Optimized drawing and wall ironing process of aluminum containers
US10807140B2 · kind B2 · utility
0Cited by
2References
11Claims
0Family size
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Key dates
| Filing date | Jul 22, 2016 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Feb 20, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D22/30
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention relates to a manufacturing process of aluminum alloy beverage cans by «Drawing-Ironing», characterized in that a friction higher between the bodymaker punch and the aluminum sheet than between the ironing die and said aluminum sheet is produced by at least one of the following specificities: It also relates to a beverage can manufactured by such a process, and characterized in that its reflectance measured at 60° is higher than 73% just after the last ironing step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.