| Titre : |
Prepreg non-autoclave manufacturing technology : program overview and co-cure enablers for disruptive, pervasive use |
| Type de document : |
texte imprimé |
| Auteurs : |
Gary G. Bond, Auteur ; Gail L. Hahn, Auteur ; K. M. Jost, Auteur ; T. Storage, Auteur |
| Année de publication : |
2012 |
| Article en page(s) : |
p. 8-15 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Composites
Hors autoclave (technologie)
Matériaux -- Imprégnation
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
In 2007, non-autoclave manufacturing technology was initiated by a boeing-led team and the U.S. government (DARPA) under the guidance of the Air Force to enable disruptive, pervasive use of vacuum-bag-only prepreg for reduced recurring cost and cycle time for primary composite structures. This paper will provide a program overview as well as focusing specifically on composite co-curing technology out of the autoclave. Composite co-cures can be complicated and difficult to repeatedly produce with high quality. Factors that can contribute to these difficulties include autoclave pressure and the flow of the resin. By moving to out-of-autoclave systems, improvements in quality by reducing pressure and resin flow are achievable. Through the DARPA/Boeing co-funded, Air Force guided program non-autoclave manufacturing technology, two different co-cure designs were evaluated. The first was an existing production co-cure utilizing production tooling and engineering but substituting Cytec's toughened epoxy non-autoclave system 5320-1 for the baseline autoclave system. The second non-autoclave co-cure was a new design for a cooling outer aft duct (COAD) that utilized a novel large-scale tooling concept for the co-cured stiffeners. Non-destructive evaluation (ultrasonic inspection) and visual inspection were conducted on both co-cured structures and demonstrated that reduced resin flow and pressure during cure does improve some aspects of co-cure quality. |
| Note de contenu : |
- EXPERIMENTATION : Program developmental approach - The path to very large structures - Fabrication of complex co-cure production structure (CCPS) - Cooling outer aft duct (COAD)
- RESULTS : Complex co-cure production structure (CCPS) results - Cooling outer aft duct (COAD) results |
| En ligne : |
http://vucoe.drbriansullivan.com/wp-content/uploads/Out-of-Autoclave-SAMPE-artic [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16078 |
in SAMPE JOURNAL > Vol. 48, N° 5 (09-10/2012) . - p. 8-15
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