Patent ID: 8277151
Filing Date: 2012-10-02
Classification: B23C,Y10T

Abstract:
1. An indexable cutting insert for rotatable tools for chip removing machining, comprising: an upperside and an underside between which a center axis extends; a plurality of alternately useable first cutting edges which are located in an upper plane extending perpendicularly to the center axis and each one of which is formed in a transition between a front chip surface included in the upperside and a first clearance surface extending rearwardly therefrom; and second cutting edges located in an intermediate plane and each said second cutting edges formed in a transition between a second chip surface behind a first clearance surface and a trailing second clearance surface; wherein a distance between diametrically opposed first cutting edges in the upper plane is greater than a distance between analogous second cutting edges in the intermediate plane, and that a cutting edge angle (α) of at least each first cutting edge is acute.