Aircraft engine rotor repaired with microstructural enhancement
US10865644B2 · kind B2 · utility
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14References
26Claims
0Family size
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Key dates
| Filing date | Mar 23, 2017 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | Feb 5, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49318
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A rotor for use in an aircraft engine, that has been repaired by (a) welding together a first portion of a damaged blade of the rotor and a second portion of metal to form a weld nugget, (b) compressively stressing the weld nugget throughout its volume, and (c) heat treating the compressively stressed weld nugget to recrystallize metal therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.