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1. 发明授权

US06846341B2 Method of forming cutting elements 有权
标题翻译：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。

2. 发明申请

US20070079994A1 Diamond-bonded bodies and compacts with improved thermal stability and mechanical strength 失效
标题翻译：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。

3. 发明申请

US20060191722A1 Ultrahard composite constructions 有权
标题翻译：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。

4. 发明授权

US06510910B2 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.

5. 发明授权

US07647992B2 Polycrystalline diamond carbide composites 有权
标题翻译：多晶金刚石复合材料
公开(公告)号：US07647992B2
公开(公告)日：2010-01-19
申请号：US11743108
申请日：2007-05-01
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： E21B10/46 , B22F7/06
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。

6. 发明授权

US07211218B2 Polycrystalline diamond carbide composites 有权
标题翻译：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。

7. 发明申请

US20060266558A1 Thermally stable ultra-hard material compact construction 有权
标题翻译：热稳定超硬材料结构紧凑
公开(公告)号：US20060266558A1
公开(公告)日：2006-11-30
申请号：US11140482
申请日：2005-05-26
申请人： Stewart Middlemiss , J. Belnap , Nephi Mourik , Thomas Oldham , Anthony Griffo
发明人： Stewart Middlemiss , J. Belnap , Nephi Mourik , Thomas Oldham , Anthony Griffo
IPC分类号： E21B10/36
CPC分类号： E21B10/567 , B22F7/062 , B22F2998/10 , C22C26/00 , E21B10/5735 , B22F3/14 , B22F3/10
摘要： Thermally stable ultra-hard compact constructions of this invention comprise an ultra-hard material body that includes a thermally stable region positioned adjacent a surface of the body. The thermally stable region is formed from consolidated materials that are thermally stable at temperatures greater than about 750° C. The thermally stable region can occupy a partial portion of or the entire ultra-hard material body. The ultra-hard material body can comprise a composite of separate ultra-hard material elements that each form different regions of the body, at least one of the regions being thermally stable. The ultra-hard material body is attached to a desired substrate, an intermediate material is interposed between the body and the substrate, and the intermediate material joins the substrate and body together by high pressure/high temperature process.
摘要翻译：本发明的热稳定的超硬结构包括超硬材料体，其包括邻近本体表面定位的热稳定区域。热稳定区域由在大于约750℃的温度下是热稳定的固结材料形成。热稳定区域可以占据超硬材料体的一部分或全部。超硬材料体可以包括单独的超硬材料元件的复合材料，其各自形成身体的不同区域，至少一个区域是热稳定的。超硬材料体附接到所需的基板上，中间材料插入在主体和基板之间，中间材料通过高压/高温工艺将基板和主体结合在一起。

8. 发明申请

US20050263328A1 Thermally stable diamond bonded materials and compacts 失效
标题翻译：耐热稳定的金刚石粘合材料和压块
公开(公告)号：US20050263328A1
公开(公告)日：2005-12-01
申请号：US11122541
申请日：2005-05-04
申请人： Stewart Middlemiss
发明人： Stewart Middlemiss
IPC分类号： B01J3/06 , B22F7/06 , C01B31/06 , C22C26/00 , E21B10/36 , E21B10/46 , E21B10/56 , E21B10/567
CPC分类号： E21B10/567 , B22F7/06 , B22F2005/001 , B22F2998/00 , Y10T428/30 , B22F3/1017
摘要： Thermally stable diamond bonded materials and compacts include a diamond body having a thermally stable region and a PCD region, and a substrate integrally joined to the body. The thermally stable region has a microstructure comprising a plurality of diamond grains bonded together by a reaction with a reactant material. The PCD region extends from the thermally stable region and has a microstructure of bonded together diamond grains and a metal solvent catalyst disposed interstitially between the bonded diamond grains. The compact is formed by subjecting the diamond grains, reactant material, and metal solvent catalyst to a first temperature and pressure condition to form the thermally stable region, and then to a second higher temperature condition to both form the PCD region and bond the body to a desired substrate.
摘要翻译：热稳定的金刚石粘合材料和压块包括具有热稳定区域和PCD区域的金刚石体，以及与主体一体接合的基底。热稳定区域具有通过与反应物材料反应而结合在一起的多个金刚石晶粒的微结构。 PCD区域从热稳定区域延伸并且具有结合在一起的金刚石晶粒和金属溶剂催化剂之间的微结构，该金属溶剂催化剂在接合的金刚石晶粒之间间隙地设置。通过使金刚石颗粒，反应物料和金属溶剂催化剂经受第一温度和压力条件形成热稳定区域，然后再进入第二较高温度条件以形成PCD区域并将其结合到所需的衬底。

9. 发明申请

US20050230156A1 Thermally-stable polycrystalline diamond materials and compacts 失效
标题翻译：耐热多晶金刚石材料和压块
公开(公告)号：US20050230156A1
公开(公告)日：2005-10-20
申请号：US11005675
申请日：2004-12-06
申请人： John Belnap , Stewart Middlemiss , Anthony Griffo , Thomas Oldham , Kumar Kembaiyan
发明人： John Belnap , Stewart Middlemiss , Anthony Griffo , Thomas Oldham , Kumar Kembaiyan
IPC分类号： B01J3/06 , B22F7/06 , B24D3/00 , B24D11/00 , C01B31/06 , C04B35/52 , C04B35/645 , C22C26/00 , E21B10/00 , E21B10/56 , E21B10/567 , E21B10/573
CPC分类号： E21B10/567 , B01J3/065 , B01J2203/062 , B01J2203/0655 , B01J2203/0685 , B22F7/06 , B22F2998/00 , B22F2998/10 , C01B32/28 , C04B35/52 , C04B35/645 , C04B2235/3275 , C04B2235/3826 , C04B2235/3891 , C04B2235/40 , C04B2235/402 , C04B2235/404 , C04B2235/405 , C04B2235/421 , C04B2235/427 , C04B2235/428 , C04B2235/80 , C22C1/058 , C22C26/00 , C22C2204/00 , E21B10/56 , E21B10/5735 , Y10T428/12056 , Y10T428/12063 , Y10T428/1209 , Y10T428/12146 , Y10T428/30 , B22F2207/01 , B22F1/0059 , B22F1/025 , B22F3/15
摘要： Thermally-stable polycrystalline diamond materials of this invention comprise a first phase including a plurality of bonded together diamond crystals, and a second phase including a reaction product formed between a binder/catalyst material and a material reactive with the binder/catalyst material. The reaction product is disposed within interstitial regions of the polycrystalline diamond material that exists between the bonded diamond crystals. The first and second phases are formed during a single high pressure/high temperature process condition. The reaction product has a coefficient of thermal expansion that is relatively closer to that of the bonded together diamond crystals than that of the binder/catalyst material, thereby providing an improved degree of thermal stability to the polycrystalline diamond material.
摘要翻译：本发明的热稳定型多晶金刚石材料包括包含多个结合在一起的金刚石晶体的第一相和包含在粘合剂/催化剂材料与与粘合剂/催化剂材料反应的材料之间形成的反应产物的第二相。反应产物设置在存在于结合的金刚石晶体之间的多晶金刚石材料的间隙区域内。第一和第二相在单个高压/高温工艺条件下形成。反应产物的热膨胀系数比粘合剂/催化剂材料的热膨胀系数更接近于结合在一起的金刚石晶体的热膨胀系数，从而为多晶金刚石材料提供了改善的热稳定性。

10. 发明授权

US06550556B2 Ultra hard material cutter with shaped cutting surface 有权
公开(公告)号：US06550556B2
公开(公告)日：2003-04-22
申请号：US09731498
申请日：2000-12-07
申请人： Stewart Middlemiss , Ronald K. Eyre
发明人： Stewart Middlemiss , Ronald K. Eyre
IPC分类号： E21B1046
CPC分类号： E21B10/5673 , B23C5/202 , C04B35/645 , C04B37/021 , C04B37/023 , C04B2237/361 , C04B2237/363 , C04B2237/401 , C04B2237/64 , E21B10/573 , E21B10/5735 , Y10T407/235 , Y10T407/27
摘要： A cutting layer is provided having a radially extending depression formed on the exposed surface of the cutting element's cutting layer. A corresponding depression may be formed on the substrate end surface below the depression formed on the cutting layer. Furthermore, secondary shallower depressions may be formed on the cutting layer. The cutting element is typically mounted in a drag bit such that the cutting layer radially extending depression makes contact with the earth formations.

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