Process for the production of thermoformed articles comprised of aluminum-based and magnesium-based alloys
US4250727A · kind A · utility
11Cited by
4References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 1978 |
| Grant date | Feb 17, 1981 |
| Priority date | — |
| Expiry date | Aug 15, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S72/70
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A process for producing thermoformed articles from thin-walled blanks composed of aluminum or magnesium alloys, the present invention particularly provides for forming a layer of alumina or magnesia on the surfaces of the respective aluminum or magnesium blank. The alumina or magnesia layers so formed are artificially formed in order to obtain desired thicknesses, the regular layers allowing ready removal of the articles from thermoforming molds. The present process is particularly intended for the production of thin-wall packaging members and motor vehicle components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.