EP4334055A1 - Procédé de fabrication d'une aube de turbomachine - Google Patents
Procédé de fabrication d'une aube de turbomachineInfo
- Publication number
- EP4334055A1 EP4334055A1 EP22724815.0A EP22724815A EP4334055A1 EP 4334055 A1 EP4334055 A1 EP 4334055A1 EP 22724815 A EP22724815 A EP 22724815A EP 4334055 A1 EP4334055 A1 EP 4334055A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ribs
- blade
- air stream
- heel
- zone
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1017—Multiple heating or additional steps
- B22F3/1021—Removal of binder or filler
-
- 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
- F01D5/141—Shape, i.e. outer, aerodynamic form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
- B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/04—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of turbine blades
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/638—Removal thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F2003/1042—Sintering only with support for articles to be sintered
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/247—Removing material: carving, cleaning, grinding, hobbing, honing, lapping, polishing, milling, shaving, skiving, turning the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F2005/005—Article surface comprising protrusions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/24—Producing shaped prefabricated articles from the material by injection moulding
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/602—Making the green bodies or pre-forms by moulding
- C04B2235/6022—Injection moulding
-
- 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
- F05D2220/323—Application in turbines in gas turbines for aircraft propulsion, e.g. jet engines
-
- 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
- F05D2230/21—Manufacture essentially without removing material by casting
-
- 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
- F05D2230/22—Manufacture essentially without removing material by sintering
-
- 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
- F05D2230/40—Heat treatment
-
- 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
-
- 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
- F05D2300/174—Titanium alloys, e.g. TiAl
Definitions
- the invention relates to the manufacture of turbomachine blades.
- feedstock a mixture of metal powder and polymer binder. This mixture forming a granulate, called “feedstock”, is extruded then cut into flakes or pellets to be used in an injection press.
- a “grey” part is obtained, composed of the material of the powder only and having shrunk in relation to the volume of the molding due to the spaces left by the binder. According to the processes, it is possible to obtain parts having a density of 95% to 99.5% for different applications. The piece is then finished.
- metal powder injection molding allows the production of medium-sized and large series of small parts for a vast market. Being part of the family of techniques by replication, it is very economical in raw material (for the powder part). It creates no waste and no oil is used.
- the thermal variations to which the blade is subjected during manufacture can cause deformations or cracks. This is all the more noticeable as the blades are generally asymmetrical and have thicknesses at certain locations which are up to 3.5 times greater than the thickness at another location of the blade.
- An object of the invention is therefore to make the manufacture of turbomachine blades easier and more reliable, in particular by injection of metal powder.
- a part comprising a foot, a heel and an air vein zone extending between the foot and the heel, the air vein zone comprising at least one protuberance projecting from one face main area, manufacturing taking place by injection of a mixture comprising a binder and a powder, the powder comprising at least one metal or one ceramic;
- the part is debinded so as to eliminate a greater part of the binder from the part;
- the protrusion(s) can have different functions, namely serving as a support for the part during manufacture and/or as a stiffener. They thus make it possible to avoid the appearance of deformation phenomena such as subsidence, torsion, bending and buckling and mechanical stresses related to the manufacturing process.
- the invention thus allows the manufacture of elongated parts of complex geometry, in particular asymmetrical, and to control the dimensions of the part, while making possible a shrinkage of the material of between 10 and 27% during manufacture.
- the invention allows high-speed production. It reduces material losses during manufacturing. The entire manufacturing can be done with an optimized budget.
- the part is in contact with a support via the protrusion or protrusions.
- the protrusions therefore serve here as support integrated into the part to prevent its deformation, in particular its sagging, during manufacture. This may be for example the sintering step when implementing the metal powder injection technique.
- the protrusion or at least one of the protrusions is a rib.
- the or one of the ribs has a circular, oval or elliptical shape
- the ribs are at least two in number and comprise at least two transverse ribs each extending from a first longitudinal edge of the air stream area to a second longitudinal edge of the air stream area;
- transverse ribs are spaced from each other by a distance of between 5 and 25 mm;
- the ribs are at least two in number and comprise at least two radial ribs each located in alignment with the same midpoint of the air stream zone; - at least one of the radial ribs extends to the foot or to the heel.
- At least one of the radial ribs extends as far as a longitudinal edge of the air stream zone
- At least one of the transverse ribs intercepts at least one of the radial ribs
- the protrusion or protrusions form an arrangement having a plane of symmetry or a center of symmetry
- the protrusion or protrusions have a thickness of between 1 and 8 mm;
- the protrusion or protrusions have a connection zone with the main face having a radius of between 0.2 and 2 mm;
- the part is made of a titanium and aluminum alloy.
- This or these edges thus serve as a support face for the part during manufacture.
- Such a blade may have, macroscopically, a shape and dimensions identical to those of a blade manufactured by means of a process of the prior art. However, it differs in its microscopic structure. Thus, it has a grain size on average larger than that of the blade obtained by a method of the prior art and it offers better resistance to creep.
- a turbomachine comprising at least one blade according to the invention is provided.
- the blade comprising a root, a heel and an area of air vein extending between the foot and the heel, and
- This part constitutes the intermediate product obtained during the implementation of the first step of the method of the invention, before the elimination of the rib(s).
- FIG. 1 is a perspective view of the basic shape of an intermediate part obtained in one embodiment of the method of the invention
- FIG. 2 is a view showing such an intermediate piece on the intrados side
- FIG. 5 is a view similar to Figure 4 showing the blade obtained from this intermediate piece.
- FIG. 6 is a sectional view of an aircraft turbojet incorporating such a blade.
- an intermediate piece 4 comprising a blade is manufactured. This part is illustrated in principle in Figure 1 and in detail in Figures 2 to 4.
- the part and the blade thus comprise a root 6, a heel 8 and a blade or air vein zone 10 extending between the root and the heel.
- the air stream zone 10 has two main faces, namely an intrados face 12 visible in Figures 1 and 2 and an extrados face 14, visible in Figures 3 and 4.
- the two faces are delimited by an edge leading 16 and a trailing edge 18 forming the two longitudinal edges of the blade.
- Each main face 12, 14 extends from the foot to the heel.
- the air stream zone 10 comprises protrusions, here forming ribs, projecting from the lower surface 12, as illustrated in FIGS. 1 and 2.
- One of the ribs forms a closed central loop and in this case has an elliptical shape.
- the major axis of the ellipse is generally parallel to the edges 16 and 18.
- the rib has a center of symmetry 22 located to the right of a barycenter 22 of the part and/or of the blade and coincides with the latter in the figures . This barycenter 22 forms a median and central point of the dawn.
- the air stream zone 10 also comprises in this case transverse ribs 24 each extending from the leading edge 16 to the trailing edge 18.
- the transverse ribs 24 are curved, which further reduces the risk of appearing harmful phenomena such as cracks.
- Each transverse rib 24 has a center of curvature located on the same side of the rib as the center of the ellipse 22.
- the transverse ribs 24 are here four in number, namely two between the elliptical rib 20 and the foot 6 and two others between the elliptical rib 20 and the heel 8.
- the adjacent transverse ribs 24 are spaced from each other by a distance of between 5 and 25 mm.
- the air stream zone 10 also comprises in this case radial rectilinear ribs 26 each located in alignment with the center 22 of the air stream zone.
- each radial rib 26 is interrupted before reaching this midpoint and therefore does not reach it, this point 22 would be on the rib if it were extended straight.
- All the radial ribs 26 here have a first end located on the elliptical rib 20 from which the radial ribs radiate. Two of the radial ribs 26 extend to the foot 6. Two others extend to the heel 8. These ribs can be described as longitudinal because they extend over a large part of the length (over a third) of the air stream zone 10 and in a slightly inclined direction with respect to the longitudinal direction. In this case, they each intercept two of the transverse ribs 24, which amounts to saying that they are intercepted by the latter. Several other radial ribs 26, in this case four , extend to the trailing edge 18. In addition, several other radial ribs 26, in this case six, extend to the leading edge 16
- All the ribs 20, 24 and 26 form in this example an arrangement generally having a plane of symmetry. It even has two planes of symmetry perpendicular to each other and corresponding to the axes of the ellipse, so that the arrangement has a center of symmetry coincident with the center 22.
- the arrangement of the ribs here resembles that of a spider's web.
- Ribs are also present inside the looped rib 20. These include a rectilinear rib 34 occupying the entire major axis of the ellipse and a rib 36 occupying half of the minor axis, as shown in Figure 2.
- the ribs extend only over the intrados face 12, the extrados face 14 remaining completely devoid of ribs.
- the manufacturing implements an injection of metal powder. Manufacturing takes place by means of injection molding from a mixture of metal powder and polymer binder.
- the metal powder here is an alloy of titanium and aluminum such as Ti-48Al-2Cr-2Nb (in atomic %) commonly referred to as TiAl 48-2-2)
- This binder is then removed during the debinding operation, which gives the “brown” part. In this part, almost all of the binder has been removed and it is composed of approximately 40% air, and is bound only by the remnants of the binder. It must then be sintered, a step during which it is subjected to a temperature close to the melting point of the powder, for example greater than 1200°C.
- This part 4 is made in one piece. During the debinding and sintering operations, the part rests on a flat support, the ribs 20, 24, 26 being located in the lower part and the extrados face 14 facing upwards. The edge 30 of the ribs therefore rests on the flat support and is in contact with the latter. It provides local support for the air vein area. The piece also rests on the manufacturing support by the foot 6 and the heel 8.
- the ribs 20, 24, 26 form not only a support but also stiffeners which make it possible to preserve the shape of the part and its integrity during these operations, in particular during sintering and then cooling.
- the ribs 20, 24, 26 are removed from the air stream zone, for example by machining.
- a part is then obtained consisting of the single blade 32 illustrated in FIG. 5.
- the blade comprises the root 6, the heel 8 and the air stream zone 10. are smooth and free of any protuberance.
- the air vein zone 10 has a thickness which is approximately 3.5 times less than that of the foot 6 and the heel 8. This difference can have a significant impact during the cooling and shrinkage of the part in the absence of the protuberances.
- the ribs are precisely arranged and dimensioned as explained above in order to reduce this ratio from 3.5 to approximately 2 in this case.
- the central portion of the airstream area is made more massive with the protuberances.
- the air stream zone 10 would collapse during manufacture. This is the reason why the ribs are arranged on the air stream area, in order to support it.
- the ribs that run in different directions and at different places in the part help to avoid the different types of deformation that the blade would otherwise be exposed to during manufacture.
- the ribs are evenly distributed, in particular so that the support points of the part on the manufacturing support are also evenly distributed.
- the arrangement of the ribs takes into account a reference point which remains fixed throughout the manufacture of the part which is the center of gravity 22 thereof.
- the ribs are arranged according to this point, or even from it. Indeed, taking into account the position of the center of gravity 22 of the assembly makes it possible to better control the shrinkage inherent in the process.
- each rib here has a thickness of between 1 and 8 mm. It is indeed preferable to give a large width to the stiffeners. If they are too thin, they are difficult to inject and become deformed when the part is removed. In our case, the choice of the range is linked to the minimum thicknesses of the part.
- each rib in this case has a connection zone with the intrados face 12 having a radius of between 0.2 and 2 mm, which makes it possible to promote injection and to eliminate concentrations of internal stresses. This condition on the dimension of the radii makes it possible to limit cracking phenomena, to make injection more favorable and to avoid tearing when the part is ejected from the mould.
- the blade 32 is intended to be part of an aircraft turbojet engine 100 forming here a turbomachine with double flow and double body like that illustrated in FIG. 6.
- the turbomachine has a main axis X-X which serves as a axis of rotation of the rotor relative to the stator.
- the high pressure compressor 7, the combustion chamber 9 and the high pressure turbine 11 form a high pressure body, which together with the low pressure compressor 5 and the low pressure turbine 13 define a main stream of air flow.
- a nacelle surrounds the fan 2 and the central part so as to form a fan compartment and to define a secondary airflow vein.
- the turbines 11, 13 include blades 32 made by means of the invention.
- the invention is applicable to other manufacturing technologies, for example feedstock printing and feedstock compacting.
- the manufacture could also take place according to the binder jetting printing technique.
- the latter is an additive manufacturing method that works by spraying binder onto a powder.
- An automated roller spreads a thin layer of powder on a build plate.
- a printhead applies a liquid binder to the powder, creating a layer of the object.
- the printing platform carrying the tray descends slightly to allow the addition of a new layer of powder.
- the process is thus repeated until the creation of the object.
- the excess powder is then sucked up and the object is dusted with compressed air.
- the printed part is placed in an oven for baking or sintered.
- a finishing treatment can improve the condition of the printed part.
- the ribs of the intermediate product thus produced are then removed to obtain the blade itself.
- the invention relating to the manufacture of metal parts, in particular by the process of injection of metal powder, it can be used in all technical fields.
- the protrusions may be other than ribs and have other shapes than those presented above and be round, square, star-shaped, stud-shaped, half-ball, etc. They can provide a stiffening function without providing a support function and vice versa.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2104869A FR3122592B1 (fr) | 2021-05-07 | 2021-05-07 | Procédé de fabrication d'une aube de turbomachine |
| PCT/FR2022/050856 WO2022234229A1 (fr) | 2021-05-07 | 2022-05-03 | Procédé de fabrication d'une aube de turbomachine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4334055A1 true EP4334055A1 (fr) | 2024-03-13 |
Family
ID=77317067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22724815.0A Pending EP4334055A1 (fr) | 2021-05-07 | 2022-05-03 | Procédé de fabrication d'une aube de turbomachine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20240287905A1 (fr) |
| EP (1) | EP4334055A1 (fr) |
| CN (1) | CN117615869A (fr) |
| FR (1) | FR3122592B1 (fr) |
| WO (1) | WO2022234229A1 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3133551A1 (fr) | 2022-03-18 | 2023-09-22 | Safran Aircraft Engines | Procédé de fabrication d’une aube de turbomachine |
| FR3151513A1 (fr) * | 2023-07-26 | 2025-01-31 | Safran Aircraft Engines | Pièce obtenue par injection de poudre |
| FR3163400A1 (fr) * | 2024-06-18 | 2025-12-19 | Safran Aircraft Engines | Aube de turbomachine et procede de fabrication par moulage par injection metallique |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005019077A1 (de) * | 2005-04-23 | 2006-10-26 | Mtu Aero Engines Gmbh | Schaufel einer Strömungsmaschine und Verfahren zur Herstellung und/oder Reparatur derselben |
| FR2944721B1 (fr) * | 2009-04-24 | 2014-03-07 | Snecma | Procede de fabrication d'un aubage par moulage par injection de poudre metallique |
| DE102015210770A1 (de) * | 2015-06-12 | 2016-12-15 | Rolls-Royce Deutschland Ltd & Co Kg | Bauteilkonstruktion, Bauteil für eine Gasturbine und Verfahren zur Herstellung eines Bauteils einer Gasturbine durch Metallpulverspritzgießen |
| FR3037831B1 (fr) * | 2015-06-26 | 2019-08-16 | Alliance | Fabrication d'un secteur courbe d'anneau de turbine par moulage et frittage |
| US10253986B2 (en) * | 2015-09-08 | 2019-04-09 | General Electric Company | Article and method of forming an article |
| FR3063663B1 (fr) * | 2017-03-13 | 2021-02-26 | Mecachrome France | Procede de fabrication de pieces en alliage metallique de forme complexe |
| US10940535B2 (en) * | 2018-06-08 | 2021-03-09 | General Electric Company | Method and system for additive manufacturing |
-
2021
- 2021-05-07 FR FR2104869A patent/FR3122592B1/fr active Active
-
2022
- 2022-05-03 CN CN202280033692.2A patent/CN117615869A/zh active Pending
- 2022-05-03 WO PCT/FR2022/050856 patent/WO2022234229A1/fr not_active Ceased
- 2022-05-03 US US18/289,636 patent/US20240287905A1/en active Pending
- 2022-05-03 EP EP22724815.0A patent/EP4334055A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US20240287905A1 (en) | 2024-08-29 |
| FR3122592B1 (fr) | 2024-01-19 |
| CN117615869A (zh) | 2024-02-27 |
| WO2022234229A1 (fr) | 2022-11-10 |
| FR3122592A1 (fr) | 2022-11-11 |
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