Machining economics has been analyzed frequently as an effort to provide optimal machining condition from the standpoint of the minimum-cost criterion, the maximum-production- rate criterion, and the maximum profit-rate criterion. These objectives were used separately to find the optimal machining conditions, particularly optimal machining speed. There are some situations in which some of these objectives may compete with each other. Added to this there are sometimes other constraints that are set by the working condition. The purpose of this paper is to use multiple objectives optimization technique which balances a set of conflicting goals and stays within such restrictions.
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