Low temperature, vacuum cure fabrication process for large, honeycomb core stiffened composite structures
US8052831B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2005 |
| Grant date | Nov 8, 2011 |
| Priority date | — |
| Expiry date | Jan 26, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24149
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for making a honeycomb composite structure wherein the method allows for fluid flow from cells of a honeycomb core during a cure process. More specifically, the method involves forming one or more vents in a skin of the structure, which are preferably filled with venting wicks, to allow for fluid flow before being sealed by the polymer matrix during a skin bonding process. Additionally, the structure preferably comprises a scrim that allows for fluid flow between multiple cells of the honeycomb core. The honeycomb composite structure produced according to this process comprises, among other things, a sealed venting region that comprises a polymer matrix and fibers that are transverse to the skin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.