WO2012064441A3 - Methods and systems for fabricating composite stiffeners with a rigid/malleable smp apparatus - Google Patents

Methods and systems for fabricating composite stiffeners with a rigid/malleable smp apparatus Download PDF

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Publication number
WO2012064441A3
WO2012064441A3 PCT/US2011/055435 US2011055435W WO2012064441A3 WO 2012064441 A3 WO2012064441 A3 WO 2012064441A3 US 2011055435 W US2011055435 W US 2011055435W WO 2012064441 A3 WO2012064441 A3 WO 2012064441A3
Authority
WO
WIPO (PCT)
Prior art keywords
smp apparatus
rigid
malleable
smp
composite material
Prior art date
Application number
PCT/US2011/055435
Other languages
French (fr)
Other versions
WO2012064441A2 (en
Inventor
Randy Kysar
Carl Ray Fiegenbaum
Kristin Pickell
Original Assignee
Spirit Aerosystems, 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 Spirit Aerosystems, Inc. filed Critical Spirit Aerosystems, Inc.
Publication of WO2012064441A2 publication Critical patent/WO2012064441A2/en
Publication of WO2012064441A3 publication Critical patent/WO2012064441A3/en

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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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/40—Plastics, e.g. foam or rubber
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
    • B29C33/3857—Manufacturing moulds, e.g. shaping the mould surface by machining by making impressions of one or more parts of models, e.g. shaped articles and including possible subsequent assembly of the parts
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/48—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling
    • B29C33/485—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling cores or mandrels
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/583—Winding and joining, e.g. winding spirally helically for making tubular articles with particular features
    • B29C53/587—Winding and joining, e.g. winding spirally helically for making tubular articles with particular features having a non-uniform wall-structure, e.g. with inserts, perforations, locally concentrated reinforcements
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/80—Component parts, details or accessories; Auxiliary operations
    • B29C53/82—Cores or mandrels
    • B29C53/821—Mandrels especially adapted for winding and joining
    • B29C53/824—Mandrels especially adapted for winding and joining collapsible, e.g. elastic or inflatable; with removable parts, e.g. for regular shaped, straight tubular articles
    • 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

Abstract

A method and apparatus for fabricating a composite part, such as an internal stiffener, with a shape memory polymer (SMP) apparatus usable as both a rigid tool and as a bladder. The SMP apparatus may be heated until malleable, shaped, and then cooled in a desired rigid tool configuration. The composite material may be applied onto the SMP apparatus and then placed into a rigid external mold and heated to composite cure temperatures at which the SMP apparatus is malleable. In some embodiments, an impermeable sheet of material may also be placed over portions of the composite material to compress it against the SMP apparatus. A pressure differential may be induced which urges the SMP apparatus to compress the composite material against the rigid external mold. When the composite material is cured, the pressure differential may be equalized and/or reversed and the malleable SMP apparatus may be removed from within the composite part.
PCT/US2011/055435 2010-11-11 2011-10-07 Methods and systems for fabricating composite stiffeners with a rigid/malleable smp apparatus WO2012064441A2 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US41263510P 2010-11-11 2010-11-11
US61/412,635 2010-11-11
US201061425435P 2010-12-21 2010-12-21
US61/425,435 2010-12-21
US13/238,695 2011-09-21
US13/238,695 US8815145B2 (en) 2010-11-11 2011-09-21 Methods and systems for fabricating composite stiffeners with a rigid/malleable SMP apparatus

Publications (2)

Publication Number Publication Date
WO2012064441A2 WO2012064441A2 (en) 2012-05-18
WO2012064441A3 true WO2012064441A3 (en) 2012-07-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2011/055435 WO2012064441A2 (en) 2010-11-11 2011-10-07 Methods and systems for fabricating composite stiffeners with a rigid/malleable smp apparatus

Country Status (2)

Country Link
US (1) US8815145B2 (en)
WO (1) WO2012064441A2 (en)

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EP3628475B1 (en) * 2018-09-26 2023-07-19 The Boeing Company System and method for manufacturing composite structures
US11135783B2 (en) * 2018-09-26 2021-10-05 The Boeing Company System and method for manufacturing composite structures
US11135784B2 (en) 2018-09-26 2021-10-05 The Boeing Company System and method for manufacturing composite structures
IT202000003976A1 (en) * 2020-02-26 2021-08-26 Leonardo Spa METHOD OF REALIZATION OF A BOXED MONOLITHIC STRUCTURE IN COMPOSITE MATERIAL FOR FUSELESSES AND AIRCRAFT WINGS
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US20120286457A1 (en) 2012-11-15
US8815145B2 (en) 2014-08-26
WO2012064441A2 (en) 2012-05-18

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