Consistency study on three cutting force modelling methods for peripheral milling

Three methods are presented for calibrating the instantaneous cutting force coefficient (ICFC) and the cutter runout parameters in peripheral milling. In the first method, ICFC and the runout parameters are calibrated separately. First, the nominal cutting force components extracted from the measured force data are used to calibrate the ICFC, and then the runout parameters are obtained by optimally selecting those producing the minimum squared difference between the measured and predicted cutting forces. The second method calibrates the cutting force coefficients and the runout parameters simultaneously by choosing those that best maintain the cutting force coefficients constant. The third method was previously proposed by the current authors. Comparisons between the calibrated results from different tests and different methods are made to validate the consistency of the presented methods. Experiments are also conducted for comparison purposes.