METHOD FOR HARDENING CUTTING PARTS OF CULTIVATOR SHARES Russian patent published in 2023 - IPC B23P6/00 C21D9/18 A01B35/20 

FIELD: metalworking.

SUBSTANCE: invention relates to methods of surface hardening of tools of agricultural machinery by electromechanical processing. The method includes surfacing of the cutting parts with a wear-resistant alloy and their electromechanical processing by creating a pressing force of the electrode-tool to the surface of the cutting part and a current density of up to 10⁹ A/m² with the formation of continuous hardening zones up to 3 mm deep and 3.5-7 mm wide parallel to each other. First, a wear-resistant alloy is deposited on the upper or lower surfaces of the cutting part of the cultivator share, then electromechanical hardening of its other surface is performed by zones parallel to the cutting edge and to each other and with a distance between adjacent zones of 0 to 2 mm, in each of which the tool electrode moves along a sinusoidal path. The first zone of electromechanical hardening is formed at a distance of 1 to 3 mm from the cutting edge.

EFFECT: invention increases durability of cultivator shares by increasing wear resistance to abrasive wear.

1 cl, 1 ex, 2 dwg