Method for production of sandwich panel core from composites
US7811407B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 11, 2003 |
| Grant date | Oct 12, 2010 |
| Priority date | — |
| Expiry date | Jan 8, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1015
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention can be defined in its most general form as a technology for production of corrugated structures from foliated composite materials and can be used for production of sandwich panels used in aircraft construction, shipbuilding, and in building units. Method for production of sandwich panel core from composites including the placing of the blank from reinforcing material, the impregnation of the blank with binder obtaining thus the prepreg, the hardening of the binder in the course of hot-pressing and obtaining of the plane semifinished-blank in the form of a set of relatively rigid parts having the form of the core ridges and detached of one another for some distance, the after-deformation of the semifinished-blank and obtaining the core relief with the required geometrics, and the final hardening of the applied binder involves the impregnation of the reinforcing material with hinder along the full surface of the blank, the heat supply for hardening of the binder in the obtained prepreg within the bounds of said parts, and creation of conditions slowing down the process of hardening along the prepreg zones between said parts. The width of the prepreg zones between the pa…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.