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Found results for
 patents
1.
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Aircraft engine rotor repaired with microstructural enhancement
| Application Number |
15467173 |
| Grant Number |
10865644 |
| Status |
In Force |
| Filing Date |
2017-03-23 |
| First Publication Date |
2017-10-19 |
| Grant Date |
2020-12-15 |
| Owner |
KEYSTONE SYNERGISTIC ENTERPRISES, INC. (USA)
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| Inventor |
- Walker, Bryant
- Walker, Raymond
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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.
IPC Classes ?
- B23K 26/21 - Bonding by welding
- F01D 5/00 - BladesBlade-carrying membersHeating, heat-insulating, cooling, or antivibration means on the blades or the members
- B23K 15/00 - Electron-beam welding or cutting
- B23K 26/00 - Working by laser beam, e.g. welding, cutting or boring
- F02K 9/52 - Injectors
- F02K 9/58 - Propellant feed valves
- F02K 9/62 - Combustion or thrust chambers
- B23P 6/00 - Restoring or reconditioning objects
- B23K 26/20 - Bonding
- F01D 5/14 - Form or construction
- B23K 101/00 - Articles made by soldering, welding or cutting
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2.
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Metal joining and strengthening methods utilizing microstructural enhancement
| Application Number |
14000164 |
| Grant Number |
10156140 |
| Status |
In Force |
| Filing Date |
2012-02-16 |
| First Publication Date |
2014-06-12 |
| Grant Date |
2018-12-18 |
| Owner |
KEYSTONE SYNERGISTIC ENTERPRISES, INC. (USA)
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| Inventor |
- Walker, Bryant
- Walker, Raymond
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Abstract
A method for joining first and second metal portions includes welding together the portions such that a weld nugget joins them, compressively stressing the weld nugget throughout its volume, and heat treating the compressively stressed weld nugget to recrystallize metal therein. A method for strengthening a metal element includes imparting compressive stress within a region of the metal element, and heat treating it such that metal of the region recrystallizes with a finer grain structure than was present in the region before the step of imparting the compressive stress. A repaired metal part includes a first, original section made of metal alloy, and a second, repair section of metal alloy joined to the original section by a recrystallized metal weld having crystals within +/−3 ASTM-112 grain sizes of the size of the crystals of the original and repair sections.
IPC Classes ?
- F01D 5/00 - BladesBlade-carrying membersHeating, heat-insulating, cooling, or antivibration means on the blades or the members
- B23K 15/00 - Electron-beam welding or cutting
- F02K 9/52 - Injectors
- F02K 9/58 - Propellant feed valves
- F02K 9/62 - Combustion or thrust chambers
- B23K 26/20 - Bonding
- F01D 5/14 - Form or construction
- B23K 26/00 - Working by laser beam, e.g. welding, cutting or boring
- B23K 26/21 - Bonding by welding
- B23K 101/00 - Articles made by soldering, welding or cutting
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3.
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METAL JOINING AND STRENGTHENING METHODS UTILIZING MICROSTRUCTURAL ENHANCEMENT
| Application Number |
US2012025453 |
| Publication Number |
2012/112779 |
| Status |
In Force |
| Filing Date |
2012-02-16 |
| Publication Date |
2012-08-23 |
| Owner |
KEYSTONE SYNERGISTIC ENTERPRISES, INC. (USA)
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| Inventor |
- Walker, Bryant
- Walker, Raymond
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Abstract
A method for joining first and second metal portions includes welding together the portions such that a weld nugget joins them, compressively stressing the weld nugget throughout its volume, and heat treating the compressively stressed weld nugget to recrystallize metal therein. A method for strengthening a metal element includes imparting compressive stress within a region of the metal element, and heat treating it such that metal of the region recrystallizes with a finer grain structure than was present in the region before the step of imparting the compressive stress. A repaired metal part includes a first, original section made of metal alloy, and a second, repair section of metal alloy joined to the original section by a recrystallized metal weld having crystals within +/- 3 ASTM-112 grain sizes of the size of the crystals of the original and repair sections.
IPC Classes ?
- B23K 5/12 - Gas flame welding taking account of the properties of the material to be welded
- C21D 1/18 - HardeningQuenching with or without subsequent tempering
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