Methods and systems for forming integral composite parts with a SMP apparatus

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United States of America Patent

PATENT NO 8945325
SERIAL NO

13238733

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Abstract

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A method and apparatus for fabricating a composite part, such as a fuselage or internal stiffener, with a shape memory polymer (SMP) apparatus usable as a rigid lay-up tool. The SMP apparatus may be heated until malleable, shaped, and then cooled in a desired rigid tool configuration. For example, cavities may be formed into the SMP apparatus for nesting components therein to co-bond or co-cure with the composite part. The composite material and/or nested components may be heated and compressed against the SMP apparatus. The SMP apparatus may be configured to remain rigid during the composite cure cycle. Once the composite material is cured, the SMP apparatus may be triggered to a malleable state and urged away from the cured composite material.

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Patent Owner(s)

Patent OwnerAddress
SPIRIT AEROSYSTEMS INC3801 SOUTH OLIVER STREET WICHITA KS 67210

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Caster, Kodi Elizabeth Ann Wichita, US 2 25
Everhart, Matthew C Fairborn, US 12 146
Fiegenbaum, Carl Ray Rose Hill, US 8 84
Havens, David E Bellbrook, US 15 167
Kysar, Randy Rex Derby, US 4 44
Priest, Jeffrey W Rose Hill, US 10 87
Strelow, Delbert Leon Wichita, US 4 44

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