Hardened aluminum alloy stock materials having continuous variation in properties and process for producing
US5547524A · kind A · utility
7Cited by
1References
11Claims
0Family size
Inventors
Key dates
| Filing date | Jun 21, 1994 |
| Grant date | Aug 20, 1996 |
| Priority date | — |
| Expiry date | Jun 21, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S148/902
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A planar sheet of structurally hardened aluminum alloy, having, after quenching and aging, mechanical strength which varies continuously in a particularly defined direction of the planar sheet. The planar sheet is produced in a process comprising quenching and final aging, where the final aging comprises heating for a defined period of time a first portion of the plate or sheet including a first edge to a first temperature T and a second portion of the plate or sheet including an opposite edge to a second temperature t<T.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.