DK0998385T3 - Store kompositkernestrukturer dannet ved hjælp af vakuumassisteret harpiksoverførselsstøbning og fabrikationsfremgangsmåde herfor - Google Patents

Store kompositkernestrukturer dannet ved hjælp af vakuumassisteret harpiksoverførselsstøbning og fabrikationsfremgangsmåde herfor

Info

Publication number
DK0998385T3
DK0998385T3 DK98936997T DK98936997T DK0998385T3 DK 0998385 T3 DK0998385 T3 DK 0998385T3 DK 98936997 T DK98936997 T DK 98936997T DK 98936997 T DK98936997 T DK 98936997T DK 0998385 T3 DK0998385 T3 DK 0998385T3
Authority
DK
Denmark
Prior art keywords
cores
fiber material
resin
vacuum
network
Prior art date
Application number
DK98936997T
Other languages
English (en)
Inventor
Steven J Winckler
George C Tunis Iii
Original Assignee
Steven J Winckler
Tpi Technology 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 Steven J Winckler, Tpi Technology Inc filed Critical Steven J Winckler
Application granted granted Critical
Publication of DK0998385T3 publication Critical patent/DK0998385T3/da

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32Component parts, details or accessories; Auxiliary operations
    • B29C43/36Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/3642Bags, bleeder sheets or cauls for isostatic pressing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/021Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/40Shaping or impregnating by compression not applied
    • B29C70/42Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/44Shaping 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
    • B29C70/443Shaping 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 and impregnating by vacuum or injection
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/40Shaping or impregnating by compression not applied
    • B29C70/42Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/46Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
    • B29C70/48Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/54Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/544Details of vacuum bags, e.g. materials or shape
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/54Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/546Measures for feeding or distributing the matrix material in the reinforcing structure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/54Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/546Measures for feeding or distributing the matrix material in the reinforcing structure
    • B29C70/547Measures for feeding or distributing the matrix material in the reinforcing structure using channels or porous distribution layers incorporated in or associated with the product
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/54Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/546Measures for feeding or distributing the matrix material in the reinforcing structure
    • B29C70/548Measures for feeding or distributing the matrix material in the reinforcing structure using distribution constructions, e.g. channels incorporated in or associated with the mould
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/86Incorporated in coherent impregnated reinforcing layers, e.g. by winding
    • B29C70/865Incorporated in coherent impregnated reinforcing layers, e.g. by winding completely encapsulated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32Component parts, details or accessories; Auxiliary operations
    • B29C43/36Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/3642Bags, bleeder sheets or cauls for isostatic pressing
    • B29C2043/3644Vacuum bags; Details thereof, e.g. fixing or clamping
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00Moulds or cores; Details thereof or accessories therefor
    • B29C33/76Cores
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/23Sheet including cover or casing
    • Y10T428/234Sheet including cover or casing including elements cooperating to form cells
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24149Honeycomb-like
    • Y10T428/24165Hexagonally shaped cavities
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24628Nonplanar uniform thickness material
    • Y10T428/24661Forming, or cooperating to form cells
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24744Longitudinal or transverse tubular cavity or cell

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Golf Clubs (AREA)
DK98936997T 1997-07-25 1998-07-23 Store kompositkernestrukturer dannet ved hjælp af vakuumassisteret harpiksoverførselsstøbning og fabrikationsfremgangsmåde herfor DK0998385T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/900,687 US5904972A (en) 1995-06-07 1997-07-25 Large composite core structures formed by vacuum assisted resin transfer molding
PCT/US1998/015209 WO1999004964A1 (en) 1997-07-25 1998-07-23 Large composite core structures formed by vacuum assisted resin transfer molding

Publications (1)

Publication Number Publication Date
DK0998385T3 true DK0998385T3 (da) 2004-03-01

Family

ID=25412941

Family Applications (1)

Application Number Title Priority Date Filing Date
DK98936997T DK0998385T3 (da) 1997-07-25 1998-07-23 Store kompositkernestrukturer dannet ved hjælp af vakuumassisteret harpiksoverførselsstøbning og fabrikationsfremgangsmåde herfor

Country Status (15)

Country Link
US (2) US5904972A (da)
EP (1) EP0998385B1 (da)
JP (1) JP2001510748A (da)
KR (1) KR20010022262A (da)
CN (1) CN1278762A (da)
AT (1) ATE253448T1 (da)
AU (1) AU741696B2 (da)
CA (1) CA2297793A1 (da)
DE (1) DE69819509T2 (da)
DK (1) DK0998385T3 (da)
ES (1) ES2210787T3 (da)
NO (1) NO20000341L (da)
NZ (1) NZ502432A (da)
PT (1) PT998385E (da)
WO (1) WO1999004964A1 (da)

Families Citing this family (166)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6117519A (en) * 1997-03-19 2000-09-12 Burns; Mark L. Composite core material, composite material and method of assembly
DE19911267A1 (de) * 1999-03-13 2000-09-14 Basf Ag Azoxyfarbstoffe und deren Cu-Komplexe
ATE374686T1 (de) * 1999-04-12 2007-10-15 Isuzu Motors Ltd Wärmedämmendes mauerelement und verfahren zu dessen herstellung
US6919122B2 (en) 1999-07-08 2005-07-19 Saint-Gobain Performance Plastics Corporation Flexible composites with integral flights for use in high-temperature food processing equipment and methods for producing the same
US6367406B1 (en) 1999-09-24 2002-04-09 Larson/Glastron Boats, Inc. Boat and method for manufacturing using resin transfer molding
US7413694B2 (en) * 1999-12-07 2008-08-19 The Boeing Company Double bag vacuum infusion process
DK1265744T3 (da) 1999-12-28 2016-03-29 Milliken & Co Fiberforstærkede kompositkerner
US6818159B2 (en) * 2000-03-17 2004-11-16 Deutsches Zentrum Fuer Luft-Und Raumfahrt E.V. Process for the production of a composite consisting of a fiber reinforced material
US20020090874A1 (en) * 2000-09-08 2002-07-11 Mckague Elbert L. Unitized fastenerless composite structure
JP4526698B2 (ja) 2000-12-22 2010-08-18 富士重工業株式会社 複合材成形品及びその製造方法
US8419883B2 (en) 2000-12-27 2013-04-16 Milliken & Company Fiber reinforced composite cores and panels
US7048985B2 (en) * 2001-07-23 2006-05-23 Vrac, Llc Three-dimensional spacer fabric resin infusion media and reinforcing composite lamina
US7060156B2 (en) * 2001-07-23 2006-06-13 Vrac, Llc Three-dimensional spacer fabric resin interlaminar infusion media process and vacuum-induced reinforcing composite laminate structures
US6627142B2 (en) * 2001-08-01 2003-09-30 Lockheed Martin Corporation Apparatus for making composite structures and method for making same
KR100781147B1 (ko) * 2001-08-23 2007-11-30 삼성테크윈 주식회사 폴리머 복합재 부품의 제조방법
US6739861B2 (en) 2001-11-26 2004-05-25 Sikorsky Aircraft Corporation High pressure co-cure of lightweight core composite article utilizing a core having a plurality of protruding pins
DE10203975C1 (de) * 2002-01-31 2003-01-23 Eads Deutschland Gmbh Verfahren und Vorrichtung zur Herstellung von faserverstärkten Bauteilen
JP3680041B2 (ja) * 2002-06-07 2005-08-10 三菱重工業株式会社 繊維強化樹脂構造体の製造装置
US7951449B2 (en) * 2002-06-27 2011-05-31 Wenguang Ma Polyester core materials and structural sandwich composites thereof
US20040058141A1 (en) * 2002-09-20 2004-03-25 Shutic Jeffrey R. Powder coating systems
US20030146346A1 (en) * 2002-12-09 2003-08-07 Chapman Jr W. Cullen Tubular members integrated to form a structure
US7300894B2 (en) * 2002-12-30 2007-11-27 University Of Maine Composites pressure resin infusion system (ComPRIS)
EP1602470A4 (en) * 2003-03-13 2008-02-27 Toho Tenax Co Ltd RTM PROCESS
EP1617993B1 (en) * 2003-03-28 2014-05-07 Milliken & Company Fiber reinforced composite cores and panels
US6991449B1 (en) * 2003-04-11 2006-01-31 Northrop Grumman Corporation Heating apparatus for in-situ de-bulking composite parts during layup
CA2434447A1 (fr) * 2003-06-27 2004-12-27 Eduardo Ruiz Fabrication des composites par un procede d'injection flexible au moyen d'un moule a double chambre ou a chambres multiples
US7686608B2 (en) * 2003-08-14 2010-03-30 Lockheed-Martin Corporation Apparatus and methods for distributing a substance
WO2005035217A1 (en) * 2003-09-16 2005-04-21 Alcan Baltek Corporation Polyester core materials and structural sandwich composites thereof
US7029267B2 (en) 2003-10-23 2006-04-18 Saint- Gobain Technical Fabrics Canada, Ltd Reusable vacuum bag and methods of its use
US8327738B2 (en) * 2003-11-07 2012-12-11 Sikorsky Aircraft Corporation Composite transmission housing with discontinuous fiber preforms
DE10356135A1 (de) * 2003-12-02 2005-07-07 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren zur Herstellung eines Bauteils aus einem Faserverbundwerkstoff
DE602005024660D1 (de) * 2004-01-20 2010-12-23 Touchstone Res Lab Ltd Kohlenstoffschaumverbundwerkzeug und verwendungsverfahren dafür
GB2410458B (en) * 2004-01-27 2008-09-03 David Irving Moulded composite products with cores
US7160498B2 (en) * 2004-03-08 2007-01-09 Tracker Marine, L.L.C. Closed molding tool
US7622066B2 (en) * 2004-07-26 2009-11-24 The Boeing Company Methods and systems for manufacturing composite parts with female tools
US7306450B2 (en) * 2004-09-29 2007-12-11 The Boeing Company Apparatuses, systems, and methods for manufacturing composite parts
US7972698B2 (en) 2004-10-21 2011-07-05 Graftech International Holdings Inc. Carbon foam core panels
DK176135B1 (da) * 2004-11-30 2006-09-18 Lm Glasfiber As Vakuuminfusion ved hjælp af semipermeabel membran
US7959058B1 (en) 2005-01-13 2011-06-14 The United States Of America As Represented By The Secretary Of The Navy Hybrid composite welded joint
MX2007009390A (es) 2005-02-03 2008-02-14 Vestas Wind Sys As Metodo para fabricar un miembro de forro de paleta de turbina de viento.
GB2424611A (en) * 2005-03-31 2006-10-04 Colin Hilton Production of laminated articles
US8557165B2 (en) * 2008-10-25 2013-10-15 The Boeing Company Forming highly contoured composite parts
US8601694B2 (en) * 2008-06-13 2013-12-10 The Boeing Company Method for forming and installing stringers
US7744974B2 (en) * 2005-07-19 2010-06-29 Pearson Pilings, Llc Composite structure and method of manufacture
WO2007038668A2 (en) * 2005-09-27 2007-04-05 Winckler Steven J Sandwich structures and methods of making same
US20070090554A1 (en) * 2005-10-26 2007-04-26 Rick Wykoff Panel molding method and apparatus
WO2007056840A1 (en) 2005-11-21 2007-05-24 Faroex Ltd. Composite body for a vehicle
US8066321B2 (en) * 2005-11-21 2011-11-29 Kevin Lusk Structural shear plate for a vehicle
DE112006003391T5 (de) * 2005-12-16 2008-10-16 21st Century Structures, LLC, Naperville Anorganisches Verbundmaterial und Herstellungsverfahren
WO2007123578A2 (en) * 2005-12-16 2007-11-01 21St Century Structures, Llc Inorganic composite building panel
US7655168B2 (en) * 2006-01-31 2010-02-02 The Boeing Company Tools for manufacturing composite parts and methods for using such tools
US20080008836A1 (en) * 2006-05-01 2008-01-10 Kipp Michael D Method for extending the useful life of mold type tooling
CA2599560C (en) 2006-09-01 2011-04-12 Faroex Ltd. Structural shear plate for a vehicle
US20080105997A1 (en) * 2006-10-17 2008-05-08 Ridges Michael D Method for enhancing the sealing potential of formable, disposable tooling materials
US20080106007A1 (en) * 2006-10-17 2008-05-08 Kipp Michael D Resin infusion process utilizing a reusable vacuum bag
WO2008070110A1 (en) * 2006-12-04 2008-06-12 American Consulting Technology & Research, Inc. Shrinkable film barrier for mandrel tooling members
EP1946995A1 (de) 2006-12-22 2008-07-23 Sika Technology AG Verstärkungssystem zur Verstärkung eines Hohlraumes eines Bauelements
AU2013209351B2 (en) * 2006-12-22 2016-03-31 Sika Technology Ag Reinforcing system for reinforcing a cavity of a structural element
US7849729B2 (en) 2006-12-22 2010-12-14 The Boeing Company Leak detection in vacuum bags
WO2008086022A1 (en) * 2007-01-09 2008-07-17 American Consulting Technology & Research Inc. Multi-function vacuum bag for composite part manuacture
WO2008089334A2 (en) * 2007-01-19 2008-07-24 Vec Industries, L.L.C. Method and apparatus for molding composite articles
US8388795B2 (en) 2007-05-17 2013-03-05 The Boeing Company Nanotube-enhanced interlayers for composite structures
US9770871B2 (en) 2007-05-22 2017-09-26 The Boeing Company Method and apparatus for layup placement
US8568551B2 (en) * 2007-05-22 2013-10-29 The Boeing Company Pre-patterned layup kit and method of manufacture
US7861969B2 (en) * 2007-05-24 2011-01-04 The Boeing Company Shaped composite stringers and methods of making
US8936695B2 (en) 2007-07-28 2015-01-20 The Boeing Company Method for forming and applying composite layups having complex geometries
US8333864B2 (en) * 2008-09-30 2012-12-18 The Boeing Company Compaction of prepreg plies on composite laminate structures
US8707766B2 (en) 2010-04-21 2014-04-29 The Boeing Company Leak detection in vacuum bags
US20090039566A1 (en) * 2007-08-07 2009-02-12 Rodman William L Composite structures and methods of making same
US20090155521A1 (en) * 2007-08-07 2009-06-18 Rodman William L Composite structures and methods of making same
US8834782B2 (en) * 2007-08-07 2014-09-16 William L. Rodman Composite structures and methods of making same
US8042767B2 (en) 2007-09-04 2011-10-25 The Boeing Company Composite fabric with rigid member structure
US7879276B2 (en) * 2007-11-08 2011-02-01 The Boeing Company Foam stiffened hollow composite stringer
US7926407B1 (en) * 2007-11-16 2011-04-19 Gerald Hallissy Armor shielding
WO2009073890A1 (en) * 2007-12-06 2009-06-11 Rodman William L Alignment system and methods for composite assemblies
US8916010B2 (en) * 2007-12-07 2014-12-23 The Boeing Company Composite manufacturing method
US8752293B2 (en) 2007-12-07 2014-06-17 The Boeing Company Method of fabricating structures using composite modules and structures made thereby
KR100971873B1 (ko) * 2008-01-31 2010-07-22 주식회사 한국화이바 운송차량용 일체형 복합소재 차체 및 그 제조방법
US20090230729A1 (en) * 2008-03-13 2009-09-17 Kevin Lusk Floor panel for a vehicle
JP2009234145A (ja) * 2008-03-28 2009-10-15 Toho Tenax Co Ltd 内部に発泡体とリブ構造を有するfrp成形品
US20090273111A1 (en) * 2008-04-30 2009-11-05 Bha Group, Inc. Method of making a wind turbine rotor blade
DE602008005276D1 (de) * 2008-05-21 2011-04-14 Siemens Ag Verfahren zur Herstellung eines Verbundstoffes
NL2001830C2 (nl) * 2008-07-18 2010-01-21 Fibercore Europ B V Sandwichpaneel, alsmede werkwijze voor het vervaardigen van een dergelijk paneel.
EP2335138A4 (en) 2008-08-15 2012-12-19 Qualcomm Inc ENHANCED MULTIPOINT DETECTION
DE102008041788A1 (de) 2008-09-03 2010-03-11 Airbus Deutschland Gmbh Sandwichplatte mit integrierter Verstärkungsstruktur sowie Verfahren zu deren Herstellung
US8337740B2 (en) 2008-09-23 2012-12-25 Rodman William L Reinforced internal composite structures
US8815038B2 (en) 2008-10-01 2014-08-26 The Boeing Company Joining curved composite sandwich panels
US7998299B2 (en) * 2008-10-01 2011-08-16 The Boeing Company Method for making composite truss panel having a fluted core
US8834667B2 (en) 2010-10-19 2014-09-16 The Boeing Company Method for joining sandwich truss core panels and composite structures produced therefrom
CA2741479A1 (en) * 2008-10-22 2010-04-29 Vec Industries, L.L.C. Wind turbine blade and method for manufacturing thereof
DE102008055771C5 (de) * 2008-11-04 2018-06-14 Senvion Gmbh Rotorblattgurt
US8105068B2 (en) * 2008-11-05 2012-01-31 Spirit Aerosystems, Inc. Reusable infusion bag
NL1036212C2 (nl) 2008-11-19 2010-05-21 Fibercore Europ B V Werkwijze voor het vervaardigen van een paneel, alsmede kern daarvoor.
US8540921B2 (en) * 2008-11-25 2013-09-24 The Boeing Company Method of forming a reinforced foam-filled composite stringer
US8230713B2 (en) 2008-12-30 2012-07-31 Usamp Elevated temperature forming die apparatus
FR2941397B1 (fr) * 2009-01-23 2016-12-09 Soc Lorraine De Construction Aeronautique Dispositif de fabrication d'une piece en materiau composite par moulage par transfert de resine
US20100186893A1 (en) * 2009-01-29 2010-07-29 Lockheed Martin Corporation System, method and apparatus for fabricating composite structures
US8459084B2 (en) * 2009-02-05 2013-06-11 Usamp Elevated temperature forming method and preheater apparatus
US8500066B2 (en) * 2009-06-12 2013-08-06 The Boeing Company Method and apparatus for wireless aircraft communications and power system using fuselage stringers
US8570152B2 (en) * 2009-07-23 2013-10-29 The Boeing Company Method and apparatus for wireless sensing with power harvesting of a wireless signal
US8617687B2 (en) * 2009-08-03 2013-12-31 The Boeing Company Multi-functional aircraft structures
GB2470618B (en) * 2009-09-14 2011-08-24 Alexander Fergusson An improved method of and apparatus for making a composite material
AU2010301103B2 (en) * 2009-10-01 2013-10-10 Metyx Usa Inc. Composite cores and panels
US8389104B2 (en) 2009-10-02 2013-03-05 Milliken & Company Composite cores and panels
DK2319683T3 (da) 2009-11-04 2012-11-26 Mitsubishi Heavy Ind Ltd Apparat og fremgangsmåde til at fremstille en fiberforstærket plaststruktur
US8945450B2 (en) * 2009-11-04 2015-02-03 Mitsubishi Heavy Industries, Ltd. Apparatus and method for manufacturing fiber reinforced plastic structure
JP5430424B2 (ja) * 2010-01-28 2014-02-26 本田技研工業株式会社 航空機翼構造の成形方法
US20110229686A1 (en) * 2010-03-17 2011-09-22 Dueker Douglas K Reinforced Boards and Other Building Materials
DE102010002131A1 (de) * 2010-02-18 2011-08-18 Wobben, Aloys, 26607 Verfahren zum Herstellen von Windenergieanlagen-Rotorblättern und Windenergieanlagen-Rotorblatt
EP2547514B1 (en) * 2010-05-13 2013-11-06 Bell Helicopter Textron Inc. Method of making a composite article having an internal passageway
US9771714B2 (en) * 2010-06-17 2017-09-26 Jerry Castelle Vacuum insulation panel
US9701067B2 (en) 2010-11-12 2017-07-11 The Boeing Company Method of laying up prepreg plies on contoured tools using a deformable carrier film
US8551380B2 (en) 2010-11-12 2013-10-08 The Boeing Company Method of laying up prepreg plies on contoured tools using a deformable carrier film
US9387657B2 (en) 2010-11-12 2016-07-12 The Boeing Company Method of fabricating a curved composite structure using composite prepreg tape
US8663791B2 (en) 2011-04-04 2014-03-04 Milliken & Company Composite reinforced cores and panels
ITTO20110332A1 (it) * 2011-04-12 2012-10-13 Alenia Aeronautica Spa Procedimento per la fabbricazione di manufatti in materiale composito con struttura a sandwich a sezione chiusa
EP2514584B1 (en) * 2011-04-18 2018-01-31 Siemens Aktiengesellschaft Bundle of roving yarns, method of manufacturing a bundle of roving yarns and method for manufacturing a work piece
US8980435B2 (en) 2011-10-04 2015-03-17 General Electric Company CMC component, power generation system and method of forming a CMC component
DE102012204604A1 (de) * 2012-03-22 2013-09-26 Supertex Composites Gmbh Strukturbauteil-Halbzeug zur Herstellung eines faserverstärkten Strukturbauteils sowie Strukturbauteil und Verfahren zu dessen Herstellung
EP2647492B1 (en) * 2012-04-04 2015-09-30 Siemens Aktiengesellschaft Resin flow member for a vacuum assisted resin transfer moulding process
US9597821B2 (en) 2012-09-27 2017-03-21 General Electric Company Frame assembly, mold, and method for forming rotor blade
US9145203B2 (en) 2012-10-31 2015-09-29 The Boeing Company Natural laminar flow wingtip
CN102935754A (zh) * 2012-11-22 2013-02-20 中国人民解放军国防科学技术大学 航天器壳体材料及其rtm成型工艺和注射成型系统
US9194238B2 (en) 2012-11-28 2015-11-24 General Electric Company System for damping vibrations in a turbine
US9371468B2 (en) 2013-01-16 2016-06-21 Composites Intellectual Holdings, Inc. Co-cured gel coats, elastomeric coatings, structural layers, and in-mold processes for their use
DE102013001442B3 (de) * 2013-01-29 2014-03-13 Thyssenkrupp Presta Aktiengesellschaft Lenksäule in Faserverbundtechnologie, basierend auf Pultrusion- und Flecht- und/oder Wickeltechnologie
GB2515025B (en) * 2013-06-11 2016-03-02 Aviat Entpr Ltd Spar
KR101505610B1 (ko) * 2013-09-13 2015-03-24 삼성중공업 주식회사 헬리데크
ES2539312B1 (es) * 2013-11-29 2016-05-10 Industrias Deltavigo S.L. Procedimiento de fabricación automatizado de preformas de cuadernas y rigidizadores de materiales compuestos
US10272619B2 (en) * 2014-05-19 2019-04-30 The Boeing Company Manufacture of a resin infused one-piece composite truss structure
US9828164B2 (en) * 2014-05-22 2017-11-28 Fontaine Engineered Products, Inc. Intermodal container and method of constructing same
CN104085120A (zh) * 2014-06-30 2014-10-08 江苏恒神纤维材料有限公司 复合材料臂架的制作工艺
CN105269840A (zh) * 2014-07-08 2016-01-27 莹信工业股份有限公司 复合材轮圈的制造方法与复合材轮圈
CN104401011B (zh) * 2014-10-30 2017-11-07 中国人民解放军国防科学技术大学 夹芯结构复合材料及其制备方法
US9701070B2 (en) 2014-11-06 2017-07-11 Lockheed Martin Corporation Mandrel forming for discrete wing skin stiffeners
CN104708837B (zh) * 2015-04-02 2017-04-12 哈尔滨工业大学 一种用于制备复合材料褶皱夹芯结构的组装模具
FR3037523B1 (fr) 2015-06-16 2017-12-22 Conseil & Technique Procede d'obtention d'une piece en materiau composite
CA2979076A1 (en) * 2015-07-23 2017-01-26 Composites Intellectual Holdings, Inc. Composite structure joining system and method and related structures
CN105196568B (zh) * 2015-08-04 2017-11-17 江苏恒神股份有限公司 防堵塞rtm模具
CN105415706A (zh) * 2015-11-03 2016-03-23 千人计划新材料镇江研究院有限公司 复合材料夹芯结构真空灌注一次成型方法
EP3380776B1 (en) * 2015-11-25 2021-08-11 Raytheon Technologies Corporation Composite pressure vessel assembly and method of manufacturing
CN105690803B (zh) * 2016-01-15 2018-01-16 厦门市豪尔新材料股份有限公司 一种复合材料真空热膨胀成型工艺
US10329763B2 (en) 2016-02-24 2019-06-25 Wabash National, L.P. Composite floor structure and method of making the same
CN105881933B (zh) * 2016-04-01 2017-10-10 西北工业大学 适用于rtm的t型带筋壁板复合材料的成型模具及成型方法
CN106626435A (zh) * 2016-11-28 2017-05-10 中国民用航空总局第二研究所 一种航空餐车用泡沫夹心复合材料及其制备方法
EP3548405A4 (en) 2016-11-29 2020-07-29 Saint-Gobain Performance Plastics Corporation COMPOSITE BELT PROFILE
RU2669499C1 (ru) * 2016-11-29 2018-10-11 ООО "Композитные технологии" Способ изготовления изделий трёхслойной конструкции интегрального типа из полимерных композиционных материалов
USD887926S1 (en) 2017-01-17 2020-06-23 Angel Armor, Llc Transparent armor
CN106584719A (zh) * 2017-02-24 2017-04-26 中国航空工业集团公司基础技术研究院 一种适用于复合材料树脂传递模塑成型工艺的轻质芯模
US10436118B2 (en) * 2017-06-19 2019-10-08 Rohr, Inc. Acoustic panel with folding chamber
US11225942B2 (en) * 2017-07-05 2022-01-18 General Electric Company Enhanced through-thickness resin infusion for a wind turbine composite laminate
EP3659774B1 (en) * 2017-07-25 2023-05-31 Subaru Corporation Composite material molding jig and composite material molding method
CN108045010B (zh) * 2017-12-07 2020-01-17 哈尔滨工程大学 多层复合材料泡沫夹芯板及制备方法
CN107953576B (zh) * 2017-12-14 2020-06-30 中国航空工业集团公司基础技术研究院 一种适用于复合材料角材的rtm成型模具及成型方法
US11179902B2 (en) 2018-12-19 2021-11-23 The Boeing Company Bladder mandrel package
US11318689B2 (en) 2018-12-21 2022-05-03 The Boeing Company Ply transporting and compacting apparatus and method therefor
US11305498B2 (en) 2018-12-21 2022-04-19 The Boeing Company System and method for fabricating a composite ply layup
EP3812140B1 (en) 2019-10-24 2022-03-09 Diab International AB Composite sandwich components
US20220363605A1 (en) * 2021-05-17 2022-11-17 Rolls-Royce Corporation Bladder cast slurry infiltration
CN113370555A (zh) * 2021-06-09 2021-09-10 双一科技盐城有限公司 一种风电叶片整体成型的制备方法
CN113772076A (zh) * 2021-08-24 2021-12-10 成都飞机工业(集团)有限责任公司 一种泡沫夹芯帽型加筋壁板结构及一体化成型方法
CN113844059B (zh) * 2021-10-14 2023-08-22 河北恒瑞复合材料有限公司 纤维增强塑料管段模件的制作方法及管段模件
CN114043752A (zh) * 2021-10-15 2022-02-15 明阳智慧能源集团股份公司 一种漂浮式风机浮筒泡沫的制作方法
US11898399B2 (en) * 2021-11-10 2024-02-13 Peter Sing Composite stiffener
US20230321928A1 (en) * 2022-04-09 2023-10-12 Rohr, Inc. Composite part with crossbeam supports and methods of forming composite parts
CN114770977B (zh) * 2022-06-17 2022-10-25 成都飞机工业(集团)有限责任公司 一种自动铺丝工装的设计方法、装置、设备及存储介质

Family Cites Families (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2913036A (en) * 1956-08-10 1959-11-17 Anthony Bros Fibre Glass Pool Process and apparatus for molding large plastic structures
US3146148A (en) * 1957-11-08 1964-08-25 Gen Dynamics Corp Apparatus for fabricating composite structures
GB1024582A (en) * 1961-07-05 1966-03-30 Rodgers William A method of manufacturing a synthetic resin moulding reinforced with fibrous material
FR1504274A (fr) * 1966-12-09 1967-12-01 Poinçon élastique perfectionné pour le formage, particulièrement de matières fibreuses imprégnées
US4125526A (en) * 1973-01-02 1978-11-14 Goodyear Aerospace Corporation Vacuum blanket curing method
JPS503098A (da) * 1973-05-16 1975-01-13
US4132755A (en) * 1977-07-22 1979-01-02 Jay Johnson Process for manufacturing resin-impregnated, reinforced articles without the presence of resin fumes
US4238437A (en) * 1978-08-02 1980-12-09 Rolston John A Method for producing fiber reinforced product
US4223053A (en) * 1978-08-07 1980-09-16 The Boeing Company Truss core panels
US4217157A (en) * 1978-11-20 1980-08-12 United Technologies Corporation Method of fabricating fiber-reinforced articles
US4312829A (en) * 1979-12-10 1982-01-26 Fourcher Fredric J Molding method
NL178761C (nl) * 1980-03-11 1986-05-16 Le Comte Holland B V Werkwijze voor het vervaardigen van een voorwerp van kunsthars.
DE3408776A1 (de) * 1984-03-09 1985-09-12 Bayer Ag, 5090 Leverkusen Leichtbaukonstruktionen hoher festigkeit und formsteifigkeit
US4560523A (en) * 1984-04-30 1985-12-24 A&M Engineered Composites Corporation Intrusion molding process for forming composite structures
US5000990A (en) * 1985-08-22 1991-03-19 The Budd Company One piece molded composite part and method of manufacture
US4676041A (en) * 1985-11-19 1987-06-30 Warminster Fiberglass Co. Corrosion-resistant door and its method of manufacture
US4822436A (en) * 1986-03-07 1989-04-18 Northrop Corporation Apparatus for debulking and autoclaving laminates of complex shapes
US5123985A (en) * 1986-09-02 1992-06-23 Patricia Evans Vacuum bagging apparatus and method including a thermoplastic elastomer film vacuum bag
US5360500A (en) * 1986-11-20 1994-11-01 Dunlop Limited Method of producing light-weight high-strength stiff panels
US5045251A (en) * 1987-06-15 1991-09-03 Ford Motor Company Method of resin transfer molding a composite article
US5132069A (en) * 1987-07-10 1992-07-21 Newton John R Method of injection molding composite articles
US4902215A (en) * 1988-06-08 1990-02-20 Seemann Iii William H Plastic transfer molding techniques for the production of fiber reinforced plastic structures
US4975311A (en) * 1988-12-20 1990-12-04 Itt Corporation Vacuum lamination station
US4942013A (en) * 1989-03-27 1990-07-17 Mcdonnell Douglas Corporation Vacuum resin impregnation process
US5052906A (en) * 1989-03-30 1991-10-01 Seemann Composite Systems, Inc. Plastic transfer molding apparatus for the production of fiber reinforced plastic structures
US5118555A (en) * 1989-05-11 1992-06-02 Zvi Horovitz Composite article
JPH03162933A (ja) * 1989-11-21 1991-07-12 Yamaha Motor Co Ltd プラスチックの成形方法およびプラスチック成形用型の構造
US5118558A (en) * 1990-02-16 1992-06-02 Ilc Dover, Inc. Laminate material particularly adapted for hull of aerostats
US5304339A (en) * 1990-05-23 1994-04-19 Le Comte Adolf Method for manufacturing a large-sized object of fiber reinforced synthetic resin
US5096651A (en) * 1990-05-23 1992-03-17 Le Comte Adolf Method for manufacturing an object of synthetic resin
US5087193A (en) * 1990-08-09 1992-02-11 Herbert Jr Kenneth H Apparatus for forming a composite article
US5129813A (en) * 1991-02-11 1992-07-14 Shepherd G Maury Embossed vacuum bag, methods for producing and using said bag
GB9111817D0 (en) * 1991-06-01 1991-07-24 British Aerospace Composite resin flow
US5439635A (en) * 1993-02-18 1995-08-08 Scrimp Systems, Llc Unitary vacuum bag for forming fiber reinforced composite articles and process for making same
US5316462A (en) * 1993-02-18 1994-05-31 William Seemann Unitary vacuum bag for forming fiber reinforced composite articles
US5958325A (en) * 1995-06-07 1999-09-28 Tpi Technology, Inc. Large composite structures and a method for production of large composite structures incorporating a resin distribution network

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ATE253448T1 (de) 2003-11-15
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NO20000341D0 (no) 2000-01-24
KR20010022262A (ko) 2001-03-15
CA2297793A1 (en) 1999-02-04
DE69819509D1 (de) 2003-12-11
JP2001510748A (ja) 2001-08-07
DE69819509T2 (de) 2004-09-23
NO20000341L (no) 2000-03-23
PT998385E (pt) 2004-03-31
AU8581098A (en) 1999-02-16
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US5904972A (en) 1999-05-18
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