Evaluation of the influence of the reaction rate of the thermodynamic subsystem on the dynamics of the cutting process in metalworking

OBRABOTKAMETALLOV Vol. 23 No. 2 2021 TECHNOLOGY system and the fact of improving the quality of the surface to be treated, consider the graph of temperature changes taken from an arti fi cial thermocouple (see Figure 13). As can be seen from Figure 13, in the area of stabilization of the processing process, there is an increase in temperature in the processing zone, which on average amounted to a value greater than 50 0 C. Taking into account the mechanism of temperature formation in the cutting zone, or rather its connection with the reaction time constant of the thermodynamic subsystem of the cutting system, described in detail in (33-34), it is the growth of the time constant that leads to an increase in the temperature itself in the tool contact zone and the work piece. Fig. 13. Diagram of the temperature change of the thermocouple being removed from the thermocouple. Fig. 12. Photo of the processed part