FR2321997A1 - Filament wound plastics article of non-circular cross section - by winding blank of circular cross section and deforming it during moulding - Google Patents

Filament wound plastics article of non-circular cross section - by winding blank of circular cross section and deforming it during moulding

Info

Publication number
FR2321997A1
FR2321997A1 FR7526691A FR7526691A FR2321997A1 FR 2321997 A1 FR2321997 A1 FR 2321997A1 FR 7526691 A FR7526691 A FR 7526691A FR 7526691 A FR7526691 A FR 7526691A FR 2321997 A1 FR2321997 A1 FR 2321997A1
Authority
FR
France
Prior art keywords
mandrel
section
circular cross
mould
deforming
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.)
Granted
Application number
FR7526691A
Other languages
French (fr)
Other versions
FR2321997B3 (en
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.)
Fiber Science Inc
Original Assignee
Fiber Science Inc
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 Fiber Science Inc filed Critical Fiber Science Inc
Priority to FR7526691A priority Critical patent/FR2321997A1/en
Publication of FR2321997A1 publication Critical patent/FR2321997A1/en
Application granted granted Critical
Publication of FR2321997B3 publication Critical patent/FR2321997B3/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B29C70/34—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 and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
    • B29C70/342—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 and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
    • 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
    • B29C70/34—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 and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
    • B29C70/347—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 and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation combined with compressing after the winding of lay-ups having a non-circular cross-section, e.g. flat spiral windings
    • 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
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
    • B29C70/446—Moulding structures having an axis of symmetry or at least one channel, e.g. tubular structures, frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/46—Blades
    • B64C27/473—Constructional features
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/10—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
    • B29C43/12—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies using bags surrounding the moulding material or using membranes contacting the moulding material
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/46—Blades
    • B64C27/473—Constructional features
    • B64C2027/4733—Rotor blades substantially made from particular materials
    • B64C2027/4736—Rotor blades substantially made from particular materials from composite materials
    • 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
    • Y02T50/40—Weight reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

A hollow filament woulnd resin article of non-circular cross-section is made by forming an inflatable mandrel comprising a sheath held between a pair of circular end plates, inflating the mandrel to a cylindrical configuration, helically winding resin impregnated filaments at angles of 0-90 degrees onto the inflated mandrel, removing the end plates to deflate the mandrel, locating the deflated mandrel in a mould of the desired configuration, and finally reinflating the mandrel to press the filament/resin coating into contact with the mould and heating the mould to effect a cure. The sheat may or may not be retained in the finished article High strength articles of non-circular construction, such as helicopter blades and aerofoils, can be relatively easily madE.
FR7526691A 1975-08-29 1975-08-29 Filament wound plastics article of non-circular cross section - by winding blank of circular cross section and deforming it during moulding Granted FR2321997A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7526691A FR2321997A1 (en) 1975-08-29 1975-08-29 Filament wound plastics article of non-circular cross section - by winding blank of circular cross section and deforming it during moulding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7526691A FR2321997A1 (en) 1975-08-29 1975-08-29 Filament wound plastics article of non-circular cross section - by winding blank of circular cross section and deforming it during moulding

Publications (2)

Publication Number Publication Date
FR2321997A1 true FR2321997A1 (en) 1977-03-25
FR2321997B3 FR2321997B3 (en) 1980-05-30

Family

ID=9159486

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7526691A Granted FR2321997A1 (en) 1975-08-29 1975-08-29 Filament wound plastics article of non-circular cross section - by winding blank of circular cross section and deforming it during moulding

Country Status (1)

Country Link
FR (1) FR2321997A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503024A1 (en) * 1981-04-04 1982-10-08 Ver Flugtechnische Werke TUBULAR HOLLOW BODY, METHOD FOR PRODUCING THE SAME, AND DEVICE FOR CARRYING OUT SAID METHOD
FR2567805A1 (en) * 1984-07-23 1986-01-24 Aerospatiale DEVICE FOR MANUFACTURING A FILAMENT COIL OF A HOLLOW ENVELOPE AND ENVELOPE OBTAINED USING THE DEVICE
EP0657646A1 (en) * 1993-10-15 1995-06-14 DEUTSCHE FORSCHUNGSANSTALT FÜR LUFT- UND RAUMFAHRT e.V. Rotor blade for wind turbine
EP2974854A1 (en) 2014-07-18 2016-01-20 Airbus Helicopters A method of fabricating a spar for a blade, and a method of fabricating a blade
EP2974851A1 (en) 2014-07-18 2016-01-20 Airbus Helicopters A method of fabricating a spar for a blade, and a blade

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503024A1 (en) * 1981-04-04 1982-10-08 Ver Flugtechnische Werke TUBULAR HOLLOW BODY, METHOD FOR PRODUCING THE SAME, AND DEVICE FOR CARRYING OUT SAID METHOD
FR2567805A1 (en) * 1984-07-23 1986-01-24 Aerospatiale DEVICE FOR MANUFACTURING A FILAMENT COIL OF A HOLLOW ENVELOPE AND ENVELOPE OBTAINED USING THE DEVICE
EP0171325A1 (en) * 1984-07-23 1986-02-12 AEROSPATIALE Société Nationale Industrielle Hollow envelope and manufacturing device for filament-winding the same
US4698011A (en) * 1984-07-23 1987-10-06 Aerospatiale Societe Nationale Industrielle Manufacture of a hollow envelope by winding filamentary material
EP0657646A1 (en) * 1993-10-15 1995-06-14 DEUTSCHE FORSCHUNGSANSTALT FÜR LUFT- UND RAUMFAHRT e.V. Rotor blade for wind turbine
US5482584A (en) * 1993-10-15 1996-01-09 Deutsche Forschungsanstalt Fur Luft- Und Raumfahrt E.V. Method for manufacturing rotor blades
US5632602A (en) * 1993-10-15 1997-05-27 Deutsche Forschungsanstalt Fur Luft-Und Ramfarht E.V. Rotor blade
EP2974854A1 (en) 2014-07-18 2016-01-20 Airbus Helicopters A method of fabricating a spar for a blade, and a method of fabricating a blade
EP2974851A1 (en) 2014-07-18 2016-01-20 Airbus Helicopters A method of fabricating a spar for a blade, and a blade
US9932109B2 (en) 2014-07-18 2018-04-03 Airbus Helicopters Method of fabricating a spar for a blade, a method of fabricating a blade, and a blade
US9950478B2 (en) 2014-07-18 2018-04-24 Airbus Helicopters Method of fabricating a spar for a blade, and a method of fabricating a blade
US10647421B2 (en) 2014-07-18 2020-05-12 Airbus Helicopters Method of fabricating a spar for a blade, a method of fabricating a blade, and a blade

Also Published As

Publication number Publication date
FR2321997B3 (en) 1980-05-30

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