EP2024129A1 - Dispositif de mise en oeuvre d'un procédé de soudage par pression et par induction à basse fréquence ou à haute fréquence avec un isolateur placé dans la région de la liaison, entre l'inducteur et les composants - Google Patents

Dispositif de mise en oeuvre d'un procédé de soudage par pression et par induction à basse fréquence ou à haute fréquence avec un isolateur placé dans la région de la liaison, entre l'inducteur et les composants

Info

Publication number
EP2024129A1
EP2024129A1 EP07785514A EP07785514A EP2024129A1 EP 2024129 A1 EP2024129 A1 EP 2024129A1 EP 07785514 A EP07785514 A EP 07785514A EP 07785514 A EP07785514 A EP 07785514A EP 2024129 A1 EP2024129 A1 EP 2024129A1
Authority
EP
European Patent Office
Prior art keywords
components
inductor
insulator
frequency
pressure welding
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.)
Withdrawn
Application number
EP07785514A
Other languages
German (de)
English (en)
Inventor
Herbert Hanrieder
Alexander Gindorf
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.)
MTU Aero Engines AG
Original Assignee
MTU Aero Engines GmbH
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 MTU Aero Engines GmbH filed Critical MTU Aero Engines GmbH
Publication of EP2024129A1 publication Critical patent/EP2024129A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B23K13/00—Welding by high-frequency current heating
    • B23K13/01—Welding by high-frequency current heating by induction heating
    • 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
    • B23P6/005—Repairing turbine components, e.g. moving or stationary blades, rotors using only replacement pieces of a particular form
    • 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
    • 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
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
    • F01D9/042—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators
    • 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

Definitions

  • the present invention relates to a device for carrying out an inductive low-frequency or high-frequency pressure welding method for connecting metallic components, in particular components of a gas turbine, with at least one generator and at least one inductor.
  • DE 10 2004 006 154 A1 and DE 10 2004 012 653 A1 each describe rotational friction welding methods for joining dynamically loaded components, in particular gas turbine components.
  • the friction welding described is one of the aforementioned pressure welding processes, wherein the friction welding distinguishes the linear friction welding of rotary friction welding and the so-called friction stir welding.
  • a disadvantage of the known devices for carrying out an inductive pressure welding process is that it is necessary for larger component cross sections due to the consequent centered introduction of a large amount of energy to vaporize the metal on the surface of the components to be connected and then to a plasma formation with a short circuit to the inductor can come. This has the effect of disrupting the continuity of litigation and must be reliably prevented.
  • An apparatus for carrying out an inductive low-frequency or high-frequency pressure welding method for connecting metallic components, in particular components of a gas turbine, has at least one generator and at least one inductor.
  • an insulator is at least partially arranged between the inductor and the components in the region of the sections to be connected, the insulator being made of a material which, due to its specific properties, does not substantially or not affect the magnetic interaction between the inductor and the components to be connected with special needs.
  • the insulator is formed spaced from the inductor and the components.
  • the insulating effect of the insulator ensures that there is no distortion between the inductor and the insulator due to possible temperature-dependent differences in thermal expansion between the inductor and the insulator comes.
  • the inductor remains at a formation of metal vapor by the evaporation of the surfaces to be joined Reliably isolated components, it does not distort plasma and thus no short circuit between the components and the inductor.
  • the process can also run smoothly and continuously even in the case of metal vapor formation, which is absolutely necessary, for example, in the case of automatic series production of components.
  • the magnetic interaction between the insulator and the components is not obstructed due to a suitable material selection of the insulator.
  • the insulator may be formed layer or foil-shaped.
  • the insulator is usually made of glass, in particular high-temperature-resistant quartz glass, a high-temperature-resistant ceramic or a high-temperature-resistant plastic.
  • glass in particular high-temperature-resistant quartz glass, a high-temperature-resistant ceramic or a high-temperature-resistant plastic.
  • other materials that have the properties mentioned, for the production of the insulator conceivable.
  • this has means that allow the implementation of inductive low-pressure or high-frequency pressure welding in a vacuum or a protective gas atmosphere.
  • this contributes to the fact that no gases can remain in the connection surface or the connection surfaces of the components. The latter has a positive effect on the quality of the resulting compound.
  • the frequencies used in inductive low-frequency or high-frequency pressure welding selected from a range between 0.05 - 2.5 MHz. It has surprisingly been found that in addition to the known high frequencies and frequencies in the range smaller than 0.25 MHz are sufficient to achieve in the context of frequency pressure welding sufficient heating and associated melting of the connecting surface and the connecting surfaces. Furthermore, it is possible for different frequencies to act simultaneously or successively on the at least one connection surface. With this multi-frequency technique, it is possible to respond to different textures and geometries of the metallic components to be connected and a possible lends homogeneous heating or melting of the bonding surface or the bonding surfaces to achieve.
  • the first component is a blade of a rotor in a gas turbine rotor or a part thereof and the second component is a ring or a disc of the rotor or arranged on the circumference of the ring or disc blade root.
  • BLINGs bladed ring
  • BLISKs bladed disk
  • FIG. 1 shows a schematic representation of a device according to the invention.
  • the device 10 consists of a generator 16 for generating the necessary welding energy and an inductor 18, in particular an induction coil 18.
  • an inductor 18 By energizing the inductor 18 with high-frequency current connecting surfaces 20, 22 of the components 12, 24 are heated. The heating takes place at least close to the melting point of the materials from which the components 12, 24 are made.
  • the first component 12 is part of a blade, which is formed with the second component 24, namely a blade root, which is formed on the circumference of a disk 26.
  • the disk 26 represents a so-called BLISK rotor.
  • the first and the second component 12, 24 may consist of different or similar metallic materials. But it is also possible that the first and the second component 12, 24 consist of similar metallic materials and are produced by different manufacturing processes. This applies, for example, to forged components, components produced by casting, components consisting of single crystals and directionally solidified components.
  • an insulator 28 is arranged between the inductor 18 and the components 12, 24.
  • the insulator 28 is thereby stratified mig trained.
  • the insulator 28 is selected from a material which, due to its specific properties, does not substantially or not hinder the magnetic interaction between the inductor 18 and the components 12, 14 or their connection surfaces 20, 22 to be connected. Suitable materials are, for example, glass, in particular high-temperature-resistant quartz glass, a high-temperature-resistant ceramic or a high-temperature-resistant plastic.
  • the first component 12 is held in a component holder 14.
  • the component holder 14 serves as a transport device for the first component 12.
  • the component holder 14 is displaced in the direction of the arrow.
  • the exemplary embodiment makes it clear that the device 10 is suitable both for the manufacture and the repair of components and components of a gas turbine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

La présente invention concerne un dispositif permettant de mettre en oeuvre un procédé de soudage par pression et par induction à basse fréquence ou à haute fréquence afin de relier des composants métalliques (12, 24), en particulier des composants d'une turbine à gaz. Ce dispositif comprend au moins un générateur (16) et au moins un inducteur (18). Un isolateur (28) est placé au moins partiellement dans la région des sections à relier des composants (12, 24), entre l'inducteur (18) et les composants (12, 24). Cet isolateur (28) est composé d'un matériau qui, de par ses caractéristiques spécifiques, n'entrave sensiblement pas, ou pas du tout, l'interaction magnétique entre l'inducteur (18) et les composants à relier (12, 24). De plus, l'isolateur (28) est situé à distance de l'inducteur (18) et des composants (12, 24).
EP07785514A 2006-05-24 2007-05-18 Dispositif de mise en oeuvre d'un procédé de soudage par pression et par induction à basse fréquence ou à haute fréquence avec un isolateur placé dans la région de la liaison, entre l'inducteur et les composants Withdrawn EP2024129A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006024283A DE102006024283A1 (de) 2006-05-24 2006-05-24 Vorrichtung zur Durchführung eines induktiven Nieder- oder Hochfrequenz-Pressschweißverfahrens
PCT/DE2007/000917 WO2007134586A1 (fr) 2006-05-24 2007-05-18 Dispositif de mise en oeuvre d'un procédé de soudage par pression et par induction à basse fréquence ou à haute fréquence avec un isolateur placé dans la région de la liaison, entre l'inducteur et les composants

Publications (1)

Publication Number Publication Date
EP2024129A1 true EP2024129A1 (fr) 2009-02-18

Family

ID=38594782

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07785514A Withdrawn EP2024129A1 (fr) 2006-05-24 2007-05-18 Dispositif de mise en oeuvre d'un procédé de soudage par pression et par induction à basse fréquence ou à haute fréquence avec un isolateur placé dans la région de la liaison, entre l'inducteur et les composants

Country Status (5)

Country Link
US (1) US20090324398A1 (fr)
EP (1) EP2024129A1 (fr)
CA (1) CA2652359A1 (fr)
DE (1) DE102006024283A1 (fr)
WO (1) WO2007134586A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008047042A1 (de) * 2008-09-13 2010-03-18 Mtu Aero Engines Gmbh Vorrichtung und Verfahren zur induktiven Erwärmung von metallischen Bauelementen
DE102008057188A1 (de) * 2008-11-13 2010-05-20 Mtu Aero Engines Gmbh Verfahren zum Herstellen oder Reparieren von integral beschaufelten Gasturbinenrotoren

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923805A (en) * 1958-02-12 1960-02-02 American Can Co Method of and apparatus for heating tie rods
FR2399299A1 (fr) * 1977-08-05 1979-03-02 Tocco Stel Procede et dispositif de soudage bout a bout par induction de pieces metalliques, notamment de section irreguliere
US4883216A (en) * 1988-03-28 1989-11-28 General Electric Company Method for bonding an article projection
KR960005827B1 (ko) * 1990-06-21 1996-05-01 닛데쯔 요오세쯔 고오교오 가부시끼가이샤 분립체 충전관의 제조방법
FR2670147B1 (fr) * 1990-12-07 1994-12-30 Renault Procede de soudage-diffusion-dynamique de l'acier et dispositif pour la mise en óoeuvre du procede.
DE19858702B4 (de) * 1998-12-18 2004-07-01 Mtu Aero Engines Gmbh Verfahren zum Verbinden von Schaufelteilen einer Gasturbine, sowie Schaufel und Rotor für eine Gasturbine
JP4539067B2 (ja) * 2003-10-06 2010-09-08 Ｊｆｅスチール株式会社 電縫管製造装置
DE102006012675A1 (de) * 2006-03-20 2007-09-27 Mtu Aero Engines Gmbh Verfahren und Vorrichtung zum Verbinden von Bauteilen einer Gasturbine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007134586A1 *

Also Published As

Publication number Publication date
CA2652359A1 (fr) 2007-11-29
US20090324398A1 (en) 2009-12-31
DE102006024283A1 (de) 2007-11-29
WO2007134586A1 (fr) 2007-11-29

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