ANALYSIS OF CUTTING FORCES IN BALL-END MILLING

A cutting force model for ball end milling is developed, the model bei ng based mainly on the assumption that the cutting force is equal to t he product of the cutting area and the specific cutting force. The for mulation of the cutting area is derived from the geometry of the mill and the workpiece, whilst the specific cutting force is obtained by th ird-order curve-fitting of data measured in experiments. The model est ablished in this paper predicts the cutting forces in ball-end milling much more accurately than to previous models.