Method for fabricating an advanced composite aerostructure article having an integral co-cured fly away hollow mandrel
US6632502B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2002 |
| Grant date | Oct 14, 2003 |
| Priority date | — |
| Expiry date | May 9, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24174
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A novel method is disclosed for fabricating a co-cured advanced composite integral one piece aerostructure article. The method comprises assembling on a composite bond jig a first uncured composite layer in the shape of at least one surface of a composite aerostructure article, the first composite layer having at least one uncured resin-impregnated laminate layer. At least one longitudinally extending hollow mandrel is secured on the upper surface of the first composite layer. A second uncured composite layer is assembled on the bond jig over the upper outer surface of the hollow mandrel and at least a portion of the first uncured composite layer, the second uncured composite layer having at least one uncured resin-impregnated layer. The lay up assembled on the composite bond jig is subjected to a cycle of predetermined pressure and temperature to cure such resin impregnated layers to form a unitary co-cured one-piece aerostructure article.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.