Patent ID: 9592560
Date: 2017-03-14
CPC Classifications: B23B,Y10T

Claim:
1. A cutting insert, comprising: a top face; a bottom face, wherein a central axis of the cutting insert extends through the top face and the bottom face; a plurality of side walls extending between the top face and the bottom face; a peripheral cutting edge defined at the juncture of each side wall and the top face, each cutting edge including a linear cutting edge portion and a concave cutting edge portion, wherein the concave cutting edge portion is a curved edge that curves inwardly in a plane that is perpendicular to a plane containing the central axis; and a radiused corner portion connecting two adjacent cutting edges, wherein each linear cutting edge portion extends from one radiused corner portion to the concave cutting edge portion and each concave cutting edge portion extends from the linear cutting edge portion to another radiused corner portion.