US20140352874A1 - Method for laying a fibre material on a mould surface - Google Patents

Method for laying a fibre material on a mould surface Download PDF

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Publication number
US20140352874A1
US20140352874A1 US14/269,163 US201414269163A US2014352874A1 US 20140352874 A1 US20140352874 A1 US 20140352874A1 US 201414269163 A US201414269163 A US 201414269163A US 2014352874 A1 US2014352874 A1 US 2014352874A1
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United States
Prior art keywords
rovings
movable support
fibre material
mould
reel
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.)
Abandoned
Application number
US14/269,163
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English (en)
Inventor
Kristian Lehmann Madsen
Steen Madsen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Assigned to SIEMENS WIND POWER A/S reassignment SIEMENS WIND POWER A/S ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MADSEN, KRISTIAN LEHMANN, MADSEN, STEEN
Assigned to SIEMENS AKTIENGESELLSCHAFT reassignment SIEMENS AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SIEMENS WIND POWER A/S
Publication of US20140352874A1 publication Critical patent/US20140352874A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/38—Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
    • B29C70/382—Automated fiber placement [AFP]
    • 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
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • 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
    • B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
    • B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
    • 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
    • B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
    • B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
    • 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
    • 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
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/38—Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
    • 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
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/541—Positioning reinforcements in a mould, e.g. using clamping means for the reinforcement
    • 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
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/56—Tensioning reinforcements before or during shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/0025—Producing blades or the like, e.g. blades for turbines, propellers, or wings
    • B29D99/0028—Producing blades or the like, e.g. blades for turbines, propellers, or wings hollow blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
    • B65H49/18—Methods or apparatus in which packages rotate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • 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
    • 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
    • F01D5/147—Construction, i.e. structural features, e.g. of weight-saving hollow blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • F03D1/0675—Rotors characterised by their construction elements of the blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2307/00—Use of elements other than metals as reinforcement
    • B29K2307/04—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
    • B29K2309/08—Glass
    • 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
    • B29L2031/082—Blades, e.g. for helicopters
    • B29L2031/085—Wind turbine blades
    • 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
    • F05D2230/60—Assembly methods
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the present invention relates to a method for laying a fibre material on a mould surface, in which rovings of the fibre material are laid on the mould surface or on a fibre material already laid on the mould surface, whereby the rovings are rolled from a reel which is held by a movable support which is being moved in a desired direction along the mould.
  • a method of producing a fibre reinforced structure is known from U.S. Pat. No. 4,242,160 A, which discloses a method of producing a wind turbine rotor blade, whereby a filament-reinforced composite mandrel is used. The filaments are wound on the mandrel to form a spar of the wind turbine rotor blade.
  • EP 2 511 078 A1 discloses a method of producing fibre reinforced structure in which fibre material is laid on a mould surface resembling a negative image of the fibre reinforced structure to be produced and in which a resin is infused and cured after the fibre material is laid on the mould surface.
  • Layering the fibre material on the mould surface comprises a step of laying rovings of the fibre material on the mould surface or on a fibre material already laid on the mould surface and applying an underpressure to a space between the rovings and the mould surface.
  • This method can be used to produce a fibre reinforced wind turbine rotor blade.
  • a reel is used that is held by a support with a base comprising wheels or rollers.
  • the fibre material to be laid on the mould surface is wound on the reel in form of rovings.
  • the rovings, the reel and the mould surface not yet covered by rovings are covered by an air tight cover, e.g. a transparent PVC type film. This film holds the rovings in place, subsequently air is sucked out of the space between the mould surface and the air tight film.
  • said support comprises at least one roller being connected to said movable support by at least one articulated joint such that said roller holds down laid out rovings.
  • the present invention is based on the idea that it is not necessary to use a thin air tight film covering the movable support and the rovings when the rovings are rolled from said reel.
  • the movable support comprises at least one roller which is connected to the movable support by at least one articulated joint such that said roller holds down laid out rovings.
  • said roller is pulled after said movable support such that the rovings which are positioned in the mould are held in place by the gravitational force of the roller.
  • a tensioning force is generated in longitudinal direction of the rovings which ensures that rovings are unrolled from said reel. Accordingly the rovings are unrolled from the reel when the support is moved.
  • a movable support with wheels is used.
  • a movable support with multiple reels for rovings is used. Accordingly multiple rovings can be applied on the mould surface simultaneously.
  • a movable support with multiple reels for rovings is used being arranged in at least two staggered rows.
  • the two or more staggered rows are staggered or offset so that the available space can be utilised very efficiently.
  • the invention relates to a movable support for at least one reel for rovings.
  • said movable support is characterised in that it comprises at least one roller for holding down laid out rovings.
  • the roller may comprise a non-static material.
  • said movable support comprises multiple reels for rovings.
  • Said multiple reels for rovings may be arranged in at least two staggered rows.
  • said multiple reels are interconnected by movable joints.
  • rollers are made at least partially from a non-static material, namely a material which is not prone to static electric charge due to the movement of the roller.
  • FIG. 1 shows an inventive movable support to be used in the inventive method
  • FIG. 2 is a top view of an embodiment of the inventive movable support
  • FIG. 3 is a top view of a further embodiment of the movable support.
  • FIG. 1 schematically shows the procedure of laying a fibre material on a surface of a mould 1 .
  • Said fibre material can be a glass fibre material, a carbon fibre material or any other fibre material which is suitable for being used for the production of wind rotor blades.
  • a reel 2 As a method for assisting in laying fibre material on the surface 1 of the mould a reel 2 is used that is held by a movable support 3 comprising wheels or rollers 4 .
  • Said movable support 3 comprises a base 5 to which said wheels or rollers 4 are attached to.
  • the fibre material to be laid on the surface of the mould 1 is wound on the reel 2 in form of rovings.
  • the mould 1 represents a negative form or shape of a rotor blade half shell.
  • the mould is used for producing the fibre reinforced structure by vacuum assisted resin transfer moulding (VARTM).
  • VARTM vacuum assisted resin transfer moulding
  • fibre material in form of rovings is laid in the surface of the mould 1 in form of dry rovings which are unreeled from the reel 2 while the support 3 is moved over the surface of mould 1 .
  • the movable support 3 comprises a roller 6 being connected to said movable support 3 by an articulated joint 7 .
  • the function of the roller 6 is thus to hold laid out rovings 9 in place by applying a vertical gravitational force to the laid up part of the rovings 9 . Simultaneously a tension force is generated acting on the non-laid out part of the rovings 9 in longitudinal direction of the rovings.
  • a high quality of the roving layout is ensured as during layout a constant tension in longitudinal direction of the rovings is applied. This ensures that no wrinkles occur.
  • the support 3 may be moved several times along the mould surface 1 so that multiple layers of rovings are laid out which form a fibre reinforced laminate after resin is injected into the rovings.
  • the several layers of rovings can be laid in different angles with respect to the mould.
  • FIG. 2 is a top view showing another embodiment of a movable support 10 comprising multiple reels for rovings.
  • a movable support 10 comprising multiple reels for rovings.
  • FIG. 2 one can see that several reels 11 are provided which are arranged next to each other. From each reel 11 one roving can be unreeled so that several rovings can be laid out in place simultaneously.
  • the movable support 10 comprises several rollers 12 for holding down laid out rovings. As can be seen in FIG. 2 said rollers 12 are arranged in two staggered rows. A first row of rollers 12 is held by a joint 14 , a second row of rollers 12 is held by a joint 15 . Due to the staggered arrangement of rollers 12 into rows a large number of rollers 12 can be used, from each roller 12 one single roving 13 is unreeled and placed in the mould 1 .
  • FIG. 3 shows another embodiment of a support 16 comprising reels 11 which are arranged next to each other as in the embodiment of FIG. 2 . Further a number of rollers 17 is provided, whereby said rollers 17 are arranged next to each other, whereby adjacent rollers 17 are interconnected by a movable joint 18 . The row of rollers 17 is connected to the reel 11 by an articulated joint 19 .
  • the rollers 6 , 12 , 17 are made from a non-static electric material, so that rovings cannot adhere to the rollers once they are laid out.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Robotics (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Combustion & Propulsion (AREA)
  • Architecture (AREA)
  • Moulding By Coating Moulds (AREA)
US14/269,163 2013-05-31 2014-05-04 Method for laying a fibre material on a mould surface Abandoned US20140352874A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP13170098.1 2013-05-31
EP13170098.1A EP2808158A1 (de) 2013-05-31 2013-05-31 Verfahren und Vorrichtug zum Verlegen eines Fasermaterials auf einer Formoberfläche

Publications (1)

Publication Number Publication Date
US20140352874A1 true US20140352874A1 (en) 2014-12-04

Family

ID=48537842

Family Applications (5)

Application Number Title Priority Date Filing Date
US14/269,163 Abandoned US20140352874A1 (en) 2013-05-31 2014-05-04 Method for laying a fibre material on a mould surface
US14/890,293 Active 2036-04-14 US10399287B2 (en) 2013-05-31 2014-05-28 Manufacturing arrangement for the manufacture of a rotor blade
US14/893,994 Active 2035-12-04 US10618228B2 (en) 2013-05-31 2014-05-28 Rotor blade manufacturing arrangement
US14/890,190 Active 2035-08-02 US10040255B2 (en) 2013-05-31 2014-05-28 Rotor blade manufacturing arrangement
US16/727,015 Active US11034101B2 (en) 2013-05-31 2019-12-26 Rotor blade manufacturing arrangement

Family Applications After (4)

Application Number Title Priority Date Filing Date
US14/890,293 Active 2036-04-14 US10399287B2 (en) 2013-05-31 2014-05-28 Manufacturing arrangement for the manufacture of a rotor blade
US14/893,994 Active 2035-12-04 US10618228B2 (en) 2013-05-31 2014-05-28 Rotor blade manufacturing arrangement
US14/890,190 Active 2035-08-02 US10040255B2 (en) 2013-05-31 2014-05-28 Rotor blade manufacturing arrangement
US16/727,015 Active US11034101B2 (en) 2013-05-31 2019-12-26 Rotor blade manufacturing arrangement

Country Status (6)

Country Link
US (5) US20140352874A1 (de)
EP (4) EP2808158A1 (de)
CN (4) CN105228813B (de)
CA (4) CA2913821C (de)
DK (3) DK3003696T3 (de)
WO (3) WO2014191112A1 (de)

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WO2017148514A1 (en) * 2016-03-02 2017-09-08 Lm Wp Patent Holding A/S Method of molding a shell part of a wind turbine blade
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