Patent ID: 8702354

Claim:
A cutting insert for a cutting tool for machining a workpiece, the cutting insert comprising: a cutting insert body formed with a upper surface having a main orientation defining a main plane, a lower surface, and a peripheral side wall extending between said upper surface and said lower surface; at least one corner of said cutting insert body being rounded in a circumferential direction and forming a cutting corner at least on a side of said upper surface; a cutting edge formed by an edge in a region of said cutting corner and at least one edge adjoining said cutting corner, said edges extending in each case between said side wall and said upper surface; said cutting insert being formed, along a radial direction extending in the main plane, in order starting from said cutting corner towards a center of the cutting insert, with: a declining rake face; a chip geometry floor adjoining said rake face; a first chip geometry adjoining said chip geometry floor, said first chip geometry having a first surface rising with respect to said chip geometry floor and a first plateau adjoining said first surface; a second chip geometry having a second surface rising with respect to said first plateau and a second plateau adjoining said second surface; a third chip geometry having a third surface rising with respect to said second plateau and a third plateau adjoining said third surface; and said second chip geometry being narrower than said first chip geometry in a transverse direction that extends perpendicularly to the radial direction and parallel to the main plane.