Patent ID: 9243458
Filing Date: 2016-01-26
CPC Classification: B24B,B24D,E21B

Claim Text:
1. A method of pre-sharpening an impregnated cutting structure for a bit for subterranean use, the impregnated cutting structure comprising superabrasive material particles dispersed in and mutually separated by a metal matrix material, the method comprising, prior to placing the impregnated cutting structure in a wellbore on the bit: selecting at least one formation engaging surface of the impregnated cutting structure; and removing a depth of the metal matrix material by machining the metal matrix material of the at least one selected formation engaging surface adjacent, between and separating superabrasive particles dispersed therein to at least one of enhance exposure of already exposed superabrasive particles to an increased height above the metal matrix material or expose portions of unexposed superabrasive particles adjacent the metal matrix material.