Cutting Insert Having Eight Main Cutting Edges and Eight Wiper Edges and Cutting Tool Including The Same

摘要

A double-sided cutting insert for milling which has eight main cutting edges and eight wiper edges. The cutting insert includes top and bottom faces and four side faces. Each side face includes first and second sub-faces inclined with respect to each other. The first sub-face has a main cutting edge adjacent to the top face and a wiper edge adjacent to the bottom face. The second sub-face has a wiper edge adjacent to the top face and a main cutting edge adjacent to the bottom face. The wiper edge of the second sub-face is inclined inwardly relative to the cutting insert with respect to the main cutting edge of the first sub-face. The wiper edge of the first sub-face is inclined inwardly relative to the cutting insert with respect to the main cutting edge of the second sub-face.

主权项

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; 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 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.