CUTTING PLATE Russian patent published in 2013 - IPC B23B27/14 

FIELD: process engineering.

SUBSTANCE: cutting plate has opposed end surface, lateral surface arranged there between and cutting edge with rounding radius formed at intersection of lateral surface with at least one of end surfaces. Note here that single-layer or sandwiched wear-proof coating is applied on said lateral surface and at least one of end surfaces. Blind holes arranged in one or several rows are made nearby cutting edge radius rounding at, at least, one coated surfaces by laser perpendicular to said surface. Note here that holes in rows adjoining the cutting edge and those in rows on one of aforesaid surfaces are staggered.

EFFECT: higher hardness.

2 cl, 4 dwg