Diagnostics of the process of cutting internal screw-threads of small diameter obtained by deforming-cutting taps
In the article the variants of the diagnostics of the process of processing internal threads obtained by deforming-cutting taps are considered, the criticism of the methods considered is given. A diagnostic method is proposed in which the norm of the main processing time is proposed as a diagnostic signal. This method is devoid of shortcomings of traditional methods and can be applied in the conditions of automated and flexible production. To implement the proposed method, it is recommended to use machines equipped with a main drive drive without a rigid connection between output power and speed. Mathematical models and methods for determining the boundary values of a diagnostic signal are proposed, where the average diameter of the formed thread is the criterion of quality.