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RESEARCH PAPERS: Reliability, Stress Analysis, and Failure Prevention

A New Model of Local Elastic Deflections in Grinding

[+] Author and Article Information
D. P. Saini

Department of Mechanical Engineering, University of Western Australia, Nedlands, Western Australia, 6009

J. Vib., Acoust., Stress, and Reliab 106(1), 154-163 (Jan 01, 1984) (10 pages) doi:10.1115/1.3269144 History: Received March 01, 1981; Online November 23, 2009

Abstract

Mathematical models describing the deflection behavior of the wheel-work contact presented so far are based on the assumption that contact deflections are a direct function of the normal force on the wheel or the grains during grinding. This paper presents experimental results showing the evidence of a new mechanism of contact deflections due to the rotation of grain as a result of the tangential force component. In this perspective, a new model which considers the deflections due to both the normal and the tangential force is proposed and developed with the assumption of elasto-plastic deformation of the workpiece material around the grain during cutting. The model is shown to be consistent with experimental deflections obtained from single grain cutting on mild steel and EN25 steel specimens.

Copyright © 1984 by ASME
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