CUTTING INSERT FOR MILLING MACHINES Russian patent published in 1994 - IPC

FIELD: metal machining. SUBSTANCE: cutting insert has plurality of successively arranged cutting edges and intermediate edges located between the cutting edges. Each cutting edge has front and rear surfaces, rear end of one cutting edge extending to front edge through intermediate edge. Intermediate edges are directed toward main edge. Each line normal to the axis of rotation of mill intersects cutting edge so that in the course of operation cutting edges overlap. EFFECT: enhanced efficiency of milling. 10 cl, 17 dwg