Aluminum sheet with enhanced formability and an aluminum container made from aluminum sheet
US11433441B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2017 |
| Grant date | Sep 6, 2022 |
| Priority date | — |
| Expiry date | Dec 30, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B2003/001
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In some embodiments of the present invention a method includes: obtaining a first aluminum alloy sheet formed from rolling a first ingot of a 3xxx or a 5xxx series aluminum alloy, wherein, prior to rolling, the first ingot has been heated to a sufficient temperature for a sufficient time to achieve a first dispersoid f/r of less than 7.65; and forming a container precursor from the first aluminum alloy sheet, wherein when the first aluminum alloy sheet is formed into the container precursor, the container precursor has less observed surface striations and ridges as compared to a container precursor formed from a second aluminum alloy sheet rolled from a second ingot having a second dispersoid f/r value of 7.65 or greater.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.