KNIFE EDGE FORMING DEVICE Russian patent published in 2020 - IPC B23K9/04 B82Y30/00 

FIELD: manufacturing technology.

SUBSTANCE: invention relates to application of coatings on metal surfaces by electric arc welding and can be used for machining metal surfaces of cutting tool part, in particular, forming cutting edge of knives. Knife edge forming device consists of a housing in the form of a tubular handle of variable cross section, on the surface of which a spring-loaded voltage supply button is arranged at the base attachment point and protrudes beyond the housing surface. Inside the housing there is a pulse transformer. Cathode of the conical shape of the guide is placed on the base parallel to the casing end. Cathode is connected to the DC power supply circuit of the pulse transformer. Electrodes — anodes are made in the form of wire wound on one coil, and filler material in form of wire is wound on other coils, at that both coils and guide are arranged on base.

EFFECT: technical result is simple technique of coating and obtaining required shaping of surface of coating on article, for example edge of knife.

3 cl, 3 dwg