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    Drill bits and other articles of manufacture including a layer-manufactured shell integrally secured to a cast structure and methods of fabricating same
    1.
    发明授权
    Drill bits and other articles of manufacture including a layer-manufactured shell integrally secured to a cast structure and methods of fabricating same 有权
    钻头和其他制品，包括一体地固定到铸造结构的层制造的壳体及其制造方法

    公开(公告)号：US06454030B1

    公开(公告)日：2002-09-24

    申请号：US09236971

    申请日：1999-01-25

    申请人： Sidney L. Findley ,  Trent N. Butcher ,  Gordon A. Tibbits

    发明人： Sidney L. Findley ,  Trent N. Butcher ,  Gordon A. Tibbits

    IPC分类号： E21B1002

    CPC分类号： E21B10/55 ,  B22F7/06 ,  B22F7/062 ,  B22F2005/001 ,  B22F2998/00 ,  B22F2998/10 ,  B22F2999/00 ,  B33Y80/00 ,  Y02P10/295 ,  B22F3/005 ,  B22F5/10 ,  B22F3/1055 ,  B22F3/26

    摘要： A rotary-type earth-boring drill bit including a layer-manufactured, substantially hollow bit crown and an integral bit interior and bit gage. The bit interior and bit gage may be formed of a particulate material infiltrated with an infiltrant material. A particulate material of the bit crown may be integrally infiltrated with the particulate material of the bit interior and bit gage. Alternatively, the bit interior and bit gage may comprise a single cast material. The particulate material of the bit crown may be infiltrated with the cast material of the bit interior and bit gage. A method of fabricating the drill bit includes employing known layered-manufacturing techniques to fabricate the bit crown, positioning a bit gage mold adjacent the bit crown, and disposing a core material within an interior of the bit crown and a cavity of the bit gage mold. A mold that may be employed to fabricate the drill bit includes an initially conforming mold region, in which the pre-fabricated bit crown may be disposed, and a second, substantially rigid mold region including a cavity to define the gage of the drill bit. Preferably, the conforming mold region is formed of a non-wettable, granular material.

    摘要翻译： 一种旋转式钻孔钻头，其包括层制造的，基本上为中空的钻头牙冠和一体的钻头内部和钻头。 钻头内部和位量可以由渗透材料渗透的颗粒材料形成。 钻头顶部的颗粒材料可以与钻头内部和钻头量具的颗粒材料整体渗透。 或者，钻头内部和钻头量规可以包括单个铸造材料。 钻头顶部的颗粒材料可以用钻头内部和钻头量规的铸造材料渗透。 一种制造钻头的方法包括采用已知的分层制造技术来制造钻头牙冠，将钻头牙冠定位在钻头牙冠附近，并将芯材料设置在钻头牙冠的内部和钻头盖模具的腔内 。 可用于制造钻头的模具包括最初配合的模具区域，其中可以设置预制的钻头顶部，以及包括用于限定钻头的量规的腔的第二基本上刚性的模具区域。 优选地，适形模具区域由不可润湿的颗粒材料形成。

    Bit manufacturing method
    3.
    发明授权
    Bit manufacturing method 失效
    位制造方法

    公开(公告)号：US06073518A

    公开(公告)日：2000-06-13

    申请号：US719254

    申请日：1996-09-24

    申请人： Jacob T. C. Chow ,  Sidney L. Findley ,  David P. Beacco ,  Lorenzo G. Lovato

    发明人： Jacob T. C. Chow ,  Sidney L. Findley ,  David P. Beacco ,  Lorenzo G. Lovato

    IPC分类号： B22F3/12 ,  B22F7/06 ,  E21B10/46 ,  B22F3/00

    CPC分类号： E21B10/46 ,  B22D19/06 ,  B22D19/14 ,  B22D23/06 ,  B22F3/1275 ,  B22F7/06 ,  B22F2005/001 ,  B22F2998/00 ,  B22F2999/00

    摘要： A method of manufacturing a drill bit or other drilling-related structure used for drilling into subterranean formations is herein disclosed where a blank is formed by placing a ferrous metal powder such as steel into a mold, sintering the ferrous metal powder to form a preformed blank, packing an abrasion- and erosion-resistant material such as tungsten carbide powder around the preformed blank, and infiltrating the preformed blank and tungsten carbide with a common binder such as a copper-based binder. For some materials, during sintering, the preformed blank may shrink in size relative to the mold enough to provide space between the mold and the preformed blank for a layer of abrasion- and erosion-resistant material. With other materials, a separate blank mold may be used to form the sintered blank which can then be inserted into the mold for infiltration. Accordingly, the same or substantially similarly configured mold can be used to form the preformed blank and the finished drill bit or drilling-related structure having a sintered steel core and a tungsten carbide shell infiltrated with a copper-based binder.

    摘要翻译： 本文公开了一种制造用于钻入地下地层的钻头或其他钻井相关结构的方法，其中通过将诸如钢的黑色金属粉末放置在模具中形成坯料，烧结黑色金属粉末以形成预成型坯料 在预制坯料周围包裹耐磨损和耐腐蚀的材料，例如碳化钨粉末，并用普通粘合剂例如铜基粘合剂渗透预制坯料和碳化钨。 对于一些材料，在烧结期间，预成形坯料可以相对于模具尺寸收缩足以在模具和预成型坯料之间提供用于耐磨和耐腐蚀材料层的空间。 使用其它材料，可以使用单独的坯模来形成烧结坯料，然后将其插入模具以进行渗透。 因此，可以使用相同或基本上相似配置的模具来形成预成型坯料和成品钻头或钻孔相关结构，其具有浸渍有铜基粘合剂的烧结钢芯和碳化钨外壳。

    Method of manufacturing bits, bit components and other articles of manufacture
    4.
    发明授权
    Method of manufacturing bits, bit components and other articles of manufacture 失效
    制造钻头，钻头零件和其他制品的方法

    公开(公告)号：US06209420B1

    公开(公告)日：2001-04-03

    申请号：US09135522

    申请日：1998-08-17

    申请人： Trent N. Butcher ,  Sidney L. Findley ,  Redd H. Smith

    发明人： Trent N. Butcher ,  Sidney L. Findley ,  Redd H. Smith

    IPC分类号： B21K504

    CPC分类号： E21B10/55 ,  B22F3/1055 ,  B22F3/1275 ,  B22F3/26 ,  B22F7/06 ,  B22F2005/001 ,  B22F2998/00 ,  B22F2999/00 ,  B29C64/153 ,  B29C64/165 ,  B33Y10/00 ,  B33Y80/00 ,  E21B10/46 ,  E21B10/567 ,  G05B2219/49011 ,  Y02P10/295 ,  B22F7/062

    摘要： A method of fabricating rotary-type drill bits, drilling-related structures, and other articles of manufacture. The method includes fabricating a machinable matrix, machining the matrix, and dispersing a binder material throughout the matrix. The matrix of the rotary-type drill bit may be fabricated by layered-manufacturing techniques or by disposing a particulate or powdered material into a mold and binding the particles together with a resin or by sintering. The matrix may have the desired dimensions and features, the approximate dimensions and features, or lack desired dimensions or features of a drilling-related structure or other article of manufacture. The matrix is machined to correct any anisotropies or imperfections of the matrix, to refine features of the matrix, or to define the features in the matrix. The machined matrix may be infiltrated with a binder material to define a drill bit body.

    摘要翻译： 一种制造旋转式钻头，钻井相关结构和其它制品的方法。 该方法包括制造可机加工的基体，机加工基体，以及将粘合剂材料分散在整个基质中。 旋转型钻头的基体可以通过分层制造技术或通过将颗粒或粉末材料设置在模具中并将颗粒与树脂结合或通过烧结来制造。 基体可以具有期望的尺寸和特征，近似尺寸和特征，或者缺乏与钻孔相关的结构或其他制品的期望的尺寸或特征。 加工矩阵以校正矩阵的各向异性或不完美性，以改善矩阵的特征，或者定义矩阵中的特征。 加工的基质可以用粘合剂材料渗透以限定钻头体。

    Structure for use in drilling a subterranean formation
    6.
    发明授权
    Structure for use in drilling a subterranean formation 失效
    用于钻探地层的结构

    公开(公告)号：US6089123A

    公开(公告)日：2000-07-18

    申请号：US61569

    申请日：1998-04-16

    申请人： Jacob T. C. Chow ,  Sidney L. Findley ,  David P. Beacco ,  Lorenzo G. Lovato

    发明人： Jacob T. C. Chow ,  Sidney L. Findley ,  David P. Beacco ,  Lorenzo G. Lovato

    IPC分类号： B22F3/12 ,  B22F7/06 ,  E21B10/46 ,  B21K5/04

    CPC分类号： E21B10/46 ,  B22D19/06 ,  B22D19/14 ,  B22D23/06 ,  B22F3/1275 ,  B22F7/06 ,  B22F2005/001 ,  B22F2998/00 ,  B22F2999/00

    摘要： A method of manufacturing a drill bit or other drilling-related structure used for drilling into subterranean formations is herein disclosed where a blank is formed by placing a ferrous metal powder such as steel into a mold, sintering the ferrous metal powder to form a preformed blank, packing an abrasion- and erosion-resistant material such as tungsten carbide powder around the preformed blank, and infiltrating the preformed blank and tungsten carbide with a common binder such as a copperbased binder. For some materials, during sintering, the preformed blank may shrink in size relative to the mold enough to provide space between the mold and the preformed blank for a layer of abrasion- and erosion-resistant material. With other materials, a separate blank mold may be used to form the sintered blank which can then be inserted into the mold for infiltration. Accordingly, the same or substantially similarly configured mold can be used to form the preformed blank and the finished drill bit or drilling-related structure having a sintered steel core and a tungsten carbide shell infiltrated with a copper-based binder.

    摘要翻译： 本文公开了一种制造用于钻入地下地层的钻头或其他钻井相关结构的方法，其中通过将诸如钢的黑色金属粉末放置在模具中形成坯料，烧结黑色金属粉末以形成预成型坯料 在预制坯料周围包裹耐磨损和耐腐蚀的材料，例如碳化钨粉末，并用普通粘合剂如铜基粘合剂渗透预制坯料和碳化钨。 对于一些材料，在烧结期间，预成形坯料可以相对于模具尺寸收缩足以在模具和预成型坯料之间提供用于耐磨和耐腐蚀材料层的空间。 使用其它材料，可以使用单独的坯模来形成烧结坯料，然后将其插入模具以进行渗透。 因此，可以使用相同或基本上相似配置的模具来形成预成型坯料和成品钻头或钻孔相关结构，其具有浸渍有铜基粘合剂的烧结钢芯和碳化钨外壳。