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RESEARCH PAPERS

The Mechanism of Material Removal in the Erosive Cutting of Brittle Materials

[+] Author and Article Information
G. L. Sheldon

Washington State University, Pullman, Wash.

I. Finnie

University of California, Berkeley, Calif.

J. Eng. Ind 88(4), 393-399 (Nov 01, 1966) (7 pages) doi:10.1115/1.3672667 History: Received July 09, 1965; Online December 08, 2011

Abstract

An analysis is presented for the erosive cutting of a brittle material by the normal impact of a stream of solid particles. The volume of material removed by a given number of particles is predicted to be:

W = krf1(m)Uf2(m)
In this expression, k is a quantity involving material constants, r is the average radius, and U the velocity of the impacting particles. The exponents f1 (m) and f2 (m) are prescribed functions of m, the flaw parameter of the Weibull fracture strength distribution. Tests on a variety of brittle materials, using both angular silicon carbide particles and spherical steel shot, show the predictions of the analysis to be applicable over a wide range of particle sizes and velocities.

Copyright © 1966 by ASME
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