SURFACE HARDENING BY CUTTING-FORMING TOOL Russian patent published in 2015 - IPC C21D8/00 C21D1/06 B23B1/00 

FIELD: process engineering.

SUBSTANCE: invention relates to machine building, particularly, to surface hardening with production of quenched structures. To up wear resistance of parts from quenched metals, primarily, of iron-carbon alloys and to get hardened surface layer with uniform properties, part surface layers is cut layer-by-layer over narrow side by cutter with cutting and forming edges. Note here that cut layers are deformed by tool working surfaces. Then, cut layers are placed on the part by the tool forming edge. In cutting of surface layer, its plastic straining and friction against the tool, tool geometrical parameters and machining parameters are selected to heat cut layer above phase transition temperatures for given machine material. Cut layer is cooled down by conductive heat removal to the blank or by appropriate cooling means.

EFFECT: higher wear resistance.

6 cl, 6 dwg