Earth-boring tools having pockets for receiving cutting...

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 10/43 (2006.01)

Patent

CA 2695581

Methods of forming cutting element pockets in blades of earth-boring tools include forming a first recess and a second recess intersecting at a location defining the a back of the pocket using a cutter oriented in a manner so as to avoid tool path interference with adjacent blades. A filler material is disposed in the second recess to the location of the back of the pocket. Earth-boring tools having such cutting element pockets are also disclosed.

L'invention concerne des procédés de fabrication de poches d'élément de coupe dans les pales d'outil de forage qui comprennent la création d'un premier renfoncement et d'un second renfoncement se coupant en un emplacement définissant le dos de la poche en utilisant un dispositif de coupe orienté de manière à éviter une interférence de trajet d'outil avec des pales adjacentes. Un matériau de remplissage est disposé dans le second renfoncement à l'emplacement du dos de la poche. Des outils de forage ayant de telles poches d'élément de coupe sont également décrits.

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