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TECHNICAL BRIEFS

The Correlation Between the Cutting Fluid Pressure Distribution and the Topography of Tool Wear in BTA Drilling

[+] Author and Article Information
V. P. Astakhov, S. Abi Karam, M. O. M. Osman

Concordia University, Montreal, Quebec, CANADA, H3G 1M8

J. Manuf. Sci. Eng 120(4), 820-822 (Nov 01, 1998) (3 pages) doi:10.1115/1.2830226 History: Received December 01, 1993; Revised August 01, 1997; Online January 23, 2008

Abstract

This paper investigates experimentally the correlation between the cutting fluid pressure distribution in the bottom clearance (the space enclosed by the bottom of the hole being drilled from one side and the flanks of the drill head from the other) and the flank wear of BTA drills. Two types of BTA drills were studied representing two basic drill designs in the current use: single- and multi-edge drilling heads. Experiments included the study of the bottom clearance topology, the measurements of the cutting fluid pressure distribution in the bottom clearance, and the study of the tool wear topology. The results reveal the notable correlation between the cutting fluid pressure distribution in the bottom clearance and the topography of tool wear.

Copyright © 1998 by The American Society of Mechanical Engineers
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