# US 11,077,527 B2 · Modified components and methods for modifying components

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- Number: US 11,077,527 B2
- Document ID: US11077527B2
- Status: Granted
- Kind: B2
- Application number: 15/776,082
- Filed: 2016-12-20
- Published: 2018-11-15
- Granted: 2021-08-03
- Earliest claimed: 2015-12-21
- Assignees: General Electric Company
- Applicants: General Electric Company
- Inventors: Cem Murat Eminoglu; Cody Jermaine Ford; Brad Wilson Vantassel
- Web page: https://patentgrep.com/patent/US11077527B2

## CPC

- B23P 6/045: {of turbine components, e.g. moving or stationary blades, rotors, etc.}
- B23P 6/002: {Repairing turbine components, e.g. moving or stationary blades, rotors, (B23P6/045 takes precedence)}
- F01D 5/005: {Repairing methods or devices}
- F05D 2230/13: using lasers
- F05D 2230/237: Brazing
- F05D 2230/80: Repairing, retrofitting or upgrading methods
- F05D 2240/121: related to the leading edge of a stator vane
- F05D 2240/128: Nozzles
- F05D 2240/303: related to the leading edge of a rotor blade
- B23P: METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS (arrangements for copying or controlling B23Q)
- F01D: NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES (machines or engines for liquids F03; non-positive displacement pumps F04D)
- F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS

## Abstract

A component has an edge extending in a first direction. The component includes a filler disposed in the component. The filler has at least a first portion and a second portion. The first portion extends in a second direction from the edge into the component. The second portion of the filler extends from the first portion in a third direction. The second direction is substantially orthogonal to the first direction.

## Claims

### Claim 1

A component comprising:
a body having a first material composition, and including an edge extending in a first direction;
a crack within the body, and extending inwardly to a first depth from the edge in a second direction orthogonal to the first direction; and
a filler disposed in the body of the component within the edge at a location distal to the crack, the filler including:
an arcuate portion having an apex at the edge of the body, and a pair of arc lengths each extending in the second direction from the edge into the component to an opposing end at a second depth greater than the first depth, the arcuate portion being distal to the crack along the edge and
a pair of transverse portions each extending within the body from a respective one of the pair of arc lengths in a third direction in parallel with the first direction, wherein a portion of the body is between the pair of transverse portions,
wherein the crack within the body is aligned with, and distal to, the portion of the body between the pair of transverse portions of the filler.

### Claim 2 (depends on 1)

The component of claim 1, wherein the third direction is parallel to the first direction.

### Claim 3 (depends on 1)

The component of claim 1, wherein the component is subjected to and experiences a tensile stress in a tensile stress direction parallel with the first direction.

### Claim 4 (depends on 1)

The component of claim 1, the filler comprising a coupon.

### Claim 5 (depends on 4)

The component of claim 4, the coupon comprising a plurality of separate pieces, wherein the plurality of separate pieces are brazed or welded together to form the coupon in the component.

### Claim 6 (depends on 1)

The component of claim 1, the filler comprising at least one of a braze or a weld material, or the filler forms a hermetic seal with the component.

### Claim 7 (depends on 1)

The component of claim 1, the filler comprising at least one of GTD 262 or GTD 263.

### Claim 8 (depends on 1)

The component of claim 1, the component comprising at least one of a nickel based super alloy, a cobalt based super alloy, an iron based super alloy, or Rene 108.

### Claim 9 (depends on 1)

The component of claim 1, wherein the component comprises a turbomachine component, and wherein, the edge comprises a leading edge of a turbomachine nozzle.

### Claim 10

A component comprising:
a body having a first material composition, and including an edge extending in a first direction;
a crack within the body, and extending inwardly to a first depth from the edge in a second direction orthogonal to the first direction;
a relief cut within the body at a location distal to the crack, wherein the relief cut includes:
an arcuate portion having an apex at the edge of the body, and a pair of arc lengths each extending in the second direction in opposite directions from the edge into the component to an opposing end at a second depth greater than the first depth, the arcuate portion being distal to the crack along the edge
a pair of transverse portions each extending within the body from a respective arc length of the arcuate portion in a third direction in parallel with the first direction, wherein a portion of the body is between the pair of transverse portions, and
a filler disposed in the relief cut,
wherein the crack within the body is aligned with, and distal to, the portion of the body between the pair of transverse portions of the filler.

### Claim 11 (depends on 10)

The component of claim 10, the filler comprising a coupon.

### Claim 12 (depends on 11)

The component of claim 11, the coupon comprising a plurality of separate pieces, wherein the plurality of separate pieces are brazed or welded together to form the coupon in the component.

### Claim 13 (depends on 10)

The component of claim 10, the filler comprising at least one of a braze or a weld material, or the filler forms a hermetic seal with the body of the component.

### Claim 14 (depends on 10)

The component of claim 10, the filler comprising at least one of GTD 262 or GTD 263.

### Claim 15 (depends on 10)

The component of claim 10, the component comprising at least one of a nickel based super alloy, a cobalt based super alloy, an iron based super alloy, or Rene 108.

### Claim 16 (depends on 10)

The component of claim 10, wherein the component comprises a turbomachine component, and wherein, the edge comprises a leading edge of a turbomachine nozzle.

### Claim 17 (depends on 10)

The component of claim 10, wherein the component is subjected to and experiences a tensile stress in a tensile stress direction similar to or parallel with the first direction.

### Claim 18 (depends on 10)

The component of claim 10, wherein the third direction is parallel to the first direction.

### Claim 19 (depends on 10)

The component of claim 10, wherein the component includes a blade structure of a turbomachine.
