WO2006026962A1 - Verfahren zur herstellung eines mit hohlschaufeln integral beschaufelten gasturbinenrotors - Google Patents
Verfahren zur herstellung eines mit hohlschaufeln integral beschaufelten gasturbinenrotors Download PDFInfo
- Publication number
- WO2006026962A1 WO2006026962A1 PCT/DE2005/001542 DE2005001542W WO2006026962A1 WO 2006026962 A1 WO2006026962 A1 WO 2006026962A1 DE 2005001542 W DE2005001542 W DE 2005001542W WO 2006026962 A1 WO2006026962 A1 WO 2006026962A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- blade
- hollow
- welding
- core
- gas turbine
- 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.)
- Ceased
Links
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
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/006—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine wheels
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/34—Laser welding for purposes other than joining
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/34—Laser welding for purposes other than joining
- B23K26/342—Build-up 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
- B23K35/02—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 or brazing
- B23K35/0244—Powders, particles or spheres; Preforms made therefrom
-
- 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
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/04—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine or like blades from several pieces
-
- 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
-
- 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
- F01D5/34—Rotor-blade aggregates of unitary construction, e.g. formed of sheet laminae
-
- 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
- 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
- F05D2230/234—Laser welding
Definitions
- the invention relates to a method for producing a gas turbine rotor which is integrally bladed with hollow domes.
- Gas turbine rotors are known from the prior art in which blades of the gas turbine rotor are anchored via blade roots in corresponding recesses of a base body of the gas turbine rotor.
- the blade roots are preferably contoured either fir-tree-like or dovetail-like, whereby the blade roots engage in correspondingly contoured recesses for anchoring the blades in the base body.
- the blades are detachably connected to the gas turbine rotor.
- integrally bladed gas turbine rotors are known from the prior art, in which the blades are an integral part of the Gasturbi ⁇ nenrotors.
- Integrally bladed gas turbine rotors are also referred to as blisc (B_laded disc) or bling (B_laded ring), depending on whether a disc-shaped main body or an annular base body of the gas turbine rotor is present.
- the present invention relates to a method for producing an integrally bladed gas turbine rotor, namely a gas turbine rotor integrally bladed with hollow blades.
- the procedure for producing a gas turbine rotor which is integrally bladed with hollow blades is such that, for example, hollow blades produced by superplastic forming are connected to a basic body by linear friction welding.
- the present invention is based on the problem to provide a novel method for producing a gas turbine rotor integrally bladed with hollow blades.
- the method comprises at least the following steps: a) provision of a particular disk-shaped basic body for the gas turbine rotor; b) machining the base body on its outer lateral surface such that a plurality of height-like connection regions for hollow blades are provided distributed over the circumference, wherein the hump-like connection regions each define a partial contour of a cavity of the hollow blade to be connected to the respective connection region; c) constructing blade airfoil contours of the hollow blades at the respective connection regions thereof by laser powder deposition welding; d) processing of the built-up blade airfoil contours to provide fluidic airfoil surfaces.
- a cap-like body or core is attached to each of the bump-like connection regions prior to building up the airfoil contours, wherein each connection region together with the respective core defines the contour of the cavity of the hollow blade to be connected to the respective connection region.
- FIG. 1 shows a detail of a basic body for a gas turbine rotor with a hump-like connection region in a highly schematic view
- FIG. 2 shows a cap-like body or core to be connected to the hump-like connection region
- FIG. 3 shows the basic body of FIG. 1 together with the cap-like body or core of FIG. 2 fastened to the connecting region;
- FIG. 4 shows a blade leaf contour constructed around the connection region and body or core
- FIG. 5 shows a detail of a basic body for a gas turbine rotor with a hump-like connection region according to an alternative of the present invention in a highly schematic view
- FIG. 6 shows a detail of a basic body for a gas turbine rotor with a hump-like connection region according to a further alternative of the present invention in a highly schematic view.
- a first variant of the method according to the invention for producing a gas turbine rotor integrally bladed with hollow blades is described below in greater detail with reference to FIGS. 1 to 4.
- a preferably disc-shaped main body 10 is provided for a gas turbine rotor.
- Fig. 1 shows a section of such a base body 10 in cross-section.
- the disc-shaped basic body 10 is machined on an outer lateral surface 11 in such a way that a plurality of hump-like connection regions 12 for hollow blades are provided distributed over the circumference.
- the machining of the base body 10 on its outer circumferential surface 11 to provide the hump-like connection regions 12 can be effected, for example, by an ECM machining method (Electro Chemical Machining).
- ECM machining method Electro Chemical Machining
- a cap-like body or core 15 is furthermore provided which, for example, can be formed as a forged part or can be formed from a piece of sheet metal by forming.
- This cap-like body or core 15 has an inner surface 16 which, like the hump-like connection region 12, defines a partial contour of the cavity of a hollow blade to be bonded to the base body 10 or to the connection region 12.
- FIG. 3 shows the rotor disk main body 10 together with the connection region 12 and a core 15 attached to the connection region 12.
- the inner surface 14 of the connection region 12 and the inner surface 16 of the core 15 delimit a cavity 17 which surrounds the cavity space corresponds to the connected hollow blade.
- the cap-like core 15 is fixedly connected to the bump-like connection region 12, preferably by welding, namely by inductive high-frequency compression welding or by laser powder build-up welding.
- a weld seam is formed when the cap-like core 15 is joined to the bump-like connection region 12 on the inside and on the outside.
- the weld in the region of the inner side is identified by reference numeral 18, the weld in the region of the outer side by the reference numeral 19.
- the bonding of the cap-like core 15 with the bump-like connection region 12 is preferably effected in such a way that the welds 18 and 19 are as small and homogeneous as possible.
- the weld seam 19 on the outside is preferably mechanically removed after the connection of the core 15 to the connection region 12. After removal of this outer weld 19, the connection between the connection region 12 and the core 15 is checked for freedom from defects. Only when there is freedom from errors is it progressed with the further steps of the method according to the invention.
- connection region 12 and the cap-like core 15 are built up around a blade edge contour of a hollow blade to be bonded by laser powder build-up welding.
- the material constructed by laser powder build-up welding around the connection region 12 and the core 15 for providing the blade edge contour of the hollow blade to be connected is represented by the section 20 in FIG. 4.
- the build-up of the blade blade contour by laser powder build-up welding proceeds radially outward beyond the area of the cavity 17, starting from the lateral surface 11 or the connection region 12.
- the laser powder deposition welding takes place only directly above the cavity 17, above the cavity 17 a prefabricated end section 21 is fixedly connected to the section 20 constructed by laser powder build-up welding to provide the airfoil contour.
- the prefabricated end section 21 is, in particular, a forged part which is permanently or firmly connected to the section 20, for example by inductive high-frequency pressure welding or else by laser powder build-up welding.
- a forming weld seam is indicated in FIG. 4 by the reference numeral 22. It should be noted at this point that the laser powder build-up welding is carried out in each case under a protective gas atmosphere.
- the prefabricated end section 21 constructed by laser powder build-up welding and the prefabricated end section 21 connected to the section 20 have a sufficient allowance in order subsequently to allow a finishing of the constructed airfoil contour to provide fluidic blade surfaces.
- the final contour machining can be done by milling, for example.
- simple and cost-effective production of gas turbine blades integrally bladed with hollow blades is possible.
- a graded material composition can be realized in the area of the blade by means of the method according to the invention.
- the composition of the applied by Laser ⁇ powder build-up welding section 20 can be changed depending on the radi ⁇ alen extent. A change in the material composition is possible via the blade height and the profile cross section.
- the manufacture of a gas turbine rotor integrally bladed with hollow blades takes place using cap-like cores 15, wherein the cap-like cores 15 are connected to corresponding connection regions 12, and the connection region 12 is subsequently connected thereto by laser powder build-up welding and the cap-like core 15, which together define the cavities 17 of the respective hollow blades, are enclosed by material.
- the method according to the invention can also be carried out without the use of the cap-like cores 15.
- additional reinforcing ribs or stiffening webs can be built up by laser powder build-up welding, which ensure stabilization of the hollow blade, in addition to the airfoil contour within the cavity.
- 5 shows three ribs 23 extending parallel to one another
- FIG. 6 shows zigzag-shaped ribs 24.
- the ribs 23 and 24 are already partially formed in the bump-like connecting regions 12 for the hollow blades and are then laser powder build-up welding together with the actual Blade contour further developed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Laser Beam Processing (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004043746.7 | 2004-09-10 | ||
| DE102004043746A DE102004043746B4 (de) | 2004-09-10 | 2004-09-10 | Verfahren zur Herstellung eines mit Hohlschaufeln integral beschaufelten Gasturbinenrotors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006026962A1 true WO2006026962A1 (de) | 2006-03-16 |
Family
ID=35219429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2005/001542 Ceased WO2006026962A1 (de) | 2004-09-10 | 2005-09-03 | Verfahren zur herstellung eines mit hohlschaufeln integral beschaufelten gasturbinenrotors |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102004043746B4 (de) |
| WO (1) | WO2006026962A1 (de) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007095902A1 (de) * | 2006-02-25 | 2007-08-30 | Mtu Aero Engines Gmbh | Verfahren zur herstellung und reparatur eines integral beschaufelten rotors |
| DE102014205062A1 (de) * | 2014-03-19 | 2015-03-12 | Voith Patent Gmbh | Vorrichtung und Verfahren zur Herstellung eines Pelton-Laufrades |
| EP3034228A3 (de) * | 2014-12-17 | 2016-07-27 | Rolls-Royce plc | Verfahren zur herstellung eines integral beschaufelten rotors für eine turbomaschine |
| CN104551533B (zh) * | 2013-10-21 | 2017-02-22 | 哈尔滨飞机工业集团有限责任公司 | 一种用于切割复合材料主桨叶后缘的数控加工方法 |
| US10689989B2 (en) | 2014-11-14 | 2020-06-23 | Safran Aircraft Engines | Method for friction-welding a blade to a turbomachine vane, including a surfacing process |
| US11401813B2 (en) | 2016-09-22 | 2022-08-02 | Sulzer Management Ag | Method for manufacturing or for repairing a component of a rotary machine as well as a component manufactured or repaired using such a method |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007027327A1 (de) * | 2007-06-14 | 2008-12-18 | Mtu Aero Engines Gmbh | Induktionsspule, Verfahren und Vorrichtung zur induktiven Erwärmung von metallischen Bauelementen |
| DE102008008049A1 (de) * | 2008-02-08 | 2009-08-20 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Heizvorrichtung für eine Turbinenschaufel und ein Verfahren zum Schweißen |
| DE102009010025B4 (de) * | 2009-02-21 | 2011-06-22 | MTU Aero Engines GmbH, 80995 | Verfahren zum Herstellen eines integral beschaufelten Rotors |
| DE102009033835B4 (de) | 2009-07-18 | 2012-01-19 | Mtu Aero Engines Gmbh | Verfahren zum Austauschen einer Schaufel eines Rotors mit integrierter Beschaufelung und ein derartiger Rotor |
| DE102017200233B4 (de) * | 2017-01-10 | 2022-05-05 | Sauer Gmbh | Verfahren zum verkleinern oder vollständigen verschliessen einer öffnung einer werkstückinnenkontur mittels eines durch eine laser-auftragschweiss-vorrichtung aufgeschmolzenen materials |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4574451A (en) * | 1982-12-22 | 1986-03-11 | General Electric Company | Method for producing an article with a fluid passage |
| US5038014A (en) * | 1989-02-08 | 1991-08-06 | General Electric Company | Fabrication of components by layered deposition |
| US5233150A (en) * | 1991-01-21 | 1993-08-03 | Sulzer Brothers Limited | Method of production of workpieces by welding equipment |
| US5511949A (en) * | 1993-01-06 | 1996-04-30 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" | Method for producing a monobloc rotor with hollow blades and monobloc rotor with hollow blades obtained by said method |
| US5701669A (en) * | 1995-12-21 | 1997-12-30 | Mtu Motoren- Und Turbinen-Union Muenchen Gmbh | Repair method for lengthening turbine blades |
| WO2000037210A1 (de) * | 1998-12-18 | 2000-06-29 | MTU MOTOREN- UND TURBINEN-UNION MüNCHEN GMBH | Schaufel und rotor für eine gasturbine und verfahren zum verbinden von schaufelteilen |
| US6269540B1 (en) * | 1998-10-05 | 2001-08-07 | National Research Council Of Canada | Process for manufacturing or repairing turbine engine or compressor components |
| EP1239116A2 (de) * | 2001-03-07 | 2002-09-11 | General Electric Company | Gerippter Integralrotor |
| WO2005016588A2 (de) * | 2003-08-18 | 2005-02-24 | Mtu Aero Engines Gmbh | Verfahren zur herstellung und/oder reparatur von bauteilen für gasturbinen |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2347034A (en) * | 1942-03-28 | 1944-04-18 | Gen Electric | Turbine bucket wheel and the like |
| US4451208A (en) * | 1981-06-19 | 1984-05-29 | Jerzy Kolecki | Propeller |
| US4873751A (en) * | 1988-12-27 | 1989-10-17 | United Technologies Corporation | Fabrication or repair technique for integrally bladed rotor assembly |
| DE19603388C1 (de) * | 1996-01-31 | 1997-07-24 | Mtu Muenchen Gmbh | Einrichtung zur Fixierung der Laufschaufeln am Laufrad, insbesondere einer Turbine eines Gasturbinentriebwerks, durch Nietung |
-
2004
- 2004-09-10 DE DE102004043746A patent/DE102004043746B4/de not_active Expired - Fee Related
-
2005
- 2005-09-03 WO PCT/DE2005/001542 patent/WO2006026962A1/de not_active Ceased
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4574451A (en) * | 1982-12-22 | 1986-03-11 | General Electric Company | Method for producing an article with a fluid passage |
| US5038014A (en) * | 1989-02-08 | 1991-08-06 | General Electric Company | Fabrication of components by layered deposition |
| US5233150A (en) * | 1991-01-21 | 1993-08-03 | Sulzer Brothers Limited | Method of production of workpieces by welding equipment |
| US5511949A (en) * | 1993-01-06 | 1996-04-30 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" | Method for producing a monobloc rotor with hollow blades and monobloc rotor with hollow blades obtained by said method |
| US5701669A (en) * | 1995-12-21 | 1997-12-30 | Mtu Motoren- Und Turbinen-Union Muenchen Gmbh | Repair method for lengthening turbine blades |
| US6269540B1 (en) * | 1998-10-05 | 2001-08-07 | National Research Council Of Canada | Process for manufacturing or repairing turbine engine or compressor components |
| WO2000037210A1 (de) * | 1998-12-18 | 2000-06-29 | MTU MOTOREN- UND TURBINEN-UNION MüNCHEN GMBH | Schaufel und rotor für eine gasturbine und verfahren zum verbinden von schaufelteilen |
| EP1239116A2 (de) * | 2001-03-07 | 2002-09-11 | General Electric Company | Gerippter Integralrotor |
| WO2005016588A2 (de) * | 2003-08-18 | 2005-02-24 | Mtu Aero Engines Gmbh | Verfahren zur herstellung und/oder reparatur von bauteilen für gasturbinen |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007095902A1 (de) * | 2006-02-25 | 2007-08-30 | Mtu Aero Engines Gmbh | Verfahren zur herstellung und reparatur eines integral beschaufelten rotors |
| CN104551533B (zh) * | 2013-10-21 | 2017-02-22 | 哈尔滨飞机工业集团有限责任公司 | 一种用于切割复合材料主桨叶后缘的数控加工方法 |
| DE102014205062A1 (de) * | 2014-03-19 | 2015-03-12 | Voith Patent Gmbh | Vorrichtung und Verfahren zur Herstellung eines Pelton-Laufrades |
| US10689989B2 (en) | 2014-11-14 | 2020-06-23 | Safran Aircraft Engines | Method for friction-welding a blade to a turbomachine vane, including a surfacing process |
| EP3034228A3 (de) * | 2014-12-17 | 2016-07-27 | Rolls-Royce plc | Verfahren zur herstellung eines integral beschaufelten rotors für eine turbomaschine |
| US9950388B2 (en) | 2014-12-17 | 2018-04-24 | Rolls-Royce Plc | Method of producing an integrally bladed rotor for a turbomachine |
| US11401813B2 (en) | 2016-09-22 | 2022-08-02 | Sulzer Management Ag | Method for manufacturing or for repairing a component of a rotary machine as well as a component manufactured or repaired using such a method |
| US11845131B2 (en) | 2016-09-22 | 2023-12-19 | Sulzer Management Ag | Method for manufacturing or for repairing a component of a rotary machine as well as a component manufactured or repaired using such a method |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102004043746A1 (de) | 2006-03-16 |
| DE102004043746B4 (de) | 2008-09-25 |
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