EP1996363A1 - Procédé pour relier des éléments de construction métalliques et composant ainsi fabriqué - Google Patents
Procédé pour relier des éléments de construction métalliques et composant ainsi fabriquéInfo
- Publication number
- EP1996363A1 EP1996363A1 EP07722026A EP07722026A EP1996363A1 EP 1996363 A1 EP1996363 A1 EP 1996363A1 EP 07722026 A EP07722026 A EP 07722026A EP 07722026 A EP07722026 A EP 07722026A EP 1996363 A1 EP1996363 A1 EP 1996363A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- component
- components
- metallic materials
- different
- inductor
- 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- Withdrawn
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
-
- 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
- F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
- F01D5/3061—Fixing blades to rotors; Blade roots ; Blade spacers by welding, 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/001—Turbines
Definitions
- the present invention relates to a method for connecting metallic components, in particular components of a gas turbine, wherein the connecting of corresponding connection surfaces of the components by means of an inductive high frequency pressure welding takes place.
- the invention further relates to a component produced by the method.
- inductive high-frequency pressure welding does not define the method or the component in the present case to a specific frequency range. Rather, frequencies in the low kHz range up to the high MHz range are used, so that the new term inductive pressure welding (IPS) could be introduced.
- IPS inductive pressure welding
- a method according to the invention for connecting metallic components uses inductive high-frequency pressure welding to connect corresponding connection surfaces of the components.
- the components consist of different or similar metallic materials with different melting points, permeabilities and / or thermal conductivities.
- at least one process-specific parameter is controlled such that at least the connection surfaces are heated substantially simultaneously at least to at least near the respective melting point of the metallic materials. Due to the control possibilities in the method according to the invention, the components to be welded can each form substantially simultaneously a molten layer on the connecting surfaces, which are then welded together by simple compression. It is possible that a connection surface of the first component is melted and the connection surface of the second component remains below the melting temperature.
- the control of at least one process parameter during the process of inductive high frequency pressure welding comprises varying the frequency induced by at least one inductor. Due to the different heights of the frequencies, which are usually between 7 kHz and 2.5 MHz, it is ensured that the materials are superplastic formable and thus connectable to each other.
- the frequencies are chosen in particular depending on the geometry of the connecting surfaces.
- the induction by means of an inductor, which induces different strengths takes place. But it is also possible to use two or more inductors.
- the connecting surfaces of the components are exposed to the different frequencies for different lengths of time.
- control of at least one process parameter during the process of inductive high frequency pressure welding comprises the variation of the position of the components relative to the inductor or to the inductors.
- control of at least one process parameter during the process of inductive high-frequency compression welding comprises the variation of the spacing of the respective components relative to the inductor.
- a displacement of the inductor in the direction of the component consisting of the metallic material with the higher melting temperature take place.
- the first component consists of steel and the second component of a TiAl alloy.
- the first and second component 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 inventive component in particular a component of a gas turbine, consists of a first component and of a second component, wherein the first and the second component of different or similar metallic materials with different permeabilities and / or varnishleitzuen exist. The components are joined together by means of an inductive high frequency pressure welding.
- At least one process-specific parameter is controlled during the process of inductive high-frequency pressure welding such that at least the joining or joining surfaces of the components are heated substantially simultaneously to at least near the respective melting point of the metallic materials.
- the first component may be made of steel and the second component of a titanium aluminum alloy. But it is also possible that the first and the second component consist of similar metallic materials and are produced by different manufacturing processes.
- the first component is a blade of a rotor in a gas turbine and the second component is a ring or a disk of the rotor.
- These components are BLEDs (Bladed Ring) or BLISKs (Bladed Disk) of gas turbine engines.
- FIG. 10 shows a cut through a component 10 connected and produced according to the invention.
- the component 10 consists of a first component 12 and a second component 14, which have been welded together by means of an inductive high frequency pressure welding.
- at least one process-specific parameter was controlled in such a way that at least the connecting surfaces 20, 22 of the components 12, 14 were heated substantially simultaneously to at least near the respective melting point of the metallic materials.
- the first component 12 is made of steel and the second component of a a titanium aluminum alloy. To connect the first and second components 12, 14, they have been positioned substantially flush and spaced from one another. By energizing an inductor (not shown) with high frequency current and moving together by contacting the bonding pads 20, 24, they were welded together.
- the substantially simultaneous heating of the bonding surfaces 20, 22 each to at least close to the respective melting point of the metallic materials was carried out at a frequency of about 1.0 MHz.
- the coupling distance, ie the relative distance between the inductor and the components 12, 14, was 1.5 mm.
- the inductor was shifted toward the higher melting material, titanium aluminum alloy.
- the displacement was 2 mm.
- the first and second components 12, 14 were connected to each other with a force of 250 N by means of an upsetting path of 1 mm and a welding time of 1.5 s.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
La présente invention concerne un procédé pour relier des éléments (12, 14) de construction métalliques, notamment des éléments de construction d'une turbine à gaz, la liaison entre les surfaces (20, 22) de liaison correspondantes des éléments (12, 14) de construction s'effectuant par soudage inductif par pression à haute fréquence et les éléments (12, 14) de construction se composant de matériaux métalliques différents ou similaires ayant des perméabilités et/ou des conductivités thermiques différentes. Conformément à l'invention, au moins un paramètre spécifique du processus est commandé pendant l'opération de soudage inductif par pression à haute fréquence de telle sorte qu'au moins les surfaces (20, 22) de liaison sont chauffées sensiblement simultanément à chaque fois jusqu'à une température au moins proche du point de fusion respectif des matériaux métalliques. L'invention concerne en plus un composant, notamment un composant d'une turbine à gaz, composé d'un premier élément (12) de construction et d'un deuxième élément (14) de construction, le premier et le deuxième éléments (12, 14) de construction étant constitués de matériaux métalliques différents ou similaires ayant des perméabilités et/ou des conductivités thermiques différentes et étant soudés par soudage inductif par pression à haute fréquence. Conformément à l'invention, au moins un paramètre spécifique du processus est commandé pendant l'opération de soudage inductif par pression à haute fréquence de telle sorte qu'au moins les surfaces (20, 22) de liaison des éléments (12, 14) de construction sont chauffées sensiblement simultanément à chaque fois jusqu'à une température au moins proche du point de fusion respectif des matériaux métalliques.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006012662A DE102006012662A1 (de) | 2006-03-20 | 2006-03-20 | Verfahren zum Verbinden von metallischen Bauelementen und damit hergestelltes Bauteil |
PCT/DE2007/000453 WO2007110036A1 (fr) | 2006-03-20 | 2007-03-14 | Procédé pour relier des éléments de construction métalliques et composant ainsi fabriqué |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1996363A1 true EP1996363A1 (fr) | 2008-12-03 |
Family
ID=38194507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07722026A Withdrawn EP1996363A1 (fr) | 2006-03-20 | 2007-03-14 | Procédé pour relier des éléments de construction métalliques et composant ainsi fabriqué |
Country Status (5)
Country | Link |
---|---|
US (1) | US20090290985A1 (fr) |
EP (1) | EP1996363A1 (fr) |
CA (1) | CA2645842A1 (fr) |
DE (1) | DE102006012662A1 (fr) |
WO (1) | WO2007110036A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006031388A1 (de) * | 2006-07-07 | 2008-01-17 | Mtu Aero Engines Gmbh | Verfahren für die Reparatur und/oder den Austausch von Einzelelementen eines Bauteils einer Gasturbine |
DE102008034930A1 (de) * | 2008-07-26 | 2010-01-28 | Mtu Aero Engines Gmbh | Verfahren zum Erzeugen einer Fügeverbindung mit einkristallinem oder gerichtet erstarrtem Werkstoff |
DE102008046742A1 (de) * | 2008-09-11 | 2010-03-18 | Mtu Aero Engines Gmbh | Verfahren zum Verbinden von Bauteilen |
DE102010032464B4 (de) * | 2010-07-28 | 2017-03-16 | MTU Aero Engines AG | Duale Blisken im Hochdruckverdichter |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4186473A (en) * | 1978-08-14 | 1980-02-05 | General Motors Corporation | Turbine rotor fabrication by thermal methods |
WO1995016525A1 (fr) * | 1993-12-16 | 1995-06-22 | Kawasaki Steel Corporation | Procede et appareil d'assemblage de pieces metalliques |
ATE249571T1 (de) * | 1996-10-18 | 2003-09-15 | Daido Steel Company Ltd | Turbinenrotor aus ti-al und verfahren zur herstellung dieses rotors |
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 |
DE10206447B4 (de) * | 2002-02-11 | 2004-06-03 | Mtu Aero Engines Gmbh | Verfahren und Vorrichtung zum Halten eines zu verbindenden, metallischen Bauteils und Verfahren zum Verbinden eines metallischen Bauteils mit einem weiteren Bauteil |
DE102006012660A1 (de) * | 2006-03-20 | 2007-09-27 | Mtu Aero Engines Gmbh | Bauteil und Verfahren zum Verbinden von metallischen Bauelementen |
-
2006
- 2006-03-20 DE DE102006012662A patent/DE102006012662A1/de not_active Withdrawn
-
2007
- 2007-03-14 WO PCT/DE2007/000453 patent/WO2007110036A1/fr active Application Filing
- 2007-03-14 CA CA002645842A patent/CA2645842A1/fr not_active Abandoned
- 2007-03-14 US US12/293,543 patent/US20090290985A1/en not_active Abandoned
- 2007-03-14 EP EP07722026A patent/EP1996363A1/fr not_active Withdrawn
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2007110036A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20090290985A1 (en) | 2009-11-26 |
CA2645842A1 (fr) | 2007-10-04 |
WO2007110036A1 (fr) | 2007-10-04 |
DE102006012662A1 (de) | 2007-09-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20081001 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR |
|
17Q | First examination report despatched |
Effective date: 20100217 |
|
DAX | Request for extension of the european patent (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: MTU AERO ENGINES AG |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20181016 |