METHOD OF STRENGTHENING BLADE SURFACE OF PART Russian patent published in 2018 - IPC B23P6/00 B23K13/01 

FIELD: technological processes.

SUBSTANCE: first sintered tungsten-cobalt alloy and then the reinforcing charge are applied by electro spark alloying to the rear part of the blade. The charge is heated with high-frequency currents, and the hardened reinforcing layer is deformed in the forming die while simultaneous drawing off the blade. As a reinforcing charge, a charge is used containing, wt %: boron carbide 72-82, silicocalcium 5-9, flux P-0.66 - the rest. It is applied with a layer of 0.8-2.5 mm. When the reinforcing layer is deformed, it is pressed into the blade surface to a depth equal to its thickness, after which the part is held at a temperature of 450-600°C, for 2 to 5 hours, and then cooled in air.

EFFECT: increasing the wear resistance of the blade surface of the part along the wear contour.

2 dwg, 1 tbl