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    Combustion cap effusion plate laser weld repair
    21.
    发明授权
    Combustion cap effusion plate laser weld repair 有权
    燃烧帽渗液板激光焊接修复

    公开(公告)号：US08373089B2

    公开(公告)日：2013-02-12

    申请号：US12550740

    申请日：2009-08-31

    申请人： Jere A. Johnson ,  Srikanth Chandrudu Kottilingam ,  Gene Arthur Murphy, Jr. ,  Liangde Xie

    发明人： Jere A. Johnson ,  Srikanth Chandrudu Kottilingam ,  Gene Arthur Murphy, Jr. ,  Liangde Xie

    IPC分类号： B23K26/00

    CPC分类号： B23K35/3033 ,  B23K26/32 ,  B23K26/342 ,  B23K35/0261 ,  B23K35/3046 ,  B23K2101/001 ,  B23K2103/08 ,  B23K2103/26 ,  B23K2103/50 ,  F01D5/005 ,  F05D2230/13 ,  F23R3/10 ,  F23R2900/00019

    摘要： A process for modifying or repairing a metallic component, such as a combustion cap effusion plate for a gas turbine, is disclosed. The method includes generating a notch or groove in the metallic component and depositing a filler material in the notch or groove. A pulsed laser is applied to the filler material. The pulsed laser has a power, frequency, and pulse width sufficient to apply heat to the metallic component and to the filler material to make at least a portion of the metallic component and the filler material melt in order to weld the filler material to the metallic component and repair or modify the metallic component. Various operating parameters of the pulsed laser can be configured to reduce undesirable heating affects.

    摘要翻译： 公开了用于改变或修理金属部件的方法，例如用于燃气轮机的燃烧盖积液板。 该方法包括在金属部件中产生凹口或凹槽，并将填充材料沉积在凹口或凹槽中。 将脉冲激光施加到填充材料。 脉冲激光器具有足以对金属部件和填充材料施加热量的功率，频率和脉冲宽度，以使金属部件和填充材料的至少一部分熔化，以便将填充材料焊接到金属 组件并修理或修改金属部件。 可以配置脉冲激光器的各种操作参数以减少不期望的加热影响。

    PROCESS AND APPARATUS FOR OVERLAY WELDING
    28.
    发明申请
    PROCESS AND APPARATUS FOR OVERLAY WELDING 审中-公开
    焊接过程和装置

    公开(公告)号：US20130086911A1

    公开(公告)日：2013-04-11

    申请号：US13253189

    申请日：2011-10-05

    申请人： Dechao Lin ,  Srikanth Chandrudu Kottilingam ,  Yan Cui ,  Ibrahim Ucok ,  Brian Lee Tollison

    发明人： Dechao Lin ,  Srikanth Chandrudu Kottilingam ,  Yan Cui ,  Ibrahim Ucok ,  Brian Lee Tollison

    IPC分类号： F02C7/22 ,  B23K9/04

    CPC分类号： B23K9/042 ,  F02C7/222 ,  F05D2230/232 ,  F05D2230/31 ,  F05D2230/80

    摘要： An apparatus and process for depositing an overlay weld on a substrate in a manner that reduces dilution of the substrate material. A consumable electrode is positioned in proximity to the surface of the substrate, and an electrical potential is applied between the electrode and substrate to generate an electrical arc therebetween. The arc melts the electrode and forms a molten spray that deposits on the substrate surface. Energy of the electric arc is absorbed to reduce the temperature at the substrate surface by feeding an additional filler material into the electric arc toward its center axis. The filler material continuously melts prior to reaching the center axis of the electric arc, and the electrode and filler materials are simultaneously deposited to form the overlay weld on the substrate. Sufficient energy is absorbed by the filler material to reduce intermixing between the overlay weld and the substrate.

    摘要翻译： 一种用于以减少衬底材料的稀释的方式在衬底上沉积覆盖焊缝的装置和工艺。 消耗性电极位于基板的表面附近，并且在电极和基板之间施加电势以在它们之间产生电弧。 电弧熔化电极并形成沉积在基板表面上的熔融喷雾。 吸收电弧的能量，以通过向其中心轴线向电弧供给附加的填充材料来降低衬底表面的温度。 填充材料在到达电弧的中心轴线之前连续熔融，同时沉积电极和填充材料，以在衬底上形成覆盖焊缝。 足够的能量被填充材料吸收，以减少覆盖焊缝和衬底之间的混合。

    PROCESS OF CLOSING AN OPENING IN A COMPONENT
    29.
    发明申请
    PROCESS OF CLOSING AN OPENING IN A COMPONENT 有权
    关闭组件中打开的过程

    公开(公告)号：US20110024393A1

    公开(公告)日：2011-02-03

    申请号：US12511494

    申请日：2009-07-29

    申请人： Yan Cui ,  Gitahi Charles Mukira ,  Srikanth Chandrudu Kottilingam

    发明人： Yan Cui ,  Gitahi Charles Mukira ,  Srikanth Chandrudu Kottilingam

    IPC分类号： B23K9/04

    CPC分类号： F01D5/147 ,  B22C21/14 ,  B23K10/027 ,  B23K26/32 ,  B23K26/342 ,  B23K35/30 ,  B23K35/3066 ,  B23K2101/001 ,  B23K2103/18 ,  B23K2103/26 ,  C22C19/055 ,  C22C19/056 ,  C22C19/07 ,  F05D2230/10 ,  F05D2230/21 ,  F05D2230/232

    摘要： A process for closing an opening in a surface of a component, and components formed thereby. The process entails forming a channel in the component surface so that the channel at least partially surrounds an opening at the component surface. An alloy is then deposited in the channel to form a crack-free deposit in the channel. A step is then machined that intersects the opening and is at least partially formed in the deposit. The step defines a recess that is at least partially surrounded by a peripheral portion of the deposit and has a surface recessed into the component surface. A cap is placed in the recess and welded to the peripheral portion of the deposit to define a weld joint that completely closes the opening. The surface of the weld joint is then machined to form a machined surface that is substantially flush with the component surface.

    摘要翻译： 用于封闭部件表面中的开口的过程，以及由此形成的部件。 该过程需要在部件表面中形成通道，使得通道至少部分地围绕部件表面处的开口。 然后将合金沉积在通道中以在通道中形成无裂纹沉积物。 然后加工与开口相交并且至少部分地形成在沉积物中的台阶。 台阶限定了至少部分地被沉积物的周边部分包围的凹部，并且具有凹入到部件表面中的表面。 将盖放置在凹部中并焊接到沉积物的周边部分以限定完全关闭开口的焊接接头。 然后对焊接接头的表面进行加工，以形成与部件表面基本齐平的机加工表面。

    Dual-wire hybrid welding system and method of welding
    30.
    发明授权
    Dual-wire hybrid welding system and method of welding 有权
    双线混合焊接系统及焊接方法

    公开(公告)号：US09278407B2

    公开(公告)日：2016-03-08

    申请号：US13558926

    申请日：2012-07-26

    申请人： Dechao Lin ,  Srikanth Chandrudu Kottilingam ,  Brian L. Tollison ,  Yan Cui ,  David Schick

    发明人： Dechao Lin ,  Srikanth Chandrudu Kottilingam ,  Brian L. Tollison ,  Yan Cui ,  David Schick

    IPC分类号： B23K26/00 ,  B23K9/28 ,  B23K26/14

    CPC分类号： B23K26/1429 ,  B23K9/1735 ,  B23K26/348 ,  B23K2101/001

    摘要： A dual-wire hybrid welding system includes a hybrid welding apparatus having laser, electric arc welder and second wire feeding device. Electric arc welder includes first wire feeding device for feeding first wire. Second wire feeding device is arranged and disposed to feed a second wire to electric arc welder. Laser and electric arc welder are arranged and disposed to direct energy toward at least two adjacent components along a joint and first wire is a consumable electrode fed into joint to establish molten pool generated by both laser and arc welder with first wire. Second wire is fed to molten pool to form a common molten pool. Common molten pool is operable to provide a full penetration weld with less total heat input to join the at least two adjacent components without cracking the components at a high constant weld speed.

    摘要翻译： 双线混合焊接系统包括具有激光，电弧焊接机和第二送丝装置的复合焊接装置。 电弧焊机包括第一导线馈线装置。 第二送丝装置布置并设置成将第二线材馈送到电弧焊机。 激光和电弧焊机被布置和布置成沿着接头将能量引导到至少两个相邻的部件，并且第一线是供给到接头中的消耗电极，以建立由激光和电弧焊机用第一线产生的熔池。 将第二丝线送入熔池以形成共同的熔池。 普通熔池可操作以提供具有较少总热输入的全穿透焊接以连接至少两个相邻部件，而不会以高恒定的焊接速度破坏部件。