[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

CN106903478B - 用于深末梢裂纹修复的系统和方法 - Google Patents

用于深末梢裂纹修复的系统和方法 Download PDF

Info

Publication number
CN106903478B
CN106903478B CN201611139188.3A CN201611139188A CN106903478B CN 106903478 B CN106903478 B CN 106903478B CN 201611139188 A CN201611139188 A CN 201611139188A CN 106903478 B CN106903478 B CN 106903478B
Authority
CN
China
Prior art keywords
insert
turbine blade
groove
machining
airfoil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201611139188.3A
Other languages
English (en)
Other versions
CN106903478A (zh
Inventor
L.J.惠姆斯
J.R.康诺尔
D.J.多里蒂
A.B.克雷施马
P.A.库克
B.L.亨德森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co PLC
Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Publication of CN106903478A publication Critical patent/CN106903478A/zh
Application granted granted Critical
Publication of CN106903478B publication Critical patent/CN106903478B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P6/00—Restoring or reconditioning objects
    • B23P6/04—Repairing fractures or cracked metal parts or products, e.g. castings
    • B23P6/045—Repairing fractures or cracked metal parts or products, e.g. castings of turbine components, e.g. moving or stationary blades, rotors, etc.
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/005—Repairing methods or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • B23K1/0018—Brazing of turbine parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/19—Soldering, e.g. brazing, or unsoldering taking account of the properties of the materials to be soldered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
    • B23K35/0244—Powders, particles or spheres; Preforms made therefrom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
    • B23K35/0244—Powders, particles or spheres; Preforms made therefrom
    • B23K35/025—Pastes, creams, slurries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B23K35/3033—Ni as the principal constituent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B23K35/3046—Co as the principal constituent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B23K35/3053—Fe as the principal constituent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P6/00—Restoring or reconditioning objects
    • B23P6/002—Repairing turbine components, e.g. moving or stationary blades, rotors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P6/00—Restoring or reconditioning objects
    • B23P6/002—Repairing turbine components, e.g. moving or stationary blades, rotors
    • B23P6/007—Repairing turbine components, e.g. moving or stationary blades, rotors using only additive methods, e.g. build-up welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/147—Construction, i.e. structural features, e.g. of weight-saving hollow blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/20—Specially-shaped blade tips to seal space between tips and stator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/001—Turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/32—Application in turbines in gas turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/10—Manufacture by removing material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/23—Manufacture essentially without removing material by permanently joining parts together
    • F05D2230/232—Manufacture essentially without removing material by permanently joining parts together by welding
    • F05D2230/237—Brazing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/80—Repairing, retrofitting or upgrading methods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05D2240/307—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the tip of a rotor blade
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/17—Alloys
    • F05D2300/175—Superalloys

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Architecture (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

本申请提供一种修复涡轮叶片(100)的方法。该方法可包括以下步骤：从涡轮叶片(110)完全或部分地移除现有的末梢帽(190)；加工涡轮叶片(100)以形成加工沟槽(220)；将插入物(230)定位在加工沟槽(220)中；将插入物(230)焊接于涡轮叶片(100)；和硬焊涡轮叶片(100)。

Description

用于深末梢裂纹修复的系统和方法
技术领域
本申请和所得的专利大体上涉及燃气涡轮发动机，且更具体而言，涉及用于涡轮翼型件和相关构件中的深末梢裂纹修复的系统和方法。
背景技术
铸造涡轮叶片通常在其远端处包括称为末梢帽(tip cap)的结构。末梢帽是叶片的相对小的延伸部。末梢帽可具有与叶片的截面形状相配的截面形状，且可与叶片的径向外端一体或安装在其上。在使用中的一段时间之后，末梢帽可因热燃烧气体的冲击而被侵蚀、氧化、和/或腐蚀。因为涡轮叶片制造起来可能是昂贵的，所以如果可能，则受损叶片的修复或整修是优选的。涡轮叶片末梢帽的修复可通过将受损材料磨削掉且然后焊接或以其他方式附接替换材料来进行。冷却末梢帽也可延长总有用构件寿命。然而，由于制造约束，提供冷却是困难的。
发明内容
本申请和所得专利因此提供一种修复涡轮叶片的方法。该方法可包括以下步骤：从涡轮叶片完全或部分地移除现有的末梢帽；加工涡轮叶片以形成加工沟槽；将插入物定位在加工沟槽中；将插入物焊接于涡轮叶片；和硬焊涡轮叶片。
本申请和所得的专利还提供一种用于在燃气涡轮发动机中使用的涡轮叶片。涡轮叶片可包括：翼型件；末梢帽，其在翼型件的端部处；插入物，其被在末梢帽附近焊接于翼型件；和可硬焊膏，其被硬焊在插入物附近。
本申请和所得的专利因此提供一种修复涡轮叶片的方法。该方法可包括以下步骤：从涡轮叶片完全或部分地移除现有的末梢帽；加工涡轮叶片中的裂纹以形成加工沟槽；将预烧结预型件插入物定位在加工沟槽中；将预烧结预型件插入物焊接于涡轮叶片；和硬焊涡轮叶片。
技术方案1：一种修复涡轮叶片100的方法，包括：
从所述涡轮叶片100完全或部分地移除现有的末梢帽190；
加工所述涡轮叶片100以形成加工沟槽220；
将插入物230定位在所述加工沟槽220中；
将所述插入物230焊接于所述涡轮叶片100；和
硬焊所述涡轮叶片100。
技术方案2：根据技术方案1所述的方法，其中，移除现有的末梢帽的步骤包括加工所述末梢帽。
技术方案3：根据技术方案1所述的方法，还包括替换所述涡轮叶片100上的所述末梢帽190的步骤。
技术方案4：根据技术方案1所述的方法，还包括形成所述插入物230的步骤。
技术方案5：根据技术方案4所述的方法，其中，形成所述插入物230的步骤包括由预烧结预型件材料240形成所述插入物230。
技术方案6：根据技术方案4所述的方法，其中，形成所述插入物的步骤包括由超级合金材料形成所述插入物。
技术方案7：根据技术方案4所述的方法，其中，形成所述插入物230的步骤包括由基底材料形成所述插入物230。
技术方案8：根据技术方案4所述的方法，其中，形成所述插入物230的步骤包括添加制造过程。
技术方案9：根据技术方案1所述的方法，其中，加工所述涡轮叶片100的步骤包括加工所述涡轮叶片100以移除裂纹210。
技术方案10：根据技术方案1所述的方法，其中，加工所述涡轮叶片100以形成加工沟槽220的步骤包括加工所述加工沟槽220以容纳所述插入物230。
技术方案11：根据技术方案1所述的方法，其中，加工所述涡轮叶片100以形成加工沟槽220的步骤包括加工所述加工沟槽220以容纳所述插入物230和焊接合金250。
技术方案12：根据技术方案1所述的方法，其中，将所述插入物230焊接于所述涡轮叶片100的步骤包括在所述插入物230上的焊接合金250。
技术方案13：根据技术方案1所述的方法，其中，硬焊所述涡轮叶片100的步骤包括在其上硬焊可硬焊膏260。
技术方案14：根据技术方案1所述的方法，其中，所述涡轮叶片100包括第一级动叶。
技术方案15：一种用于在燃气涡轮发动机10中使用的涡轮叶片100，包括：
翼型件110；
末梢帽190，其在所述翼型件110的端部处；
插入物230，其被在所述末梢帽190附近焊接于所述翼型件110；和
可硬焊膏260，其被硬焊在所述插入物230附近。
技术方案16：一种修复涡轮叶片的方法，包括：
从所述涡轮叶片完全或部分地移除现有的末梢帽；
加工所述涡轮叶片中的裂纹以形成加工沟槽；
将预烧结预型件插入物定位在所述加工沟槽中；
将所述预烧结预型件插入物焊接于所述涡轮叶片；和
硬焊所述涡轮叶片。
技术方案17：根据技术方案16所述的方法，其中，移除现有的末梢帽的步骤包括加工所述末梢帽。
技术方案18：根据技术方案16所述的方法，还包括替换所述涡轮叶片上的所述末梢帽的步骤。
技术方案19：根据技术方案16所述的方法，其中，将所述插入物焊接于所述涡轮叶片的步骤包括在所述插入物上的焊接合金。
技术方案20：根据技术方案16所述的方法，其中，硬焊所述涡轮叶片的步骤包括硬焊可硬焊膏。
在阅读结合若干附图和所附权利要求作出的下列详细说明之后，本申请和所得专利的这些和其他特征和改进对本领域技术人员将变得显而易见。
附图说明
图1是燃气涡轮发动机的示意图，其示出压缩机、燃烧器、涡轮、和负载。
图2是涡轮叶片的透视图，其中若干裂纹在其中延伸。
图3是具有加工区域的图2的涡轮叶片的部分透视图。
图4是具有用插入物和焊接合金填充的加工区域的图2的涡轮叶片的部分透视图。
图5是示出可在本文中描述的修复涡轮叶片时的示范步骤的流程图。
部件列表
10 燃气涡轮发动机
15 压缩机
20 空气
25 燃烧器
30 燃料
35 燃烧气体
40 涡轮
45 轴
50 负载
100 涡轮叶片
110 翼型件
120 前缘
130 后缘
140 凹入侧
150 凸出侧
160 柄
170 燕尾件
180 平台
190 末梢帽
200 凹部
210 裂纹
220 加工沟槽
230 插入物
240 PSP
250 焊接合金
260 可硬焊膏。
具体实施方式
现在参考附图(其中贯穿若干视图，类似的标号指类似的元件)，图1示出可在本文中使用的燃气涡轮发动机10的示意图。燃气涡轮发动机10可包括压缩机15。压缩机15压缩进入的空气流20。压缩机15将压缩空气流20输送到燃烧器25。燃烧器25将压缩空气流20与加压燃料流30混合，且点燃该混合物以形成燃烧气体流35。尽管仅示出了单个燃烧器25，但燃气涡轮发动机10可包括以周向阵列等的形式布置的任意数量的燃烧器25。燃烧气体流35又被输送到涡轮40。燃烧气体流35驱动涡轮40，以便产生机械功。在涡轮40中产生的机械功通过轴45来驱动压缩机15和外部负载50(诸如发电机等)。
燃气涡轮发动机10可利用天然气、各种类型的合成气、液态燃料、和/或其他类型的燃料及其掺合物。燃气涡轮发动机10可为由General Electric Company ofSchenectady, New York提供的多种不同的燃气涡轮发动机中的任一种，包括但不限于诸如7系列或9系列重载燃气涡轮发动机等的那些。燃气涡轮发动机10可具有不同的构造，且可使用其他类型的构件。其他类型的燃气涡轮发动机也可用在本文中。多个燃气涡轮发动机、其他类型的涡轮、和其他类型的功率生成设备也可一起用在本文中。
图2是涡轮叶片100的示例的透视图。在该示例中，涡轮叶片100可为第一级动叶，但在本文中可使用任何类型的叶片。一般来说，涡轮叶片100包括翼型件110。翼型件110可从前缘120延伸至后缘130，具有凹入的压力侧外壁140和凸出的吸力侧外壁150。涡轮叶片100还可包括向下延伸的柄160和处于燕尾件170形式的附接件。平台180可在翼型件110和柄160及燕尾件170之间横向地延伸。翼型件110的径向端可包括末梢帽190。末梢帽190可为外侧壁140、150的延伸部。末梢帽190可在其中限定凹陷区域200。本文中描述的涡轮叶片100和末梢帽190仅用于示例目的。许多其他设计和构造可为已知的。
如上所述，末梢帽190可经历高温，且可相对于密封结构(诸如静止护罩)摩擦。结果，裂纹210可由于热感应应力和因氧化引起的材料损耗等而在叶片末梢190中或附近生长。为了修复涡轮叶片100，末梢帽190可被向下加工，以便移除裂纹210或其他类型的磨损、受损、或其他方式有缺陷的部位。末梢帽材料可被以常规方式向下加工。较深的裂纹210可通过焊接等来修复。然而，常规焊接技术仅可修复具有有限深度的裂纹210。具有超过该有限深度的裂纹210的翼型件110可能不能够修补。而且，常规焊接技术一般要求高度熟练的工人且可能是耗时的。
为了修复具有较深裂纹210的翼型件110，图3示出具有在被加工末梢帽190附近的加工沟槽220的翼型件110。具体而言，翼型件110可被精确地加工，以移除裂纹210。加工沟槽220可完全或部分地匹配插入物230的相对大小、形状、和构造。插入物230可由预烧结预型件(PSP)240和/或其他类型的材料形成。预烧结预型件材料240可为可硬焊超级合金等。具体而言，预烧结预型件材料240可为硬焊和超级合金粉末的掺合物。备选地，可使用基底材料、基底合金、它们的组合、和其他材料。插入物230可为实心元件、箔、膏状物、蜂窝构造、它们的组合等。可使用实心元件(诸如板和其他结构)的组合。插入物230可具有任何合适的大小、形状、或构造。插入物230可利用常规方式形成。添加制造过程，即，三维打印，也可用于形成插入物230。可在本文中使用其他构件和其他构造。
一旦插入物230定位在加工沟槽220内，则可通过焊接合金250等将插入物230焊接(基本上定位焊(tack))到合适位置。插入物230可稍微尺寸不足，以便允许焊接合金250延伸到沟槽220表面的空间。一旦固定，则可以以常规方式精整该焊接合金250。焊接合金250可为适合用于焊接的常规材料。一旦插入物230被通过焊接合金250焊接到合适位置，则涡轮叶片55可经历硬焊循环。硬焊循环可以或可以不在加工区域220、插入物230附近，且完全或部分地沿着翼型件110使用额外量的可硬焊膏260或其他类型的可硬焊材料，可使用常规硬焊技术。可硬焊膏260可为适合用于硬焊的常规材料。
因此可通过加工裂纹210、将插入物230焊接到合适位置、且完全或部分地硬焊翼型件110来修复翼型件110中的裂纹210。插入物230可被通过焊接合金250和硬焊过程锁定于合适位置。一旦被修复，则可以以常规方式替换末梢帽190。具体而言，插入物230可作用为平台，可在该平台上重建末梢帽190。多个插入物230可用于修复多个裂纹210。可在本文中使用其他构件和其他构造。
图5示出完全或部分地执行在本文中描述的方法时的示范步骤的流程图。在步骤260处，现有的末梢帽190可被在翼型件110上向下加工。在步骤270处，可通过加工沟槽220来移除裂纹210。在步骤280处，可将插入物230定位在加工沟槽220内。在步骤290处，可通过焊接合金250将插入物230焊接到合适位置。在步骤300处，翼型件110可经历硬焊循环。在步骤310处，可替换末梢帽190。此时，改进的涡轮叶片100可准备用于使用和/或其他类型的处理。在本文中描述的方法步骤不是排他的。可以以任何期望的顺序使用其他或不同的方法步骤以修复涡轮叶片100。
因此本文中描述的系统和方法提供具有深末梢裂纹210的涡轮叶片100的快速和有效率的修复。在本文中描述的系统和方法允许修复具有不能够以常规方式通过简单的焊接或硬焊修复的较深裂纹210的涡轮叶片100。因此本文中描述的系统和方法可以以快速且成本有效的方式延长涡轮叶片100的寿命。本文中描述的系统和方法还可适用于其他类型的热气体路径构件、其他类型的涡轮构件等。
应当明白的是，前述内容仅涉及本申请和所得专利的某些实施例。可由本领域技术人员在本文中作出许多改变和改型，而不偏离如由以下权利要求及其等同物限定的本发明的总体精神和范围。

Claims (12)

1.一种修复包括翼型件(110)的涡轮叶片(100)的方法，所述方法包括：
从所述涡轮叶片(100)的所述翼型件(110)完全或部分地移除现有的末梢帽(190)，以修复所述末梢帽(190)和所述翼型件(110)中或附近的裂纹(210)；
在所述裂纹(210)附近加工所述翼型件(110)以在所述翼型件(110)中形成包括开口端和封闭端的加工沟槽(220)；
将插入物(230)定位在所述加工沟槽(220)中而使其抵靠所述加工沟槽(220)的所述封闭端，其中所述插入物(230)相对于所述加工沟槽(220)为尺寸不足的，以在所述加工沟槽(220)的所述开口端和所述插入物(230)的端部之间提供空间，其中所述空间包括竖直间隙，所述竖直间隙具有竖直高度，所述竖直高度在所述插入物(230)的顶端和所述翼型件(110)在所述加工沟槽(220)的所述开口端附近的表面之间延伸；
经由在所述加工沟槽(220)的所述开口端和所述插入物(230)的所述端部之间的所述空间内的焊接合金将所述插入物(230)焊接于所述加工沟槽(220)内以填充所述竖直间隙，其中所述焊接合金从所述插入物(230)的顶端延伸至所述翼型件(110)在所述加工沟槽(220)的所述开口端附近的所述表面以将所述插入物(230)锁定在所述加工沟槽(220)内的合适位置并填充所述竖直间隙；和
在所述加工沟槽(220)、所述插入物(230)、所述焊接合金和所述翼型件(110)附近硬焊所述涡轮叶片(100)，以将所述插入物(230)锁定在所述加工沟槽(220)内的合适位置。
2.根据权利要求1所述的方法，其中，移除现有的末梢帽的步骤包括加工所述末梢帽。
3.根据权利要求1所述的方法，还包括替换所述涡轮叶片(100)上的所述末梢帽(190)的步骤。
4.根据权利要求1所述的方法，还包括形成所述插入物(230)的步骤。
5.根据权利要求4所述的方法，其中，形成所述插入物(230)的步骤包括由预烧结预型件材料(240)形成所述插入物(230)。
6.根据权利要求4所述的方法，其中，形成所述插入物的步骤包括由超级合金材料形成所述插入物。
7.根据权利要求4所述的方法，其中，形成所述插入物(230)的步骤包括由基底材料形成所述插入物(230)。
8.根据权利要求4所述的方法，其中，形成所述插入物(230)的步骤包括增材制造过程。
9.根据权利要求1所述的方法，其中，加工所述涡轮叶片(100)以形成加工沟槽(220)的步骤包括加工所述加工沟槽(220)以容纳所述插入物(230)。
10.根据权利要求1所述的方法，其中，加工所述翼型件(110)以形成加工沟槽(220)的步骤包括加工所述加工沟槽(220)以容纳所述插入物(230)和所述焊接合金(250)。
11.根据权利要求1所述的方法，其中，硬焊所述涡轮叶片(100)的步骤包括在其上硬焊可硬焊膏(260)。
12.根据权利要求1所述的方法，其中，所述涡轮叶片(100)包括第一级动叶。
CN201611139188.3A 2015-12-10 2016-12-12 用于深末梢裂纹修复的系统和方法 Active CN106903478B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/964,616 US10174617B2 (en) 2015-12-10 2015-12-10 Systems and methods for deep tip crack repair
US14/964616 2015-12-10

Publications (2)

Publication Number Publication Date
CN106903478A CN106903478A (zh) 2017-06-30
CN106903478B true CN106903478B (zh) 2021-06-18

Family

ID=57406106

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611139188.3A Active CN106903478B (zh) 2015-12-10 2016-12-12 用于深末梢裂纹修复的系统和方法

Country Status (4)

Country Link
US (1) US10174617B2 (zh)
EP (1) EP3178602B1 (zh)
JP (1) JP6877969B2 (zh)
CN (1) CN106903478B (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10456849B2 (en) 2017-05-25 2019-10-29 General Electric Company Composite component having angled braze joint, coupon brazing method and related storage medium
EP3417989B1 (en) * 2017-06-21 2023-12-27 General Electric Technology GmbH Method of repairing a turbomachine component
JP6965221B2 (ja) * 2018-09-13 2021-11-10 三菱パワー株式会社 ガスタービンシステム
US11517969B2 (en) * 2019-01-24 2022-12-06 General Electric Company Weld-brazing techniques
JP7259080B2 (ja) * 2019-03-29 2023-04-17 シーメンス エナジー インコーポレイテッド 複合先端ホウ素ベースの予備焼結プリフォームを使用するタービンコンポーネントの先端補修
WO2021255776A1 (ja) 2020-06-15 2021-12-23 住友電気工業株式会社 ばね用鋼線
CN112191967B (zh) * 2020-09-29 2022-04-12 中国航发动力股份有限公司 一种真空钎焊零件局部缺陷的电子束钎焊修补方法
US11814979B1 (en) * 2022-09-21 2023-11-14 Rtx Corporation Systems and methods of hybrid blade tip repair

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4285459A (en) 1979-07-31 1981-08-25 Chromalloy American Corporation High temperature braze repair of superalloys
JPH09168927A (ja) 1995-12-19 1997-06-30 Hitachi Ltd ガスタービン用動翼，静翼の補修方法
US6332272B1 (en) 2000-01-07 2001-12-25 Siemens Westinghouse Power Corporation Method of repairing a turbine blade
US6884964B2 (en) * 2003-01-09 2005-04-26 General Electric Company Method of weld repairing a component and component repaired thereby
US20080210741A1 (en) 2007-03-01 2008-09-04 General Electric Company Weld repair as a combined heat treatment brazing process for metallic components
US20080265005A1 (en) * 2007-04-30 2008-10-30 United Technologies Corporation Brazing process incorporating graphitic preforms
US9009965B2 (en) 2007-05-24 2015-04-21 General Electric Company Method to center locate cutter teeth on shrouded turbine blades
US8052378B2 (en) * 2009-03-18 2011-11-08 General Electric Company Film-cooling augmentation device and turbine airfoil incorporating the same
EP2317076B1 (en) 2009-10-30 2018-02-14 Ansaldo Energia IP UK Limited A method for repairing a gas turbine component
JP2012112290A (ja) * 2010-11-24 2012-06-14 Toshiba Corp ガスタービンの高温部品の損傷補修方法およびガスタービンの高温部品
US8921730B2 (en) 2011-06-22 2014-12-30 General Electric Company Method of fabricating a component and a manufactured component
US8640094B2 (en) 2011-07-01 2014-01-28 International Business Machines Corporation Building optimized download modules leveraging modularized dependencies
US9057271B2 (en) * 2011-11-04 2015-06-16 Siemens Energy, Inc. Splice insert repair for superalloy turbine blades
US20140017415A1 (en) 2012-07-13 2014-01-16 General Electric Company Coating/repairing process using electrospark with psp rod
US20140147283A1 (en) 2012-11-27 2014-05-29 General Electric Company Method for modifying a airfoil shroud and airfoil
US9567860B2 (en) 2012-11-27 2017-02-14 General Electric Company Fixture for an airfoil shroud and method for modifying an airfoil shroud
US9863249B2 (en) * 2012-12-04 2018-01-09 Siemens Energy, Inc. Pre-sintered preform repair of turbine blades
US20140157597A1 (en) 2012-12-07 2014-06-12 General Electric Company Method of locally inspecting and repairing a coated component
US9056443B2 (en) 2013-02-04 2015-06-16 General Electric Company Brazing process, braze arrangement, and brazed article
US8640942B1 (en) 2013-03-13 2014-02-04 Siemens Energy, Inc. Repair of superalloy component
US9415438B2 (en) * 2013-04-19 2016-08-16 United Technologies Corporation Method for forming single crystal parts using additive manufacturing and remelt
US20140341743A1 (en) 2013-05-15 2014-11-20 General Electric Company Modified turbine buckets and methods for modifying turbine buckets
US9849533B2 (en) 2013-05-30 2017-12-26 General Electric Company Hybrid diffusion-brazing process and hybrid diffusion-brazed article
US9574447B2 (en) 2013-09-11 2017-02-21 General Electric Company Modification process and modified article
US10539041B2 (en) 2013-10-22 2020-01-21 General Electric Company Cooled article and method of forming a cooled article

Also Published As

Publication number Publication date
US10174617B2 (en) 2019-01-08
EP3178602B1 (en) 2024-03-20
EP3178602A1 (en) 2017-06-14
JP6877969B2 (ja) 2021-05-26
CN106903478A (zh) 2017-06-30
JP2017115859A (ja) 2017-06-29
US20170167263A1 (en) 2017-06-15

Similar Documents

Publication Publication Date Title
CN106903478B (zh) 用于深末梢裂纹修复的系统和方法
EP3115147A1 (en) Systems and methods for turbine blade repair
US9868180B2 (en) Turbine blade tip repair using dual fusion welding
CA2647767C (en) Method for repairing a turbine nozzle segment
US8356409B2 (en) Repair method for gas turbine engine components
US7278821B1 (en) Methods and apparatus for assembling gas turbine engines
EP2586562A2 (en) Methods for repairing turbine blade tips
US10875131B2 (en) Repair or remanufacture of blade platform for a gas turbine engine
EP2971519B1 (en) Method for working airfoil clusters of a gas turbine engine
JP2004286014A (ja) 鋳造ノズルの組み立て式修理
JP2005201242A (ja) ガスタービンロータブレードを修理する方法
EP1967697A2 (en) Turbine nozzle segment and repair method
EP3318364A1 (en) Threaded coupon for repair of superalloy part
CN113090336A (zh) 超合金零件及其加工方法
US9828857B2 (en) Repaired or remanufactured blade platform for a gas turbine engine
US11077527B2 (en) Modified components and methods for modifying components
US20090165275A1 (en) Method for repairing a cooled turbine nozzle segment
EP3100819A1 (en) Repair or remanufacture of cooled components with an oxidation resistant braze

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20240102

Address after: Swiss Baden

Patentee after: GENERAL ELECTRIC CO. LTD.

Address before: New York State, USA

Patentee before: General Electric Co.