Patent ID: 7547164
Filing Date: 2009-06-16
Classification: B23C,Y10T

Abstract:
1. A face-milling insert, comprising: a chip-removing main cutting edge adjacent to a first clearance surface; and a surface-wiping secondary edge adjacent to a second clearance surface, the main cutting edge forming an angle of 45° with an imaginary straight line in the extension of the secondary edge, wherein adjacent to a third clearance surface, an intermediate cutting edge is formed between the main cutting edge and the secondary edge, the intermediate cutting edge being shorter than the main cutting edge, and forming an angle smaller than 45° with the extension line, the intermediate cutting edge transforming into the adjacent edges via first and second arched part edges adjacent to convex clearance surfaces; and the first, arched part edge, which forms a transition between the secondary edge and the intermediate cutting edge, has a radius that is smaller than 1 mm and that is smaller than a radius of the second, arched part edge.