Hard material insert with polycrystalline diamond layer

Details Hard material insert with polycrystalline diamond layer Hard material insert with polycrystalline diamond layer

E - Fixed Constructions

21

B

E21B 10/46 (2006.01) B23B 27/14 (2006.01) E21B 10/56 (2006.01)

Patent

CA 2436181

A hard material insert (1) for a tool, which is configured segmental and has a planar, polycrystalline diamond layer (2), which has a main cutting element (3) having a radius R in the layer plane and an opposing, at least segmental linear contact edge (4). The minimal radius of curvature K is greater than R/20 in a transition zones (X, X') of the main cutting element (3) to the contact edge (4). The transition areas (X, X') of lesser curvature are produced in post- processing.

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