Conforming coating mask for a component and system background

Patent metadata

Field	Value
Publication number	US-11313237-B2
Application number	US-202016870234-A
Country	US
Kind code	B2
Filing date	May 8, 2020
Priority date	May 8, 2020
Publication date	Apr 26, 2022
Grant date	Apr 26, 2022

Abstract

A conforming coating mask is used with a turbine component having a plurality of cooling holes. The conforming coating mask includes at least two anchors; a plurality of radial mask strips integrally formed with and extending between each of the at least two anchors; and at least one coating mask securing insert. Each at least one coating mask securing insert integrally formed with a respective at least one radial mask strip; wherein the plurality of radial mask strips align with and cover the plurality of cooling holes.

First claim

What is claimed is:

1. A conforming coating mask for use with a turbine component having a plurality of cooling holes, the conforming coating mask comprising:
at least two anchors;
a plurality of radial mask strips integrally formed with and extending between each of the at least two anchors; and
at least one coating mask securing insert, each at least one coating mask securing insert integrally formed with a respective at least one radial mask strip;
wherein the plurality of radial mask strips align with and cover the plurality of cooling holes.

2. A conforming coating mask according to claim 1 , wherein the at least two anchors, the plurality of radial mask strips, and the at least one coating mask securing insert are integrally formed by additive manufacturing.

3. A conforming coating mask according to claim 1 , wherein each at least one coating mask securing insert includes:
a plug cap; and
an insertion part enterable into at least one cooling hole.

4. A conforming coating mask according to claim 3 , wherein the insertion part frictionally engages a wall of the at least one cooling hole.

5. A conforming coating mask according to claim 3 , wherein the insertion part includes a sinusoidal portion.

6. A conforming coating mask according to claim 3 , wherein the insertion part includes an elongated spiral portion.

7. A conforming coating mask according to claim 3 , wherein the insertion part includes a compressible portion including a plurality of compressible legs integrally formed with the plug cap, the plurality of compressible legs separated from each other by a gap, the plurality of compressible legs movable into the gap by a force on the plurality of compressible legs, wherein once the force is removed the plurality of compressible legs return from the gap.

8. A conforming coating mask according to claim 7 , wherein the plurality of compressible legs includes only two compressible legs.

9. A conforming coating mask according to claim 7 , wherein the gap is triangular in cross-sectional shape.

10. A conforming coating mask according to claim 3 , wherein the plug cap includes a raised top portion and has an elliptical periphery.

11. A conforming coating mask according to claim 3 , wherein the plug cap includes a raised top portion and has a circular periphery.

12. A conforming coating mask according to claim 3 , wherein the bottom surface of the plug cap includes a depression.

13. A system comprising: a turbine component and a conforming coating mask contemporaneously formed with the component;
the turbine component including an airfoil and a plurality of cooling holes therein;
the conforming coating mask including:
at least two anchors;
a plurality of radial mask strips integrally formed and extending between each of the at least two anchors; and
at least one coating mask securing insert integrally formed with a respective one of the at least one radial mask strip;
wherein the plurality of radial mask strips align with and cover the plurality of cooling holes.

14. A system according to claim 13 , wherein the turbine component is a blade.

15. A system according to claim 13 , wherein the at least two anchors, the at least one radial mask strip, and the at least one coating mask securing insert are integrally formed by additive manufacturing.

16. A system according to claim 13 , wherein the system including the at least two anchors disposed around the turbine component so the plurality of radial mask strips positions one of the at least one coating mask securing inserts over a corresponding cooling hole in the turbine component.

17. A system according to claim 13 , wherein the each at least one coating mask securing insert includes a plug cap; and an insertion part enterable not at least one cooling hole.

18. A system according to claim 17 , wherein the plug cap includes a raised top portion and has a periphery extending over a full periphery of a respective cooling hole.

19. A system according to claim 17 , wherein the insertion part enterable not at least one cooling hole includes at least one of: a plurality of legs integrally formed with the plug cap that extend from a bottom surface of the plug cap to frictionally engage a wall of a cooling hole; a sinusoidal portion; and an elongated spiral portion.

20. A system according to claim 17 , wherein the bottom surface of the plug cap includes a depression therein.

Assignees

• Gen Electric

Inventors

• Jones Jeffrey Clarence
• Snider Zachary John
• Porter Christopher Donald
• Vantassel Brad Wilson

Classifications

• B05C21/005

  Masking devices (stencils B05C17/06; masking devices for which the means for applying liquids or other fluent material is spraying or is not important B05B12/20) · CPC title

• F01D5/186 Primary

  Film cooling (F01D5/187 takes precedence) · CPC title

• F01D5/288

  Protective coatings for blades · CPC title

• F05D2260/202

  by film cooling · CPC title

• B33Y80/00

  Products made by additive manufacturing · CPC title