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    METHODS OF FORMING EARTH-BORING TOOLS USING GEOMETRIC COMPENSATION AND TOOLS FORMED BY SUCH METHODS
    4.
    发明申请
    METHODS OF FORMING EARTH-BORING TOOLS USING GEOMETRIC COMPENSATION AND TOOLS FORMED BY SUCH METHODS 有权
    使用这种方法形成的几何补偿和工具形成地球工具的方法

    公开(公告)号：US20090301786A1

    公开(公告)日：2009-12-10

    申请号：US12133245

    申请日：2008-06-04

    申请人： Redd H. Smith ,  John H. Stevens ,  James L. Duggan ,  Nicholas J. Lyons ,  Jimmy W. Eason ,  Oliver Matthews, III

    发明人： Redd H. Smith ,  John H. Stevens ,  James L. Duggan ,  Nicholas J. Lyons ,  Jimmy W. Eason ,  Oliver Matthews, III

    IPC分类号： E21B10/00 ,  B21K5/04

    CPC分类号： E21B10/00

    摘要： Geometric compensation techniques are used to improve the accuracy by which features may be located on drill bits formed using particle compaction and sintering processes. In some embodiments, a positional error to be exhibited by at least one feature in a less than fully sintered bit body upon fully sintering the bit body is predicted and the at least one feature is formed on the less than fully sintered bit body at a location at least partially determined by the predicted positional error. In other embodiments, bit bodies of earth-boring rotary drill bits are designed to include a design drilling profile and a less than fully sintered bit body is formed including a drilling profile having a shape differing from a shape of the design drilling profile. Less than fully sintered bit bodies of earth-boring rotary drill bits are formed using such methods.

    摘要翻译： 使用几何补偿技术来提高使用粒子压实和烧结过程形成的钻头上的特征可以确定的精度。 在一些实施例中，预测了在完全烧结钻头体时，小于完全烧结的钻头体中的至少一个特征所呈现的位置误差，并且在位于不到完全烧结的钻头体的位置上形成至少一个特征 至少部分地由预测的位置误差确定。 在其它实施例中，钻孔旋转钻头的钻头体被设计成包括设计钻孔剖面，并且形成的钻孔轮廓小于完全烧结的钻头体，其具有与设计钻削剖面形状不同的形状。 使用这种方法形成小于钻孔旋转钻头的完全烧结钻头体。

    Methods of forming earth-boring tools using geometric compensation and tools formed by such methods
    5.
    发明授权
    Methods of forming earth-boring tools using geometric compensation and tools formed by such methods 有权
    使用几何补偿和这种方法形成的工具形成钻孔工具的方法

    公开(公告)号：US08079429B2

    公开(公告)日：2011-12-20

    申请号：US12133245

    申请日：2008-06-04

    申请人： Redd H. Smith ,  John H. Stevens ,  James L. Duggan ,  Nicholas J. Lyons ,  Jimmy W. Eason ,  Oliver Matthews, III

    发明人： Redd H. Smith ,  John H. Stevens ,  James L. Duggan ,  Nicholas J. Lyons ,  Jimmy W. Eason ,  Oliver Matthews, III

    IPC分类号： E21B10/36 ,  B21K5/04

    CPC分类号： E21B10/00

    摘要： Geometric compensation techniques are used to improve the accuracy by which features may be located on drill bits formed using particle compaction and sintering processes. In some embodiments, a positional error to be exhibited by at least one feature in a less than fully sintered bit body upon fully sintering the bit body is predicted and the at least one feature is formed on the less than fully sintered bit body at a location at least partially determined by the predicted positional error. In other embodiments, bit bodies of earth-boring rotary drill bits are designed to include a design drilling profile and a less than fully sintered bit body is formed including a drilling profile having a shape differing from a shape of the design drilling profile. Less than fully sintered bit bodies of earth-boring rotary drill bits are formed using such methods.

    摘要翻译： 使用几何补偿技术来提高使用粒子压实和烧结过程形成的钻头上的特征可以确定的精度。 在一些实施例中，预测了在完全烧结钻头体时，小于完全烧结的钻头体中的至少一个特征所呈现的位置误差，并且在位于不到完全烧结的钻头体的位置上形成至少一个特征 至少部分地由预测的位置误差确定。 在其它实施例中，钻孔旋转钻头的钻头体被设计成包括设计钻孔剖面，并且形成的钻孔轮廓小于完全烧结的钻头体，其具有与设计钻削剖面形状不同的形状。 使用这种方法形成小于钻孔旋转钻头的完全烧结钻头体。

    METHODS OF FORMING EARTH-BORING ROTARY DRILL BITS
    6.
    发明申请
    METHODS OF FORMING EARTH-BORING ROTARY DRILL BITS 审中-公开
    形成地球旋转钻头的方法

    公开(公告)号：US20100276205A1

    公开(公告)日：2010-11-04

    申请号：US12831608

    申请日：2010-07-07

    申请人： James A. Oxford ,  Jimmy W. Eason ,  Redd H. Smith ,  John H. Stevens ,  Nicholas J. Lyons

    发明人： James A. Oxford ,  Jimmy W. Eason ,  Redd H. Smith ,  John H. Stevens ,  Nicholas J. Lyons

    IPC分类号： E21B10/14 ,  B22F7/04 ,  B22F1/00

    CPC分类号： E21B10/00 ,  B22F7/062 ,  B22F7/08 ,  B22F2003/245 ,  B22F2005/001 ,  B22F2005/002 ,  B22F2998/10 ,  C22C29/08 ,  E21B10/62 ,  B22F3/1021 ,  B22F3/162

    摘要： Methods of forming earth-boring rotary drill bits include providing a bit body, providing a shank that is configured for attachment to a drill string, and attaching the shank to the bit body. Providing a bit body includes providing a green powder component having a first region having a first composition and a second region having a second, different composition, and at least partially sintering the green powder component. Other methods include providing a powder mixture, pressing the powder mixture to form a green component, and sintering the green component to a final density. A shank is provided that includes an aperture, and a feature is machined in a surface of the bit body. The aperture is aligned with the feature, and a retaining member is inserted through the aperture. An earth-boring bit includes a bit body comprising a particle-matrix composite material including a plurality of hard particles dispersed throughout a matrix material. A shank is attached to the bit body using a retaining member.

    摘要翻译： 形成钻孔旋转钻头的方法包括提供钻头体，提供构造成用于附接到钻柱的柄，以及将柄连接到钻头体上。 提供有点体包括提供具有第一组分的第一区域和具有第二不同组成的第二区域并且至少部分地烧结绿色粉末组分的绿色粉末组分。 其他方法包括提供粉末混合物，挤压粉末混合物以形成绿色组分，并将绿色组分烧结至最终密度。 提供了一种柄，其包括孔，并且特征被加工在钻头体的表面中。 孔与该特征对准，并且保持构件插入穿过该孔。 一种钻孔钻头包括一个包括一颗粒基复合材料的钻头体，该复合材料包括分散在基体材料中的多个硬颗粒。 使用保持构件将柄连接到钻头体上。

    Methods of forming earth-boring rotary drill bits
    7.
    发明授权
    Methods of forming earth-boring rotary drill bits 有权
    形成钻孔旋转钻头的方法

    公开(公告)号：US07802495B2

    公开(公告)日：2010-09-28

    申请号：US11271153

    申请日：2005-11-10

    申请人： James A. Oxford ,  Jimmy W. Eason ,  Redd H. Smith ,  John H. Stevens ,  Nicholas J. Lyons

    发明人： James A. Oxford ,  Jimmy W. Eason ,  Redd H. Smith ,  John H. Stevens ,  Nicholas J. Lyons

    IPC分类号： B21K5/04 ,  E21B10/54

    CPC分类号： E21B10/00 ,  B22F7/062 ,  B22F7/08 ,  B22F2003/245 ,  B22F2005/001 ,  B22F2005/002 ,  B22F2998/10 ,  C22C29/08 ,  E21B10/62 ,  B22F3/1021 ,  B22F3/162

    摘要： Methods of forming earth-boring rotary drill bits include providing a bit body, providing a shank that is configured for attachment to a drill string, and attaching the shank to the bit body. Providing a bit body includes providing a green powder component having a first region having a first composition and a second region having a second, different composition, and at least partially sintering the green powder component. Other methods include providing a powder mixture, pressing the powder mixture to form a green component, and sintering the green component to a final density. A shank is provided that includes an aperture, and a feature is machined in a surface of the bit body. The aperture is aligned with the feature, and a retaining member is inserted through the aperture. An earth-boring bit includes a bit body comprising a particle-matrix composite material including a plurality of hard particles dispersed throughout a matrix material. A shank is attached to the bit body using a retaining member.

    摘要翻译： 形成钻孔旋转钻头的方法包括提供钻头体，提供构造成用于附接到钻柱的柄，以及将柄连接到钻头体上。 提供有点体包括提供具有第一组分的第一区域和具有第二不同组成的第二区域并且至少部分地烧结绿色粉末组分的绿色粉末组分。 其他方法包括提供粉末混合物，挤压粉末混合物以形成绿色组分，并将绿色组分烧结至最终密度。 提供了一种柄，其包括孔，并且特征被加工在钻头体的表面中。 孔与该特征对准，并且保持构件插入穿过该孔。 一种钻孔钻头包括一个包括一颗粒基复合材料的钻头体，该复合材料包括分散在基体材料中的多个硬颗粒。 使用保持构件将柄连接到钻头体上。

    Bonding agents for improved sintering of earth-boring tools, methods of forming earth-boring tools and resulting structures
    8.
    发明授权
    Bonding agents for improved sintering of earth-boring tools, methods of forming earth-boring tools and resulting structures 有权
    用于改善钻孔工具烧结的粘结剂，形成钻孔工具和所得结构的方法

    公开(公告)号：US08268452B2

    公开(公告)日：2012-09-18

    申请号：US11831814

    申请日：2007-07-31

    申请人： Nicholas J. Lyons ,  Jimmy W. Eason ,  Redd H. Smith ,  John H. Stevens

    发明人： Nicholas J. Lyons ,  Jimmy W. Eason ,  Redd H. Smith ,  John H. Stevens

    IPC分类号： B32B15/04 ,  B32B15/16 ,  B32B9/00 ,  B22F7/00 ,  B22F7/06 ,  E21B10/00 ,  E21B10/08 ,  E21B10/36

    CPC分类号： E21B10/567 ,  B22F7/062 ,  B22F2005/001 ,  B22F2005/002 ,  Y10T428/12229 ,  Y10T428/12493 ,  Y10T428/12896 ,  Y10T428/12944

    摘要： Methods for forming earth-boring tools include providing a metal or metal alloy bonding agent at an interface between a first element and a second element and sintering the first element, the second element, and the boding agent to form a bond between the first element and the second element at the interface. The methods may be used, for example, to bond together portions of a body of an earth-boring tool (which may facilitate, for example, the formation of cutting element pockets) or to bond cutting elements to a body of an earth-boring tool (e.g., a bit body of a fixed-cutter earth-boring drill bit or a cone of a roller cone earth-boring drill bit). At least partially formed earth-boring tools include a metal or metal alloy bonding agent at an interface between two or more elements, at least one of which may comprise a green or brown structure.

    摘要翻译： 用于形成钻孔工具的方法包括在第一元件和第二元件之间的界面处提供金属或金属合金粘结剂，并烧结第一元件，第二元件和引导剂以形成第一元件和 接口的第二个元素。 这些方法可以用于例如将钻孔工具的主体的部分（其可以促进例如切割元件凹坑的形成）或将切割元件结合到钻孔的主体上 工具（例如，固定刀具钻孔钻头的一个主体或滚子锥形钻孔钻头的锥体）。 至少部分形成的钻孔工具在两个或更多个元件之间的界面处包括金属或金属合金粘合剂，其中至少一个可以包括绿色或棕色结构。

    BONDING AGENTS FOR IMPROVED SINTERING OF EARTH-BORING TOOLS, METHODS OF FORMING EARTH-BORING TOOLS AND RESULTING STRUCTURES
    9.
    发明申请
    BONDING AGENTS FOR IMPROVED SINTERING OF EARTH-BORING TOOLS, METHODS OF FORMING EARTH-BORING TOOLS AND RESULTING STRUCTURES 有权
    用于改进接地工具烧结的接合剂，形成接地工具和结构的方法

    公开(公告)号：US20090031863A1

    公开(公告)日：2009-02-05

    申请号：US11831814

    申请日：2007-07-31

    申请人： Nicholas J. Lyons ,  Jimmy W. Eason ,  Redd H. Smith ,  John H. Stevens

    发明人： Nicholas J. Lyons ,  Jimmy W. Eason ,  Redd H. Smith ,  John H. Stevens

    IPC分类号： B21K5/04

    CPC分类号： E21B10/567 ,  B22F7/062 ,  B22F2005/001 ,  B22F2005/002 ,  Y10T428/12229 ,  Y10T428/12493 ,  Y10T428/12896 ,  Y10T428/12944

    摘要： Methods for forming earth-boring tools include providing a metal or metal alloy bonding agent at an interface between a first element and a second element and sintering the first element, the second element, and the boding agent to form a bond between the first element and the second element at the interface. The methods may be used, for example, to bond together portions of a body of an earth-boring tool (which may facilitate, for example, the formation of cutting element pockets) or to bond cutting elements to a body of an earth-boring tool (e.g., a bit body of a fixed-cutter earth-boring drill bit or a cone of a roller cone earth-boring drill bit). At least partially formed earth-boring tools include a metal or metal alloy bonding agent at an interface between two or more elements, at least one of which may comprise a green or brown structure.

    摘要翻译： 用于形成钻孔工具的方法包括在第一元件和第二元件之间的界面处提供金属或金属合金粘结剂，并烧结第一元件，第二元件和引导剂以形成第一元件和 接口的第二个元素。 这些方法可以用于例如将钻孔工具的主体的部分（其可以促进例如切割元件凹坑的形成）或将切割元件接合到地球钻孔的主体上 工具（例如，固定刀具钻孔钻头的一个主体或滚子锥形钻孔钻头的锥体）。 至少部分形成的钻孔工具在两个或更多个元件之间的界面处包括金属或金属合金粘合剂，其中至少一个可以包括绿色或棕色结构。

    Cemented tungsten carbide rock bit cone
    10.
    发明授权
    Cemented tungsten carbide rock bit cone 有权
    水泥碳化钨岩石钻头

    公开(公告)号：US08043555B2

    公开(公告)日：2011-10-25

    申请号：US12632371

    申请日：2009-12-07

    申请人： Redd H. Smith ,  Trevor Burgess ,  Jimmy W. Eason

    发明人： Redd H. Smith ,  Trevor Burgess ,  Jimmy W. Eason

    IPC分类号： C22C1/05 ,  C22C29/00

    CPC分类号： E21B10/50 ,  E21B10/46

    摘要： An earth-boring bit has a steel body and bearing pin for rotatably supporting a cone. The cone has an exterior surface containing rows of cutting elements. The cone and cutting elements are formed of cemented tungsten carbide. The cone may be manufactured by applying pressure to a mixture of hard particles and metal alloy powder to form a billet, then machining the billet to a desired over-sized conical shaped product. Then the conical-shaped product is liquid-phase sintered to a desired density, which causes shrinking to the desired final shape.

    摘要翻译： 钻头具有用于可旋转地支撑锥体的钢体和轴承销。 锥体具有包含一排切割元件的外表面。 锥形和切割元件由粘结碳化钨形成。 可以通过向硬颗粒和金属合金粉末的混合物施加压力以形成坯料，然后将坯料机加工成期望的大尺寸锥形产品来制造锥体。 然后，圆锥形产品被液相烧结至所需的密度，这导致收缩到期望的最终形状。