DISK CUTTER
    51.
    发明申请
    DISK CUTTER 审中-公开

    公开(公告)号:WO2021110500A1

    公开(公告)日:2021-06-10

    申请号:PCT/EP2020/083296

    申请日:2020-11-25

    Inventor: LU, Shuo

    Abstract: This disclosure relates to a disk cutter (18) comprising a cutter body, a plurality of tool holders (24) and a plurality of cutting elements (22) mounted to the tool holders. The tool holders and cutting elements are provided in at least one set about the cutter body, each set comprising two or more tool holders and two or more cutting elements arranged in a p re-determined sequence of configurations.

    A CUTTING ELEMENT AND METHODS OF MAKING SAME
    53.
    发明申请

    公开(公告)号:WO2020245223A1

    公开(公告)日:2020-12-10

    申请号:PCT/EP2020/065389

    申请日:2020-06-03

    Abstract: A cutting element (30) includes a substrate (40) having a peripheral side edge, the peripheral side edge having an associated radius of curvature; and a body of superhard polycrystalline material bonded to the substrate along an interface, the body of superhard polycrystalline material (39) having a peripheral side edge and a longitudinal axis. The body of superhard polycrystalline material (39) has a working surface (54); and a plurality of spaced apart cutting edges extending to the working surface (54) through respective chamfer portions (62), the cutting edges (61, 76) being spaced around the working surface by a further region. The cutting edges (61, 76) have an associated radius of curvature, the radius of curvature of one or more of the cutting edges being less than the radius of curvature of the substrate. A method of making such a cutting element is also disclosed.

    A CUTTING ELEMENT AND METHODS OF MAKING SAME
    54.
    发明申请

    公开(公告)号:WO2020245165A1

    公开(公告)日:2020-12-10

    申请号:PCT/EP2020/065302

    申请日:2020-06-03

    Abstract: A cutting element (30) includes a substrate (40); and a body of superhard polycrystalline material (34) bonded to the substrate (40) along an interface, the body of superhard polycrystalline material having a peripheral side edge (42). The body of superhard polycrystalline material has a cutting surface (34); a plurality of spaced apart cutting edges (36) extending to the cutting surface (34) through respective chamfer portions (38), the cutting edges being spaced around the peripheral side edge; a plurality of recesses/ regions (48) extending from the cutting surface (34) towards the substrate, adjacent cutting edges (36) being spaced apart by a respective one of said recesses/regions (48); and a protrusion or recessed region extending from the cutting surface about a central longitudinal axis of the cutting element. A method of making such a cutting element is also disclosed.

    CUTTER ASSEMBLY AND METHODS FOR MAKING SAME
    55.
    发明申请

    公开(公告)号:WO2020239799A1

    公开(公告)日:2020-12-03

    申请号:PCT/EP2020/064634

    申请日:2020-05-27

    Abstract: A cutter assembly for a cutting tool has a super-hard volume of super-hard material having a proximal end and a distal end and including a cavity; and a cover member. The super- hard volume has a super-hard surface at the distal end including a cutting edge. The cavity has a cavity open end at the distal end. The super-hard surface includes a cavity peripheral area coterminous with the cavity open end and the cover member has a cover peripheral area configured to mate with the cavity peripheral area to allow the cover member to cover the cavity at the cavity open end, the covered cavity providing a housing chamber within the super-hard volume. A method of making a cutter assembly is also disclosed.

    CUTTING ASSEMBLY
    56.
    发明申请
    CUTTING ASSEMBLY 审中-公开

    公开(公告)号:WO2020187428A1

    公开(公告)日:2020-09-24

    申请号:PCT/EP2019/075568

    申请日:2019-09-23

    Abstract: This disclosure relates to a cutting assembly for a rock excavation machine with integrated sensors. The rock excavation machine comprises a base unit, one or more moveable support arms extending from the base unit, a drive spindle rotatably mounted to the or each moveable support arm, and a disk cutter fixed about the drive spindle such that rotation of the drive spindle causes a corresponding rotation of the disk cutter.

    TRACER ASSISTED WEAR DETECTION OF PCD CUTTING ELEMENTS

    公开(公告)号:WO2020141111A1

    公开(公告)日:2020-07-09

    申请号:PCT/EP2019/086685

    申请日:2019-12-20

    Abstract: A cutting element for an earth-boring tool, the cutting element has a substrate; anda body of superhard polycrystalline material bonded to the substrate along an interface. Any one or both of the substrate or the body of superhard polycrystalline material has one or more sealed channels or regions therein, one or more of the regions or channels being arranged to retain a tracer element to provide data relating to a condition of the cutting element.

    POLYCRYSTALLINE DIAMOND CONSTRUCTIONS
    59.
    发明申请

    公开(公告)号:WO2019129716A1

    公开(公告)日:2019-07-04

    申请号:PCT/EP2018/086623

    申请日:2018-12-21

    Abstract: A polycrystalline diamond (PCD) construction has a first region with a first set of one or more strata comprising a first grade of PCD material and a second set of strata comprising a second grade of PCD material. The first set is arranged in an alternating configuration with the second set, the alternating strata being bonded to each other by direct inter-growth of diamond grains. The strata in the first set have a greater average thickness than the strata in the second set. The first grade of PCD material differs from the second in one or more of diamond and metal network compositional ratio, metal elemental composition, or average diamond grain size. One or more of the strata in the first set may have a smaller average diamond grain size than strata in the second region and/or a greater volume percentage of residual catalyst/binder than one or more strata in the second region.

    SUPERHARD CONSTRUCTIONS & METHODS OF MAKING SAME

    公开(公告)号:WO2019129711A1

    公开(公告)日:2019-07-04

    申请号:PCT/EP2018/086593

    申请日:2018-12-21

    Inventor: WANG, Dong

    Abstract: A super hard polycrystalline construction includes a first region having a body of thermally stable polycrystalline super hard material with an exposed surface forming a working surface, and a peripheral side edge. The polycrystalline super hard material has a plurality of intergrown grains of super hard material, a second region forming a substrate to the first region, and a third region interposed between the first and second regions. The third region extends across a surface of the second region along an interface, the third region having a composite material having a first phase comprising a plurality of non-intergrown diamond grains, the majority of said diamond grains having a coating comprising nano-sized cBN particles. There is also disclosed a method of forming such a construction.

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