Novel cutting structures
    11.
    发明申请
    Novel cutting structures 有权
    新型切割结构

    公开(公告)号:US20060165993A1

    公开(公告)日:2006-07-27

    申请号:US11044651

    申请日:2005-01-27

    申请人: Madapusi Keshavan

    发明人: Madapusi Keshavan

    IPC分类号: B24D18/00 C23C16/26 B05D1/36

    摘要: A polycrystalline diamond compact cutter that includes a thermally stable polycrystalline diamond layer, a carbide substrate, and a polycrystalline cubic boron nitride layer interposed between the thermally stable polycrystalline diamond layer and the carbide substrate is disclosed. A method of forming a polycrystalline diamond compact cutter that includes the steps of providing a carbide substrate, disposing a polycrystalline cubic boron nitride layer on the carbide substrate, disposing a polycrystalline diamond layer on the polycrystalline cubic boron nitride layer, and treating at least a portion of the polycrystalline diamond layer to form a thermally stable polycrystalline diamond layer is also disclosed.

    摘要翻译: 公开了一种包括热稳定多晶金刚石层,碳化物衬底和插入在热稳定多晶金刚石层和碳化物衬底之间的多晶立方氮化硼层的多晶金刚石致密切割机。 一种形成多晶金刚石致密切割机的方法,包括以下步骤:提供碳化物基体,在所述碳化物基体上设置多晶立方氮化硼层,在所述多晶立方氮化硼层上设置多晶金刚石层,以及处理至少一部分 的多晶金刚石层以形成热稳定的多晶金刚石层。

    IMPREGNATED DIAMOND CUTTING STRUCTURES
    12.
    发明申请
    IMPREGNATED DIAMOND CUTTING STRUCTURES 有权
    镶嵌金刚石切割结构

    公开(公告)号:US20080128951A1

    公开(公告)日:2008-06-05

    申请号:US12021131

    申请日:2008-01-28

    IPC分类号: B22F3/12 E21B10/46

    摘要: An insert for a drill bit that includes diamond particles disposed in a matrix material, wherein the diamond particles have a contiguity of 15% or less is disclosed. A method of forming a diamond-impregnated cutting structure, that includes loading a plurality of substantially uniformly coated diamond particles into a mold cavity, pre-compacting the substantially uniformly coated diamond particles using a cold-press cycle, and heating the compacted, substantially uniformly coated diamond particles with a matrix material to form the diamond impregnated cutting structure is also disclosed.

    摘要翻译: 一种用于钻头的插入件,其包括设置在基体材料中的金刚石颗粒,其中所述金刚石颗粒的接缝度为15%以下。 一种形成金刚石浸渍的切割结构的方法,其包括将多个基本上均匀涂覆的金刚石颗粒加载到模腔中,使用冷压循环对大致均匀涂覆的金刚石颗粒进行预压实,并加热压实的基本均匀的 还公开了具有基质材料以形成金刚石浸渍切割结构的涂覆金刚石颗粒。

    Layered hardfacing, durable hardfacing for drill bits
    14.
    发明申请
    Layered hardfacing, durable hardfacing for drill bits 失效
    分层硬面,耐用的钻头硬化面

    公开(公告)号:US20060185908A1

    公开(公告)日:2006-08-24

    申请号:US11061305

    申请日:2005-02-18

    IPC分类号: E21B10/36

    CPC分类号: E21B10/54

    摘要: A drill bit having a bit body having at least one blade thereon, at least one cutter pocket disposed on the at least one blade, at least one cutter disposed in the at least one cutter pocket, hardfacing applied to at least a selected portion of the drill bit is shown and described. The hardfacing includes a first hardfacing layer disposed on the selected portion of the drill bit, a second hardfacing layer disposed on the first hardfacing layer, wherein the first hardfacing layer has a hardness different than a hardness of the second hardfacing layer.

    摘要翻译: 一种具有位于其上的至少一个刀片的钻头体的钻头,设置在所述至少一个刀片上的至少一个切割器凹槽,设置在所述至少一个切割器凹槽中的至少一个切割器,至少施加到所述至少一个刀片的选定部分的硬化面 显示和描述钻头。 表面硬化包括设置在钻头的选定部分上的第一表面硬化层,设置在第一表面硬化层上的第二表面硬化层,其中第一表面硬化层具有与第二表面硬化层的硬度不同的硬度。