Production of metallic articles
US4582544A · kind A · utility
10Cited by
0References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1984 |
| Grant date | Apr 15, 1986 |
| Priority date | — |
| Expiry date | Mar 30, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S420/902
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of superplastically deforming a blank of a metallic alloy which: PA0 1. has a composition suitable for superplastic deformation and PA0 2. has a grain structure suitable for superplastic deformation and PA0 3. contains less than that percentage of a constituent known to inhibit grain coarsening after recrystallization which is necessary for such inhibition, comprising raising the blank to a forming temperature, deforming the blank at a first strain rate to induce dynamic recrystallization and continuing to deform the blank at a second strain rate lower than the first rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.