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METHODS OF FORMING AND REPAIRING CUTTING ELEMENT POCKETS IN EARTH-BORING TOOLS WITH DEPTH-OF-CUT CONTROL FEATURES, AND TOOLS AND STRUCTURES FORMED BY SUCH METHODS
METHODS OF FORMING AND REPAIRING CUTTING ELEMENT POCKETS IN EARTH-BORING TOOLS WITH DEPTH-OF-CUT CONTROL FEATURES, AND TOOLS AND STRUCTURES FORMED BY SUCH METHODS
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机译:具有深度控制特征的镗孔刀具切削和加工方法及以这种方法制成的刀具和结构
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摘要
Methods of forming and repairing earth-boring tools include providing wear-resistant material over a temporary displacement member to form 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 include a depth-of-cut control feature comprising a wear-resistant material. The depth-of-cut control feature is 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 include a depth-of-cut control feature extending over a temporary displacement member.
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