Cutting simulation of drilling with cutter runout

A force model is presented to analyze cutting processes in drillings with cutter runouts. In the simulation, three dimensional chip flow in drilling is modelled by piling up the orthogonal cuttings in the planes containing the cutting and the chip flow directions. The cutting model in the chip flow, therefore, is made using the orthogonal cutting data in the coordinate system including the direction of the cutting velocity. The cutter runout, then, is considered by the rotating coordinate system. The cutting simulation is performed in drilling of Aluminum die casting based on the force model presented. First, the force model is validated in comparison of the simulation with the measured cutting force. Then, the cutting force is predicted in drilling with the cutter runout. The cutting forces loaded on the edges are compared each other.