“…In order to reduce or avoid time-consuming experimental studies in the selection of optimal technological parameters of shot blasting hardening, some publications propose to use integrated, generalized parameters or criteria for assigning values D, v and t. These criteria may include a combination of individual process parameters, such as the diameter of the fraction D, the velocity of its impact v and the processing time of the surface unit t. It is assumed that the optimal values of the generalized parameter or criterion correspond to the maximum increase in the fatigue resistance of the part hardened by the shot, of course, taking into account certain boundary conditions. Knowing the optimal values of a generalized parameter, you can assign a value to one process parameter, for example, D or v, and then calculate the value of another [11].…”