Influence of parameters of mode of magnetic treatment on structural changes in the tool for the cutting
DOI:
https://doi.org/10.37142/2076-2151/2020-1(50)282Keywords:
magnetic treatment, firmness of instrument, hardness became, thermostability became, tension of magnetic-field, magnetostriction work-hardening, high-speed steel, cold heading, casing dies.Abstract
Kindenko N. I. Influence of parameters of mode of magnetic treatment on structural changes in the tool for the cutting. Material working by pressure. 2020. № 1 (50). Р. 282-287.
The real work is sanctified to the analysis of influence of parameters of the mode of magnetic treatment on what be going on structural changes in an instrument for cutting from high-speed steel. It is marked that magnetically-impulsive treatment is combination electromagnetic and thermodynamics management methods by the non-equilibrium structure of substance. Magnetic treatment is examined as a display of effects of afteraction is in materials being on the borders of stability of their properties and exposed to influence of the external power field.
It is marked that primary cause of improvement of operating descriptions of the instrument exposed to magnetic treatment is a change of properties of instrumental material such as hardness and thermostability. It takes place due to the magnetostriction work-hardening of high-speed steel. It is set that for the steady display of effect of magnetic treatment of instrument and increase of tenure of employment of instrument from high-speed steel it is necessary in every case to take into account the value of tension of magnetic-field, duration of magnetic treatment of instrument and time of self-control of instrument after the operation of magnetic treatment.
It is set that the most increase of firmness of a magnetically treat instrument and most increase of values of hardness and thermostability are got at the the same values of tension of the working field.
