Study of the influence of cutter wear and mode on the parameters of the process of milling blanks of polycarbonate parts using ultrasonic vibrations

The research was carried out in order to establish the effect of wear of the milling cutter teeth and the elements of the milling mode of polycarbonate workpieces on the technological parameters of the process, including thermal power, and to determine the elements of the mode that provide the specified parameters. The results of numerical modeling of technological parameters for various combinations of milling cutter wear, depth and cutting speed without and with the using of ultrasonic vibrations (USV) are presented. The patterns of changes of parameters of the milling process of workpieces depending on the wear of the milling cutter, depth and cutting speed, including with the using of USV. The using of USV allows to reduce the main component of the cutting force, the average and maximum temperatures in the chip-tooth contact zone and in the tooth-workpiece contact zone. Using the obtained equations, which establish the effect of wear and mode elements on the parameters of the processing process without and with the use of USV, it is possible to calculate the mode elements that provide the specified parameters of the milling process with an increase in tooth wear.