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An Analysis of Grinding Effects and Economic Life of Cutting Tool with Proportional Age Reduction Model  

Oh, Sung-Youl (Department of Industrial Engineering, Seoul National University)
Hong, Jung-Wan (Department of Industrial System Engineering, Hansung University)
Lee, Sang-Cheon (Division of Industrial Systems Engineering, ERI, Gyeongsang National University)
Lie, Chang-Hoon (Department of Industrial Engineering, Seoul National University)
Publication Information
IE interfaces / v.19, no.4, 2006 , pp. 316-323 More about this Journal
Abstract
In this study, based on Weibull proportional age reduction model and age replacement policy, we analyze economic life of cutting tool which allows re-grinding. Re-grinding task, usually for high-priced machining tools(e.g., broaching tool), is a kind of preventive maintenance activities to extend tool life at the completion of a lot production. The numerical results are also presented. Among the parameters of Weibull proportional age reduction model, the re-grinding effect parameter and Weibull shape parameter have a strong effect on economic tool life, and in the cost parameters, shortage cost is most sensitive. With further study on the parameter estimation of tool life process and cost function, this study can be expected to give more practical contribution to management of general machining tools.
Keywords
economic tool life; age replacement policy; weibull proportional age reduction model;
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