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US 10,865,644 B2Granted
Aircraft engine rotor repaired with microstructural enhancement
AssigneeKeystone Synergistic Enterprises, Inc.
InventorsBryant Walker, Raymond Walker
Life of this patent
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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.
Claims26
A rotor for use in an aircraft engine, that has been repaired by:
- welding together a first portion of a damaged blade of the rotor and a second portion of metal to form a weld nugget;
- locally compressively stressing the weld nugget throughout its volume, said locally compressively stressing comprising indenting the weld nugget with a series of overlapping indentations;
- and
- locally heat treating the compressively stressed weld nugget to recrystallize metal therein.
1 more element
Dependencies are inferred from the claim text.