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RESEARCH PAPERS

The Detection of Tool Breakage in Milling Operations

[+] Author and Article Information
Y. Altintas, I. Yellowley, J. Tlusty

McMaster University, Mechanical Engineering Department, Hamilton, Ontario L8S 4L7

J. Eng. Ind 110(3), 271-277 (Aug 01, 1988) (7 pages) doi:10.1115/1.3187881 History: Received December 01, 1985; Online July 30, 2009

Abstract

The paper describes a rather simple and efficient algorithm for processing the milling force signal to detect cutter breakage. Using sampling synchronized with cutter teeth the basic variation per tooth is removed by calculating average forces per tooth. The first difference of these forces detects both breakage and some sudden changes in cutting conditions (cornering, milling over a slot). The second difference distinguishes between the two. The algorithm is illustrated by computational simulations as well as by measurements in milling tests.

Copyright © 1988 by ASME
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