Method for repairing gas turbine rotor blades
    1.
    发明公开
    Method for repairing gas turbine rotor blades 审中-公开
    Verfahren zur Reparatur von Turbinen-Rotorschaufeln

    公开(公告)号:EP1533071A2

    公开(公告)日:2005-05-25

    申请号:EP04256954.1

    申请日:2004-11-10

    IPC分类号: B23P6/00 F01D5/00

    摘要: A method for replacing a portion of a gas turbine engine rotor blade, the rotor blade having a contour defined by a blade first sidewall (70) and a blade second sidewall (70) includes cutting through the rotor blade such that a cut line (110) extends from a leading edge (74) of the blade to a trailing edge (76) of the blade, and between the first sidewall and the second sidewall, removing the portion of the rotor blade that is radially outward of the cut line, and coupling a replacement blade portion (120) to remaining blade portion (98) such that the newly formed rotor blade (150) is formed with a predetermined aerodynamic contour.

    摘要翻译: 一种用于替换燃气涡轮发动机转子叶片的一部分的方法,具有由叶片第一侧壁(70)和叶片第二侧壁(70)限定的轮廓的转子叶片包括切割通过转子叶片使得切割线(110 )从叶片的前缘(74)延伸到叶片的后缘(76),并且在第一侧壁和第二侧壁之间,移除在切割线的径向外侧的转子叶片的部分,以及 将替换刀片部分(120)联接到剩余刀片部分(98),使得新形成的转子叶片(150)形成有预定的空气动力学轮廓。

    Method for repairing a hole in a metallic workpiece
    5.
    发明公开
    Method for repairing a hole in a metallic workpiece 有权
    一种用于在金属工件修复孔的方法

    公开(公告)号:EP1655099A3

    公开(公告)日:2007-03-21

    申请号:EP05256716.1

    申请日:2005-10-31

    IPC分类号: B23K31/02

    摘要: A workpiece structure (40) having a hole (52) therein is repaired by preparing a stack (42) having a first confinement sheet (44), a first donor sheet (46), a workpiece structure (40) having a hole (52) therein, a plug (66) of a plug material in the hole (52), optionally a second donor sheet (64), and a second confinement sheet (47). The first confinement sheet (44), the first donor sheet (46), the second donor sheet (64), and the second confinement sheet (47) each overlie the hole (52). The first confinement sheet (44) and the second confinement sheet (47) each melt at a temperature greater than do the first donor sheet (46), the plug (66), and the second donor sheet (64). The stack (42) is locally heated at the hole (52) using an electrical current source to a temperature sufficiently high to locally melt the first donor sheet (46), the plug (66), the second donor sheet (64), and the workpiece structure (40). The stack (42) is thereafter cooled to solidify all melted material and form a weldment.

    Welding process
    6.
    发明公开
    Welding process 有权
    焊接工艺

    公开(公告)号:EP1584402A3

    公开(公告)日:2006-06-21

    申请号:EP05251980.8

    申请日:2005-03-30

    摘要: A process for repairing a compressor rear frame of a gas turbine engine. The process entails removing a seal flange (118) from the inner casing wall (12) of the frame (10) to define an annular face (130) on the casing wall (12), and fabricating a replacement flange (118) to have an annular face (132) with a radial width greater than the radial width of the annular face (130) of the casing wall (12). The faces (130,132) of the flange (118) and wall (12) are mated to form a joint (122), a penetration-enhancing flux (128) is deposited adjacent the joint (122), and a single-pass gas tungsten arc welding operation is performed to form a root weldment (124) that extends completely through the joint (122). The flux (128) is then removed and a gas tungsten arc welding operation is performed to deposit a filler on the root weldment (124) and form a second weldment that completely overlays but does not penetrate through the root weldment (124).

    Welding process
    7.
    发明公开
    Welding process 有权
    Schweißverfahren

    公开(公告)号:EP1584402A2

    公开(公告)日:2005-10-12

    申请号:EP05251980.8

    申请日:2005-03-30

    IPC分类号: B23K9/167 B23K9/235 B23P15/04

    摘要: A process for repairing a compressor rear frame of a gas turbine engine. The process entails removing a seal flange (118) from the inner casing wall (12) of the frame (10) to define an annular face (130) on the casing wall (12), and fabricating a replacement flange (118) to have an annular face (132) with a radial width greater than the radial width of the annular face (130) of the casing wall (12). The faces (130,132) of the flange (118) and wall (12) are mated to form a joint (122), a penetration-enhancing flux (128) is deposited adjacent the joint (122), and a single-pass gas tungsten arc welding operation is performed to form a root weldment (124) that extends completely through the joint (122). The flux (128) is then removed and a gas tungsten arc welding operation is performed to deposit a filler on the root weldment (124) and form a second weldment that completely overlays but does not penetrate through the root weldment (124).

    摘要翻译: 一种用于修理燃气涡轮发动机的压缩机后架的过程。 该过程需要从框架(10)的内壳壁(12)移除密封凸缘(118),以在壳体壁(12)上限定一个环形面(130),并且制造更换凸缘(118)以具有 环形面(132)的径向宽度大于壳体壁(12)的环形面(130)的径向宽度。 凸缘(118)和壁(12)的表面(130,132)配合以形成接头(122),邻近接头(122)沉积穿透增强通量(128),并且单通道气体钨 执行电弧焊接操作以形成完全延伸穿过接头(122)的根焊件(124)。 然后去除焊剂(128),并进行气体钨电弧焊接操作以将填料沉积在根焊件(124)上并形成完全覆盖但不穿过根焊件(124)的第二焊件。

    Fusion welding method and welded article
    8.
    发明公开
    Fusion welding method and welded article 有权
    熔焊方法和焊接制品

    公开(公告)号:EP1527839A1

    公开(公告)日:2005-05-04

    申请号:EP04256647.1

    申请日:2004-10-27

    IPC分类号: B23K9/00 B23K9/22

    摘要: A fusion welding method is provided for fusion welding at juxtaposed interface surfaces (24,28) a first member (22), for example made of a first metal based on at least one of Ru, Rh, Pd, and Pt, with a second member (26) made of a second metal, for example a high temperature alloy based on at least one of Fe, Co, and Ni, including at least one identified element, for example Al, that can form a continuous layer of a brittle intermetallic compound with the first metal that is free of such element. With the interface surfaces (24,28) disposed in contact, energy is generated at the interface surfaces (24,28) in a combination of an amount and for a first time selected to be sufficient to heat the interface surfaces (24,28) to a fusion welding temperature. However, the first time is less than a second time that enables formation at the fusion welding temperature of the continuous layer of the brittle intermetallic compound at the interface surfaces (24,28). A welded article is provided with a fusion weld free of such continuous layer of the brittle intermetallic compound.

    摘要翻译: 提供了一种熔焊方法,用于在并置的界面表面(24,28)上熔接第一构件(22),该第一构件例如由基于Ru,Rh,Pd和Pt中的至少一种的第一金属与第二构件 (26),所述第二金属例如基于Fe,Co和Ni中的至少一种的高温合金,包括至少一个识别的元素,例如Al,其可以形成脆性金属间化合物的连续层 与没有这种元素的第一种金属复合。 在界面表面(24,28)接触布置的情况下,在界面表面(24,28)处以一定量的组合产生能量并且第一次被选择为足以加热界面表面(24,28) 到熔焊温度。 然而,第一次小于第二次,能够在界面表面(24,28)处形成脆性金属间化合物连续层的熔化焊接温度。 焊接制品设置有没有这种脆性金属间化合物的连续层的熔焊。