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    THREE-DIMENSIONAL SURFACE SHAPING OF ROTARY CUTTING TOOL EDGES WITH LASERS
    61.
    发明公开
    THREE-DIMENSIONAL SURFACE SHAPING OF ROTARY CUTTING TOOL EDGES WITH LASERS 审中-公开
    三维曲面成形转位切削工具用激光EDGES

    公开(公告)号：EP2490853A2

    公开(公告)日：2012-08-29

    申请号：EP10825584.5

    申请日：2010-10-20

    Applicant: Kennametal Inc.

    Inventor： GEY, Christoph ,  SAMPATH, Karthik ,  ROSENBERGER, Fabian ,  GEORGE, Stephen

    IPC: B23K26/36 ,  B23K26/00 ,  B23B27/14 ,  B23K101/20

    CPC classification number: B23K26/38 ,  B23K2201/002 ,  Y10T407/19

    Abstract: A method for forming the cutting edge (20, 22) and adjacent contoured surface (S) area of rotary cutting tools (10) utilizing a laser (50) to remove material from the cutting end (18) of the tool (10) to create a predetermined point-by-point geometry is disclosed. Relatively complex surface and edge geometries may be formed by directing a laser beam (L) toward the cutting end (18) of the tool (10) at an angle (?) having a component (CN) that is normal to the surface (S) of the cutting end (18). The laser beam (L) is directed in multiple passes across the surface (S) of the cutting end (18) to remove material and form the desired cutting edge (20, 22) and adjacent three-dimensional contoured surface geometry (S).

    HARDFACING COMPOSITION AND ARTICLE HAVING HARDFACING DEPOSIT
    65.
    发明公开
    HARDFACING COMPOSITION AND ARTICLE HAVING HARDFACING DEPOSIT 审中-公开
    HART涂料组合物和对象，具有硬涂层涂料

    公开(公告)号：EP1945428A2

    公开(公告)日：2008-07-23

    申请号：EP06816157.9

    申请日：2006-10-02

    Applicant: KENNAMETAL INC.

    Inventor： MACLEOD, Moira E.

    IPC: B28D1/04 ,  E21B10/30 ,  E21B10/36 ,  F16L35/00

    CPC classification number: B22F1/0014 ,  B23K35/228 ,  B23K35/327 ,  B23K2201/002 ,  C22C29/08 ,  E21B10/50

    Abstract: A hardfacing composition (32) that includes a plurality of hard particles (54) wherein the hard particles (54) include a mode particle size distribution, one particle size distribution smaller than the mode particle size distribution, and an other particle size distribution larger than the mode particle size distribution. There is an absence of any substantial fluctuations in the particle size distribution between the mode particle size distribution and the one particle size distribution. There is an absence of any substantial fluctuations in the particle size distribution between the mode particle size distribution and the other particle size distribution.

    DRILL BIT HAVING A CHIP BREAKER AND METHOD OF LASER CUTTING A CHIP BREAKER IN A DRILL BIT
    68.
    发明申请
    DRILL BIT HAVING A CHIP BREAKER AND METHOD OF LASER CUTTING A CHIP BREAKER IN A DRILL BIT 审中-公开
    具有断屑器的钻头以及在钻头中激光切割断屑器的方法

    公开(公告)号：WO2017116850A1

    公开(公告)日：2017-07-06

    申请号：PCT/US2016/067765

    申请日：2016-12-20

    Applicant: DIAMOND INNOVATIONS, INC.

    Inventor： DYER, Dwight ,  CARPENTER, Cory ,  MILLER, David

    IPC: B23B51/00

    CPC classification number: B23B51/02 ,  B23B51/00 ,  B23B2226/315 ,  B23B2251/18 ,  B23B2251/48 ,  B23B2260/092 ,  B23K26/362 ,  B23K26/402 ,  B23K2201/002 ,  B23K2203/50

    Abstract: A drill bit for a drill includes at least one flute having a rake face (32) including a flute edge and at least one cutting edge (20, 22) having a profile that extends along at least a portion of a length of the cutting edge, the rake face extending from the cutting edge. A chip breaker (40) formed in the rake face, the chip breaker being a continuous groove located adjacent the cutting edge, the groove having a starting end and an exit end opening into the flute edge, the starting end having a depth that is less than a depth of the exit end of the groove, wherein a shape of the groove at the starting end is different from a shape of the groove at the exit end.

    Abstract translation: 一种用于钻头的钻头包括至少一个具有前刀面（32）的槽纹，所述前刀面（32）包括槽纹边缘和至少一个切削刃（20,22），所述至少一个切削刃具有沿着至少一个 切削刃长度的一部分，前刀面从切削刃延伸。 在前刀面中形成的断屑器（40），断屑器是邻近切削刃的连续凹槽，该凹槽具有开口端和通向凹槽边缘的出口端，起始端的深度小于 比槽的出口端的深度小，其中起始端处的槽的形状不同于出口端处的槽的形状。

    CONNECTION REPLACEMENT FOR A DRILLING MUD MOTOR
    69.
    发明申请
    CONNECTION REPLACEMENT FOR A DRILLING MUD MOTOR 审中-公开
    钻机电机连接更换

    公开(公告)号：WO2016176239A1

    公开(公告)日：2016-11-03

    申请号：PCT/US2016/029421

    申请日：2016-04-27

    Applicant: HUNTING ENERGY SERVICES, INC.

    Inventor： BOWAR, David, A. ,  BATT, Tyler, J. ,  WEBBER, William, Michael

    IPC: B23K31/00

    CPC classification number: B23K31/02 ,  B23B2215/68 ,  B23K2201/002 ,  B23K2201/20 ,  E21B4/02 ,  E21B10/00 ,  E21B10/02

    Abstract: A method for reconditioning a rotary connection of a rotor on a drilling mud rotor. A new rotary connection is machined from a metal blank and is provided with an externally threaded pin end which is subsequently screwed into a mating female threaded opening provided on the rotor body. The new metal connection is welded to the rotor body at an intersection of the connection and selected end of the rotor body. The threaded end of the new connection is threaded a predetermined depth which is selected to bottom out at a selected depth within the mating female threaded opening provided on the rotor body prior to the welding step.

    Abstract translation: 一种用于修复钻井泥浆转子上的转子的旋转连接的方法。 新的旋转连接件由金属坯料加工而成，并具有外螺纹的销端，随后螺纹连接到设置在转子体上的配合内螺纹开口中。 新的金属连接件在转子体的连接和选定端的交点处焊接到转子体上。 新连接件的螺纹端螺纹连接预定的深度，该预定深度在焊接步骤之前被选择为在设置在转子主体上的配合内螺纹开口内的选定深度处最底部。

    CHEMICALLY STRENGTHENED BOND BETWEEN THERMALLY STABLE POLYCRYSTALLINE HARD MATERIALS AND BRAZE MATERIAL
    70.
    发明申请
    CHEMICALLY STRENGTHENED BOND BETWEEN THERMALLY STABLE POLYCRYSTALLINE HARD MATERIALS AND BRAZE MATERIAL 审中-公开
    热稳定的多晶硬质材料与烧结材料之间的化学加强粘结

    公开(公告)号：WO2016105340A1

    公开(公告)日：2016-06-30

    申请号：PCT/US2014/071868

    申请日：2014-12-22

    Applicant: HALLIBURTON ENERGY SERVICES, INC.

    Inventor： SAINI, Gagan ,  LIANG, Qi

    IPC: E21B10/42 ,  E21B10/46 ,  E21B10/62

    CPC classification number: E21B10/5735 ,  B23K1/0008 ,  B23K1/19 ,  B23K35/302 ,  B23K2201/002 ,  B23K2203/52 ,  C04B37/001 ,  C04B2237/361 ,  C04B2237/363 ,  C04B2237/365 ,  E21B10/55 ,  E21B10/567

    Abstract: Chemical methods, optionally in combination with physical methods, may be used to increase the strength of the bond formed by a braze material between a polycrystalline material and a hard composite. Such polycrystalline materials brazed to hard composites may be found in various wellbore tools include drill bit cutters. An exemplary method may include forming a bonding layer on a bonding surface of a polycrystalline material body that comprises a hard material, the bonding surface opposing a contact surface of the polycrystalline material body, and the bonding layer substantially formed by a [111] crystal structure of the hard material, a [100] crystal structure of the hard material, or a combination thereof; and brazing the bonding layer to a hard composite using a braze material.

    Abstract translation: 可以使用化学方法，任选地与物理方法组合，以增加由多晶材料和硬质复合材料之间的钎焊材料形成的粘结强度。 钎焊到硬质复合材料的这种多晶材料可以在各种井眼工具中找到，包括钻头刀具。 一种示例性的方法可以包括在多晶体体的接合面上形成接合层，该结合层包括硬质材料，与多晶材料体的接触表面相对的接合面和基本上由[111]晶体结构形成的接合层 的硬质材料，硬质材料的[100]晶体结构，或其组合; 并使用钎焊材料将粘合层钎焊到硬质复合体上。

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