CUTTING INSERT, CASING OF CUTTING TOOL AND THEIR ASSEMBLY Russian patent published in 2018 - IPC B23C5/20 B23C5/22 B23B27/16 

FIELD: personal use and household items.

SUBSTANCE: cutting insert includes a circular top surface, a circular bottom surface and a back surface portion connecting the upper surface and the bottom surface. Portion of the rear surface is divided into first and second back surfaces along its circumference by a first wavy line that generates a wavy form from the cavities facing the bottom surface and peaks facing the upper surface. Increasing rigidity of fastening of the cutting insert is achieved, regardless of the rear corner of the rear surface, which forms a circular cutting edge.

EFFECT: increasing rigidity of fastening of the cutting insert is achieved, regardless of the rear corner of the rear surface, which forms a circular cutting edge.

12 cl, 15 dwg