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US 10,577,869 B2Granted
Cutting elements including internal fluid flow pathways, and related earth-boring tools
AssigneeBaker Hughes, A Ge Company, LLC
InventorsWanjun Cao, Xu Huang, Steven W. Webb, Bo Yu
Life of this patent
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Abstract
A cutting element comprises a supporting substrate, a cutting table comprising a hard material attached to the supporting substrate, and a fluid flow pathway extending through the supporting substrate and the cutting table. The fluid flow pathway is configured to direct fluid delivered to an outermost boundary of the supporting substrate through internal regions of the supporting substrate and the cutting table. A method of forming a cutting element and an earth-boring tool are also described.
Claims9
A cutting element, comprising:
- a supporting substrate;
- a cutting table comprising a hard material attached to the supporting substrate at an interface, the cutting table comprising:
- a side surface;
- a cutting face opposite the interface;
- and a cutting edge between the side surface and the cutting face;
- and a fluid flow pathway configured to direct fluid delivered to a lower surface of the supporting substrate opposite the interface through internal regions of the supporting substrate and the cutting table, the fluid flow pathway comprising:
- a first portion linearly extending, in parallel to a central longitudinal axis of the supporting substrate, through the supporting substrate from an inlet in the lower surface of the supporting substrate to the interface;
- and a second portion spiraling through the cutting table from the interface to an outlet in the cutting face of the cutting table laterally offset from, in a direction extending perpendicular to an orientation of the first portion, the inlet in the lower surface of the supporting substrate.
5 more elements
An earth-boring tool comprising:
- a structure having a pocket therein;
- a cutting element secured within the pocket in the structure, and comprising:
- a supporting substrate;
- a cutting table comprising a hard material attached to the supporting substrate at an interface, the cutting table comprising:
- a side surface;
- a cutting face opposite the interface;
- and a cutting edge between the side surface and the cutting face;
- and a fluid flow pathway configured to direct fluid delivered to a lower surface of the supporting substrate opposite the interface through internal regions of the supporting substrate and the cutting table, the fluid flow pathway comprising:
- a first portion linearly extending, in parallel to a central longitudinal axis of the supporting substrate, through the supporting substrate from an inlet in the lower surface of the supporting substrate to the interface;
- and a second portion spiraling through the cutting table from the interface to an outlet in the cutting face of the cutting table laterally offset from, in a direction extending perpendicular to an orientation of the first portion, the inlet in the lower surface of the supporting substrate.
7 more elements
Dependencies are inferred from the claim text.