Patent ID: 9724761
Date: 2017-08-08
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 having an end portion that connects to a concave cutting edge portion that fully curves inwardly in a plane that is perpendicular to a first plane containing the central axis, wherein at least one linear cutting edge portion and its corresponding end portion are parallel to the first plane containing the central axis; and a radiused corner portion connecting two adjacent cutting edges, wherein, along one of the two adjacent cutting edges: wherein the concave cutting edge portion and the linear cutting edge portion are coplanar with respect to one another.