Method for sliver elimination in shearing aluminum sheet
US6045636A · kind A · utility
7Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 15, 1997 |
| Grant date | Apr 4, 2000 |
| Priority date | — |
| Expiry date | May 15, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/057
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Age-hardened aluminum alloy sheet can be subjected to a shearing operation, such as trimming or piercing, with reduced sliver formation by first heating the region to be sheared to a temperature above about 250.degree. C., immediately quenching the heated region to soften the region, and then performing the shearing operation in the softened region before age-hardening occurs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.