WO2010061140A1 - Aube de turbomachine en materiau composite et procede pour sa fabrication - Google Patents
Aube de turbomachine en materiau composite et procede pour sa fabrication Download PDFInfo
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- WO2010061140A1 WO2010061140A1 PCT/FR2009/052309 FR2009052309W WO2010061140A1 WO 2010061140 A1 WO2010061140 A1 WO 2010061140A1 FR 2009052309 W FR2009052309 W FR 2009052309W WO 2010061140 A1 WO2010061140 A1 WO 2010061140A1
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- WIPO (PCT)
- Prior art keywords
- blade
- fibrous
- layers
- blank
- preform
- Prior art date
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
- B29B11/14—Making preforms characterised by structure or composition
- B29B11/16—Making preforms characterised by structure or composition comprising fillers or reinforcement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
- B29C70/22—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
- B29C70/222—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure the structure being shaped to form a three dimensional configuration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
- B29C70/24—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least three directions forming a three dimensional structure
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- 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
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
- C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
- C04B35/571—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide obtained from Si-containing polymer precursors or organosilicon monomers
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- 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
- C04B35/628—Coating the powders or the macroscopic reinforcing agents
- C04B35/62844—Coating fibres
- C04B35/62857—Coating fibres with non-oxide ceramics
- C04B35/62865—Nitrides
- C04B35/62868—Boron nitride
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- 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
- C04B35/628—Coating the powders or the macroscopic reinforcing agents
- C04B35/62844—Coating fibres
- C04B35/62857—Coating fibres with non-oxide ceramics
- C04B35/62873—Carbon
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- 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
- C04B35/628—Coating the powders or the macroscopic reinforcing agents
- C04B35/62884—Coating the powders or the macroscopic reinforcing agents by gas phase techniques
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- 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
- C04B35/628—Coating the powders or the macroscopic reinforcing agents
- C04B35/62894—Coating the powders or the macroscopic reinforcing agents with more than one coating layer
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- 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
- C04B35/628—Coating the powders or the macroscopic reinforcing agents
- C04B35/62897—Coatings characterised by their thickness
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D25/00—Woven fabrics not otherwise provided for
- D03D25/005—Three-dimensional woven fabrics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/08—Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
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- 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
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/52—Constituents or additives characterised by their shapes
- C04B2235/5208—Fibers
- C04B2235/5216—Inorganic
- C04B2235/524—Non-oxidic, e.g. borides, carbides, silicides or nitrides
- C04B2235/5244—Silicon carbide
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- 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
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/52—Constituents or additives characterised by their shapes
- C04B2235/5208—Fibers
- C04B2235/5252—Fibers having a specific pre-form
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- 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
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/52—Constituents or additives characterised by their shapes
- C04B2235/5208—Fibers
- C04B2235/5252—Fibers having a specific pre-form
- C04B2235/5256—Two-dimensional, e.g. woven structures
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- 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
- C04B2235/616—Liquid infiltration of green bodies or pre-forms
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- 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
- F05D2300/20—Oxide or non-oxide ceramics
- F05D2300/21—Oxide ceramics
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- 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
- F05D2300/6033—Ceramic matrix composites [CMC]
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- 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
- F05D2300/614—Fibres or filaments
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- 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
- F05D2300/70—Treatment or modification of materials
- F05D2300/702—Reinforcement
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Definitions
- the invention relates to turbomachine blades of composite material comprising a fiber reinforcement densified by a matrix.
- the targeted field is that of gas turbine blades for aircraft engines or industrial turbines.
- thermostructural composite materials and in particular of ceramic matrix composite materials (CMC) has already been proposed. Indeed, compared to metal alloys, such materials can have improved behavior at high temperatures and have a lower mass.
- CMC ceramic matrix composite materials
- turbomachine blades of composite material in particular but not necessarily of thermostructural composite material such as CMC, for turbomachines or turbomachine compressors, blades which have the properties mechanical requirements while having relatively complex shapes.
- a method for manufacturing a turbomachine blade of composite material comprising a fiber reinforcement densified by a matrix
- the method comprising: - the realization by three-dimensional weaving of a fiber blank in one piece, - shaping the fiber blank to obtain a one-piece fiber preform having a first blade preform portion and blade root and at least a second platform preform portion or blade heel, and densifying the preform with a matrix to obtain a blade of composite material having a fiber reinforcement consisting of the preform and densified by the matrix, and forming a single piece with integrated platform and / or heel.
- the fibrous blank in the longitudinal direction of the fibrous blank corresponding to the longitudinal direction of the blade to be manufactured, comprises a first set of several layers of threads which are interconnected to form a first part of the blank corresponding to the blade preform and blade root, and a second set of several layers of son which are bonded together at least locally to form at least a second portion of the blank corresponding to a preform of platform or blade heel, in that the yarns of the first set of yarn layers are not bonded to the yarns of the second set of yarn layers and in that the first set of yarn layers are traversed by yarns of the second set of yarn layers; set of wire layers at the location of the or each second portion of the blank.
- the fibrous blank is woven with a second continuous set of layers of threads and the setting The form of the fibrous blank comprises cutting out portions of the second set of outer yarn layers at or each second portion of the fibrous blank.
- the intersection between a layer of son of the first set and a wire layer of the second set follows a line not orthogonal to the longitudinal direction of the fiber blank. It is thus possible to manufacture a blade of composite material with a platform and / or a heel which extends in a general way not perpendicular to the longitudinal direction of the blade.
- the number of layers of yarns in the longitudinal direction in the first set of yarn layers is constant.
- the son of the first set of son can then be of title and / or variable contexture.
- a web comprising a succession of fibrous blanks is produced by three-dimensional weaving. These can then be cut in the band.
- the blanks can be woven with the longitudinal direction of the blade to be produced in the weft or the warp direction.
- a turbomachine blade made of a composite material comprising a fibrous reinforcement obtained by three-dimensional weaving of yarns and densified by a matrix, which blade comprises a first portion constituting blade and blade root forming a single piece with at least a second part constituting a platform or a blade heel and the two fibrous reinforcement portions corresponding to the first and second portions of the blade are at least partially mutually interleaved with threads of the blade.
- the blade may be of a ceramic matrix composite material. According to a peculiarity of the blade, constituent son of the portion of the fibrous reinforcement corresponding to the second part of the blade pass through the portion of the fibrous reinforcement corresponding to the first part of the blade.
- the blade of the blade may have a profile of variable thickness along which the fibrous reinforcing portion corresponding to the first portion of the blade has, in the longitudinal direction of the blade, a constant number of layers of wires having a variable title and / or contexture, or a variable number of layers of threads.
- the invention also relates to a turbomachine equipped with a blade as defined above.
- FIG. 1 is a perspective view of a turbomachine blade integrated platform and heel
- FIG. 2 very schematically illustrates the arrangement of two sets of layers of threads in a three-dimensional woven fiber blank intended for the production of a fibrous preform for a blade such as that illustrated in FIG. 1;
- FIGS. 3, 4 and 5 illustrate successive steps of producing a fibrous preform for a blade as illustrated in FIG. 1, starting from the fiber blank of FIG. 2;
- - Figure 6 is a sectional view showing the profile, laid flat, a blade blade such as that of Figure 1;
- Figure 7 is a sectional view of a set of layers of warp son to obtain a profile such as that of Figure 6;
- FIGS. 8A and 8B are sectional views showing a mode of weaving of the fibrous blank of FIG. 2;
- FIG. 9 is a partial sectional view along a plane parallel to the warp and weft directions in a portion of the fiber blank of Figure 2 corresponding to the junction location between blade and blade platform;
- FIG. 10 is a partial sectional view in a portion of the fiber blank of FIG. 2 corresponding to the junction location between blade and blade root;
- FIG. HA is a cross-sectional view showing an example of arrangement of weft son in a fiber blank portion corresponding to a blade root portion;
- FIGS. HB to HD are weft sectional views showing chain planes for an example of three-dimensional weaving (multilayers) in the fiber blank part of Figure HA;
- FIG. 12 is a partial schematic sectional view showing another embodiment of a blank portion corresponding to a blade root;
- FIGS. 13 and 14 very schematically illustrate two embodiments of a woven fibrous web obtained by three-dimensional weaving comprising a plurality of fibrous blanks such as that of FIG. 2;
- FIG. 15 indicates successive steps of an embodiment of a method of manufacturing a turbomachine blade according to the invention
- FIG. 16 shows successive steps of another embodiment of a method for manufacturing a turbomachine blade according to the invention.
- the invention is applicable to various types of turbomachine blades with integrated platforms and / or bead, in particular compressor and turbine blades of different gas turbine bodies, for example a moving wheel blade.
- low pressure turbine such as that illustrated in Figure 1.
- the blade 10 of Figure 1 comprises in a well known manner, a blade 20, a foot 30 formed by a portion of greater thickness, by example section bulb-shaped, extended by a stilt 32, an inner platform 40 located between the stilt 32 and the blade 20 and an outer platform or heel 50 adjacent the free end of the blade.
- the blade 20 extends longitudinally between the platform 40 and the heel 50 and has in cross section a curved profile of variable thickness between its leading edge 20a and its trailing edge 20b.
- the blade 10 is mounted on a turbine rotor (not shown) by engagement of the foot 30 in a correspondingly shaped housing provided at the periphery of the rotor.
- the foot 30 is extended by Péchasse 32 to connect to the inner face (or lower) of the platform 40.
- the blade 20 is connected to the platform 40 on an outer (or upper) face 42 of the platform which delimits, on the inside, the flow stream of gas flow in the turbine.
- the platform ends with spoilers 44 and 46.
- the face 42 of the platform is inclined, forming generally a non-zero angle with respect to the normal to the longitudinal direction of the blade.
- the angle ⁇ could be zero, or the face 42 could have a generally non-rectilinear profile, for example curved.
- the blade is connected to the heel 50 on an inner (lower) face 52 of the heel which delimits, on the outside, the flow vein of the gas flow.
- the heel delimits a depression or bath 54.
- the heel carries teeth-shaped lugs 56 whose ends can penetrate into a layer of material abradable of a turbine ring (not shown) to reduce the clearance between the blade tip and the turbine ring.
- the face 52 of the heel extends substantially perpendicular to the longitudinal direction of the blade.
- the face 52 could be inclined generally forming a non-zero angle with respect to the normal to the longitudinal direction of the blade or the face 52 could have a generally non-rectilinear profile, for example curved.
- FIG. 2 very schematically shows a fibrous blank 100 from which a fibrous preform of blade can be shaped so that, after densification by a matrix and possible machining, to obtain a blade made of composite material with integrated platform and heel such as that illustrated in FIG.
- the blank 100 comprises two parts 102, 104 obtained by three-dimensional weaving or multilayer weaving, only the envelopes of these two parts being shown in FIG. 2.
- the portion 102 is intended, after shaping, to constitute a portion of fibrous preform dawn corresponding to a preform of blade and dawn foot.
- the portion 104 is intended, after shaping, to constitute the parts of fibrous preform of blade corresponding to platform preforms and blade heel.
- the two parts 102, 104 are in the form of strips extending generally in a direction X corresponding to the longitudinal direction of the blade to be produced.
- the fibrous band 102 has, in its portion intended to form a blade preform, a variable thickness determined according to the profile thickness of the blade of the blade to be produced. In its part intended to form a foot preform, the fibrous band 102 has an extra thickness 103 determined according to the thickness of the root of the blade to be produced.
- the fibrous web 102 has a width I chosen according to the length of the profile developed (flat) of the blade and the foot of the blade to be made while the fibrous web 104 has a width L greater than I chosen as a function of developed lengths of the platform and the heel of the dawn to achieve.
- the fibrous web 104 is of substantially constant thickness determined according to the platform and heel thicknesses of the blade to be produced.
- the band 104 comprises a first part 104i which extends along and in the vicinity of a first face 102a of the band 102, a second part 104b which extends along and in the vicinity of the second face 102b of the band 102 and a third portion 105a extending along and adjacent to the first face 102a of the band 102.
- the parts 104a and 104b are connected by a connecting portion 140c which extends transversely with respect to the band 102 at a location corresponding to that of the platform of the blade to be produced.
- the connecting portion 140c passes through the strip at an angle ⁇ with respect to the normal to the longitudinal direction of the fiber blank.
- Parts 104b and 105a are connected by a portion of 150c connection which extends transversely to the strip 102 at a location corresponding to that of the blade of the blade to achieve.
- the connecting portion 150c passes through the strip 102 substantially perpendicular to the longitudinal direction X of the fiber blank.
- the connecting portion 150c can cross the band 102 at a non-zero angle relative to the normal to the longitudinal direction X of the blank, as for the platform.
- the profile of the connection portion 140c and / or that of the connecting portion 150c may be curvilinear instead of being straight as in the example shown.
- the strips 102 and 104 are woven simultaneously by three-dimensional weaving, without bond between the band 102 and the portions 104a, 104b and 105a of the band 104 and weaving a plurality of successive blanks 100 so that continue in the X direction.
- FIGS. 3 to 5 show very schematically how a fibrous preform having a shape close to that of the blade to be manufactured can be obtained from the fibrous blank 100.
- the fibrous band 102 is cut at one end in the excess thickness 103 and at another end a little beyond the connecting portion 150c to have a band 120 of length corresponding to the longitudinal dimension of the blade to be manufactured with a bulged portion 130 formed by a portion of the extra thickness 103 and located at a location corresponding to the position of the foot of the dawn to be manufactured.
- cutouts are made at the ends of the portions 104a, 105a of the strip 104 and in the portion 104b thereof to allow sections 140a and 140b to remain on either side of the connecting portion 140c, and sections 150a and 150b on either side of the connecting portion 150c, as shown in Figure 3.
- the lengths of the sections 140a, 14Qt> and 150a, 150b are determined according to the lengths of platform and heel in the dawn to manufacture.
- the sections 140a, 140b, 150a and 150b can be folded perpendicular to the strip 102 without cutting yarns to form trays 140, 150, as shown in FIG. 4,
- a fibrous preform 200 of the blade to be manufactured is then obtained by molding with deformation of the band 102 to reproduce the curved profile of the blade of the blade and deformation of the plates 140, 150 to reproduce shapes similar to those of the platform and the dawn heel, as shown in FIG. 5.
- the steps of producing a blade preform from a fiber blank are advantageously performed after treatment of the fibers of the blank and impregnation thereof with a consolidation composition.
- a three-dimensional weave of the fiber blank 100 will now be described in more detail.
- the weave is made with warp yarns extending in the longitudinal direction X of the blank, being noted that weaving with weft yarns in this direction is also possible.
- the variation in thickness of the band 102 over its width is obtained by using variable title warp yarns.
- the thread warp threads (number of threads per unit of length in the weft direction) can be varied, a lower contexture allowing greater thinning during the shaping of the preform by molding.
- the son used can be silicon carbide (SiC) son provided under the name "Nicalon” by the Japanese company Nippon Carbon and having a title (number of filaments) of 0.5K (500 filaments) .
- SiC silicon carbide
- the chain is formed with 0.5K SiC wires and SiC wires of IK obtained by joining two 0.5K wires, the two wires being joined by wrapping.
- the wrapping is advantageously made with a thread a fugitive nature that can be eliminated after weaving, for example a polyvinyl alcohol (PVA) thread that can be eliminated by dissolving in water.
- PVA polyvinyl alcohol
- Table I below gives, for each column of warp threads, the thread count (number of threads / cm in the length of the profile), the number of threads 0.5K, the number of threads IK and the profile thickness. in mm, the latter varying here between 1 mm and 2.5 mm;
- FIGS. 8A, 8B show, in chain section, two successive planes of an armor that can be used for weaving the fibrous blank 100 out of the excess thickness 103.
- the band 102 of the fibrous blank 100 comprises a set of layers of warp threads, the number of layers being here for example equal to 3 (layers Cn, Cn, Ci 3 ).
- the warp threads are bound by weft threads by three-dimensional weaving.
- the strip 104 also comprises a set of layers of warp threads, for example also equal to 3 (layers C n, C n, C 23 ) linked by weft threads t 2 by three-dimensional weaving, such as the strip 102.
- weft threads ti do not extend in the warp son layers of the web 104 and that the weft threads h . do not extend into the warp son layers of the web 102 to ensure debonding.
- the weaving is a multi-layer weaving made with satin or multi-satin weave.
- Other types of three-dimensional weaving may be used, for example multi-layer multi-weave weave or interlock weave weave.
- interlock weaving is meant here a weave weave in which each layer of weft yarn binds several layers of warp yarns with all the yarns of the same weft column having the same movement in the plane of the weave.
- Figure 9 is a sectional view parallel to the warp and weft direction at the crossing of the strip 102 by the connection portion 140c of the strip 104, the warp son of this connecting portion being seen in section.
- Each layer of warp yarns extends, in this connecting portion 140c, in a direction at an angle ⁇ relative to the weft direction of the web 102.
- the passage of the web 104 from one side to the other of the band 102 is made during weaving, by passing through all the warp and weft son of the band 102 by each warp of the band 104, individually.
- FIG. 10 is a cross-sectional view at the crossing of the strip 102 by the connection portion 150c of the strip 104.
- the connecting portion 150c extends perpendicular to the chain direction of the band 102.
- the connecting portion 140c there may be a connecting portion 150c which extends at a non-zero angle relative to the normal to the warp direction, according to the desired orientation heel.
- Thickness 103 can be obtained by using larger-sized weft yarns and additional layers of weft yarns, as shown, for example, in Figure HA.
- the number of layers of weft yarns passes in this example from 4 to 7 between a portion 102i of the strip 102, corresponding to the stalking of the blade, and the portion 102 3 of the strip 102 having the extra thickness 103. .
- weft yarns ti, t'i, ti of different titles are used, the yarns ti being, for example, SiC "Nicalon" yarns of title Q, 5K (500 filaments), the yarns T being obtained by the union of 2 wires of 0.5K and the wires by the union of 3 wires of 0.5K.
- Weaving in Ia blank portion 102 3 requires warp son layers in greater numbers in the part 102i. This is advantageously achieved during the transition between the part 102i and the part 102 3 by reducing the number of chain planes by constituting each chain plane in the part IO2 3 by the union of the warp son of two chain planes of the part 102i.
- Figures HB and HC show two adjacent chain planes in part 102i and figure HD shows a chain plane obtained in part 102 3 by joining the chain planes of figures HB and HC.
- Figures HB, HC and 11D the different titles of the warp threads (as shown in Fig. 7) or weft threads (as shown in Fig. HA) have not been shown for the sake of simplicity.
- Figures HB, HC, on the one hand, and Figure 11D, on the other hand the dashes show how the warp threads of the different layers in Figures HB, HC form the warp son layers of Figure HD .
- the extra thickness 103 can be obtained by introducing an insert during the weaving of the band 102.
- the set Ti of layers of weft threads of the portion 102i of the strip 102 corresponding to the staggering of the blade is divided by debonding during weaving into two subsets Tn, T12 between which an insert 103i is introduced.
- the portion 102i has a greater thickness than that of the portion 102 2 of the band 102 corresponding to the blade of the blade.
- the transition between the portion 102 2 and the portion 102i can be performed in the same manner as described above for the transition between the portions 102i and 102 3 of Figure HA.
- the crossing of the ply 102 by the ply 104 at the connecting portion 140c of Figure 2 may optionally be made through the portion 102i of greater thickness.
- the subassemblies Tn, T 12 of layers of weft yarns are again joined by weaving to form a portion 102'i of the same thickness as the part 102i, then , by reduction in thickness, a part 102 * 2 of the same thickness Part 102 2 , part 102 ' 2 forming part corresponding to a blade blade for the next woven blank.
- the insert 103i is preferably made of monolithic ceramic, preferably the same ceramic material as that of the matrix of the composite material of the blade to be manufactured.
- the insert 103i may be a block of SiC obtained by sintering SiC powder.
- a plurality of fibrous blanks 100 can be obtained by weaving a band 300 in which one or more rows of successive fibrous blanks are formed. Areas of over-lengths 310, 320 are provided in the warp direction (only warp threads) and in the weft direction (only weft threads) in order to prevent weaving-related edge phenomena, to allow greater freedom of deformation during the warping process. shaping of the preform and arranging transition zones between blanks 100.
- FIG. 14 shows an alternative embodiment in which a strip 400 is made with a row of blanks 100 woven in the weft direction perpendicular to the longitudinal direction of the strip. Areas of over-lengths 410, 420 are also provided in the warp and weft directions. Several rows of blanks 100 may be woven, the width of the band 400 being adapted for this purpose.
- a fibrous web is woven by three-dimensional weaving comprising a plurality of fibrous blanks, for example several rows of fibrous blanks oriented in the warp direction, as shown in FIG. 13.
- a fibrous web is woven by three-dimensional weaving comprising a plurality of fibrous blanks, for example several rows of fibrous blanks oriented in the warp direction, as shown in FIG. 13.
- it is used for weaving yarns formed of ceramic fibers, especially silicon carbide (SiC) fibers.
- step 502 the fibrous web is treated to remove the size on the fibers and the presence of oxide on the surface of the fibers.
- the removal of the oxide is obtained by acid treatment, in particular by immersion in a hydrofluoric acid bath. Yes the ens exteriorage is not removable by the acid treatment, prior treatment of removal of the size is achieved, for example by decomposition of the size by short heat treatment.
- a thin layer of interphase coating is formed on the fibers of the fibrous web by chemical vapor infiltration or CVI ("Chemical Vapor Infiltration").
- the interphase coating material is for example pyrolytic carbon or pyrocarbon (PyC), boron nitride (BN) or boron-doped carbon (BC, with for example 5% at 20% at B, the complement being C).
- the thin layer of interphase coating is preferably thin, for example at most equal to 100 nanometers, or even at most 50 nanometers, so as to maintain good deformation capacity of the fibrous blanks. Preferably, the thickness is at least 10 nanometers.
- the fibrous web with the fibers coated with a thin interphase coating layer is impregnated with a consolidation composition, typically a resin optionally diluted in a solvent.
- a consolidation composition typically a resin optionally diluted in a solvent.
- a carbon precursor resin for example a phenolic or furanic resin
- a ceramic precursor resin for example a polysilazane resin or polysiloxane precursor of SiC.
- step 505 a pre-crosslinking of the resin can be carried out (step 505)
- Pre-crosslinking or incomplete crosslinking makes it possible to increase the stiffness, and therefore the strength, while preserving the deformation capacity necessary for the production of blade preforms.
- step 507 the individual fibrous blanks are cut, as shown in FIG.
- a fibrous blank thus cut is shaped (as illustrated by FIGS. 4 and 5) and placed in a mold, for example made of graphite for shaping the blade and foot preform part and preform parts. platform and heel.
- the crosslinking of the resin is completed (step 509) and the crosslinked resin is pyrolyzed (step 510).
- Crosslinking and pyrolysis can be chained by gradually raising the temperature in the mold.
- a fibrous preform consolidated by the pyrolysis residue is obtained.
- the amount of consolidation resin is chosen so that the pyrolysis residue binds the fibers of the preform sufficiently so that it can be manipulated by maintaining its shape without the assistance of a tool, being noted that the amount of resin consolidation is preferably chosen as low as possible.
- the second interphase layer may be of a material selected from PyC, BN, BC, not necessarily the same as that of the first interphase layer.
- the thickness of the second interphase layer is preferably at least 100 nanometers.
- Performing a two-layer interphase is preferred. It is described in the French patent application filed under No. 08 54937 by the applicant. Densification by a matrix of the consolidated preform is then performed.
- the matrix is ceramic, for example SiC.
- the densification can be carried out by CVI, in which case the formation of the second interphase layer and the densification by the matrix can be chained in the same furnace.
- the densification can be carried out in two successive steps (steps 512 and 514) separated by a machining step 513 of the blade to the desired dimensions.
- a pre-machining can be performed between steps 509 and 510, that is to say after crosslinking and before pyrolysis of the resin.
- FIG. 1 Successive steps of a method of manufacturing a composite material blade according to another embodiment of the invention are shown in FIG.
- Step 601 of three-dimensional weaving of a fibrous web comprising a plurality of fibrous blanks and step 602 of Sizing removal and oxide treatment are similar to steps 501 and 502 of the embodiment of Figure 15.
- step 603 individual fibrous blanks are cut from the fibrous web, and then each individual fibrous blank is shaped in a mold or shaper (step 604) to obtain a fibrous blade preform by conformation of the preform portion. blade and foot and platform and heel preform parts.
- a defrosting interphase coating is formed by CVI on the fibers of the preform held in the shaper.
- the interphase coating material is, for example, PyC, BN or BC, as previously mentioned.
- the thickness of the interphase coating is about one to a few hundred nanometers.
- CVI interphase coating and CVI ceramic deposition consolidation can be chained in the same CVI furnace.
- the shaper is preferably made of graphite and has holes facilitating the passage of the reaction gas phases giving the interphase deposit and the ceramic deposition by CVI.
- the consolidated preform is extracted from the shaper and the densification by a ceramic matrix by CVI is performed.
- the densification can be carried out in two successive steps (steps 607 and 609) separated by a step 608 of machining the blade to the desired dimensions.
- variable thickness blade profile by the use of variable son of title and / or texture. It is possible, alternatively, to make the fibrous preform part corresponding to the blade preform part with a number of layers of threads of the same title and with fixed thread, the thickness variation of the profile being performed during machining after the first densification step or during pre-machining of the consolidated blade preform.
- the fibers of the fiber reinforcement of the blade may be of a material other than a ceramic, for example carbon
- the matrix may be of a material other than a ceramic, for example carbon or a resin
- the invention is of course also applicable to the manufacture of blades of organic matrix composite material.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Textile Engineering (AREA)
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- Composite Materials (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Woven Fabrics (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200980147538.2A CN102232020B (zh) | 2008-11-28 | 2009-11-26 | 复合材料涡轮机组发动机叶片及其制造方法 |
US13/131,285 US9080454B2 (en) | 2008-11-28 | 2009-11-26 | Composite material turbine engine vane, and method for manufacturing same |
RU2011124294/05A RU2518622C2 (ru) | 2008-11-28 | 2009-11-26 | Лопатка турбомашины из композиционного материала и способ ее изготовления |
BRPI0922074-7A BRPI0922074B1 (pt) | 2008-11-28 | 2009-11-26 | Pá, turbina e processo de fabricação de uma pá de turbina. |
JP2011538037A JP5527774B2 (ja) | 2008-11-28 | 2009-11-26 | 複合材料ターボ機械機関羽根及びそれを製造する為の方法 |
CA2744896A CA2744896C (fr) | 2008-11-28 | 2009-11-26 | Aube de turbomachine en materiau composite et procede pour sa fabrication |
EP09797097.4A EP2349688B1 (fr) | 2008-11-28 | 2009-11-26 | Aube de turbomachine en materiau composite et procede pour sa fabrication |
US13/607,341 US9062562B2 (en) | 2008-11-28 | 2012-09-07 | Composite material turbomachine engine blade or vane, compressor stator segment or turbine nozzle segment incorporating such vanes and method for manufacturing same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0858090 | 2008-11-28 | ||
FR0858090A FR2939129B1 (fr) | 2008-11-28 | 2008-11-28 | Aube de turbomachine en materiau composite et procede pour sa fabrication. |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/131,285 A-371-Of-International US9080454B2 (en) | 2008-11-28 | 2009-11-26 | Composite material turbine engine vane, and method for manufacturing same |
US13/607,341 Continuation-In-Part US9062562B2 (en) | 2008-11-28 | 2012-09-07 | Composite material turbomachine engine blade or vane, compressor stator segment or turbine nozzle segment incorporating such vanes and method for manufacturing same |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010061140A1 true WO2010061140A1 (fr) | 2010-06-03 |
Family
ID=40888150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2009/052309 WO2010061140A1 (fr) | 2008-11-28 | 2009-11-26 | Aube de turbomachine en materiau composite et procede pour sa fabrication |
Country Status (9)
Country | Link |
---|---|
US (1) | US9080454B2 (fr) |
EP (1) | EP2349688B1 (fr) |
JP (1) | JP5527774B2 (fr) |
CN (1) | CN102232020B (fr) |
BR (1) | BRPI0922074B1 (fr) |
CA (1) | CA2744896C (fr) |
FR (1) | FR2939129B1 (fr) |
RU (1) | RU2518622C2 (fr) |
WO (1) | WO2010061140A1 (fr) |
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Also Published As
Publication number | Publication date |
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CN102232020A (zh) | 2011-11-02 |
US9080454B2 (en) | 2015-07-14 |
EP2349688B1 (fr) | 2014-09-10 |
JP5527774B2 (ja) | 2014-06-25 |
FR2939129A1 (fr) | 2010-06-04 |
EP2349688A1 (fr) | 2011-08-03 |
RU2518622C2 (ru) | 2014-06-10 |
US20110311368A1 (en) | 2011-12-22 |
CN102232020B (zh) | 2014-06-04 |
FR2939129B1 (fr) | 2014-08-22 |
CA2744896C (fr) | 2017-02-21 |
JP2012510586A (ja) | 2012-05-10 |
BRPI0922074B1 (pt) | 2019-06-04 |
BRPI0922074A2 (pt) | 2015-12-22 |
RU2011124294A (ru) | 2013-01-10 |
CA2744896A1 (fr) | 2010-06-03 |
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