CUTTING ELEMENTS, EARTH-BORING TOOLS INCORPORATING SUCH CUTTING ELEMENTS, AND METHODS OF FORMING SUCH CUTTING ELEMENTS
    3.
    发明公开
    CUTTING ELEMENTS, EARTH-BORING TOOLS INCORPORATING SUCH CUTTING ELEMENTS, AND METHODS OF FORMING SUCH CUTTING ELEMENTS 审中-公开
    切割元件,ERDBOHRWERKZEUGE这样的切削元件和用于制备这种切削元件

    公开(公告)号:EP2622169A2

    公开(公告)日:2013-08-07

    申请号:EP11829781.1

    申请日:2011-09-26

    摘要: Cutting elements include a substrate, a thermally stable polycrystalline table comprising a superhard material secured to the substrate, and a layer of metal interposed between, and attaching the substrate and the thermally stable polycrystalline table. Methods of forming a cutting element include providing a thermally stable polycrystalline table in a mold, providing a layer of metal on the thermally stable polycrystalline table, distributing a mixture of particles comprising a plurality of hard particles and a plurality of particles comprising a matrix material on the layer of metal, and heating the mold while applying pressure to the mixture of particles to cause the mixture of particles to coalesce and form a substrate and at least partially melt the layer of metal to flow and wet the thermally stable polycrystalline table and the substrate to form an attachment therebetween.

    摘要翻译: 切割元件包括一个基底,一个热稳定的多晶台包括固定到所述基底的超硬材料和金属之间的层,以及将所述基板和所述热稳定多晶表。 形成切割元件的方法包括在模具中提供一热稳定聚晶表,对热稳定聚晶表提供金属层,分发包含硬质颗粒的多个部分并加以颗粒包括在基质材料中的多个粒子的混合物 金属的层,和加热所述模具,同时将压力施加到颗粒的混合物,以使颗粒的混合物聚结并形成一个基底和至少部分地熔化金属的层流动并润湿热稳定多晶台和基片 到附接之间形成在那里。

    METHODS FOR SINTERING BODIES OF EARTH BORING TOOLS AND STRUCTURES FORMED DURING THE SAME
    5.
    发明公开
    METHODS FOR SINTERING BODIES OF EARTH BORING TOOLS AND STRUCTURES FORMED DURING THE SAME 审中-公开
    法烧结稀土镗刀的主体WHILE生产结构

    公开(公告)号:EP2313596A2

    公开(公告)日:2011-04-27

    申请号:EP09763487.7

    申请日:2009-06-10

    IPC分类号: E21B10/46 E21B10/54 B22F3/14

    摘要: A first green or brown object is sintered while being supported by a second green or brown object in a furnace, and a body of an earth-boring tool is formed from the first object. An object is sectioned to form first and second structures, and the first structure is sintered within a furnace while it is supported by (e.g., resting on) the second structure. A layer of powder material is provided on a green or brown object, another green or brown object is rested on the powder material over the first green or brown object, and the first and second green or brown objects are sintered with the powder material therebetween. Intermediate structures formed during fabrication of a body of an earth-boring tool include a layer of powder between a green or brown tool body precursor and a green or brown structure supporting the green or brown tool body.