Investigation of Machining Parameters for Multiple Response Optimization in Microelectrodischarge Milling

R Mehfuz, Mohammad Yeakub Ali

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

This paper investigated the influence of three micro electrodischarge milling process parameters, which were feed rate, capacitance, and voltage. The response variables were average surface roughness (R a ), maximum peak-to-valley roughness height (R y ), tool wear ratio (TWR), and material removal rate (MRR). Statistical models of these output responses were developed using three-level full factorial design of experiment. The developed models were used for multiple-response optimization by desirability function approach to obtain minimum R a , R y , TWR, and maximum MRR. Maximum desirability was found to be 88%. The optimized values of R a , R y , TWR, and MRR were 0.04, 0.34 μm, 0.044, and 0.08 mg min−1, respectively for 4.79 μm s−1 feed rate, 0.1 nF capacitance, and 80 V voltage. Optimized machining parameters were used in verification experiments, where the responses were found very close to the predicted values.
Original languageEnglish
Pages (from-to)264-275
JournalInternational Journal of Advanced Manufacturing Technology
Volume43
Issue number3-4
Early online date28 Aug 2008
DOIs
Publication statusPublished - Jul 2009

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