Investigation of cutting forces during turning with replaceable polyhedral plates

This article discusses the methodology for studying the durability of turning tool plates used in the processing process on CNC equipment. The nature of the change in chip shrinkage depending on the processing period is investigated. It is proposed to take the coefficient of transverse chip shrinkage as a criterion of tool durability. The study draws attention to the relationship between the growth of cutting forces and the destruction of the front surface of the cutter. The measurement results are compared with the theoretical calculation, a conclusion is made about the nature of the influence of the tool use period on the parameters of the cutting process.