The determination of the optimal combination of processing mode parameters based on the machinability criterion -optimal material removal rate

Abstract Manufacturers of cutting tools offer a large number of recommendations to choose combinations of parameters for processing the same elementary surfaces of a part. These recommendations make it difficult to select and assign controlled parameters of the cutting mode as they depend on a large number of factors, and therefore specialists who are involved in the design of technological documentation and the development of control programs for multi -operational CNC machines have problems. Based on the selected generalized machinability criterion “optimal material removal rate”, combinations of controlled parameters of the cutting mode with a tool are established in all ranges of changes in the recommended parameters of the regime for each processing stage. The combination of controlled parameters of the cutting mode for various processing methods for the adopted tool life T, which provide the optimal material removal rate Q0, was calculated. The methodology and maps have been developed for the optimal combination of controlled cutting parameters of various processing methods for the adopted tool life. The maps of the optimal combination of parameters for the processing of elementary surfaces are normative guidance materials for technologists in the development of technological processes for the manufacture of parts and programmers in the development of control programs for multi-operational CNC machines. Keywords: machining, cutting tool, material removal rate, tool life, T-Q characteristic of the cutting process, optimal combination of processing mode parameters.