TRIBODEFORMATION AND THERMODYNAMIC INDICATORS OF THE FINISH TURNING PROCESS OF HEAT-RESISTANT STEEL 10GN2MFA

This article is devoted to assessing the relationship between tribodeformation and thermodynamic parameters of the heat-resistant reactor steel processing process. The process of longitudinal finishing turning of 10GN2MFA steel with T15K6 hard alloy plates without cooling under various cutting modes has been experimentally investigated. Based on the experimental tribodeformation parameters of the process, mathematical modeling of the temperature distribution on the front surface of the cutter was performed. It is established that in the studied range of processing modes, the curves of the dependence of the cutting temperature, the maximum calculated temperature of the front surface of the cutter, as well as the wear rate of the plates on the cutting speed pass through a minimum. The maximum wear resistance of the tool corresponds to the range of machining speeds at which the temperature of the front surface of the die is minimal, while a decrease in the overall cutting temperature is recorded in the area of lower turning speeds.