Modular system for determining force characteristics of the cutting process

The paper presents a method for determining the force characteristics of the cutting process, introduced in the format of a modular system. The modules of input data generation, experiment planning, and results processing are highlighted and considered. The developed modular system makes it possible to obtain a polynomial dependence of the force characteristics on the processing parameters in a given technological area, which guarantees high accuracy of analytical calculations and eliminates errors associated with extrapolation. Within the modules, several features are considered, ensuring the connection of mathematical modeling and mechanical processing processes. In particular, the definition of the most significant parameters, the imposition of technological limitations, the use of multifactorial experiments, including fractional factorial ones, methods of decoding dependencies into natural values, and errors that arise in this case are considered. The use of the proposed modular system is demonstrated by examples of external longitudinal turning, drilling, and threading with taps and threaded cutters. It is shown that the use of this modular system makes it possible to predict the values of the cutting force within the factor space with an error of 2%.