Systems and methods for repairing compressor blades using hybrid manufacturing techniques

Patent metadata

Field	Value
Publication number	US-12533728-B2
Application number	US-202318475094-A
Country	US
Kind code	B2
Filing date	Sep 26, 2023
Priority date	Sep 12, 2022
Publication date	Jan 27, 2026
Grant date	Jan 27, 2026

Abstract

Systems and methods are provided for repairing compressor blades using hybrid manufacturing. A mounting tool for use in repairing a turbine component includes a slot formed in the mounting tool. The slot is configured to receive the turbine component for securing the turbine component to the mounting tool. The mounting tool includes at least one fastener engageable with the turbine component and capable of retaining the turbine component within the slot; and at least a pair of support bases provided on the mounting tool. Each of the at least a pair of support bases is positioned adjacent a respect edge of the turbine component when the turbine component is retained in the mounting tool. Each of the at least a pair of support bases is configured for additively building a sacrificial support on each of the at least a pair of support bases for enabling repair of the turbine component.

First claim

The invention claimed is:

1 . A mounting tool for use in repairing a turbine component, the turbine component including at least a first edge, an opposing second edge, and a tip, the mounting tool comprising:
a slot formed in the mounting tool, the slot configured to receive the turbine component and to secure the turbine component to the mounting tool; at least one threaded fastener engageable by direct contact with the turbine component and capable of retaining the turbine component within the slot; and at least a first support base and a second support base on the mounting tool, the first support base facing the first edge of the turbine component and having a first gap therebetween, the second support base facing the second edge of the turbine component and having a second gap therebetween, the tip of the turbine component and an uppermost surface of each of the first support base and the second support base being coplanar to facilitate fabrication of additively-built planar layers on each of the tip and the uppermost surfaces of the first support base and the second support base; wherein, the uppermost surface of each of the first support base and the second support base is accessible in its entirety and is configured for additively building a respective sacrificial support thereon for enabling repair of the turbine component; and wherein at least the first support base is releasably attached to the mounting tool.

2 . The mounting tool of claim 1 , wherein the mounting tool includes x, y, and z orientations, and the at least one threaded fastener includes a threaded fastener oriented in the y orientation of the mounting tool.

3 . The mounting tool of claim 1 , wherein the at least one threaded fastener includes a screw fastener.

4 . The mounting tool of claim 2 , wherein the at least one threaded fastener oriented in the y orientation of the mounting tool is a screw fastener.

5 . The mounting tool of claim 1 , further including an aperture configured for allowing the at least one threaded fastener to be accessed.

6 . The mounting tool of claim 1 , further including a mechanism for securing the mounting tool to a hybrid manufacturing machine.

7 . The mounting tool of claim 6 , wherein the hybrid manufacturing machine includes each of additive manufacturing and subtractive manufacturing.

8 . The mounting tool of claim 1 , further including at least one mounting feature configured for securing the mounting tool to a hybrid manufacturing machine.

9 . The mounting tool of claim 8 , wherein the at least one mounting feature includes at least one releasable mounting feature releasably securing the mounting tool to the hybrid manufacturing machine.

10 . The mounting tool of claim 1 , wherein the turbine component is a turbine compressor blade.

11 . A mounting tool for use in repairing a turbine blade, the turbine blade including at least a first edge, an opposing second edge, and a tip, the mounting tool comprising:
a slot formed in the mounting tool, the slot configured to receive the turbine blade and to secure the turbine blade to the mounting tool; at least one fastener engageable with the turbine blade and capable of retaining the turbine blade within the slot; at least a first support base and a second support base on the mounting tool, the first support base facing the first edge of the turbine blade and having a first gap therebetween, the second support base facing the second edge of the turbine blade and having a second gap therebetween, the tip of the turbine blade and an uppermost surface of each of the first support base and the second support base being coplanar to facilitate fabrication of additively-built planar layers on each of the tip and the uppermost surfaces of the first support base and the second support base; and at least one mounting feature configured for securing the mounting tool to a hybrid manufacturing machine; wherein the uppermost surface of each of the first support base and the second support base is accessible in its entirety and is configured for additively building a respective sacrificial support thereon for enabling repair of the turbine blade; wherein each of the first and the second support bases is releasably attached to the mounting tool.

12 . The mounting tool of claim 11 , wherein each of the first and the second support bases is configured to align with a curvature geometry of the turbine blade.

13 . The mounting tool of claim 11 , wherein:
the mounting tool includes x, y, and z orientations; and the at least one fastener includes a fastener oriented in the y orientation.

14 . A mounting tool for use in repairing a turbine component, the turbine component including at least a first edge, an opposing second edge, and a tip, the mounting tool comprising:
a slot formed in the mounting tool, the slot configured to receive the turbine component and to secure the turbine component to the mounting tool; at least one threaded fastener engageable by direct contact with the turbine component and capable of retaining the turbine component within the slot; and at least a first support base and a second support base on the mounting tool, the first support base facing the first edge of the turbine component and having a first gap therebetween, the second support base facing the second edge of the turbine component and having a second gap therebetween, the tip of the turbine component and an uppermost surface of each of the first support base and the second support base being coplanar to facilitate fabrication of additively-built planar layers on each of the tip and the uppermost surfaces of the first support base and the second support base; wherein, the uppermost surface of each of the first support base and the second support base is accessible in its entirety and is configured for additively building a respective sacrificial support thereon for enabling repair of the turbine component; wherein each of the first support base and the second support base is releasably attached to the mounting tool.

15 . The mounting tool of claim 14 , wherein the mounting tool includes x, y, and z orientations, and the at least one threaded fastener includes a threaded fastener oriented in the y orientation of the mounting tool.

16 . The mounting tool of claim 14 , wherein the at least one threaded fastener includes a screw fastener.

17 . The mounting tool of claim 15 , wherein the at least one threaded fastener oriented in the y orientation of the mounting tool is a screw fastener.

18 . The mounting tool of claim 14 , further including an aperture configured for allowing the at least one threaded fastener to be accessed.

19 . The mounting tool of claim 14 , further including a mechanism for securing the mounting tool to a hybrid manufacturing machine.

20 . The mounting tool of claim 19 , wherein the hybrid manufacturing machine includes each of additive manufacturing and subtractive manufacturing.

21 . The mounting tool of claim 14 , further including at least one mounting feature configured for securing the mounting tool to a hybrid manufacturing machine.

22 . The mounting tool of claim 21 , wherein the at least one mounting feature includes at least one releasable mounting feature releasably securing the mounting tool to the hybrid manufacturing machine.

23 . The mounting tool of claim 14 , wherein the turbine component is a turbine compressor blade.

Assignees

• Chromalloy Gas Turbine Llc

Inventors

• Whitton James
• Oras Zachary
• Hopkins Zachary

Classifications

• B22F2007/068

  repairing articles · CPC title

• B33Y40/20 Primary

  Post-treatment, e.g. curing, coating or polishing · CPC title

• B22F10/66

  by mechanical means · CPC title

• B22F10/40

  Structures for supporting workpieces or articles during manufacture and removed afterwards · CPC title

• B22F5/04

  of turbine blades · CPC title