Patent ID: 8858132
Filing Date: 2014-10-14
Classification: B23B,B23C,Y10T

Abstract:
1. A cutting insert comprising a first planar end face, an opposing second planar end face parallel to the first planar end face, a bore traversing the first and second planar end faces, a first planar side face perpendicular to the first planar end face, an opposing second planar side face perpendicular to the second planar end face, wherein each end of the first and second planar side faces terminates at a first convex cutting edge section, a second convex cutting edge section and a concave cutting edge section, wherein the first convex cutting edge section includes an outgoing section, and wherein a first tangential line extending from where the outgoing section merges with the second plan end face form a position angle with respect to the second planar face, wherein the position angle is 4 degrees, and wherein a second tangential line common to the first convex cutting edge section and the second convex cutting edge section forms an angle with respect to the first and second planar end faces, and wherein a surface of the first convex cutting edge section, the second convex cutting edge section and the concave cutting edge section is recessed away from its respective cutting edge at an angle of inclination, c, with respect to a central, longitudinal axis of the cutting insert.