CUTTING INSERTS AND METHOD FOR MAKING SAME
    1.
    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.

    PICK TOOL AND ASSEMBLY COMPRISING SAME
    4.
    发明公开
    PICK TOOL AND ASSEMBLY COMPRISING SAME 有权
    AUFNAHMEWERKZEUG UND DIESES UMFASSENDE ANORDNUNG

    公开(公告)号:EP2812532A2

    公开(公告)日:2014-12-17

    申请号:EP13701224.1

    申请日:2013-01-11

    IPC分类号: E21C35/183 E01C23/088

    摘要: A pick tool comprising a super-hard strike tip, a base and a unitary cemented carbide support body comprising a head portion including an overhang portion, and an insertion shaft extending from the head portion, a surface of the overhang portion extending laterally from the insertion shaft; the strike tip is attached to the head portion of the support body and the base is provided with a bore into which the insertion shaft is shrink fitted; the base has an external surface adjacent the bore and overhang portion of the head portion is configured to extend over at least an area of the external surface operative to shield the area from wear when in use.

    摘要翻译: 一种拾取工具,其包括超硬敲击尖端,基部和整体硬质合金支撑体,该主体包括具有突出部分的头部部分和从头部部分延伸的插入轴,所述突出部分的表面从插入部分横向延伸 轴; 撞击尖端附接到支撑体的头部,并且基部设置有孔,插入轴被收缩配合到该孔中; 基部具有邻近孔的外表面,并且头部的突出部分构造成在外表面的至少一个区域上延伸,以在使用时屏蔽该区域免受磨损。

    TIPS FOR PICK TOOLS AND PICK TOOLS COMPRISING SAME
    5.
    发明公开
    TIPS FOR PICK TOOLS AND PICK TOOLS COMPRISING SAME 有权
    选择工具和选择包含相同工具的提示

    公开(公告)号:EP2737176A2

    公开(公告)日:2014-06-04

    申请号:EP12741310.2

    申请日:2012-07-25

    摘要: Tips for pick tools and pick tools comprising same are provided. The tip comprises an impact structure formed joined at a non-planar boundary surface of a substrate. The boundary surface includes a depression. The impact structure comprises super-hard material and has a working end including an apex opposite the depression. The boundary surface of the substrate comprises a ridge at the periphery of the depression and a generally tapered circumferential region depending away from the ridge towards a side of the tip, a lowest point of the depression being directly opposite the apex.

    摘要翻译: 提供了拾取工具和拾取工具的提示。 尖端包括形成在基底的非平面边界表面处接合的冲击结构。 边界表面包括凹陷。 冲击结构包括超硬材料并且具有包括与凹陷相对的顶点的工作端。 衬底的边界表面包括在凹陷的周边处的脊和大体上锥形的周向区域,该周向区远离脊朝向尖端的一侧,凹陷的最低点与尖端直接相对。