Element Six (uk) Limited

Baker Hughes Holdings LLC

Element Six Gmbh

Gerard Dolan

Nicholas J Lyons

Raymond Anthony Spits

Changzheng Ji

Emilio Lopez Lopez

Konrad Izbinski

A cutter element for an earth-boring tool, comprising a polycrystalline diamond (PCD) volume joined at an interface boundary to a cemented carbide substrate. The PCD volume includes a rake face opposite the interface boundary, an edge of the rake face being suitable as a cutting edge of the cutter element. The PCD volume comprises a plurality of strata directly joined to each other at inter-strata boundaries, in which each of a first plurality of the strata comprises PCD material having a first diamond content; each of a second plurality of the strata comprises PCD material having a second diamond content; the second diamond content being greater than the first diamond content; and the strata of the first and second pluralities disposed in an alternating arrangement with respect to each other. The strata are configured and arranged such that a radial line through the edge and a centroid of the interface boundary intersects, within 1,000 microns from the edge, each of the inter-strata boundaries, and the respective tangent plane to each inter-strata boundary at the respective intersection is disposed relative to the radial line at no less than a minimum angle of 30&#xb0;.

Polycrystalline diamond cutter element and earth boring tool

Growing community of inventors

Spring, TX, United States of America

Gerard Dolan