CUTTING PLATE, CASING AND SHELL MILL CUTTER Russian patent published in 2017 - IPC B23C5/20 

FIELD: machine engineering.

SUBSTANCE: cutter has an upper V-shaped work surface with a lower part, a lower base surface and a central opening with an elevation. The side surfaces are located under sharp angles to the bottom of the base surface and include the main and auxiliary side connecting the upper and lower surface to form the main and auxiliary inclined edges under sharp internal angles to the bottom of the base surface. There are recesses symmetrically relative to the larger diagonal of the parallelogram in the area of angular cutting edges along the auxiliary side surfaces having the main basic and auxiliary faces inclined to the lower base surface at unequal angles. The main base faces of the recesses are offset from the angles of the cutting plate along the auxiliary side surfaces toward the axis of symmetry of the cutting plate. The angular cutting edges are cantilevered over the recesses. The mill cutter body contains a working portion with nests for mounting said cutting plates.

EFFECT: expanded technological capabilities of the mill.

11 cl, 11 dwg