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RESEARCH PAPERS

The Wheel Wear and Metal Removal Mechanisms in Vertical Spindle Abrasive Machining of Mild Steel

[+] Author and Article Information
C. Pollock

Norton Company, Worcester, Mass.

J. Eng. Ind 90(2), 365-369 (May 01, 1968) (5 pages) doi:10.1115/1.3604642 History: Received June 29, 1967; Online August 25, 2011

Abstract

The primary metal removal mechanisms in vertical spindle abrasive machining are chip removal by firmly bonded abrasive grains in the wheel matrix, and secondary removal by the reuse of loose abrasive between the wheel-work interface. As you increase the strength (go to harder grades) of segments, the secondary metal removal rate tends to remain constant. However, the metal removed by firmly bonded abrasive increases rapidly. Changing from an E to an F grade approximately doubles the primary metal removal rate. Segmental wheels sharpen themselves by two major mechanisms—primary and secondary wear. Primary wear is caused by the common mechanisms of attrition, grain fracture, and bond failure. The secondary mechanism is caused by loose abrasive and metal chips in the wheel-work interface.

Copyright © 1968 by ASME
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