Abstract
NC machine tools generate desired shapes by relative motion control between tool and workpiece. Since several tool paths exist in machining products with NC machine tools, it is difficult to plan the suitable motion path for the machining. This study investigates the energy consumption of feed drive systems of NC machine tools during the machining operation. In this study, an evaluation method to predict the energy consumption for a given motion path patterns is proposed. The results of this study confirmed that the proposed method can evaluate the power efficiency of each motion path based on its energy consumption.
