CUTTING ELEMENTS FOR EARTH-BORING TOOLS, EARTH-BORING TOOLS INCLUDING SUCH CUTTING ELEMENTS, AND RELATED METHODS

摘要

A cutting element for an earth-boring tool includes a volume of superabrasive material having a cutting face and a shaped feature on the cutting face. The shaped feature may include at least one of a recess extending into the volume of superabrasive material from the cutting face and a protrusion extending outward from the cutting face. A first portion of the cutting face may have a first surface roughness, and a second portion of the cutting face may have a second surface roughness greater than the first surface roughness of the first portion of the cutting face. The volume of superabrasive material may be disposed on a substrate. Methods of forming cutting elements may include forming one or more shaped features in a cutting face of the cutting elements. Earth-boring tools may include such cutting elements.

主权项

1. A cutting element for an earth-boring tool, comprising:
a substrate; and a volume of superabrasive material disposed on the substrate, the volume of superabrasive material having a cutting face comprising a domed surface extending outward from the cutting face and at least one recess extending into the cutting face, a first portion of the cutting face having a first surface roughness, and a second portion of the cutting face having a second surface roughness greater than the first surface roughness of the first portion of the cutting face; wherein the first portion of the cutting face comprises the domed surface and is configured to generate at least two discrete streams of formation cuttings when the cutting element is mounted to an earth-boring tool and used to cut a subterranean formation.