Process of making integrally bladed rotor
US10605101B2 · kind B2 · utility
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10References
17Claims
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Key dates
| Filing date | Sep 12, 2017 |
| Grant date | Mar 31, 2020 |
| Priority date | — |
| Expiry date | May 19, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Disclosed is a method of making an integrally bladed rotor. According to the method, a titanium alloy rotor disk with 15-50% by volume of primary alpha grains with a grain size less than 10 μm and secondary alpha grains comprising widmanstatten grains with a grain size less than 1.0 μm is subjected to thermal processing. After thermal processing, a blade having an airfoil and a base is positioned such that a base surface is in contact with an outer rim surface of the disk. Heat, pressure, and motion are applied between the blade and the disk to friction weld the base surface to the disk outer rim surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.