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RESEARCH PAPERS

Thermal Analysis of the Wear of Single Abrasive Grains

[+] Author and Article Information
R. F. Scrutton

Mechanical Engineering Department, University of Waterloo, Waterloo, Ontario, Canada

G. K. Lal

Mechanical Engineering Department, Carnegie-Mellon University, Pittsburgh, Pa.

J. Eng. Ind 96(4), 1245-1252 (Nov 01, 1974) (8 pages) doi:10.1115/1.3438502 History: Received August 01, 1973; Online July 15, 2010

Abstract

It is shown that the wear of single abrasive grains in a simulated grinding operation (over-cut fly milling) is governed by a thermally activated mechanism. The model adopted in this theoretical treatment assumes that most of the energy expended during grinding enters the workpiece via adiabatic plastic flow. The accompanying rise in temperature at the grain-workpiece interface decreases the shear flow stress of the softer metal. This permits a greater adhesive wear rate. The predictions of the theory agree with the results of extensive experimental data.

Copyright © 1974 by ASME
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