IP Library › Granted Patent US 11,334,051
Granted Patent B2
US 11,334,051 · App. 16/446,463 · Granted May 17, 2022

Systems and methods for automated adaptive manufacturing of airfoil castings

Inventors: James Tilsley Auxier (Bloomfield, CT); Alan C. Barron (Jupiter, FL); Norman W. Cofalka (Bernardsville, NJ); Joel H. Wagner (Wethersfield, CT)
Assignee: Raytheon Technologies Inc.
G05B19/4097F01D5/147F05D2220/32F05D2230/21G05B2219/35134G05B2219/45147
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Quick Facts
Patent No.
US 11,334,051
App. No.
16/446,463
Granted
May 17, 2022
Kind
B2
Abstract

A system for automated adaptive manufacturing of airfoil castings is disclosed. The system may receive a three dimensional scan of a work piece. The system may compare the three dimensional scan to a digital model of the work piece. The system may identify an area of dimensional abnormality on the work piece based on the comparison. The system may alter the area of dimensional abnormality on the work piece.

Claims (69)

1. A method, comprising:

receiving, by a computer based system, a three dimensional scan of a work piece;

generating, by the computer based system, a conformal-mapped nominal model of the work piece based on the three dimensional scan and a conformal-mapping model, wherein the conformal-mapped nominal model is generated using a machine learning technique;

comparing, by the computer based system, the three dimensional scan to a digital model of the work piece, the comparing further comprising:

comparing, by the computer based system, the conformal-mapped nominal model with the three dimensional scan; and

generating, by the computer based system, a difference map based on the comparison;

identifying, by the computer based system, an area of dimensional abnormality on the work piece based on the comparison, the identifying further comprising:

classifying, by the computer based system, the difference map into a positive feature set and a negative feature set; and

matching, by the computer based system, the positive feature set and the negative feature set against an index of features to generate a matched feature set; and

altering, by the computer based system, the area of dimensional abnormality on the work piece.

2. The method of claim 1 , further comprising:

registering, by the computer based system, the three dimensional scan against an ideal model of the work piece;

and

storing, by the computer based system, the conformal-mapped nominal model as model data.

3. The method of claim 2 , wherein the comparing to the digital model further comprises

storing, by the computer based system, the difference map as model data.

4. The method of claim 3 , wherein the identifying the area of dimensional abnormality comprises

storing, by the computer based system, the matched feature set as match data.

5. The method of claim 4 , wherein the altering the area of dimensional abnormality comprises:

generating, by the computer based system, a tool instruction based on the match data; and transmitting, by the computer based system, the tool instruction to a computer numerical control tool system.

6. The method of claim 5 , wherein the conformal-mapping model proportionally adjusts a dimension of an ideal airfoil model.

7. A system comprising:

a processor; and

a tangible, non-transitory memory configured to communicate with the processor,

the tangible, non-transitory memory having instructions stored thereon that, in response to execution by the processor, cause the processor to perform operations comprising:

receiving, by the processor, a three dimensional scan of a work piece;

generating, by the processor, a conformal-mapped nominal model of the work piece based on the three dimensional scan and a conformal-mapping model, wherein the conformal-mapped nominal model is generated using a machine learning technique;

comparing, by the processor, the three dimensional scan to a digital model of the work piece, the comparing further comprising:

comparing, by the processor, the conformal-mapped nominal model with the three dimensional scan; and

generating, by the processor, a difference map based on the comparison;

identifying, by the processor, an area of dimensional abnormality on the work piece based on the comparison, the identifying further comprising:

classifying, by the processor, the difference map into a positive feature set and a negative feature set;

matching, by the processor, the positive feature set and the negative feature set against an index of features to generate a matched feature set; and

instructing, by the processor, a computer numerical control tool system to alter the area of dimensional abnormality on the work piece.

8. The system of claim 7 , wherein the operations further comprise:

registering, by the processor, the three dimensional scan against an ideal model of the work piece;

and

storing, by the processor, the conformal-mapped nominal model as model data.

9. The system of claim 8 , wherein the comparing to a digital model further comprises

storing, by the processor, the difference map as model data.

10. The system of claim 9 , wherein the identifying the area of dimensional abnormality comprises

saving, by the processor, the matched feature set as match data.

11. The system of claim 10 , wherein the altering the area of dimensional abnormality comprises:

generating, by the processor, a tool instruction based on the match data; and transmitting, by the processor, the tool instruction to the computer numerical control tool system.

12. The system of claim 11 , wherein the conformal-mapping model proportionally adjusts a dimension of an ideal airfoil model.

13. The system of claim 8 , wherein the operations further comprise deriving, by the processor, the conformal-mapping model in response to a plurality of three dimensional scan data.

14. An article of manufacture including a non-transitory, tangible computer readable storage medium having instructions stored thereon that, in response to execution by a computer based system, cause the computer based system to perform operations comprising:

receiving, by a computer based system, a three dimensional scan of a work piece;

generating, by the computer based system, a conformal-mapped nominal model of the work piece based on the three dimensional scan and a conformal-mapping model, wherein the conformal-mapped nominal model is generated using a machine learning technique;

comparing, by the computer based system, the three dimensional scan to a digital model of the work piece, the comparing further comprising:

comparing, by the computer based system, the conformal-mapped nominal model with the three dimensional scan; and

generating, by the computer based system, a difference map based on the comparison;

identifying, by the computer based system, an area of dimensional abnormality on the work piece based on the comparison, the identifying further comprising:

classifying, by the computer based system, the difference map into a positive feature set and a negative feature set and

matching, by the computer based system, the positive feature set and the negative feature set against an index of features to generate a matched feature set; and

instructing, by the computer based system, a computer numerical control tool system to alter the area of dimensional abnormality on the work piece.

15. The article of manufacture of claim 14 , further comprising:

registering, by the computer based system, the three dimensional scan against an ideal model of the work piece;

and

storing, by the computer based system, the conformal-mapped nominal model as model data.

16. The article of manufacture of claim 15 , wherein the comparing to a digital model further comprises

storing, by the computer based system, the difference map as model data.

17. The article of manufacture of claim 16 , wherein the identifying the area of dimensional abnormality comprises

saving, by the computer based system, the matched feature set as match data.

18. The article of manufacture of claim 17 , wherein the altering the area of dimensional abnormality comprises:

generating, by the computer based system, a tool instruction based on the match data; and

transmitting, by the computer based system, the tool instruction to the computer numerical control tool system.

19. The article of manufacture of claim 18 , wherein the conformal-mapping model proportionally adjusts a dimension of an ideal airfoil model.

20. The article of manufacture of claim 15 , wherein the operations further comprise deriving, by the computer based system, the conformal-mapping model in response to a plurality of three dimensional scan data.

Assignments (4)
CHANGE OF NAME Recorded Jul 27, 2023
From: RAYTHEON TECHNOLOGIES CORPORATION
To: RTX CORPORATION
Reel/Frame 064714/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE AND REMOVE PATENT APPLICATION NUMBER 11886281 AND ADD PATENT APPLICATION NUMBER 14846874. TO CORRECT THE RECEIVING PARTY ADDRESS PREVIOUSLY RECORDED AT REEL: 054062 FRAME: 0001. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF ADDRESS. Recorded Mar 4, 2021
From: UNITED TECHNOLOGIES CORPORATION
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 055659/0001 →
CHANGE OF NAME Recorded Sep 4, 2020
From: UNITED TECHNOLOGIES CORPORATION
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 054062/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 27, 2019
From: AUXIER, JAMES TILSLEY; BARRON, ALAN C.; COFALKA, NORMAN W.; WAGNER, JOEL H.
To: UNITED TECHNOLOGIES CORPORATION
Reel/Frame 049615/0623 →
Continuity (2)
Provisional Application 62688928 · Jun 22, 2018
Related Publication 20190391559A1 · Dec 26, 2019
Cited By (3)
US 12,617,018 US 12,643,152 US 12,656,102