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US 5,958,166 AGranted
Method for repairing high temperature composite structures
AssigneeMcDonnell Douglas Corporation
InventorsKevin D. Walters, Gregory P. Nowak
Life of this patent
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AssigneeMcDonnell Douglas Corporation
InventorsKevin D. Walters, Gregory P. Nowak
Estimating the term…
A method for repairing a high temperature composite structure fabricated from layers of composite plies. If the composite structure contains an internal high temperature core, the core is first restored by installing a core block into the damaged region, bonding the core block in place by applying high temperature material resin and uncured foam material into the region between the core block and the damaged region, and partially curing the core block. A number of repair plies, formed from pre-impregnated composite material or formed using dry cloth manually impregnated with high temperature resin are prepared. The repair plies are sized and shaped using a series of templates corresponding to the damaged region. The installed plies are cured using high temperature localized heating of the damaged region without impairing the surrounding structure.
A method for repairing a composite component fabricated from a high temperature material, said component comprising an internal core and a skin surface comprising a plurality of composite plies, said component having a damaged region therein, the method comprising the steps of:
A method for repairing a composite component fabricated from a high temperature material, said component comprising a plurality of composite plies and having a damaged region therein, the method comprising the steps of:
A method for repairing a composite component fabricated from a high temperature material, said component comprising an internal core and a skin surface comprising a plurality of composite plies, said component having a damaged region therein, the method comprising the steps of:
Dependencies are inferred from the claim text.