Chip volume prediction using a numerical control verification model

This paper presents a prediction model of chip volume per tooth in milling operations using a numerical control (NC) verification model that can describe actual cutting. This is important from the viewpoint of cutting force calculation and prediction of the chip load on a cutter tooth. In this paper, the cutter swept volumes along the path were calculated from the information obtained from NC codes as well as the feed-rate. The chip volume per tooth was kinetically modeled for the machining state of free-formed surfaces with flat, ball and round endmills, respectively. To investigate the effectiveness of the proposed model, simulation studies were conducted. Following this simulation, the chip volume per tooth precisely mimicked real machining.