REPLACEABLE DOUBLE-SIDED CUTTING PLATE AND CUTTING TOOL Russian patent published in 2014 - IPC B23B27/16 B23C5/20 B23D77/00 

FIELD: machine building.

SUBSTANCE: replaceable double-sided cutting plate in the form of a polyhedron or a circle and is designed for installation and fixation of a cutting tool in the seat, is limited by upper and lower surfaces and a side surface arranged between them, and has support surfaces accordingly facing upwards and downwards, side support surfaces, cutting edges, arranged on the crossing of the upper and lower surfaces with the side surface, and a through hole, limited by the side surface with an axis that matches the axis of the rotary symmetry. The through hole is made with a cross section in the form of a polyhedron. At the same time on the side surface of the through hole symmetrically relative to the middle plane perpendicular to the axis of rotary symmetry there is a rib. At the same time the specified side support surfaces are arranged on the side surface of the through hole, and support surfaces facing upwards and downwards - on side surfaces of the specified rib.

EFFECT: increased strength of a cutting plate in the zone of a cutting wedge.

3 cl, 9 dwg