CUTTER STRUCTURES, INSERTS COMPRISING SAME AND METHOD FOR MAKING SAME
    3.
    发明公开
    CUTTER STRUCTURES, INSERTS COMPRISING SAME AND METHOD FOR MAKING SAME 有权
    EINSÄTZEFERRHETELLUNGSVERFAHRENFÜRSCHNEIDESTRUKTUREN

    公开(公告)号:EP2734483A2

    公开(公告)日:2014-05-28

    申请号:EP12741276.5

    申请日:2012-07-17

    摘要: A method of making a cutter structure comprising super-hard material defining a rake face topology is provided. The method includes providing a pre-sinter assembly comprising a substrate body having a formation surface defining a topology complementary to the rake face topology, and an aggregation comprising a plurality of super-hard grains, the aggregation disposed adjacent the formation surface of the substrate body, the substrate body comprising a source of catalyst or binder material capable of promoting the sintering of the super-hard grains at a pressure and temperature at which the super-hard material is thermodynamically stable; subjecting the pre-sinter assembly to the pressure and temperature to provide a sintered polycrystalline super-hard structure joined to the formation surface of the substrate body at a first major boundary of the super-hard structure and having a second major boundary surface opposite the formation surface; removing the substrate body to expose the first major boundary of the super-hard structure defining the rake face topology. Cutter inserts and machine tools are also provided.

    摘要翻译: 提供了一种制造包括限定前角拓扑的超硬材料的切割器结构的方法。 该方法包括提供预烧结组件,该预烧结组件包括具有限定与前刀面拓扑互补的拓扑的形成表面的基体,以及包括多个超硬晶粒的聚集体,所述聚集物设置在基体本体的形成表面附近 所述基材主体包含催化剂或粘合剂材料源,所述催化剂或粘合剂材料能够在超硬材料在热力学上稳定的压力和温度下促进超硬晶粒的烧结; 使预烧结组件经受压力和温度以提供在超硬结构的第一主边界处接合到基体的形成表面的烧结多晶超硬结构,并且具有与形成相对的第二主边界面 表面; 去除衬底体以露出限定前刀面拓扑的超硬结构的第一主要边界。 还提供刀具刀片和机床。

    METHOD OF MAKING A BIT FOR A ROTARY DRILL
    7.
    发明公开
    METHOD OF MAKING A BIT FOR A ROTARY DRILL 有权
    一种用于生产钻井螺丝的转动钻具

    公开(公告)号:EP2648874A1

    公开(公告)日:2013-10-16

    申请号:EP11794151.8

    申请日:2011-12-09

    IPC分类号: B23P15/32 B23B51/00

    CPC分类号: B23P15/32

    摘要: A method of manufacturing a bit for a rotary drill, the bit including a drill tip (30), the method including providing a precursor structure (10) comprising substrate body (14) and a super-hard structure (12) joined to an upper surface of the substrate body; cutting a plurality of conformal inserts (20) from the precursor structure (10), each insert (20) comprising a part of the super-hard structure; providing a drill tip (30) configured for receiving the insert (20); and joining the insert to the drill tip (30).

    CUTTING INSERTS AND METHOD FOR MAKING SAME
    10.
    发明公开
    CUTTING INSERTS AND METHOD FOR MAKING SAME 审中-公开
    切削刀片和方法及其生产

    公开(公告)号:EP2864070A1

    公开(公告)日:2015-04-29

    申请号:EP13731095.9

    申请日:2013-06-18

    摘要: A method of making a cutter structure (1) comprises placing a pre-formed body (4) of hard material having a surface topography in a canister, placing an aggregated mass of grains of superhard material (2) over said surface topography, placing a punch (10) in contact with the superhard material (2), the punch (10) having a surface with a surface topography inverse to that of the hard material body to imprint a pattern in the superhard material (2) complementary to the surface topography of the punch (10). The surface of the punch (10) contacting the superhard material (2) being formed of a ceramic material that does not react chemically with the superhard material (12) and/or a sinter catalyst for the superhard material (2). A pressure of greater than 3 GPa is then together with a temperature sufficiently high for the catalyst to melt to form the cutter structure (1) with a layer of polycrystalline superhard material bonded to the hard material and having a surface topography corresponding to the surface topography of the hard material.