Polycrystalline tables, polycrystalline elements, and related methods

    公开(公告)号:US10099347B2

    公开(公告)日:2018-10-16

    申请号:US13040921

    申请日:2011-03-04

    摘要: Polycrystalline elements include a substrate and a polycrystalline table attached to an end of the substrate. The polycrystalline table includes a first region of superabrasive material having a first permeability and at least a second region of superabrasive material having a second, lesser permeability, the at least a second region being interposed between the substrate and the first region. Methods of forming a polycrystalline element involve attaching a polycrystalline table including a first region of superabrasive material having a first permeability and at least a second region of superabrasive material having a second, lesser permeability to an end of a substrate, the at least a second region being interposed between the first region and the substrate. Catalyst material is removed from at least the first region of the polycrystalline table.

    Diamond-enhanced cutting elements, earth-boring tools employing diamond-enhanced cutting elements, and methods of making diamond-enhanced cutting elements
    15.
    发明授权
    Diamond-enhanced cutting elements, earth-boring tools employing diamond-enhanced cutting elements, and methods of making diamond-enhanced cutting elements 有权
    钻石增强切割元件,采用钻石增强切割元素的钻孔工具,以及制作金刚石增强切割元件的方法

    公开(公告)号:US08292006B2

    公开(公告)日:2012-10-23

    申请号:US12508440

    申请日:2009-07-23

    IPC分类号: E21B10/46

    摘要: Cutting elements for use in earth-boring applications include a substrate, a transition layer, and a working layer. The transition layer and the working layer comprise a continuous matrix phase and a discontinuous diamond phase dispersed throughout the matrix phase. The concentration of diamond in the working layer is higher than in the transition layer. Earth-boring tools include at least one such cutting element. Methods of making cutting elements and earth-boring tools include mixing diamond crystals with matrix particles to form a mixture. The mixture is formulated in such a manner as cause the diamond crystals to comprise about 50% or more by volume of the solid matter in the mixture. The mixture is sintered to form a working layer of a cutting element that is at least substantially free of polycrystalline diamond material and that includes the diamond crystals dispersed within a continuous matrix phase formed from the matrix particles.

    摘要翻译: 用于镗孔应用的切割元件包括基底,过渡层和工作层。 过渡层和工作层包括分散在整个基质相中的连续的基质相和不连续的金刚石相。 工作层中金刚石的浓度高于过渡层。 钻孔工具包括至少一个这样的切割元件。 制造切割元件和钻孔工具的方法包括将金刚石晶体与基质颗粒混合以形成混合物。 混合物配制成使金刚石晶体占混合物中固体物质的约50%或更多的体积。 混合物被烧结以形成至少基本上不含多晶金刚石材料的切割元件的工作层,并且包括分散在由基质颗粒形成的连续基质相中的金刚石晶体。

    DIAMOND-ENHANCED CUTTING ELEMENTS, EARTH-BORING TOOLS EMPLOYING DIAMOND-ENHANCED CUTTING ELEMENTS, AND METHODS OF MAKING DIAMOND-ENHANCED CUTTING ELEMENTS
    16.
    发明申请
    DIAMOND-ENHANCED CUTTING ELEMENTS, EARTH-BORING TOOLS EMPLOYING DIAMOND-ENHANCED CUTTING ELEMENTS, AND METHODS OF MAKING DIAMOND-ENHANCED CUTTING ELEMENTS 有权
    金刚石增强切割元件,采用钻石增强切割元件的接地工具,以及制造金刚石增强切割元件的方法

    公开(公告)号:US20110017517A1

    公开(公告)日:2011-01-27

    申请号:US12508440

    申请日:2009-07-23

    摘要: Cutting elements for use in earth-boring applications include a substrate, a transition layer, and a working layer. The transition layer and the working layer comprise a continuous matrix phase and a discontinuous diamond phase dispersed throughout the matrix phase. The concentration of diamond in the working layer is higher than in the transition layer. Earth-boring tools include at least one such cutting element. Methods of making cutting elements and earth-boring tools include mixing diamond crystals with matrix particles to form a mixture. The mixture is formulated in such a manner as cause the diamond crystals to comprise about 50% or more by volume of the solid matter in the mixture. The mixture is sintered to form a working layer of a cutting element that is at least substantially free of polycrystalline diamond material and that includes the diamond crystals dispersed within a continuous matrix phase formed from the matrix particles.

    摘要翻译: 用于镗孔应用的切割元件包括基底,过渡层和工作层。 过渡层和工作层包括分散在整个基质相中的连续的基质相和不连续的金刚石相。 工作层中金刚石的浓度高于过渡层。 钻孔工具包括至少一个这样的切割元件。 制造切割元件和钻孔工具的方法包括将金刚石晶体与基质颗粒混合以形成混合物。 混合物配制成使金刚石晶体占混合物中固体物质的约50%或更多的体积。 混合物被烧结以形成至少基本上不含多晶金刚石材料的切割元件的工作层,并且包括分散在由基质颗粒形成的连续基质相中的金刚石晶体。

    Earth-boring tools having shaped cutting elements
    17.
    发明授权
    Earth-boring tools having shaped cutting elements 有权
    具有成形切削元件的钻孔工具

    公开(公告)号:US09074435B2

    公开(公告)日:2015-07-07

    申请号:US13098123

    申请日:2011-04-29

    摘要: Cutting elements include a volume of superabrasive material. The volume of superabrasive material comprises a front-cutting surface, an end-cutting surface, a cutting edge, and lateral side surfaces extending between and intersecting each of the front-cutting surface and the end-cutting surface. An earth-boring tool may comprise a bit body and at least one cutting element attached to the bit body. Methods of forming cutting elements comprise forming a volume of superabrasive material comprising forming a front-cutting surface, an end-cutting surface, a cutting edge, and lateral side surfaces extending between and intersecting each of the front-cutting surface and the end-cutting surface. Methods of forming earth-boring tools comprise forming a cutting element and attaching the cutting element to an earth-boring tool.

    摘要翻译: 切割元件包括一定量的超级磨料。 超硬材料的体积包括前切割表面,端切割表面,切割边缘和在每个前切割表面和端切割表面之间延伸并在其之间交叉的横向侧表面。 钻孔工具可以包括钻头体和附接到钻头体的至少一个切割元件。 形成切割元件的方法包括形成一定体积的超级磨料,包括形成前切割表面,端切割表面,切割边缘以及在每个前切割表面和末端切割之间延伸并与之相交的横向侧表面 表面。 形成钻孔工具的方法包括形成切割元件并将切割元件附接到钻孔工具。

    METHODS OF FORMING HARDFACING MATERIALS INCLUDING PCD PARTICLES, AND WELDING RODS INCLUDING SUCH PCD PARTICLES
    19.
    发明申请
    METHODS OF FORMING HARDFACING MATERIALS INCLUDING PCD PARTICLES, AND WELDING RODS INCLUDING SUCH PCD PARTICLES 有权
    包括PCD颗粒在内的形成硬化材料的方法和包括这种PCD颗粒的焊接层

    公开(公告)号:US20120056022A1

    公开(公告)日:2012-03-08

    申请号:US13297040

    申请日:2011-11-15

    IPC分类号: B02C11/08 B23K35/22

    摘要: Hardfacing materials include particles of polycrystalline diamond (PCD) material embedded within a matrix material. The PCD particles comprise a plurality of inter-bonded diamond grains. Material compositions and structures used to apply a hardfacing material to an earth-boring tool (e.g., welding rods) include PCD particles. Earth-boring tools include a hardfacing material comprising PCD particles embedded within a matrix material on at least a portion of a surface of a body of the tools. Methods of forming a hardfacing material include subjecting diamond grains to elevated temperatures and pressures to diamond-to-diamond bonds between the diamond grains and form a PCD material. The PCD material is broken down to form PCD particles that include a plurality of inter-bonded diamond grains. Methods of hardfacing tools include bonding PCD particles to surfaces of the tools using a metal matrix material.

    摘要翻译: 表面材料包括嵌入基质材料中的多晶金刚石(PCD)材料颗粒。 PCD颗粒包括多个相互结合的金刚石晶粒。 用于将表面硬化材料施加到钻孔工具(例如焊条)上的材料组成和结构包括PCD颗粒。 钻孔工具包括硬化材料,其包含嵌入在基体材料中的工具主体表面的至少一部分上的PCD颗粒。 形成表面硬化材料的方法包括对金刚石晶粒进行金刚石晶粒之间的金刚石 - 金刚石键的升高温度和压力,并形成PCD材料。 PCD材料被分解以形成包括多个相互结合的金刚石晶粒的PCD颗粒。 硬化工具的方法包括使用金属基质材料将PCD颗粒粘合到工具的表面上。