Cemented carbide insert as well as a cemented carbide blank for the manufacture of such cutting inserts

Abstract

A cemented carbide insert, including an upper side, an under side, a plurality of side surfaces extending between the upper side and the underside, and an inset including a cutting edge. The cutting edge includes a nose edge and two main edges converging toward the nose edge. The inset is formed of a material that is harder than the cemented carbide, and is countersunk in the surrounding cemented carbide and co-ground with the surrounding cemented carbide. The inset is arranged in a front, wedge-shaped head delimited by one chip surface and two clearance surfaces running along the main edges. The inset transforms into an adjacent body part via limiting surfaces situated inside imaginary planes in the extension of the chip surface and the clearance surfaces.

Dependencies are inferred from the claim text.