An improved method for the determination of 3D cutting force coefficients and runout parameters in end milling

A simple improved method is suggested for determining constant cutting forc e coefficients, irrespective of the cutting condition and cutter rotation a ngle. This can be achieved through the combination of experimentally determ ined cutting forces with those simulation, performed by a mechanistic cutti ng force model and a geometric uncut chip thickness model. Additionally, th is study presents an approach that estimates runout-related parameters, and the runout offset and its location angle, using only one measurement of cu tting force. This method of estimating 3D end milling force coefficients was experimenta lly verified for a wide range of cutting conditions, and gave significantly better predictions of cutting forces than any other method. The estimated value of the runout offset also agreed well with the measured value.