METHODS AND SYSTEMS FOR FABRICATING COMPOSITE STIFFENERS WITH A RIGID/MALLEABLE SMP APPARATUS

METHODS AND SYSTEMS FOR FABRICATING COMPOSITE STIFFENERS WITH A RIGID/MALLEABLE SMP APPARATUS

A method and apparatus for fabricating a composite part 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...

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Hauptverfasser: STRELOW DELBERT LEON, PRIEST JEFFREY W, FORD KEVIN JOHN, HAVENS DAVID E, FIEGENBAUM CARL RAY, EVERHART MATTHEW C, KYSAR RANDY REX, EVERHART JOEL JAMES
Format: Patent
Sprache:eng
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AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
PERFORMING OPERATIONS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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creator STRELOW DELBERT LEON
PRIEST JEFFREY W
FORD KEVIN JOHN
HAVENS DAVID E
FIEGENBAUM CARL RAY
EVERHART MATTHEW C
KYSAR RANDY REX
EVERHART JOEL JAMES
description A method and apparatus for fabricating a composite part 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.
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recordid cdi_epo_espacenet_US2012286457A1
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subjects AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
PERFORMING OPERATIONS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
title METHODS AND SYSTEMS FOR FABRICATING COMPOSITE STIFFENERS WITH A RIGID/MALLEABLE SMP APPARATUS
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