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A Study on Tool Wear Process Control and Tool Quality Life

Volume 2, Number 2, April 2006 - Paper 5 - pp. 163 - 173

MIN ZHANG , ZHEN HE and YAN-FENG DON

Department of Industrial Engineering,
Tianjin University, Tianjin, China 300072

(Received on July 3, 2005)


Abstract:

The factors that govern the tool wear vary with the time rather being constant. In this paper, a model for the residual tool wear process is developed using Glejser test for determining the variations in heteroskedasticity of the process. On the basis of this test, a control chart of the tool wear is developed and process capability indices are calculated. The tool quality life is determined once the minimum process capability indices are known. A method is also developed to determine the tool quality life of automatic machine tools by integrating tool cutting life and knowing the desired quality life.

 

References: 15

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