STUDY OF THE FORMATION OF RESIDUAL STRESSES DURING ELECTRICAL DISCHARGE MACHINING
It has been established in the work that during the process of EDM of the VGL14 alloy and EP517Sh steel, tensile residual stresses arise in the surface layer. It has been established that an increase in the current strength increases the residual stresses value, and with an increase in the duration of the pulse, on the contrary, it decreases. It has also been found that the current strength has a greater influence on the residual voltages than the duration of the pulse. Therefore, this parameter is of greater importance when choosing the EDM mode. It is recommended to remove the defective layer mechanically to avoid the propagation of microcracks. In this case, useful compressive residual stresses will appear.