IMPROVEMENTS ON ROLLING CUTTER STABILITY
    1.
    发明申请

    公开(公告)号:US20180283106A1

    公开(公告)日:2018-10-04

    申请号:US15764002

    申请日:2016-09-21

    IPC分类号: E21B10/56 E21B10/42

    摘要: A cutting element includes a cutting end extending a depth from a cutting face to an interface surface opposite from the cutting face, and a spindle, the spindle axially separated from the cutting end by a transition region. The spindle has a spindle diameter measured between a spindle side surface, which is less than a cutting end diameter. A guide length, measured from a point of transition to the transition region to a retention feature, is longer than 75% of a total length of the spindle.

    INNOVATIVE CUTTING ELEMENT AND CUTTING STRUCTURE USING SAME

    公开(公告)号:US20160290057A1

    公开(公告)日:2016-10-06

    申请号:US15069788

    申请日:2016-03-14

    摘要: A cutting tool is disclosed that includes a tool body, a plurality of cutting element support structures extending from the tool body, at least one slot formed in at least one of the cutting element support structures, a cutting element having a diamond shearing element with a plurality of surfaces, and at least one mechanical retention mechanism adjacent to the cutting element. Each cutting element support structure has a leading face, a top side, and a trailing face, and the slot has two side surfaces, each side surface terminating at the leading face and top side of the cutting element support structure. Each surface of the cutting element has two dimensional values, wherein the cutting element is positioned in the at least one slot such that a plane in which the shortest dimensional value lies intersects the slot side surfaces.

    PDC BITS HAVING ROLLING CUTTERS AND USING MIXED CHAMFERS
    4.
    发明申请
    PDC BITS HAVING ROLLING CUTTERS AND USING MIXED CHAMFERS 审中-公开
    具有滚动切割机和混合切割机的PDC部件

    公开(公告)号:US20140124270A1

    公开(公告)日:2014-05-08

    申请号:US14070125

    申请日:2013-11-01

    IPC分类号: E21B10/14

    摘要: A cutting tool cutting tool may include a tool body having a plurality of blades extending radially therefrom, a plurality of rotatable cutting elements having a first chamfer mounted on at least one of the plurality of blades, and a plurality of non-rotatable cutting elements having a second, distinct chamfer mounted on at least one the plurality of blades.

    摘要翻译: 切割工具切割工具可以包括具有从其径向延伸的多个叶片的工具主体,多个可旋转切割元件,其具有安装在多个叶片中的至少一个上的第一倒角,以及多个不可旋转的切割元件,其具有 安装在至少一个所述多个叶片上的第二个不同的倒角。

    COMPOSITE CUTTER SUBSTRATE TO MITIGATE RESIDUAL STRESS
    7.
    发明申请
    COMPOSITE CUTTER SUBSTRATE TO MITIGATE RESIDUAL STRESS 审中-公开
    复合切割器底板减轻残余应力

    公开(公告)号:US20140223836A1

    公开(公告)日:2014-08-14

    申请号:US14257096

    申请日:2014-04-21

    IPC分类号: E21B10/573

    摘要: A cutting element may include a polycrystalline diamond layer and a reduced-CTE substrate comprising diamond particles disposed in a matrix material, wherein the diamond particles have a contiguity of 15% or less. Also, a cutting element may include a polycrystalline diamond layer and a reduced-CTE substrate comprising a matrix material, at least one diamond-filled region, and embedded diamond particles.

    摘要翻译: 切割元件可以包括多晶金刚石层和包含设置在基体材料中的金刚石颗粒的还原CTE基底,其中金刚石颗粒具有15%或更小的邻接性。 此外,切割元件可以包括多晶金刚石层和包含基体材料,至少一个金刚石填充区域和嵌入金刚石颗粒的还原CTE基底。

    METHOD OF USING SPRING LOADED BLOCKER TO RETAIN ROLLING CUTTERS OR MECHANICAL LOCK CUTTERS
    8.
    发明申请
    METHOD OF USING SPRING LOADED BLOCKER TO RETAIN ROLLING CUTTERS OR MECHANICAL LOCK CUTTERS 有权
    使用弹簧加载阻塞器保留滚动切割机或机械锁定切割器的方法

    公开(公告)号:US20140131118A1

    公开(公告)日:2014-05-15

    申请号:US14081593

    申请日:2013-11-15

    IPC分类号: E21B10/55

    摘要: A cutting element assembly may include a sleeve; an inner cutting element in the sleeve; and a blocker retained in the sleeve with at least one locking device and covering a portion of a cutting face of the inner cutting element. Cutting tools may include a tool body; a plurality of blades extending radially from the tool body, each blade comprising a leading face and a trailing face; a plurality of cutter pockets on the plurality of blades; at least one cutting element in one of the cutter pockets; and at least one blocker positioned adjacent to a cutting face of the at least one cutting element and the leading face of the blade, the blocker being retained to the cutter pocket with at least one locking device.

    摘要翻译: 切割元件组件可以包括套筒; 套筒中的内切割元件; 以及阻挡件,其与至少一个锁定装置保持在所述套筒中并且覆盖所述内切割元件的切割面的一部分。 切割工具可以包括工具主体; 多个叶片,其从所述工具主体径向延伸,每个叶片包括前表面和后表面; 所述多个刀片上的多个切割器凹坑; 至少一个切割元件位于一个切割器凹口中; 以及至少一个阻挡件,其邻近所述至少一个切割元件的切割面和所述刀片的前表面定位,所述阻挡件通过至少一个锁定装置保持在所述刀具槽中。

    Matrix tool bodies with erosion resistant and/or wear resistant matrix materials

    公开(公告)号:US10737367B2

    公开(公告)日:2020-08-11

    申请号:US14559361

    申请日:2014-12-03

    摘要: Methods for manufacturing a matrix tool body comprising placing a first matrix material within a first region of a mold cavity proximate a surface of the mold. A second matrix material may be placed within a second region of the mold cavity positioned inwardly of the first matrix material. The first matrix material and the second matrix material comprise a plurality of hard particles. The plurality of hard particles of the second matrix material have a median particle size that is less than the median particle size of the first matrix material. The plurality of hard particles of the first matrix material and the second matrix material are infiltrated with an infiltration binder to form the tool body. Also included are tool bodies having one or more regions proximate a surface of the tool body comprising an erosion resistant matrix material and/or a wear resistant matrix material.