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RESEARCH PAPERS

Tool-Life Distributions—Part 1: Single-Injury Tool-Life Model

[+] Author and Article Information
S. Ramalingam

Department of Mechanical Engineering, Monash University, Clayton, Victoria, Australia

J. D. Watson

B.H.P. Melbourne Research Laboratories, Clayton, Victoria, Australia

J. Eng. Ind 99(3), 519-522 (Aug 01, 1977) (4 pages) doi:10.1115/1.3439271 History: Received August 04, 1976; Online July 15, 2010

Abstract

The statistical variability of tool life in production machining must be accounted for in any rational design of large-volume or automated manufacturing systems. The probabilistic approach needed for such a design is presently limited by lack of data on tool-life distributions and by lack of knowledge of the underlying causes giving rise to tool-life scatter. Given these circumstances, on the basis of relevant physical arguments one may construct probabilistic models that produce distribution functions germane to the problem of tool-life scatter. This paper is concerned with such a study. This first part presents the results obtained on the assumption that the useful life of a tool is terminated by a single, catastrophic injury. Cases where resistance to tool failure is time-independent and time-dependent are examined. The case of tool failure caused by multiple injuries will be presented in Part 2.

Copyright © 1977 by ASME
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