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Genesis of workpiece roughness generated in surface grinding and polishing of metals

Venkatesh, K and Bobji, MS and Gargi, R and Biswas, SK (1999) Genesis of workpiece roughness generated in surface grinding and polishing of metals. In: Wear, 225-22 (1). pp. 215-226.

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Abstract

Assuming the grinding wheel surface to be fractal in nature, the maximum envelope profile of the wheel and contact deflections are estimated over a range of length scales. This gives an estimate of the 'no wear' roughness of a surface ground metal. Four test materials, aluminum, copper, titanium, and steel are surface ground and their surface power spectra were estimated. The departure of this power spectra from the 'no wear' estimates is studied in terms of the traction-induced wear damage of the surfaces. The surface power spectra in grinding are influenced by hardness and the power is enhanced by wear damage. No such correlation with hardness was found for the polished surface, the roughness of which is insensitive to mechanical properties and appears to be influenced by microstructure and physical properties of the material.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science.
Keywords: Power spectra;Wear damage;Roughness.
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Date Deposited: 23 Jul 2009 03:42
Last Modified: 19 Sep 2010 05:28
URI: http://eprints.iisc.ernet.in/id/eprint/19545

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