Method for production of sandwich panels with zigzag corrugated core
US7814658B2 · kind B2 · utility
21Cited by
3References
2Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Nov 20, 2003 |
| Grant date | Oct 19, 2010 |
| Priority date | — |
| Expiry date | Aug 2, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1234
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for production of sandwich panels having a zigzag corrugated core made from sheet material to be used in aircraft construction, shipbuilding, and other branches of industry. The method improves the quality and ease of sheet blank folding into a 3-D relief structure. Folds are made in the sheet blank at locations of crimp zigzag lines protrusions and recesses. Holes are punched in the sheet with a diameter of the holes being greater than or equal to a sheet blank bending radius.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.