Patent ID: 9724770
Date: 2017-08-08
CPC Classifications: B23B,B23C,Y10T

Claim:
1. A double-sided cutting insert having eight main cutting edges and eight wiper edges, the cutting insert comprising: a square top face; a bottom face 180-degree rotationally symmetric with the top face; a normal axis (NA) passing normal to the top and bottom faces and defining a thickness direction of the cutting insert; and four side faces extending between the top face and the bottom face, each of the side face comprising: a first sub-face having a main cutting edge adjacent to the top face and a wiper edge opposed to the main cutting edge and adjacent to the bottom face; and a second sub-face having a wiper edge adjacent to the top face and a main cutting edge opposed to the wiper edge of the second sub-face and adjacent to the bottom face, wherein the first sub-face and the second sub-face are inclined with respect to each other in the thickness direction of the cutting insert such that the wiper edge of the second sub-face, when viewed from top, is inclined inwardly of the cutting insert with respect to the main cutting edge of the first sub-face, and that the wiper edge of the first sub-face, when viewed from bottom, is inclined inwardly of the cutting insert with respect to the main cutting edge of the second sub-face.