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    Bonding of cutters in diamond drill bits
    1.
    发明授权
    Bonding of cutters in diamond drill bits 有权
    金刚石钻头切割机的接合

    公开(公告)号：US07997358B2

    公开(公告)日：2011-08-16

    申请号：US12582212

    申请日：2009-10-20

    Applicant: Saul N Izaguirre ,  Thomas W. Oldham ,  Kumar T Kembaiyan ,  Gary Chunn ,  Anthony Griffo ,  Robert Denton ,  Brian A White

    Inventor： Saul N Izaguirre ,  Thomas W. Oldham ,  Kumar T Kembaiyan ,  Gary Chunn ,  Anthony Griffo ,  Robert Denton ,  Brian A White

    IPC: E21B10/46

    CPC classification number: E21B10/567 ,  B22F7/06 ,  B22F7/062 ,  B22F2005/001

    Abstract: A bit body formed of a mixture of matrix material and superabrasive powder and including pockets lined with superabrasive-free matrix material, and a method for forming the same, are provided. The pockets are shaped to receive cutting elements therein. The superabrasive-free matrix material enhances braze strength when a cutting element is brazed to surfaces of the pocket. The method for forming the drill bit body includes providing a mold and displacements. The displacements are coated with a mixture of superabrasive free matrix-material and an organic binder. The mold is packed with a mixture of matrix material and superabrasive powder and the arrangement heated to form a solid drill bit body. When the solid bit body is removed from the mold, pockets are formed by the displacements in the bit body and are lined with the layer of superabrasive-free matrix material. The superabrasive material may be diamond, polycrystalline cubic boron nitride, SiC or TiB2 in exemplary embodiments.

    Abstract translation: 由基体材料和超级磨料粉末的混合物形成的一个体，并且包括衬有超无磨料基质材料的口袋及其形成方法。 口袋被成形为在其中容纳切割元件。 当将切割元件钎焊到袋的表面时，超无磨料基质材料增强了钎焊强度。 用于形成钻头体的方法包括提供模具和位移。 位移用超磨料自由基质材料和有机粘合剂的混合物涂覆。 模具中填充有基体材料和超级磨料粉末的混合物，并将该装置加热形成固体钻头体。 当固体钻头体从模具中取出时，通过钻头体中的位移形成凹坑，并且衬有超级无磨料基体材料层。 在示例性实施例中，超研磨材料可以是金刚石，多晶立方氮化硼，SiC或TiB 2。

    Layered hardfacing, durable hardfacing for drill bits
    2.
    发明授权
    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：US07373997B2

    公开(公告)日：2008-05-20

    申请号：US11061305

    申请日：2005-02-18

    Applicant: Kumar T. Kembaiyan ,  Madapusi K. Keshavan ,  Alysia C. White ,  Brian A. White

    Inventor： Kumar T. Kembaiyan ,  Madapusi K. Keshavan ,  Alysia C. White ,  Brian A. White

    IPC: E21B10/46 ,  C23C30/00

    CPC classification number: E21B10/54

    Abstract: 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.

    Abstract translation: 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。

    Methods and apparatus for encoding a work item type definition
    3.
    发明授权
    Methods and apparatus for encoding a work item type definition 有权
    编码工作项类型定义的方法和装置

    公开(公告)号：US08239238B2

    公开(公告)日：2012-08-07

    申请号：US11085375

    申请日：2005-03-21

    Applicant: Aliaksei Baturytski ,  Brian A. White ,  Jason L. Prickett

    Inventor： Aliaksei Baturytski ,  Brian A. White ,  Jason L. Prickett

    IPC: G06Q10/00

    CPC classification number: G06Q10/06 ,  G06F11/3664 ,  G06Q10/06311 ,  G06Q10/06316

    Abstract: Methods and apparatus are provided for encoding a work item type definition. In one embodiment, a method is provided for encoding the work item type definition as a data object, such as an XML document. The work item type definition may include a specification of workflow associated with the work item type, and//or a specification of the display of the work item type by a graphical user interface, such as that which may be provided by a workflow management application.

    Abstract translation: 提供了用于编码工作项类型定义的方法和装置。 在一个实施例中，提供了一种用于将工作项类型定义编码为诸如XML文档之类的数据对象的方法。 工作项类型定义可以包括与工作项类型相关联的工作流的规范，和/或图形用户界面的工作项类型的显示的指定，诸如可以由工作流管理应用程序 。

    Layered hardfacing, durable hardfacing for drill bits
    5.
    发明授权
    Layered hardfacing, durable hardfacing for drill bits 有权
    分层硬面，耐用的钻头硬化面

    公开(公告)号：US07770672B2

    公开(公告)日：2010-08-10

    申请号：US12120896

    申请日：2008-05-15

    Applicant: Kumar T. Kembaiyan ,  Madapusi K. Keshavan ,  Alysia C. White ,  Brian A. White

    Inventor： Kumar T. Kembaiyan ,  Madapusi K. Keshavan ,  Alysia C. White ,  Brian A. White

    IPC: E21B10/46 ,  C23C30/00

    CPC classification number: E21B10/54

    Abstract: 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.

    Abstract translation: 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。

    LAYERED HARDFACING, DURABLE HARDFACING FOR DRILL BITS
    7.
    发明申请
    LAYERED HARDFACING, DURABLE HARDFACING FOR DRILL BITS 有权
    层状硬化，钻石钻头的耐久性硬化

    公开(公告)号：US20090120692A1

    公开(公告)日：2009-05-14

    申请号：US12120896

    申请日：2008-05-15

    Applicant: Kumar T. Kembaiyan ,  Madapusi K. Keshavan ,  Alysia C. White ,  Brian A. White

    Inventor： Kumar T. Kembaiyan ,  Madapusi K. Keshavan ,  Alysia C. White ,  Brian A. White

    IPC: E21B10/46 ,  E21B10/26 ,  C23C30/00

    CPC classification number: E21B10/54

    Abstract: 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.

    Abstract translation: 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。

    Polycrystalline diamond carbide composites
    8.
    发明授权
    Polycrystalline diamond carbide composites 有权
    多晶金刚石复合材料

    公开(公告)号：US07211218B2

    公开(公告)日：2007-05-01

    申请号：US10235261

    申请日：2002-09-05

    Applicant: Zhigang Fang ,  Anthony Griffo ,  Brian A. White ,  Stewart Middlemiss ,  Ron K. Eyre

    Inventor： Zhigang Fang ,  Anthony Griffo ,  Brian A. White ,  Stewart Middlemiss ,  Ron K. Eyre

    IPC: B22F3/12

    CPC classification number: E21B10/567 ,  B22F2005/001 ,  B22F2998/10 ,  C09K3/1418 ,  C09K3/1436 ,  C22C26/00 ,  C22C2026/005 ,  E21B10/52 ,  E21B10/56 ,  B22F1/0096 ,  B22F1/025 ,  B22F1/0003 ,  B22F3/15 ,  B22F3/10

    Abstract: Polycrystalline diamond (PCD) carbide composites of this invention have a microstructure comprising a plurality of granules formed from PCD, polycrystalline cubic boron nitride, or mixture thereof, that are distributed within a substantially continuous second matrix region that substantially surrounds the granules and that is formed from a cermet material. In an example embodiment, the granules are polycrystalline diamond and the cermet material is cemented tungsten carbide. PCD carbide composites of this invention display improved properties of fracture toughness and chipping resistance, without substantially compromising wear resistance, when compared to conventional pure PCD materials.

    Abstract translation: 本发明的多晶金刚石（PCD）碳化物复合材料具有包含由PCD，多晶立方氮化硼或其混合物形成的多个颗粒的微结构，其分布在基本上包围颗粒的基本上连续的第二基质区域中，并形成 从金属陶瓷材料。 在一个示例性实施例中，颗粒是多晶金刚石，金属陶瓷材料是硬质合金。 与常规纯PCD材料相比，本发明的PCD碳化物复合材料显示出改进的断裂韧性和耐崩裂性能，而不会显着降低耐磨性。

    Polycrystalline diamond materials formed from coarse-sized diamond grains
    9.
    发明授权
    Polycrystalline diamond materials formed from coarse-sized diamond grains 有权
    由粗大的金刚石颗粒形​​成的多晶金刚石材料

    公开(公告)号：US06951578B1

    公开(公告)日：2005-10-04

    申请号：US09637092

    申请日：2000-08-10

    Applicant: Daniel J. Belnap ,  Nathan R. Anderson ,  Zhigang Fang ,  Anthony Griffo ,  Brian A. White

    Inventor： Daniel J. Belnap ,  Nathan R. Anderson ,  Zhigang Fang ,  Anthony Griffo ,  Brian A. White

    IPC: B01J3/06 ,  C22C26/00 ,  E21B10/52 ,  B32B9/00

    CPC classification number: E21B10/52 ,  B01J3/065 ,  B01J2203/062 ,  C22C26/00

    Abstract: PCD materials of this invention comprise diamond crystals that are bonded together with a catalyst/binder material. The PCD material is prepared by combining diamond grains with a catalyst/binder material either as a premixture or by infiltration during sintering. The PCD material comprises 15 percent by volume or less diamond grains sized 20 micrometers or less. The diamond grains are pressurized under elevated temperature conditions to form the desired PCD material. PCD materials of this invention can constitute the exclusive material phase of a PCD construction, or can form one or more material phase in a multi-phase material microstructure, wherein the multiple material phase can be arranged in an ordered/oriented or random fashion. PCD materials of this invention display improved properties of impact and fatigue resistance, and functional toughness, when used in complex wear environments, when compared to conventional PCs materials comprising intentionally added fine-sized diamond grains.

    Abstract translation: 本发明的PCD材料包括与催化剂/粘合剂材料结合在一起的金刚石晶体。 通过将金刚石晶粒与催化剂/粘合剂材料组合作为预混合物或通过在烧结期间的渗透来制备PCD材料。 PCD材料包括15微摩尔或更小的15体积％或更少的金刚石颗粒。 金刚石晶粒在高温条件下被加压以形成所需的PCD材料。 本发明的PCD材料可以构成PCD结构的独特材料相，或者可以在多相材料微结构中形成一个或多个材料相，其中多个材料相可以以有序/定向或随机的方式布置。 当与常规的包含有意添加的精细尺寸的金刚石颗粒的材料相比时，本发明的PCD材料在复杂的磨损环境中使用时显示改善的冲击和抗疲劳性能以及功能性韧性。

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