METHODS OF REPAIRING CUTTING ELEMENT POCKETS IN EARTH-BORING TOOLS WITH DEPTH-OF-CUT CONTROL FEATURES

摘要

Methods of repairing earth-boring tools may involve providing wear-resistant material over a temporary displacement member to repair a cutting element pocket in a body and a depth-of-cut control feature using the wear-resistant material. In some embodiments, the wear-resistant material may comprise a particle-matrix composite material. For example, a hardfacing material may be built up over a temporary displacement member to form or repair a cutting element pocket and provide a depth-of-cut control feature. Earth-boring tools may include a depth-of-cut control feature comprising a wear-resistant material. The depth-of-cut control feature may be configured to limit a depth-of-cut of a cutting element secured within a cutting element pocket partially defined by at least one surface of the depth-of-cut control feature. Intermediate structures formed during fabrication of earth-boring tools may include a depth-of-cut control feature extending over a temporary displacement member.

主权项

1. An earth-boring tool, comprising:
a body; and a depth-of-cut control feature on a surface of the body, the depth-of-cut control feature comprising a particle-matrix composite material and configured to limit a depth-of-cut of at least one cutting element secured to the body within a pocket, wherein the pocket is partially defined by at least one surface of the body and at least one surface of the depth-of-cut control feature; a cutting element located within the pocket; and a bonding material located between the cutting element and the depth of cut control feature over at least a substantial surface area of the at least one surface of the depth of cut control feature, the bonding material at least partially securing the cutting element within the pocket.