Process for the production of tools
US5028386A · kind A · utility
1Cited by
3References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 17, 1990 |
| Grant date | Jul 2, 1991 |
| Priority date | — |
| Expiry date | Oct 17, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C1/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In a process for making tools from medium and high alloy steels or stellites by superplastic precision forming a powder metallurgically produced starting material with an equiaxed structure and more than 30% by volume of carbidic and/or boridic precipitated phase of particle size 1 to 0.2 .mu.m is given a matrix grain size of 1 to 3 .mu.m by thermomechanical processing (hot forming) and formed in the superplastic state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.