METHOD FOR ELECTRIC-SPARK ALLOYING OF HARDENED STEEL PARTS Russian patent published in 2017 - IPC B23H9/00 B23H1/00 

FIELD: electricity.

SUBSTANCE: in the method for electric-spark alloying of the hardened steel parts, dopant material transfer of the electrode-tool is carried out to the workpiece surface under the effect of the pulsed electric spark discharges between the electrode-tool connected to the DC source as anode and the workpiece as cathode. In the process of alloying, electrode-tool continuous contact is carried out with the part, and electric current supply to them is carried out so that 10≤j≤100, 10^-3≥t_ch≥10^-5, t_p>t_ch, where j - current density (kA/cm²), t_ch - current pulse duration (s), t_p - pause duration between the current pulses (s).

EFFECT: hardening the steel parts by electric-spark alloying, providing improved performance.

7 dwg, 1 tbl, 1 ex