Patent ID: 7438508
Filing Date: 2008-10-21
Classification: B23B,B23C,Y10T

Abstract:
1. A cutting insert for turning comprising an upper surface, a lower surface substantially parallel with the upper surface, and at least three side surfaces extending between the upper and lower surfaces, a transition between two adjacent side surfaces forming a rounded nose radius surface at a cutting insert cutting corner, the cutting insert comprising a peripheral land bridging the upper and side surfaces at least at the cutting corner at a chamfer angle, and an intersection of the land and the nose radius surface forming a nose cutting edge, the nose cutting edge being defined by at least one radius, the cutting corner comprising at least one curved wiper edge, wherein a chamfer angle in a cross-section at the nose cutting edge is larger than a chamfer angle in a cross-section a distance away from the nose cutting edge and the peripheral land in a plan view has a substantially constant width.