Forming a composite panel
US6139974A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 1999 |
| Grant date | Oct 31, 2000 |
| Priority date | — |
| Expiry date | Feb 4, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12486
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A composite panel is formed by bonding together at least two overlying sheets of metal. The method comprises performing a first corrugating operation on each of said sheets, and positioning said sheets in overlying relationship with the corrugations of each sheet extending in a common first direction and the corrugations of each sheet nested into those of the other sheet. The method also comprises performing a second corrugating operation arranged to produce corrugations which extend in a second direction which is inclined at an angle of at least 10.degree. to said first direction. Each sheet is formed into parallel upstanding ridges separated by troughs. The troughs in each sheet are received within the ridges of the other sheet. The troughs have reentrant side walls and the ridges vary in width along their length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.