Cutting elements for earth-boring tools, earth-boring tools including such cutting elements and related methods

摘要

Cutting elements, earth-boring drill bits having such cutting elements and related methods include a cutting element having a superabrasive table positioned on a substrate, and at least one recessed surface in a cutting face of the superabrasive table.

主权项

1. A cutting element for an earth-boring tool, comprising:
a superabrasive table positioned on a substrate, the superabrasive table defining a cutting face of the cutting element, the superabrasive table comprising:
at least a portion of a lateral side surface of the cutting element;a substantially planar surface of the cutting face; andat least one substantially planar annular recessed surface in the cutting face of the superabrasive table, the at least one substantially planar annular recessed surface having a radially outer edge and a radially inner edge, the substantially planar surface of the cutting face extending between the radially outer edge of the at least one substantially planar annular recessed surface and the lateral side surface of the cutting element,wherein a distance between the radially outer edge of the at least one substantially planar annular recessed surface and the lateral side surface of the cutting element is smaller than a distance between the radially outer edge and the radially inner edge of the at least one substantially planar annular recessed surface, andwherein the distance between the radially outer edge and the radially inner edge of the at least one substantially planar annular recessed surface is greater than a diameter of a circle defined by the radially inner edge of the at least one substantially planar annular recessed surface.