METHOD OF EROSION-RADIATION OF SURFACES OF METAL PARTS SURFACES AND DEVICE FOR ITS USE Russian patent published in 2018 - IPC B23H5/00 B23H1/00 B23K26/342 B23K26/354 

FIELD: machine engineering.

SUBSTANCE: method of erosion-radiation of surfaces of metal parts surface includes simultaneous electroerosion application of a wear-resistant alloy to the surface of a part of the granules of a wear-resistant alloy onto the surface of the part, the application of a micropowder to a viscous material with a layer whose thickness does not exceed the dimensions of said granules, and melting the micropowder by radiant heating. The position of the axes of the moving electrode tool and the beam is combined in the melting zone of the micropowder, in which the melting end temperature is measured. The amount of micropowder fed is controlled by the pressure of the gas supplying it, which forms the radiation heating, and the excess micropowder is sent to the collector of micropowder. The device comprises a housing that is movable and having pivoting assemblies for adjusting the axes of a nozzle for supplying the micropowder to the hardening zone, an electrode tool for electroerosion hardening and a differential temperature sensor in the fusing zone for the micropowder, and a controller for measuring the speed of movement of the casing nozzle, electrode tool and differential sensor. The tool electrode is connected to a pulse generator, and a radiant energy source is connected to the nozzle. At the exit from the hardening zone of the workpiece at an angle to the supply vector of the micropowder, a deflector is provided to rotate the excess micropowder to the collector for feeding it to the hardening zone through the microflower flow sensor of the gas pressure regulator in the nozzle. The reflector is made of a viscous material and is recessed into a collection of micropowders to eliminate the loss of micropowder.

EFFECT: increase of wear resistance of surfaces of metal parts, reduction of labour intensity and power inputs of hardening process.

2 cl, 2 dwg, 1 ex