WO2023047030A1 - Procede de preparation d'un pied d'une aube de turbomachine - Google Patents
Procede de preparation d'un pied d'une aube de turbomachine Download PDFInfo
- Publication number
- WO2023047030A1 WO2023047030A1 PCT/FR2022/051613 FR2022051613W WO2023047030A1 WO 2023047030 A1 WO2023047030 A1 WO 2023047030A1 FR 2022051613 W FR2022051613 W FR 2022051613W WO 2023047030 A1 WO2023047030 A1 WO 2023047030A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- blade
- root
- wear layer
- preparing
- composite material
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000003754 machining Methods 0.000 claims abstract description 17
- 239000002131 composite material Substances 0.000 claims abstract description 16
- 229920002994 synthetic fiber Polymers 0.000 claims abstract description 13
- 238000002360 preparation method Methods 0.000 claims description 12
- 239000012209 synthetic fiber Substances 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000006116 polymerization reaction Methods 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000007767 bonding agent Substances 0.000 abstract 2
- 239000011888 foil Substances 0.000 description 8
- 239000000243 solution Substances 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 6
- 239000002184 metal Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 230000008570 general process Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
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- 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
- F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
- F01D5/282—Selecting composite materials, e.g. blades with reinforcing filaments
-
- 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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
- F01D5/288—Protective coatings for 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
- F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
-
- 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
- F01D5/3092—Protective layers between blade root and rotor disc surfaces, e.g. anti-friction layers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
- F04D29/322—Blade mountings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/64—Mounting; Assembling; Disassembling of axial pumps
- F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
-
- 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
- F05D2230/40—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
- 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
- F05D2260/00—Function
- F05D2260/94—Functionality given by mechanical stress related aspects such as low cycle fatigue [LCF] of high cycle fatigue [HCF]
-
- 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
- F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
- F05D2300/603—Composites; e.g. fibre-reinforced
-
- 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
- F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
- F05D2300/611—Coating
Definitions
- TITLE PROCESS FOR PREPARING A TURBOMACHINE BLADE FOOT
- the technical field of the invention is that of the preparation of a turbine engine blade root with a view to its mounting in a root support.
- the invention relates more particularly to the preparation and mounting of a fan blade in a fan disc of a turbomachine.
- the invention also relates to a turbomachine blade obtained by such a process as well as a rotor assembly of a turbomachine.
- upstream and downstream are defined with respect to the normal flow direction of the gas (from upstream to downstream) through a turbomachine.
- the axis of rotation of a rotor of the turbomachine is also referred to as the "turbomachine axis" or "engine axis".
- the axial direction corresponds to the direction of the axis of the turbomachine and a radial direction is a direction perpendicular to the axis of the turbomachine and intersecting this axis.
- an axial plane is a plane containing the axis of the turbomachine, and a radial plane is a plane perpendicular to this axis.
- a turbomachine comprises, upstream to downstream, that is to say in the direction of flow of the gas flows, a fan, one or more compressors, a combustion chamber, one or more turbines, and a nozzle for ejecting the combustion gases leaving the turbine or turbines.
- a rotor system ie an assembly integral with the rotor
- the (moving) blades are fixed to a rotor disk by attachment systems, this may be a rectilinear or curvilinear broached attachment, hammer , or fir tree.
- attachment systems can be described as being devices in which the blade roots form the male parts of the system and are retained radially in the female parts of the system, provided at the outer periphery of the disc and commonly referred to as cells.
- the blades are mainly subjected to centrifugal forces as well as to axial aerodynamic forces and the blade roots come to rest against the parts of the disc bordering the outer opening of the cells. , under the effect of centrifugal forces.
- the surfaces of the blade roots and the disc, in abutment against each other, are commonly referred to as "seats".
- These spans are subjected to a pressure (resulting from said forces, applied to the surface of these spans). It can be estimated that this pressure depends as a first approximation on the square of the speed of rotation of the rotor.
- An alternative to foil consists in introducing as the third body a non-metallic “anti-wear” film comprising resistant fibers impregnated with resin at the level of the blade/disc contact interface.
- blades are made of composite material, but their surface condition is not flat enough and it is not (or very difficult) possible to machine these bearing surfaces without degrading and/or altering the fibers.
- the coating that protects the composite from wear is expensive, its range of application often generates non-conformities (in location) and does not completely solve the problem of the surface condition. This incurs additional costs (repairs, in the factory, etc.).
- An object of the invention is to propose an alternative solution to the solutions of the state of the art, more effective than the solutions described above, in terms of "anti-wear” performance, so as to better protect the bearing surfaces. of the blades and of the disc and guaranteeing satisfactory flatness.
- the invention seeks to propose a method for preparing a blade root for mounting a turbomachine blade made of composite material in a root support, for example a rotor disk cavity in order to improve the mechanical resistance of the parts to the contact pressure, while allowing a very easy and fast implementation of this process.
- the subject of the invention is a method for preparing a blade root for mounting a turbomachine blade made of composite material in a root support, characterized in that it comprises: a first step of positioning on a side wall of the blade root an anti-wear layer comprising synthetic fibers coated or impregnated with a tackifier; a second step of polymerization of the adhesive agent so that said anti-wear layer adheres to the side wall of the blade root; a third step of machining a free outer surface (of said anti-wear layer intended to be in contact with the foot support, so as to obtain a ground outer surface.
- the machining step makes it possible to reduce the thickness of the anti-wear layer so as to pass from an initial thickness (ei) to a final thickness (et), the initial thickness corresponding to the thickness of the anti-wear layer during the positioning step.
- the initial thickness of the anti-wear layer (200) is greater than 1 millimeter.
- the anti-wear layer is thick enough to be handled easily and has enough material to be ground so as to obtain a final thickness of the order of a few tenths of a millimeter.
- the machining step is carried out by taking as the machining reference of the free outer surface of said anti-wear layer, the machining reference of the blade root.
- the anti-wear layer comprises at least one woven ply of synthetic fibers, for example glass fibers.
- the synthetic fibers thereof are pre-coated with a tackifier, on the surface or in bulk.
- the tackifier is a heat-polymerizable adhesive.
- the tackifier polymerization step is carried out by placing the assembly comprising at least the blade root and the anti-wear layer in an autoclave brought to a temperature allowing the polymerization of the agent sticky, for a predetermined minimum duration.
- the blade root can be coated with a metal foil.
- the wear-resistant layer is positioned on a surface of the shim intended to be in contact with the foot support.
- the invention also relates to a method for mounting the turbine engine blade root in a root support comprising a preparation step according to the method of the invention.
- the invention also relates to a method for repairing a turbine engine blade root consisting in removing, partially or totally, a damaged anti-wear member and preparing the blade root according to the method of the 'invention.
- the preparation process according to the invention can be integrated both into a process for mounting a turbine engine blade root and for repairing the bearing surfaces of the blade root.
- the invention also relates to a turbomachine blade having an anti-wear member with a ground surface making it possible to be more effective than the solutions of the state of the art, in terms of "anti-wear” performance. , flatness, so as to better protect the bearing surfaces of the blades and of the disc.
- the root of the blade comprises, at the level of a bearing surface, at least one anti-wear layer comprising synthetic fibers and having a rectified outer surface.
- the surface condition, and in particular the flatness, of the outer surface intended to come into contact with the bearing surface of the foot support is improved and controlled.
- a turbomachine rotor assembly comprising a rotor disk having cells on its outer periphery and a plurality of blades according to the invention fixed by their roots in said cells.
- the invention also relates to a turbomachine comprising a rotor assembly according to the invention.
- Figure 1 shows a partial cross-sectional view of a fan blade showing the mounting of the root of the blade in a slot of a rotor disc, the blade being subjected to centrifugal forces.
- FIG. 2 is a block diagram illustrating the main steps of the foot preparation process according to the invention.
- Figure 3 a schematic view in partial cross section of the foot of a fan blade according to the first step of the method according to the invention.
- Figure 4 is a schematic view in partial cross section of the foot of a fan blade according to the third step of the method according to the invention.
- the [fig 1] shows a partial cross-sectional view of a fan blade 12 whose root 121 is housed in a root support, and more particularly a cell 101 of a rotor disc 10, the blade being subjected to centrifugal forces.
- the invention will be described mainly by taking as an example an assembly of a fan blade in a foot support formed by a fan rotor disk.
- the present invention is not limited to fan blade assemblies in a fan rotor disc.
- the invention is also applicable to other turbomachine moving blade assemblies.
- the invention is applicable to any composite part where flatness is important, in particular all composite parts interfaced with a metal part for which rectification is necessary.
- These composite parts are formed from a woven preform which is injected with a resin.
- This preform can be 2D or 3D.
- the fan blade is made from a 3D woven preform.
- the present invention applies to stationary vanes and associated supports, such as casings or flanges supporting stationary vanes.
- a mobile fan blade 12 is formed by two assemblies: a lower part called the foot 121, an upper part formed by the blade (not shown).
- the moving fan blade 12 extends along a longitudinal axis Z. It will be noted that the longitudinal axis Z of the moving fan blade 12 is perpendicular to the axis of rotation of the fan.
- Each cell 101 of the rotor disc 10 has a shape substantially complementary to the shape of the root 121 of the blade 12 to form a dovetail-type assembly.
- the cells 101 are distributed radially equidistantly all along the circumference of the rotor disk 10, and the opening of the cell is directed towards the outside.
- each foot 121 of a blade 12 has an outline symmetrical with two side walls 122, forming the sides of the root 121, diverging with respect to each other from the body of the blade 12 in the direction of the free end of the root 121 of the blade 12, until to a bottom wall 124 substantially parallel to the axis of rotation of the fan and to the periphery of the rotor disc 10, and orthogonal to the main longitudinal direction Z of the corresponding blade 12.
- the cells 101 have a similar shape with side walls 102 inclined outward from the circumference towards the inner portion of the rotor disc 10 to a bottom wall 104.
- the dimensions of the root 121 of the blade 12 and of the cell 101 are such that when the rotor disk 10 is at rest, the root 121 is retained in the cell 101, the bottom wall 124 of the root 121 then being able to touch the bottom wall 104 of the cell 101.
- a spacer may be present.
- the rotation of the rotor disc 10 around the central axis causes a movement of the blades 12 in the radial direction outwards due to centrifugal forces, it that is to say in the direction of the arrow 13 of [fig 1], substantially parallel to the longitudinal axis Z of the blade 12.
- the side walls 122 of the root 121 of the blade 12 bear against the side walls 102 of the cell 101, which makes it possible to ensure the retention of the blade 12 inside the cell 101, that is to say its connection with the disc impeller 10.
- the deterioration of fatigue and wear which occurs on the surfaces in contact with the side walls 102 and 122 due to the relative movement between the root 121 of the blade 12 and the cell 101 of the rotor 10 are reduced by the use of a rectified anti-wear layer 200, positioned at the level of the bearing surfaces 14 between the side wall 122 of the foot 121 and the side wall 102 of the cell 101.
- the anti-wear layer 200 is composed of synthetic fibers.
- the anti-wear layer 200 is composed of at least one synthetic fiber fabric.
- the anti-wear layer 200 is composed of at least one fabric made from glass fibers and/or aramid fibers.
- This anti-wear layer 200 adheres to the outer surface of the foot 121 with a tackifier coating or impregnating the synthetic fibers of the layer 200, at least on the face of the layer 200 to adhere.
- the sticking agent is, for example, a heat-polymerizable synthetic glue.
- the sticking agent is for example a resin and advantageously a phenolic or polyurethane resin.
- the anti-wear layer 200 has a first outer face 210a and a second inner face 220 intended to stick to a side wall 122 of the foot 121.
- This anti-wear layer 200 has a significant initial thickness ei greater than 1 millimeter, and advantageously of the order of 2 millimeters.
- the so-called initial thickness ei of the anti-wear layer 200 corresponds to its thickness during manufacture and during bonding to the root 121 of blade 12.
- an anti-wear layer 200 is positioned on each side wall of the foot 121 at the level of the bearing surfaces 14, as illustrated in [fig 3],
- This anti-wear layer 200 adheres to the outer surface of the foot 121 via the adhesive agent coating or impregnating the synthetic fibers of the layer 200.
- the anti-wear layer is not pre-impregnated before its positioning
- the synthetic fibers of the anti-wear layer wear 200 when the latter is in position on the foot 121.
- the impregnation is carried out at the same time as the injection of the blade preform.
- a second step 320 consists in polymerizing the sticky agent.
- the assembly formed by the root 121 of the blade 12 and the anti-wear layer 200 is pressurized with the tackifier until the tacky agent has polymerized.
- the pressure used is of the order of 7 to 14 MPa. This ensures good adhesion of the glue over the entire surface as well as the evacuation of solvents.
- the polymerization is carried out, for example, at a temperature of between 150° C. and 180° C. for a period of 1 hour.
- a thick anti-wear layer 200 is thus obtained, of thickness ei, adhering perfectly to the side wall 122 of the foot 121.
- the thickness ei of the wear-resistant layer 200 is greater than the operating and assembly play between the foot 121 and the cell 101, so that an assembly in the state n is not possible.
- the surface condition and in particular the flatness of the outer face 210a is substantially identical to the surface condition of the side wall 122 of the foot 121 .
- the surface state of the wear-resistant layer 200 has flatness defects.
- the root 121 of the blade 12 can be cleaned to remove the excess sticky agent that has leaked, by sandblasting for example with glass beads.
- a third step 330 the outer face 210a of the anti-wear layer 200 bonded to the root 121 of blade 12 is machined. Machining makes it possible to reduce the thickness of the anti-wear layer 200 and to grinding the outer face 210a so as to obtain a flat ground outer face 210b as illustrated in FIG. 4. This machining step makes it possible to control the final thickness and of the wear-resistant layer 200 and to improve the surface than the flatness tolerances of the outer surface 210b.
- the anti-wear layer 200 After machining, the anti-wear layer 200 has a final thickness of the order of a few tenths of a millimeter, advantageously of the order of 0.3 millimeters.
- the machining of the outer face 210a of the anti-wear layer 200 is carried out by taking as reference the reference for machining the side faces 122 of the root 121 of the blade 12, which makes it possible to control the orientation and the thickness of the anti-wear layer 200. A better positioning of the root 121 of the blade 12 in the cell 101 of the rotor disk 10 is then ensured, as well as a better distribution of the stresses.
- the preparation process 300 described above can be integrated into a process for manufacturing a turbine engine blade.
- the preparation method 300 described above can also be integrated into a more general method of mounting a blade 12 in a rotor disc 10 or even a rotor assembly.
- the preparation process 300 described above can also be integrated into a more general process for repairing an anti-wear member at the junction between the blade root and the cell, whether the initial assembly was produced in accordance with the invention or with another type of anti-wear member, whether metallic or non-metallic.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Composite Materials (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18/694,821 US20240287910A1 (en) | 2021-09-24 | 2022-08-26 | Method for preparing a root of a turbomachine blade |
EP22773281.5A EP4405568A1 (fr) | 2021-09-24 | 2022-08-26 | Procede de preparation d'un pied d'une aube de turbomachine |
CN202280071931.3A CN118103582A (zh) | 2021-09-24 | 2022-08-26 | 用于制备涡轮机叶片的根部的方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2110098A FR3127522A1 (fr) | 2021-09-24 | 2021-09-24 | Procede de preparation d’un pied d’une aube de turbomachine |
FRFR2110098 | 2021-09-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023047030A1 true WO2023047030A1 (fr) | 2023-03-30 |
Family
ID=79269635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2022/051613 WO2023047030A1 (fr) | 2021-09-24 | 2022-08-26 | Procede de preparation d'un pied d'une aube de turbomachine |
Country Status (5)
Country | Link |
---|---|
US (1) | US20240287910A1 (fr) |
EP (1) | EP4405568A1 (fr) |
CN (1) | CN118103582A (fr) |
FR (1) | FR3127522A1 (fr) |
WO (1) | WO2023047030A1 (fr) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1085172A2 (fr) * | 1999-09-17 | 2001-03-21 | General Electric Company | Fixation d'une aube en composite |
FR2890126A1 (fr) | 2005-08-26 | 2007-03-02 | Snecma | Ensemble et procede pour le montage du pied d'une aube de turbomachine, soufflante, compresseur et turbomachine comportant un tel ensemble |
FR2890684A1 (fr) | 2005-09-15 | 2007-03-16 | Snecma | Clinquant pour aube de turboreacteur |
US20130302173A1 (en) * | 2012-05-11 | 2013-11-14 | E. I. Du Pont De Nemours And Company | Wear resistant turbine fan blade |
WO2014164859A2 (fr) * | 2013-03-11 | 2014-10-09 | Rolls-Royce Corporation | Couche déformable pour composants céramiques et ses procédés de fabrication |
WO2015023345A2 (fr) * | 2013-05-29 | 2015-02-19 | General Electric Company | Plaque métallique de profil aérodynamique composite |
FR3049305A1 (fr) * | 2016-03-24 | 2017-09-29 | Snecma | Procede de fabrication d'une aube de turbomachine et aube obtenue par un tel procede |
FR3059323A1 (fr) * | 2016-11-29 | 2018-06-01 | Safran Ceramics | Ensemble d'une piece cmc assemblee sur un element metallique, procede de fabrication d'un tel ensemble |
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2021
- 2021-09-24 FR FR2110098A patent/FR3127522A1/fr active Pending
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2022
- 2022-08-26 US US18/694,821 patent/US20240287910A1/en active Pending
- 2022-08-26 EP EP22773281.5A patent/EP4405568A1/fr active Pending
- 2022-08-26 CN CN202280071931.3A patent/CN118103582A/zh active Pending
- 2022-08-26 WO PCT/FR2022/051613 patent/WO2023047030A1/fr active Application Filing
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EP1085172A2 (fr) * | 1999-09-17 | 2001-03-21 | General Electric Company | Fixation d'une aube en composite |
FR2890126A1 (fr) | 2005-08-26 | 2007-03-02 | Snecma | Ensemble et procede pour le montage du pied d'une aube de turbomachine, soufflante, compresseur et turbomachine comportant un tel ensemble |
FR2890684A1 (fr) | 2005-09-15 | 2007-03-16 | Snecma | Clinquant pour aube de turboreacteur |
US20130302173A1 (en) * | 2012-05-11 | 2013-11-14 | E. I. Du Pont De Nemours And Company | Wear resistant turbine fan blade |
WO2014164859A2 (fr) * | 2013-03-11 | 2014-10-09 | Rolls-Royce Corporation | Couche déformable pour composants céramiques et ses procédés de fabrication |
WO2015023345A2 (fr) * | 2013-05-29 | 2015-02-19 | General Electric Company | Plaque métallique de profil aérodynamique composite |
FR3049305A1 (fr) * | 2016-03-24 | 2017-09-29 | Snecma | Procede de fabrication d'une aube de turbomachine et aube obtenue par un tel procede |
FR3059323A1 (fr) * | 2016-11-29 | 2018-06-01 | Safran Ceramics | Ensemble d'une piece cmc assemblee sur un element metallique, procede de fabrication d'un tel ensemble |
Also Published As
Publication number | Publication date |
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EP4405568A1 (fr) | 2024-07-31 |
FR3127522A1 (fr) | 2023-03-31 |
US20240287910A1 (en) | 2024-08-29 |
CN118103582A (zh) | 2024-05-28 |
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