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    POLYCRYSTALLINE DIAMOND COMPACTS
    51.
    发明申请
    POLYCRYSTALLINE DIAMOND COMPACTS 审中-公开
    多晶金刚石复合材料

    公开(公告)号：US20140158437A1

    公开(公告)日：2014-06-12

    申请号：US14178118

    申请日：2014-02-11

    Applicant: US SYNTHETIC CORPORATION

    Inventor： Debkumar Mukhopadhyay ,  Kenneth E. Bertagnolli ,  Jair J. Gonzalez

    IPC: E21B10/573 ,  E21B10/55 ,  B24D3/10

    CPC classification number: E21B10/5735 ,  B22F7/06 ,  B22F2005/001 ,  B24D3/10 ,  C22C26/00 ,  E21B10/55 ,  E21B10/567 ,  Y10T428/24777

    Abstract: In an embodiment, a polycrystalline diamond compact includes a substrate, and a polycrystalline diamond (“PCD”) table bonded to the substrate and including an exterior working surface, at least one lateral surface, and a chamfer extending between the exterior working surface and the at least one lateral surface. The PCD table includes bonded diamond grains defining interstitial regions. The PCD table includes a first region adjacent to the substrate and a second leached region adjacent to the first region and extending inwardly from the exterior working surface to a selected depth. At least a portion of the interstitial regions of the first region include an infiltrant disposed therein. The interstitial regions of the second leached region are substantially free of metal-solvent catalyst. The second region is defined by the exterior working surface, the lateral surface, the chamfer, and a generally horizontal boundary located below the chamfer.

    Abstract translation: 在一个实施例中，多晶金刚石致密体包括基底和结合到基底的多晶金刚石（“PCD”）台，其包括外部工作表面，至少一个侧面和在外部工作表面和 至少一个侧面。 PCD表包括限定间隙区域的结合金刚石颗粒。 PCD台包括与基板相邻的第一区域和与第一区域相邻并从外部工作表面向内延伸到选定深度的第二浸出区域。 第一区域的间隙区域的至少一部分包括设置在其中的渗透剂。 第二浸出区域的间隙区域基本上不含金属 - 溶剂催化剂。 第二区域由位于倒角下方的外部工作表面，侧面，倒角和大致水平的边界限定。

    SUPERABRASIVE COMPACTS, METHODS OF MAKING THE SAME, AND APPARATUSES USING THE SAME
    58.
    发明申请
    SUPERABRASIVE COMPACTS, METHODS OF MAKING THE SAME, AND APPARATUSES USING THE SAME 审中-公开

    公开(公告)号：US20200256133A1

    公开(公告)日：2020-08-13

    申请号：US16787214

    申请日：2020-02-11

    Applicant: US SYNTHETIC CORPORATION

    Inventor： Anne-Grethe Slotnaes ,  Daniel Scott ,  Debkumar Mukhopadhyay ,  Jeremy B. Lynn ,  Jiang Qian

    IPC: E21B10/567 ,  F16C33/12

    Abstract: Embodiments disclosed herein relate to superabrasive compacts, methods of making the same, and drill bits incorporating the same. For example, embodiments of a superabrasive compact disclosed herein (e.g., a PDC) may be formed by providing a superabrasive compact. The superabrasive compact includes a superabrasive body and a cemented carbide substrate bonded to the superabrasive body. The cemented carbide substrate includes a base surface, an interfacial surface bonded to the superabrasive body, and at least one peripheral surface extending between the base surface and the interfacial surface. After providing the superabrasive compact, the method includes lasing at least a portion of the peripheral surface of the cemented carbide substrate to form a corrosion-resistant layer

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