Abstract
Abstract To realize fully-automated, intelligent machining. it is necessary to develop a method for judging the machining state in real-time. A method for determining the machining state in milling is described. The technique utilizes the “force vector locus” determined from the measured force data. The variance in the distance from the center of gravity to each sample point is used to distinguish between normal cutting and chatter conditions. Because the variance depends on the cutting conditions, as well as on the cutting state. the threshold variance is set relative to the ideal variance calculated from the Kronenbers cutting force model. Experiments have demonstrated the utility of the technique in actual milling operations.
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