FIELD: personal use and household itemsSUBSTANCE: 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 edgeEFFECT: increasing rigidity of fastening of the cutting insert is achieved, regardless of the rear corner of the rear surface, which forms a circular cutting edge12 cl, 15 dwg

Cutting insert, casing of cutting tool and their assembly

FIELD: process engineering. ^ SUBSTANCE: proposed mill comprises shank and cutting section. Cutting edge is shaped to screw line with axially- and radially-variable pitch. Said screw line is described by set of equations including Cartesian coordinates of cutting edge points, amplitude of points, polar radius of mill axial profile, and cutting edge inclination angle. Mill axial profile consists of straight lines, 2nd-order curves or splines. Front surface represents screw surface with constant face angle at every point of cutting edge. Position radius of face surface generatrix depends on polar angle in face cross-section, face angle and mill maximum radius. ^ EFFECT: higher quality of milling. ^ 3 dwg

Kremleva Ljudmila Viktorovna

Papers

Composite woodwork mill