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    Methods for repair of single crystal superalloys by laser welding and products thereof
    1.
    发明授权
    Methods for repair of single crystal superalloys by laser welding and products thereof 有权
    通过激光焊接修复单晶超级合金的方法及其产品

    公开(公告)号：US07250081B2

    公开(公告)日：2007-07-31

    申请号：US10728543

    申请日：2003-12-04

    申请人： Yiping Hu ,  William F. Hehmann ,  Murali Madhava

    发明人： Yiping Hu ,  William F. Hehmann ,  Murali Madhava

    IPC分类号： C30B33/06

    CPC分类号： B23P6/007 ,  C30B29/52 ,  C30B33/06 ,  Y10S117/903 ,  Y10S117/904 ,  Y10S117/905

    摘要： Methods for repair of single crystal superalloys by laser welding and products thereof have been disclosed. The laser welding process may be hand held or automated. Laser types include: CO2, Nd:YAG, diode and fiber lasers. Parameters for operating the laser process are disclosed. Filler materials, which may be either wire or powder superalloys are used to weld at least one portion of a single crystal superalloy substrate.

    摘要翻译： 已经公开了通过激光焊接修复单晶超级合金的方法及其产品。 激光焊接过程可以是手持式的或自动的。 激光器类型包括：CO 2，Nd：YAG，二极管和光纤激光器。 公开了用于操作激光工艺的参数。 可以使用线材或粉末超合金的填充材料来焊接单晶超合金基材的至少一部分。

    Modified MCrAlY coatings on turbine blade tips with improved durability
    2.
    发明授权
    Modified MCrAlY coatings on turbine blade tips with improved durability 失效
    涡轮叶片尖端改良的MCrAlY涂层具有改善的耐久性

    公开(公告)号：US07316850B2

    公开(公告)日：2008-01-08

    申请号：US10792003

    申请日：2004-03-02

    申请人： Yiping Hu ,  William F. Hehmann

    发明人： Yiping Hu ,  William F. Hehmann

    IPC分类号： B32B15/04 ,  F03B3/12 ,  C23C14/14

    CPC分类号： C23C30/00 ,  C22C19/058 ,  C23C24/10 ,  F01D5/288 ,  Y10S428/926 ,  Y10T428/12639 ,  Y10T428/12646 ,  Y10T428/12917 ,  Y10T428/12931

    摘要： There is provided a method for depositing a modified MCrAlY coating on a turbine blade tip. The method utilizes laser deposition techniques to provide a metallurgical bond between a turbine blade substrate, such as a superalloy substrate, and the modified MCrAlY composition. Further the modified MCrAlY coating has sufficient thickness such that a post-welding grinding operation to size the turbine blade to a desired dimension will not remove the modified MCrAlY coating entirely. The modified MCrAlY coating thus remains on the finished turbine blade tip after grinding.

    摘要翻译： 提供了一种在涡轮叶片尖端上沉积改性MCrAlY涂层的方法。 该方法利用激光沉积技术在涡轮叶片基底（例如超合金基底）和改性的MCrAlY组合物之间提供冶金结合。 此外，改性的MCrAlY涂层具有足够的厚度，使得将涡轮叶片尺寸为所需尺寸的后焊研磨操作将不会完全除去改性的MCrAlY涂层。 改进的MCrAlY涂层因此在研磨后保留在成品涡轮叶片尖端上。

    Multi-laser beam welding high strength superalloys
    3.
    发明授权
    Multi-laser beam welding high strength superalloys 失效
    多激光束焊接高强度超合金

    公开(公告)号：US06972390B2

    公开(公告)日：2005-12-06

    申请号：US10794207

    申请日：2004-03-04

    申请人： Yiping Hu ,  William F. Hehmann

    发明人： Yiping Hu ,  William F. Hehmann

    IPC分类号： B23K26/34

    CPC分类号： C21D9/50 ,  B23K26/032 ,  B23K26/0604 ,  B23K26/0853 ,  B23K26/144 ,  B23K26/32 ,  B23K26/34 ,  B23K26/342 ,  B23K26/60 ,  B23K2101/001 ,  B23K2101/35 ,  B23K2103/26 ,  B23K2103/50 ,  B23P6/007 ,  C22F1/10 ,  F01D5/005 ,  F05D2230/31

    摘要： A method is provided for repairing degraded and/or eroded areas on gas turbine blades and vanes. The method is directed to turbine blades and vanes made of advanced superalloy materials with high elevated-temperature properties. The method uses multiple laser beams to perform steps of preheating the repair area, welding the repair area, and post-welding heating of the repaired area. The method uses an array of two or more lasers to perform the steps of heating, welding, and post-weld heat treatment in nearly simultaneous operation thereby dramatically reducing or eliminating the hot cracking associated with other welding methods used with superalloy materials. The method is further directed to cladding or material buildup of degraded turbine blades where the weld material is the same as the matrix or better superalloy materials.

    摘要翻译： 提供了一种用于修复燃气轮机叶片和叶片上的劣化和/或侵蚀区域的方法。 该方法涉及由具有高升温性能的先进超级合金材料制成的涡轮叶片和叶片。 该方法使用多个激光束来对维修区域进行预热，修理区域的焊接和修补区域的焊后加热等步骤。 该方法使用两个或更多个激光器的阵列在几乎同时的操作中执行加热，焊接和焊后热处理的步骤，从而显着地减少或消除与超级合金材料使用的其它焊接方法相关的热裂纹。 该方法进一步涉及劣化涡轮机叶片的覆层或材料堆积，其中焊接材料与基体或更好的超合金材料相同。

    MOBILE HAND-HELD LASER WELDING SUPPORT SYSTEM
    6.
    发明申请
    MOBILE HAND-HELD LASER WELDING SUPPORT SYSTEM 有权
    手持式激光焊接支持系统

    公开(公告)号：US20090139967A1

    公开(公告)日：2009-06-04

    申请号：US11055924

    申请日：2005-02-11

    申请人： Martin C. Baker ,  Clyde R. Taylor ,  William F. Hehmann

    发明人： Martin C. Baker ,  Clyde R. Taylor ,  William F. Hehmann

    IPC分类号： B23K26/20

    CPC分类号： B23K26/0096 ,  B23K26/703 ,  B23K37/0294

    摘要： A mobile support system for a hand-held laser welding wand includes a movable cart, a laser source, a fluid source, and a filler medium supply source. The laser source is mounted on the movable cart and is configured to supply laser light for the hand-held laser welding wand. The fluid source is mounted on the movable cart and is configured to supply cooling fluid for the hand-held laser welding wand. The filler medium supply source is mounted on the movable cart and is configured to supply a filler medium for use by the hand-held laser welding wand. The mobile support system is transportable to areas remote from a work shop environment, and provides stand-alone support for the hand-held laser welding wand.

    摘要翻译： 用于手持式激光焊接棒的移动支撑系统包括可移动推车，激光源，流体源和填充介质供应源。 激光源安装在可移动推车上，并被配置为提供用于手持式激光焊接棒的激光。 流体源安装在可移动的推车上并且被配置为提供用于手持式激光焊接棒的冷却流体。 填料介质供应源安装在可移动的推车上，并且被配置为提供用于手持式激光焊接棒的填充介质。 移动支持系统可移动到远离工作场所环境的区域，并为手持式激光焊枪提供独立支持。

    REPAIRED VANE ASSEMBLIES AND METHODS OF REPAIRING VANE ASSEMBLIES
    7.
    发明申请
    REPAIRED VANE ASSEMBLIES AND METHODS OF REPAIRING VANE ASSEMBLIES 失效
    维修组件和维修组件的方法

    公开(公告)号：US20080213092A1

    公开(公告)日：2008-09-04

    申请号：US11680792

    申请日：2007-03-01

    申请人： Wen Guo ,  William F. Hehmann

    发明人： Wen Guo ,  William F. Hehmann

    IPC分类号： B23P6/00 ,  F01D1/02

    CPC分类号： F01D5/005 ,  B23P6/005 ,  F01D9/023 ,  Y10T29/4932 ,  Y10T29/49737

    摘要： Methods are provided for repairing a vane assembly, where the vane assembly includes an inner annular housing, an outer annular housing, and a vane extending therebetween. In one embodiment, the method includes removing an identified section of the vane to thereby form a pocket in an inner surface of the outer annular housing, a slot through the inner annular housing, and an edge on the vane, inserting a replacement vane portion with an advanced coating through the formed slot such that a first edge of the replacement vane portion is disposed in the pocket and at least a portion of the first edge is spaced apart from at least a portion of the outer annular housing inner surface, and welding a section of the replacement vane portion to the annular inner annular housing. The repaired vane assembly is also provided.

    摘要翻译： 提供了用于修理叶片组件的方法，其中叶片组件包括内部环形壳体，外部环形壳体和在其间延伸的叶片。 在一个实施例中，该方法包括去除叶片的识别部分，从而在外环形壳体的内表面中形成袋，通过内环形壳体的槽和叶片上的边缘，将置换叶片部分插入 通过形成的槽的先进涂层使得替换叶片部分的第一边缘设置在凹穴中，并且第一边缘的至少一部分与外环形壳体内表面的至少一部分间隔开，并焊接 更换叶片部分的部分到环形内环形壳体。 还提供修理的叶片组件。

    Hand-held laser welding wand filler media delivery systems and methods
    8.
    发明授权
    Hand-held laser welding wand filler media delivery systems and methods 有权
    手持式激光焊接棒，填料介质输送系统及方法

    公开(公告)号：US07038162B2

    公开(公告)日：2006-05-02

    申请号：US10713759

    申请日：2003-11-13

    申请人： Martin C. Baker ,  Vincent Chung ,  Federico Renteria ,  William F. Hehmann

    发明人： Martin C. Baker ,  Vincent Chung ,  Federico Renteria ,  William F. Hehmann

    IPC分类号： B23K26/34 ,  B23K26/14

    CPC分类号： B23K26/1476 ,  B23K26/0096 ,  B23K26/144 ,  B23K26/706

    摘要： A hand-held laser welding wand includes one or more filler media delivery flow passages. The wand is dimensioned to be grasped with a single hand, thus filler media of various types and forms may be supplied to the weld area on a workpiece using various types of delivery systems and methods, including fully automated, semi-automated, or manually. The filler media may be delivered via the filler media delivery passages or separate from the passages.

    摘要翻译： 手持式激光焊接棒包括一个或多个填料介质输送流动通道。 该杖的尺寸设计成用单手抓住，因此可以使用各种类型的递送系统和方法（包括全自动化，半自动化或手动）将各种类型和形式的填充介质供应到工件上的焊接区域。 填料介质可经由填料介质输送通道输送或与通道分离。

    Powder feed splitter for hand-held laser powder fusion welding torch
    10.
    发明授权
    Powder feed splitter for hand-held laser powder fusion welding torch 失效
    手持激光粉末熔融焊枪粉末进料分流器

    公开(公告)号：US06894247B2

    公开(公告)日：2005-05-17

    申请号：US10206411

    申请日：2002-07-26

    申请人： Federico Renteria ,  William F. Hehmann

    发明人： Federico Renteria ,  William F. Hehmann

    IPC分类号： B23K26/42 ,  B05B7/14 ,  B05B7/22 ,  B22F3/105 ,  B23K26/14 ,  B23K26/00

    CPC分类号： B23K26/144 ,  B05B7/1413 ,  B05B7/228

    摘要： A powder feed splitter and a machine using a powder feed splitter, to divide a powder flow into two or more streams in a predictable, adjustable, and reliable manner for use in material processing such as welding. A housing encloses an inlet disk having an inlet regulator preferably a disk, having an inlet tube which may be adjustable radially or laterally with respect to the housing. An adjustment mechanism can selectively move the inlet regulator to adjust the powder flow amongst the several powder outlet ports. Funnel-shaped cavities within the housing may have optional gas inlets to enable the introduction of additional gas to the separated powder flow streams. A one-way fit may be present between the interior powder flow splitter and the exterior casing. Smooth interior surfaces through the device prevent turbulence and buildup of powder.

    摘要翻译： 粉末进料分流器和使用粉末进料分离器的机器，以可预测，可调节和可靠的方式将粉末流分成两个或更多个流，以用于诸如焊接的材料加工。 壳体包围入口盘，入口调节器优选地具有盘，具有可相对于壳体径向或横向调节的入口管。 调节机构可以选择性地移动入口调节器以调节多个粉末出口之间的粉末流动。 壳体内的漏斗形空腔可以具有可选的气体入口，以便能够向分离的粉末流流引入额外的气体。 在内部粉末分流器和外部壳体之间可以存在单向配合。 通过设备的内表面光滑，可防止粉末的湍流和积聚。