Trochoidal milling chip thickness model based on real trajectory

Abstract

Abstract With the progress of science and technology industrial development on the use of parts performance and requirements continue to improve, difficult-to-machine materials are more and more widely used, in order to better predict the difficult-to-machine materials milling process cutting force and other parameters, the traditional equivalent chip thickness can no longer meet the calculation accuracy, so it is necessary to describe the chip thickness according to the real trajectory of the cutting edge, using the numerical solution method to find out the intersection between the tool track and the tool track. Thus, the chip geometry during milling is obtained, the instantaneous chip thickness is obtained by solving the transcendental equation, and the chip thickness model is numerically simulated, and finally the chip thickness model in this paper is compared with the traditional chip thickness model, and it is found that this model can better reflect the chip thickness in the machining process.