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    Polycrystalline diamond sintered/rebonded on carbide substrate containing low tungsten
    1.
    发明授权
    Polycrystalline diamond sintered/rebonded on carbide substrate containing low tungsten 有权

    公开(公告)号：US10358705B2

    公开(公告)日：2019-07-23

    申请号：US15536826

    申请日：2015-11-20

    申请人： Smith International, Inc.

    发明人： Yahua Bao ,  Fulong Wang ,  J. Daniel Belnap ,  Ronald K. Eyre ,  Yi Fang

    IPC分类号： B22F3/14 ,  C22C1/10 ,  C22C26/00 ,  E21B10/573 ,  B22F5/00

    摘要： A method of forming a polycrystalline diamond cutting element includes assembling a diamond material, a substrate, and a source of catalyst material or infiltrant material distinct from the substrate, the source of catalyst material or infiltrant material being adjacent to the diamond material to form an assembly. The substrate includes an attachment material including a refractory metal. The assembly is subjected to a first high-pressure/high temperature condition to cause the catalyst material or infiltrant material to melt and infiltrate into the diamond material and subjected to a second high-pressure/high temperature condition to cause the attachment material to melt and infiltrate a portion of the infiltrated diamond material to bond the infiltrated diamond material to the substrate.

    METHOD OF FORMING A THERMALLY STABLE DIAMOND CUTTING ELEMENT
    3.
    发明申请
    METHOD OF FORMING A THERMALLY STABLE DIAMOND CUTTING ELEMENT 审中-公开
    形成耐热金刚石切割元件的方法

    公开(公告)号：US20140283457A1

    公开(公告)日：2014-09-25

    申请号：US14297320

    申请日：2014-06-05

    申请人： Smith International, Inc.

    发明人： Peter T. Cariveau ,  Ronald K. Eyre ,  Yi Fang

    IPC分类号： B24D18/00 ,  B24D3/10

    CPC分类号： B24D18/0009 ,  B01J3/062 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/0685 ,  B22F7/062 ,  B22F2998/10 ,  B24D3/10 ,  C01B32/25 ,  C22C26/00 ,  C22C2204/00 ,  B22F2003/244 ,  B22F3/1208 ,  B22F3/15

    摘要： A method for forming a diamond body includes placing a thermally stable polycrystalline diamond body and a first substrate into an enclosure, the thermally stable polycrystalline diamond body comprising a plurality of bonded diamond crystals and a plurality of interstitial regions between the bonded diamond crystals, the interstitial regions being substantially free of a catalyst material, heating the thermally stable polycrystalline diamond body and the first substrate to remove residual materials from the thermally stable polycrystalline diamond body, subjecting the thermally stable polycrystalline diamond body and the first substrate to a vacuum for evacuating such residual material, and pressing under high temperature the enclosure, the thermally stable polycrystalline diamond body and the first substrate while maintaining a vacuum in the enclosure to bond the thermally stable polycrystalline diamond body to the substrate.

    摘要翻译： 用于形成金刚石体的方法包括将热稳定的多晶金刚石体和第一基底放置在外壳中，所述热稳定的多晶金刚石体包括多个结合的金刚石晶体和在结合的金刚石晶体之间的多个间隙区域，间隙 基本上不含催化剂材料的区域，加热热稳定的多晶金刚石体和第一基底以从热稳定的多晶金刚石体去除残留的材料，使热稳定的多晶金刚石体和第一基底经受真空以排出这种残余物 材料，并且在高温下压制外壳，热稳定的多晶金刚石体和第一基底，同时在外壳中保持真空以将热稳定的多晶金刚石体粘合到基底上。

    MANUFACTURE OF CUTTING ELEMENTS HAVING LOBES
    4.
    发明申请
    MANUFACTURE OF CUTTING ELEMENTS HAVING LOBES 有权
    切割元件的制造

    公开(公告)号：US20140183800A1

    公开(公告)日：2014-07-03

    申请号：US14141804

    申请日：2013-12-27

    申请人： Smith International, Inc.

    发明人： Michael Stewart ,  Yi Fang ,  Scott L. Horman ,  Jeremy Peterson

    IPC分类号： B22F3/12

    CPC分类号： B22F3/03 ,  B22F3/1208 ,  C23C24/085 ,  E21B10/36 ,  E21B10/46

    摘要： An apparatus for forming a cutting insert may include a compression device having a sleeve with a bore. The sleeve may receive a substantially hollow can. Solid particulates may be positioned within the can, and a substrate material or other punch may also be positioned in the can. A forming device adjacent an end of the can in which the solid particulates are located may include at least one protrusion extending into the bore. The protrusion may be adapted to deform the can while also forming the plurality of solid particulates into a solid mass having one or more reliefs and/or lobes. A method may include pressing the solid particulates while within a can to form a solid mass having one or more reliefs or lobes. An HPHT process may be performed to bond the solid mass to a substrate material.

    摘要翻译： 用于形成切削刀片的装置可以包括具有带孔的套筒的压缩装置。 套筒可以容纳基本上中空的罐。 固体颗粒可以位于罐内，并且基材或其它冲头也可以定位在罐中。 邻近其中固体颗粒位于罐的端部的成形装置可以包括延伸到孔中的至少一个突起。 突起可以适于使罐变形，同时还将多个固体颗粒形成具有一个或多个浮雕和/或裂片的固体块体。 方法可以包括在罐内挤压固体颗粒以形成具有一个或多个浮雕或凸角的固体块体。 可以执行HPHT工艺以将固体物质结合到基底材料。

    HIGHLY WEAR RESISTANT DIAMOND INSERT WITH IMPROVED TRANSITION STRUCTURE
    5.
    发明申请
    HIGHLY WEAR RESISTANT DIAMOND INSERT WITH IMPROVED TRANSITION STRUCTURE 审中-公开
    具有改进的过渡结构的高耐磨金刚石插件

    公开(公告)号：US20140054095A1

    公开(公告)日：2014-02-27

    申请号：US14071277

    申请日：2013-11-04

    申请人： Smith International, Inc.

    发明人： Nephi M. Mourik ,  Peter T. Cariveau ,  Frederico Bellin ,  Yi Fang

    IPC分类号： E21B10/567

    CPC分类号： E21B10/567 ,  B22F2207/01 ,  B22F2207/13 ,  C22C26/00 ,  C22C2026/006 ,  C22C2026/008 ,  C22C2204/00 ,  E21B10/36 ,  E21B10/52 ,  E21B10/55 ,  E21B10/5673 ,  E21B10/60 ,  E21B2010/565

    摘要： An insert for a drill bit may include a metallic carbide body; an outer layer of polycrystalline diamond material on the outermost end of the insert, the polycrystalline diamond material comprising a plurality of interconnected first diamond grains and a first binder material in interstitial regions between the interconnected first diamond grains; and at least one transition layer between the metallic carbide body and the outer layer, the at least one transition layer comprising a composite of second diamond grains, first metal carbide particles, and a second binder material, wherein the first metal carbide particles form a matrix in which the second diamond grains are dispersed, wherein the first metal carbide particles are present in the at least one transition layer in an amount ranging from about 15 to 50 volume percent.

    摘要翻译： 用于钻头的插入件可以包括金属碳化物体; 所述多晶金刚石材料在所述互连的第一金刚石晶粒之间的间隙区域中包括多个互连的第一金刚石晶粒和第一粘合剂材料; 以及在所述金属碳化物体和所述外层之间的至少一个过渡层，所述至少一个过渡层包括第二金刚石晶粒，第一金属碳化物颗粒和第二粘合剂材料的复合物，其中所述第一金属碳化物颗粒形成基体 其中所述第二金刚石晶粒分散，其中所述第一金属碳化物颗粒以约15至50体积％的量存在于所述至少一个过渡层中。