Title: Chip analysis for the determination of flank wear in dry turning

Authors: A. Noorul Haq, T. Tamizharasan

Addresses: Department of Production Engineering, National Institute of Technology, Thiruchirappalli 620 015, Tamil Nadu, India. ' Department of Production Engineering, National Institute of Technology, Thiruchirappalli 620 015, Tamil Nadu, India

Abstract: The performance assessment of a cemented carbide turning tool insert during dry turning of steel of hardness value ranging from 25 to 40 HRC is presented in this analysis. This work includes chip study and experimental flank wear measurement at different test conditions for optimising the process and product parameters to minimise the flank wear by using Taguchi|s Design of Experiments. A validation experiment is conducted and the validated results are confirmed by calculating the values of Confidence Interval (CI) based on error degrees of freedom and error variance. The required empirical models for flank wear are also developed. The developed empirical models show a goodness of fit with the experimental values. In this work, it is proved that the flank wear of cutting insert is possible to be calculated from the various models developed based on chip characteristics.

Keywords: dry turning; chip characteristics; flank wear; confidence interval; empirical model; dry machining; cemented carbide; tool inserts; steel; Taguchi methods; design of experiments; DOE.

DOI: 10.1504/IJMMM.2006.011062

International Journal of Machining and Machinability of Materials, 2006 Vol.1 No.2, pp.258 - 274

Published online: 06 Oct 2006 *

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