Local heat treatment of aluminum panels
US8211251B2 · kind B2 · utility
7Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2009 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Aug 14, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2221/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of accomplishing precipitation hardening of a selected portion of an aluminum panel is disclosed herein. The method includes identifying at least one area of the aluminum panel that experiences thermal stress above a threshold value during a bake cycle, thereby identifying the selected portion. Prior to the bake cycle, the method further includes locally heating the selected portion at a predetermined temperature for a predetermined time sufficient to increase a local yield strength of the selected portion such that the increased local yield strength ranges from 150 MPa to 300 MPa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.