Method of producing a forged product
US4356612A · kind A · utility
7Cited by
13References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1980 |
| Grant date | Nov 2, 1982 |
| Priority date | — |
| Expiry date | Mar 31, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7036
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An improved forged steel structure lined with a corrosion resistant metal in which the lining and body are forged together. The improved method includes the steps of securing a bar of corrosion resistant metal within an alloy steel tube to form a billet, forging the billet to the desired shape with sufficient corrosion resistant metal to line at least one of the cavities of the desired shape and machining the forging to produce the desired lined structure. The amount of alloy steel and corrosion resistant metal in the billet being preselected to provide the desired lining without substantially weakening the structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.