Patent ID: 6929427
Filing Date: 2005-08-16
Classification: B23C,Y10T

Abstract:
1. A cutting insert comprising: a top surface, a bottom surface, and a peripheral side surface extending therebetween, the peripheral side surface comprising a pair of opposing major side surfaces and a pair of opposing minor side surfaces; two opposing major cutting edges formed at the intersection of the opposing major side surfaces with the top surface; wherein each one of the pair of opposing major side surfaces comprises two spaced apart generally flat and non-coplanar abutment surfaces; wherein a first of the two spaced apart abutment surfaces makes a first angle α with a normal N to a plane P passing through the bottom surface of the cutting insert and a second of the two spaced apart abutment surfaces makes a second angle β with the normal N; and wherein each major side surface further comprises at least one upper relief surface disposed between the abutment surfaces and the major cutting edge, and forming a relief angle γ with the normal N.