公开(公告)号：US4618269A

公开(公告)日：1986-10-21

申请号：US777279

申请日：1985-09-18

Applicant: Robert P. Badrak ,  Terry H. Mayo

Inventor： Robert P. Badrak ,  Terry H. Mayo

IPC: B23K9/04 ,  B23K35/32 ,  E21B10/22 ,  F16C33/14 ,  F16C17/10

CPC classification number: F16C33/14 ,  B23K35/32 ,  B23K9/04 ,  E21B10/22 ,  B23K2201/002 ,  F16C2223/46

Abstract: A hardened bearing surface (36, 38, 42, 48, 50, 51 and 52) on a component (14, 16) of a rotary cutter drill bit (10) and the method of forming same. A composite mix (60) of alloy material (56) and base material (54) forms the hardened bearing surface (36, 38, 42, 48, 50, 51 and 52) with the alloy material (56) consisting of at least ten (10) percent of the adjacent base material (54) and of an optimum of around fifty (50) percent. The alloy material (56) of predetermined amounts of predetermined elements is positioned on the base material (54) and a precisely controlled high energy density source, such as a laser beam (58), melts the alloy material (56) and adjacent base material (56) to form the composite mix (60) defining the hardened bearing surface.

Abstract translation: 在旋转切割钻头（10）的部件（14,16）上的硬化轴承表面（36,38,42,48,50,51和52）及其形成方法。 合金材料（56）和基材（54）的复合混合物（60）形成硬化的支承表面（36,38,42,48,50,51和52），合金材料（56）由至少十个 （10）％的相邻基材（54），最佳约为50（50）％。 预定量的预定元素的合金材料（56）位于基底材料（54）上，并且诸如激光束（58）的精确控制的高能量密度源熔化合金材料（56）和相邻的基底材料 （56）以形成限定硬化轴承表面的复合混合物（60）。

公开(公告)号：US4350215A

公开(公告)日：1982-09-21

申请号：US189370

申请日：1980-09-22

Applicant: Robert P. Radtke

Inventor： Robert P. Radtke

IPC: B23K1/008 ,  E21B10/56 ,  E21B10/567 ,  E21B10/62 ,  E21B10/58

CPC classification number: E21B10/567 ,  B23K1/008 ,  E21B10/62 ,  B23K2201/002

Abstract: A drag drill bit includes a plurality of cutter assemblies comprising synthetic polycrystalline diamonds which are held by brazing material within dimensionally controlled pockets formed in the drill bit matrix. The method of manufacturing the bit includes forming the drill bit head by powder metallurgy with a plurality of dimensionally controlled pockets, placing brazing material in communication with each pocket, locating and fixturing a cutter assembly within each pocket by force-fit and brazing the cutter assemblies to the bit head by a furnace cycle.

Abstract translation: 拖曳钻头包括多个切割器组件，其包括合成多晶金刚石，其通过钎焊材料保持在形成在钻头矩阵中的尺寸控制的凹坑中。 制造钻头的方法包括通过粉末冶金形成具有多个尺寸控制的凹穴的钻头头，将钎焊材料放置成与每个凹槽连通，通过强力配合和钎焊切割器组件来定位和固定每个口袋内的切割器组件 通过炉周期到位头。

公开(公告)号：US4229638A

公开(公告)日：1980-10-21

申请号：US564014

申请日：1975-04-01

Applicant: Carl L. Lichte

Inventor： Carl L. Lichte

IPC: B23K15/00 ,  B23K26/24 ,  E21B10/20

CPC classification number: E21B10/20 ,  B23K15/0053 ,  B23K26/24 ,  B23K2201/002

Abstract: A rotary rock bit is formed from at least two individual segments. The individual segments are positioned together and aligned in the proper position for the final assembled bit. The seams between the individual segments are in the form of square-butt type joints and the adjoining segments have surface areas that are in abutting relationship to each other. A beam of energy such as an electron beam or a laser beam is directed into the seams. Relative movement between the beam and segments of the bit causes the beam to traverse the seams and join said individual segments together throughout substantially all of said abutting surface areas.

Abstract translation: 旋转岩石钻头由至少两个单独的段形成。 各个段被定位在一起并对准在最终组装的钻头的适当位置。 单个节段之间的接缝为方形对接型接头的形式，相邻的部分具有彼此邻接关系的表面区域。 诸如电子束或激光束的能量束被引导到接缝中。 所述梁和所述钻头段之间的相对运动导致所述梁穿过所述接缝并且将所述各个段连接在基本上所有所述邻接表面区域中。

公开(公告)号：US4209121A

公开(公告)日：1980-06-24

申请号：US953388

申请日：1978-10-23

Applicant: Alan L. Newcomb

Inventor： Alan L. Newcomb

IPC: B23K15/00 ,  B23K37/04 ,  E21B10/20

CPC classification number: E21B10/20 ,  B23K15/0013 ,  B23K37/04 ,  B23K2201/002

Abstract: A method and apparatus is disclosed for monitoring the gage diameter of a rock bit which utilizes electronic sensing principles. The use of electronic sensing devices provides continuous measurement of the rock bit gage through remote monitoring equipment. The sensing devices monitor the gage of the rock bit during the electron beam welding process to assure that the gage of the rock bit remains within tolerance.

Abstract translation: 公开了一种用于监测利用电子感测原理的岩石钻头的量规直径的方法和装置。 使用电子感测装置可以通过远程监控设备连续测量岩石钻头。 传感装置在电子束焊接过程中监测岩石钻头的量规，以确保岩石钻头的量规保持在公差范围内。

公开(公告)号：US4156123A

公开(公告)日：1979-05-22

申请号：US818144

申请日：1977-07-22

Applicant: John F. Fischer ,  Elton R. Foor

Inventor： John F. Fischer ,  Elton R. Foor

IPC: B23K35/32 ,  E21B10/20 ,  B23K15/00

CPC classification number: E21B10/20 ,  B23K35/325 ,  B23K2201/002

Abstract: Segments of a rock bit are secured together by electron-beam welding. The segments are slightly spaced apart prior to welding by a thin shim of alloying metal such as titanium which improves ductility of the weld and is a strong carbide-former during welding. The shim is positioned between adjacent segments in the region of the crown or dome of the bit. The resulting welded interface is a fine-grain stress-relieved structure with good ductility and resistance to cracking.

Abstract translation: 通过电子束焊接将岩石块的部分固定在一起。 在通过诸如钛的合金金属的薄垫片焊接之前，这些段稍微间隔开来，这改善了焊缝的延展性，并且在焊接期间是强硬的碳化物形成体。 垫片定位在钻头的冠部或圆顶的区域中的相邻节段之间。 所得到的焊接界面是具有良好延展性和抗开裂性的细晶粒应力释放结构。

公开(公告)号：US4054772A

公开(公告)日：1977-10-18

申请号：US574228

申请日：1975-05-05

Applicant: Carl Laurent Lichte

Inventor： Carl Laurent Lichte

IPC: B23K15/00 ,  E21B10/20 ,  B23K9/00

CPC classification number: B23K15/0013 ,  E21B10/20 ,  B23K2201/002 ,  Y10T279/13

Abstract: A positioning system is provided for clamping individual segments of a rock bit together in position for an assembled bit and aligning the seams between the segments with a beam of energy from a welding gun. The segments are moved until the plane of a first seam between segments is coincident with the plane of the beam. Relative movement between the segments and the beam causes the beam to traverse the first seam throughout the plane of the seam and fuse the segments together. The segments are indexed by the fixture to bring the second seam into a position coincident with the plane of the beam. Relative movement between the segments and the beam causes the beam to traverse the second seam throughout the plane of the seam and fuse the segments together. The steps are repeated until the bit is completed.

Abstract translation: 提供了一种定位系统，用于将岩石钻头的各个段夹持在一起用于组装的钻头，并且利用来自焊枪的能量束将段之间的接缝对准。 这些段被移动直到段之间的第一接缝的平面与梁的平面重合。 分段和梁之间的相对运动导致横梁穿过接缝的整个平面中的第一接缝，并将段熔合在一起。 这些段被固定装置索引，以使第二接缝处于与梁的平面重合的位置。 在段和梁之间的相对运动导致梁穿过接缝的整个平面中的第二接缝，并将段熔合在一起。 重复这些步骤，直到该位完成。

公开(公告)号：US4770068A

公开(公告)日：1988-09-13

申请号：US925693

申请日：1986-10-29

Applicant: Robert H. Shaw ,  James E. White

Inventor： Robert H. Shaw ,  James E. White

IPC: B23K37/00 ,  E21B10/20 ,  B21K29/00

CPC classification number: E21B10/20 ,  B23K37/003 ,  B23K2201/002

Abstract: An apparatus for supporting a rock bit during a welding operation for assembly or replacement of components thereon includes a swivel supporting a receptacle for the bit. The receptacle and swivel include a closed fluid system which attaches to the bit thereby allowing coolant fluid to flow through the bit during a welding operation and without regard to the angular positioning of the bit relative to the welding apparatus.

Abstract translation: 在用于组装或更换其部件的焊接操作期间支撑岩石钻头的装置包括支撑钻头的容器的旋转件。 容器和旋转装置包括一个封闭的流体系统，其连接到钻头，从而允许冷却剂流体在焊接操作期间流过钻头，而不考虑钻头相对于焊接设备的角度定位。

公开(公告)号：US4741471A

公开(公告)日：1988-05-03

申请号：US40381

申请日：1987-04-20

Applicant: Eric C. Sullivan

Inventor： Eric C. Sullivan

IPC: B23K31/10 ,  B23K33/00 ,  E21B10/20 ,  B23K31/02

CPC classification number: E21B10/20 ,  B23K31/10 ,  B23K33/004 ,  B23K2201/002

Abstract: A method and device are shown for manufacturing rotary rock bits. The method eliminates repositioning errors in robotic welding operations by combining a cutting torch and a welding torch on a single, rotatable bracket whereby a bit can be welded at a single station without multiple rechuckings. The quality of the weld tie-in between any two intersecting seams (radial-radial or radial-axial) results where the groove for the latter seam in each pair is cut after the first seam in the pair has been welded.

Abstract translation: 示出了用于制造旋转岩石钻头的方法和装置。 该方法通过将割炬和焊炬组合在单个可旋转的支架上，从而消除了机器人焊接操作中的重新定位错误，从而可以在单个工位焊接钻头，而无需多次重新接头。 任何两个相交接缝（径向 - 径向或径向 - 轴向）之间的焊接质量的结果是，在对中的后一个接缝的槽被焊接在一对中的第一个接缝之后被切割。

公开(公告)号：US4564738A

公开(公告)日：1986-01-14

申请号：US551483

申请日：1983-11-14

Applicant: Jeffrey M. Estes

Inventor： Jeffrey M. Estes

IPC: B23K15/00

CPC classification number: B23K15/0013 ,  B23K2201/002

Abstract: This invention relates to a method and apparatus for the alignment of a corpuscular beam, such as an electron or laser beam, to the abutting surfaces of stepped cylindrical segments whose abutting surfaces may be several inches in thickness, so that the beam will be directed along a path which includes all portions of the abutting surfaces to be joined by welding. The parts to be welded are segments of a stepped cylinder having sections of different radius. The parts to be welded are fixed to a table which can rotate the parts about a fixed axis about which the parts are positioned to form the cylinder. The coordinates at several points along the outer periphery of the joint to be welded are determined with respect to two mutually perpendicular axes, one of which is parallel to the axis about which the rotary table and cylinder rotate. By extrapolation of lines passing through these points, a determination is made by computer of the angular deviation of the plane of the joint from the axis of the rotatable table and its displacement from the axis. The electron beam gun is then caused to move along the two axes in such a way that the beam passes through the abutting surfaces of the segments to be welded.

Abstract translation: 本发明涉及一种用于将粒子束（例如电子或激光束）对准到邻接表面可以具有几英寸厚度的阶梯形圆柱形段的邻接表面的方法和装置，使得光束将被引导 包括通过焊接接合的邻接表面的所有部分的路径。 要焊接的部件是具有不同半径的部分的阶梯式气缸的段。 待焊接的部件被固定到桌子上，该工作台可以围绕固定的轴线旋转部件，部件定位在该固定轴线上以形成气缸。 要焊接的接头的外周的几个点处的坐标相对于两个相互垂直的轴确定，其中一个轴线平行于旋转台和气缸旋转的轴线。 通过外推穿过这些点的线，通过计算机确定接头平面与可旋转台的轴线的角度偏差及其与轴线的位移。 然后使电子束枪沿着两个轴线移动，使得光束穿过待焊接的段的邻接表面。

公开(公告)号：US4414734A

公开(公告)日：1983-11-15

申请号：US326083

申请日：1981-11-30

Applicant: Gerald O. Atkinson

Inventor： Gerald O. Atkinson

IPC: E21B10/08 ,  B23K15/00 ,  B23K37/04 ,  E21B10/00 ,  E21B10/20 ,  B23K31/00 ,  B23Q3/18

CPC classification number: B23K15/0013 ,  B23K37/0426 ,  E21B10/20 ,  B23K2201/002 ,  Y10T29/49895

Abstract: A method of assembling sections of an earth boring bit for welding has features to assure precise bit geometry. The method includes a step of providing a hole in each bit section at the centerline of the 120 degree faces on the interiors of the sections. A triad is constructed for use in assembly and consists of three pins joined together on one end, each having an axis 120 degrees apart from the other axes of the pins. The triad is positioned in the holes in the 120 degree faces when the three sections of the bit are brought together. The shank ends of the sections have holes for receiving dowels located in the welding fixture. Once the sections are positioned and pinned against movement at the shank ends and at the triad, the sections are clamped, then welded.

Abstract translation: 一种组装用于焊接的镗孔钻头的方法具有确保钻头几何精度的特征。 该方法包括在部分的内部的120度面的中心线处的每个位部中设置孔的步骤。 三合一构造用于组装，并且由一端连接在一起的三个销组成，每个销具有与销的其它轴线120度的轴线。 当钻头的三个部分组合在一起时，三角形组件位于120度面的孔中。 这些部分的柄端具有用于接收位于焊接夹具中的定位销的孔。 一旦这些部分被定位并固定在柄端部和三联体处的运动，则这些部分被夹紧，然后被焊接。