Effects of Built-Up Edge in Drilling

[+] Author and Article Information
A. G. Dolodarenko, I. Ham

Department of Industrial and Management Systems Engineering, The Pennsylvania State University, University Park, Pa.

J. Eng. Ind 98(1), 287-292 (Feb 01, 1976) (6 pages) doi:10.1115/1.3438834 History: Received July 09, 1975; Online July 15, 2010


Experimental tests were performed to study the effects of built-up edge in drilling four different work materials with a twist drill, at different cutting speeds and feeds. The tests were made dry to facilitate observation. Chip-flow angles, normal rake angles, and web angles with built-up edge were measured and correlated with inclination angles and effective rake angles. Comparison of the angles with and without built-up edge showed that the built-up edge significantly affects the basic mechanics of drilling.

Copyright © 1976 by ASME
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