Diamond enhanced drilling insert with high impact resistance


Ontology type: sgo:Patent     


Patent Info

DATE

N/A

AUTHORS

Yi Fang , Scott L. Horman

ABSTRACT

An insert for a drill bit may include a substrate; a working layer of polycrystalline diamond material on the uppermost end of the insert, wherein the polycrystalline diamond material includes a plurality of interconnected diamond grains; and a binder material; and an inner transition layer between the working layer and the substrate, wherein the inner transition layer is adjacent to the substrate; wherein the inner transition layer has a hardness that is at least 500 HV greater than the hardness of the substrate. More... »

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