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RESEARCH PAPERS

An Analysis of the Drill Wandering Motion

[+] Author and Article Information
S. J. Lee, S. M. Wu

Mechanical Engineering Department, University of Wisconsin – Madison, Madison, Wisconsin 53706

K. F. Eman

Department of Mechanical Engineering, Northwestern University Technological Institute, Evanston, Illinois 60201

J. Eng. Ind 109(4), 297-305 (Nov 01, 1987) (9 pages) doi:10.1115/1.3187132 History: Received July 10, 1987; Online July 30, 2009

Abstract

An analytical model has been developed to investigate the drill wandering motion quantitatively. It has been shown mathematically why the resulting distorted polygon-shaped hole always has an odd number of sides during drill entry, and how the profile of the hole gradually becomes round with increasing hole depth. Drilling processes were simulated using this mathematical model and the results compared with experimental evidence. Subsequently, an experimental analysis on the influence of point geometry on drill wandering has been presented.

Copyright © 1987 by ASME
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