The article presents the results of studying the process of cutting cylindrical internal gears by the radial-circular method. The importance and relevance of the task of improving the technology of manufacturing gears and methods of modelling and optimization are substantiated. The advantages, possibilities and scope of the radial-circular method for the production of gears and transmissions are shown. To provide a basis for a comprehensive analysis of the process, a graphical-analytical method has been developed to determine the parameters of chips cut by the teeth of a disk cutter when cutting planetary gears. The regularities of changes in the cut area and chip thickness depending on the gear modulus were investigated. The results made it possible to identify the process features that will affect the cutting force, machining accuracy and tool wear.
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