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    MULTI-CHAMFER CUTTING ELEMENTS HAVING A SHAPED CUTTING FACE, EARTH-BORING TOOLS INCLUDING SUCH CUTTING ELEMENTS, AND RELATED METHODS
    11.
    发明专利
    MULTI-CHAMFER CUTTING ELEMENTS HAVING A SHAPED CUTTING FACE, EARTH-BORING TOOLS INCLUDING SUCH CUTTING ELEMENTS, AND RELATED METHODS 未知

    公开(公告)号：CA2960640C

    公开(公告)日：2019-06-04

    申请号：CA2960640

    申请日：2015-09-08

    Applicant: BAKER HUGHES INC

    Inventor： PATEL SURESH ,  STOCKEY DAVID A ,  FLORES ALEJANDRO ,  DIGIOVANNI ANTHONY A ,  SCOTT DANNY E ,  LEDGERWOOD LEROY W

    IPC: E21B10/42 ,  E21B10/43

    Abstract: A cutting element for an earth-boring tool includes a substrate and volume of superabrasive material positioned on the substrate. The volume of superabrasive material includes a cutting face having at least one recess extending into the volume of superabrasive material and/or at least one protrusion extending outward from the volume of superabrasive material. The volume of superabrasive material includes a first chamfer surface having a peripheral edge and a radially innermost edge. The peripheral edge of the first chamfer surface is located proximate a cutting edge of the volume of superabrasive material. A radial width of the first chamfer surface is between about 0.002 inch and about 0.045 inch. The volume of superabrasive material also includes a second chamfer surface having a peripheral edge and a radially innermost edge. The peripheral edge of the second chamfer surface is located adjacent the radially innermost edge of the first chamfer surface.

    CUTTING ELEMENTS HAVING NON-PLANAR CUTTING FACES WITH SELECTIVELY LEACHED REGIONS, EARTH-BORING TOOLS INCLUDING SUCH CUTTING ELEMENTS, AND RELATED METHODS
    12.
    发明专利
    CUTTING ELEMENTS HAVING NON-PLANAR CUTTING FACES WITH SELECTIVELY LEACHED REGIONS, EARTH-BORING TOOLS INCLUDING SUCH CUTTING ELEMENTS, AND RELATED METHODS 未知

    公开(公告)号：CA2942530C

    公开(公告)日：2019-01-15

    申请号：CA2942530

    申请日：2015-03-13

    Applicant: BAKER HUGHES INC

    Inventor： STOCKEY DAVID A

    IPC: E21B10/42 ,  E21B10/46 ,  E21B10/62

    Abstract: A cutting element may include a substrate and a volume of polycrystalline diamond material affixed to the substrate at an interface. The volume of polycrystalline diamond may include a front cutting face with at least one substantially planar portion and at least one recess. The at least one recess may extend from a plane defined by the at least one substantially planar portion a first depth into the volume of polycrystalline diamond material in an axial direction parallel to a central axis of the cutting element. The volume of polycrystalline diamond material may comprise a region including a catalyst material. At least one region substantially free of the catalyst material may extend from the at least one substantially planar portion of the front cutting face a second depth into the volume of polycrystalline diamond in the axial direction. Methods of forming cutting elements.

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