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A Study on tool life in the high speed machining of small-size end mill by factorial design of experiments and regression model  

Lim, Pyo (전북대학교 대학원 기계공학과)
Park, Sang-Yoon (전북대학교 대학원 기계공학과)
Yang, Gyun-Eui (전북대학교 기계항공시스템공학과)
Publication Information
Journal of the Korean Society for Precision Engineering / v.23, no.2, 2006 , pp. 73-80 More about this Journal
Abstract
High speed machining(HSM) technique is widely used in the appliance, automobile part and mold industries, because it has many advantages such as good quality, low cost and rapid machining time. But it also has problems such as tool breakage, smooth tool path, and so on. In particular, small size end mill is easy to break, so it must be changed before interrupting operation. Generally, the tool life of small size end mill is affected by the milling conditions whose selected parameters are spindle speed, feedrate, and width of cut. The experiments were carried out by full factorial design of experiments using an orthogonal array. This paper shows optimal combination and mathematical model for tool life, Therefore, the analysis of variance(ANOVA) is employed to analyze the main effects and the interactions of these milling parameters and the second-order polynomial regression model with three independent variables is estimated to predict tool life by multiple regression analysis.
Keywords
High speed machining; Small size end mill; Tool life; Factorial design; ANOVA; Regression model;
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Times Cited By KSCI : 5  (Citation Analysis)
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