The Role of Grain Tip Radius in Fine Grinding

[+] Author and Article Information
G. K. Lal

Mechanical Engineering Department, Indian Institute of Technology, Kanpur, U.P., India

M. C. Shaw

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

J. Eng. Ind 97(3), 1119-1125 (Aug 01, 1975) (7 pages) doi:10.1115/1.3438664 History: Received July 17, 1974; Online July 15, 2010


The scratches produced by single abrasive grains in overcut fly milling show that the transverse shape of a grain is closely approximated by an arc of a circle. This radius of curvature is found to be independent of grain type and grinding conditions but varies with the grain size. The equation for undeformed chip thickness for surface grinding is rederived in terms of this radius. The important role that the transverse curvature of the grain plays relative to surface finish is also discussed.

Copyright © 1975 by ASME
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