Assembling titanium and steel parts by diffusion welding
US8911200B2 · kind B2 · utility
0Cited by
7References
12Claims
0Family size
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Key dates
| Filing date | Sep 21, 2009 |
| Grant date | Dec 16, 2014 |
| Priority date | — |
| Expiry date | Mar 7, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12806
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of assembling together titanium parts and steel parts by diffusion welding, the method interposing two thin layers of niobium or vanadium and copper respectively between a titanium part and a steel part, evacuating the assembly of parts and interposed metal layers, and subjecting the assembly to hot isostatic compression at a temperature lying in a range 900° C. to 950° C. and at a pressure lying in a range 1000 bars to 1500 bars for about two hours. The method can be applied to fabricating turbine shafts for turbomachines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.