughness

Citation

Stoudt, M. (2002), The Influence of Surface Roughness on the Deforming Friction Behavior of Al-Mg Alloys, Proceedings of the Aluminum Powder Metallurgy Conference 2002. See Notes (Accessed May 21, 2024)

Issues

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Created February 1, 2002, Updated February 19, 2017