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18 条记录 (耗时 0.016 秒)

    Unplanar non-axisymmetric inserts
    1.
    发明授权
    Unplanar non-axisymmetric inserts 有权

    公开(公告)号：US06510910B2

    公开(公告)日：2003-01-28

    申请号：US09780963

    申请日：2001-02-09

    申请人： Ronald K. Eyre ,  Stewart Middlemiss

    发明人： Ronald K. Eyre ,  Stewart Middlemiss

    IPC分类号： E21B1046

    CPC分类号： E21B10/5673 ,  E21B10/006 ,  E21B10/573 ,  E21B10/5735

    摘要： Cutting elements for incorporation in a drill bit are provided having a body having an end face interfacing with an ultra hard material cutting layer. A main depression having a nonplanar surface is formed on the substrate and extending to the peripheral edge of the substrate subjected to the highest impact loads during drilling. This edge is immediately below the edge of the cutting layer which makes direct contact with the earth formations during drilling. The main depression is formed by forming a plurality of secondary depressions or steps. A second main depression is formed by forming a plurality of secondary depressions or steps. The second main depression also extends to the peripheral edge of the substrate. An ultra hard material layer is bonded to the end face of the cutting element body over the main depressions.

    Gage trimmers and bit incorporating the same
    2.
    发明授权
    Gage trimmers and bit incorporating the same 有权
    量规修剪器和相同的位

    公开(公告)号：US06604588B2

    公开(公告)日：2003-08-12

    申请号：US09966149

    申请日：2001-09-28

    申请人： Ronald K. Eyre ,  Stewart Middlemiss ,  Lynn L. Belnap

    发明人： Ronald K. Eyre ,  Stewart Middlemiss ,  Lynn L. Belnap

    IPC分类号： E21B1052

    CPC分类号： E21B10/5673 ,  E21B10/5735

    摘要： A gage trimmer and a bit incorporating such a gage trimmer are provided. The gage trimmer has an ultra hard material layer having a circumferential surface including a cylindrical portion and a flat surface for bearing against a circumferential wall of a hole drilled by the bit. The ultra hard material layer is formed over a substrate interface surface. The flat surface does not extend to the interface surface.

    摘要翻译： 提供了一种量具修剪器和一个包含这种量具修剪器的位。 量具修剪器具有超硬材料层，其具有包括圆柱形部分和平坦表面的周向表面，用于抵靠钻头钻出的孔的圆周壁。 超硬材料层形成在衬底界面表面上。 平面不延伸到界面。

    Method of forming cutting elements
    4.
    发明授权
    Method of forming cutting elements 有权
    切割元件形成方法

    公开(公告)号：US06846341B2

    公开(公告)日：2005-01-25

    申请号：US10374373

    申请日：2003-02-25

    申请人： Stewart Middlemiss

    发明人： Stewart Middlemiss

    IPC分类号： B23B51/00 ,  B22F3/10 ,  B22F7/06 ,  B23B27/14 ,  B23B27/20 ,  B23P15/28 ,  C04B35/52 ,  C23C24/08 ,  C23C30/00 ,  B24D3/00 ,  B24D17/00 ,  B24D18/00

    CPC分类号： B22F7/06 ,  B22F2005/001 ,  C04B35/52 ,  C04B2235/40 ,  C04B2235/402 ,  C04B2235/404 ,  C04B2235/405 ,  C04B2235/421 ,  C04B2235/427 ,  C04B2235/96 ,  C23C24/08 ,  C23C30/005

    摘要： An ultra-hard semiconductive polycrystalline diamond (PCD) material formed with semiconductive diamond particles doped with Li, Be or Al and/or insulative diamond particles having semiconductive surfaces, tools incorporating the same, and methods for forming the same, are provided. The ultra-hard PCD material may be formed using a layer of insulative diamond grit feedstock that includes additives therein, then sintering to convert a plurality of the diamond crystals to include a semiconductive surface. In another embodiment, the ultra-hard PCD material is formed by sintering semiconductive diamond grit feedstock consisting of diamond crystals doped with Li, Al or Be. The ultra-hard semiconductive PCD cutting layer exhibits increased cuttability, especially in EDM and EDG cutting operations.

    摘要翻译： 提供了由掺杂有Li，Be或Al的半导体金刚石颗粒和/或具有半导体表面的绝缘金刚石颗粒形​​成的超硬半导体多晶金刚石（PCD）材料，以及用于其形成方法。 超硬PCD材料可以使用包括其中的添加剂的绝缘金刚石砂粒原料层形成，然后烧结以将多个金刚石晶体转化为包括半导体表面。 在另一个实施例中，超硬PCD材料通过烧结由掺杂有Li，Al或Be的金刚石晶体组成的半导体金刚石砂粒原料形成。 超硬半导体PCD切割层具有提高的切割性，特别是在EDM和EDG切割操作中。

    Polycrystalline diamond with improved abrasion resistance
    5.
    发明授权
    Polycrystalline diamond with improved abrasion resistance 失效
    具有改善耐磨性的多晶金刚石

    公开(公告)号：US06915866B2

    公开(公告)日：2005-07-12

    申请号：US10349212

    申请日：2003-01-21

    申请人： Stewart Middlemiss

    发明人： Stewart Middlemiss

    IPC分类号： C04B35/5831 ,  E21B10/56 ,  E21B10/567 ,  E21B10/26

    CPC分类号： E21B10/567 ,  C04B35/52 ,  C04B35/5831 ,  C04B2235/3839 ,  C04B2235/405 ,  C04B2235/427 ,  C04B2235/5436 ,  C04B2235/725 ,  C04B2235/96

    摘要： A cutting element and bit incorporating the cutting element is provided, as well as a method for forming the same. The cutting element includes an ultra hard material layer including chromium and carbon and exhibiting increased abrasion resistance without sacrificing toughness. The method for manufacturing the cutting element includes providing a layer of ultra hard material particles and chromium carbide over the substrate, and then sintering to form the cutting element.

    摘要翻译： 提供了包含切割元件的切割元件和钻头以及其形成方法。 切割元件包括包含铬和碳的超硬材料层，并且在不牺牲韧性的情况下显示出增加的耐磨性。 切割元件的制造方法包括在基板上设置超硬材料粒子和碳化铬层，然后烧结以形成切割元件。

    Diamond-bonded bodies and compacts with improved thermal stability and mechanical strength
    7.
    发明申请
    Diamond-bonded bodies and compacts with improved thermal stability and mechanical strength 失效
    具有改善的热稳定性和机械强度的金刚石结合体和压块

    公开(公告)号：US20070079994A1

    公开(公告)日：2007-04-12

    申请号：US11249164

    申请日：2005-10-12

    申请人： Stewart Middlemiss

    发明人： Stewart Middlemiss

    IPC分类号： E21B10/36

    CPC分类号： E21B10/573 ,  C04B35/52 ,  C04B35/645 ,  C04B37/021 ,  C04B2235/3826 ,  C04B2235/427 ,  C04B2235/428 ,  C04B2235/5436 ,  C04B2235/616 ,  C04B2235/80 ,  C04B2237/363 ,  C04B2237/401 ,  C04B2237/61

    摘要： Thermally stable diamond-bonded compacts include a diamond-bonded body having a thermally stable region extending a distance below a diamond-bonded body surface. The thermally stable region comprises a matrix first phase of bonded together diamond crystals, and a second phase interposed within the matrix phase. At least some population of the second phase comprises a reaction product formed between an infiltrant material and the diamond crystals at high pressure/high temperature conditions. The diamond bonded body further includes a polycrystalline diamond region that extends a depth from the thermally stable region and has a microstructure comprising a polycrystalline diamond matrix phase and a catalyst material disposed within interstitial regions of the matrix phase. The compact includes a substrate attached to the diamond-bonded body.

    摘要翻译： 热稳定的金刚石结合的压块包括金刚石结合体，其具有在金刚石结合体表面下方延伸一段距离的热稳定区域。 热稳定区域包括将金刚石晶体结合在一起的矩阵第一相和置于基体相内的第二相。 第二相的至少一些群体包括在高压/高温条件下在渗透材料和金刚石晶体之间形成的反应产物。 金刚石结合体还包括多晶金刚石区域，该多晶金刚石区域从热稳定区域延伸深度，并且具有包含多晶金刚石基质相和设置在基体相的间隙区域内的催化剂材料的微结构。 紧凑件包括附着到金刚石结合体的基底。

    Ultrahard composite constructions
    8.
    发明申请
    Ultrahard composite constructions 有权
    超硬复合结构

    公开(公告)号：US20060191722A1

    公开(公告)日：2006-08-31

    申请号：US11067582

    申请日：2005-02-25

    申请人： J. Belnap ,  Anthony Griffo ,  Ronald Eyre ,  Stewart Middlemiss

    发明人： J. Belnap ,  Anthony Griffo ,  Ronald Eyre ,  Stewart Middlemiss

    IPC分类号： E21B10/00

    CPC分类号： B22F1/0003 ,  B22F2998/10 ,  C22C26/00 ,  E21B10/56 ,  B22F3/12

    摘要： Ultrahard composite constructions comprise a plurality of first phases dispersed within a matrix second phase, wherein each can comprise an ultrahard material including PCD, PcBN, and mixtures thereof. The constructions are formed from a plurality of granules that are combined and sintered at HP/HT conditions. The granules include a core surrounded by a shell and both are formed from an ultrahard material or precursor comprising an ultrahard constituent for forming the ultrahard material. When sintered, the cores form the plurality of first phases, and the shells form at least a portion of the second phase. The ultrahard material used to form the granule core may have an amount of ultrahard constituent different from that used to form the granule shell to provide desired different properties. The ultrahard constituent in the granule core and shell can have approximately the same particle size.

    摘要翻译： 超硬复合结构包括分散在基质第二相中的多个第一相，其中每个第一相可以包含包含PCD，PcBN及其混合物的超硬材料。 这些结构由在HP / HT条件下组合和烧结的多个颗粒形成。 颗粒包括由壳包围的芯，并且都由超硬材料或前体形成，所述超硬材料或前体包含用于形成超硬材料的超硬组分。 当烧结时，芯形成多个第一相，并且壳形成第二相的至少一部分。 用于形成颗粒核的超硬材料可以具有与用于形成颗粒壳的用量相差的超硬组分，以提供所需的不同性质。 颗粒核和壳中的超硬组分可以具有大致相同的粒度。

    Polycrystalline diamond carbide composites
    10.
    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

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

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

    IPC分类号： B22F3/12

    CPC分类号： 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

    摘要： 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.

    摘要翻译： 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。