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MQL flow rate, cutting speed, feed rate and depth of cut (DOC) at three levels are used for experiments. From the developed regression model, it is found that speed, feed and DOC are the primary factors effecting the CF whereas MQL flow rate, speed and DOC are the primary factors effecting the SR and cutting temperature is predominantly affected by MQL flow rate, speed, feed rate and DOC. Based on the mathematical models, multiobjective optimization of process parameters has been performed with genetic algorithm (GA) technique. A set of confirmation experiments were conducted for randomly selected trials of pareto solutions obtained from multi-objective GA to validate the optimum values. An error percentage of 4.6%, 3.7% and 4.9% respectively for CF, SR and CT shows that the predicted optimum values are justified with the confirmation result.
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Usha et al. (2020) studied this question.
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