Cutting insert with curved cutting edge, especially for milling crankshafts, includes cutting edges with concave shape or extending at right angles to front surface of insert

摘要

The curved cutting edge (12) adjoins a cutting edge (14) extending at right angles to the front surface (10) of the insert or at an angle up to 4 deg. off a right angle to this surface, or the curved cutting edge can adjoin a concave-shaped cutting edge (24). The insert has a convex end surface (11) on at least one side and preferably on two opposite sides, which is provided with a curved cutting edge.