IP Library Granted Patent US 7,761,263
Granted Patent B2
US 7,761,263 · App. 11/142,546 · Granted Jul 20, 2010

Casting design optimization system (CDOS) for shape castings

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Quick Facts
Patent No.
US 7,761,263
App. No.
11/142,546
Granted
Jul 20, 2010
Kind
B2
Abstract

A casting design system ( 101 ) is provided which comprises (a) a database ( 115 ) which contains casting design data and rules, (b) a user interface ( 109 ), in communication with the database, which accepts as input a product design ( 103 ) that is to be cast by a casting process, and (c) an inference engine ( 111 ) which is adapted to generate casting designs ( 114 ) from the input product design by searching the database and retrieving data therefrom.

Claims (47)

1. A casting design system ( 101 ), comprising:

a database ( 115 ) which contains casting design data and rules pertaining to alloy properties, casting processes, geometrics, mined data and design rules;

a user interface ( 109 ), in communication with said database ( 115 ), which accepts as input a product design ( 103 ) that is to be cast by a casting process;

an inference engine ( 111 ) which is adapted to generate casting designs ( 114 ) from the input product design ( 103 ) by searching the database ( 115 ) and retrieving data therefrom, and by considering the influence of a casting method on a casting solution; and

a process simulation module ( 110 ) which performs process simulations on casting designs ( 114 ) generated by the inference engine ( 111 ).

2. The system of claim 1 , further comprising:

an optimization module ( 117 ) that optimizes the casting designs ( 114 ).

3. The system of claim 2 , wherein the optimization module ( 117 ) optimizes the casting process design by analyzing data generated by the process simulation module ( 110 ) on the design and, if the data generated indicates that the design is not optimal, performing the steps of:

modifying the casting design; and

inputting the modified casting design to the process simulation module ( 110 ).

4. The system of claim 1 , wherein the casting process involves casting the product covered by the product design from a metal.

5. The system of claim 4 , wherein the metal is selected from the group consisting of aluminum and its alloys.

6. The system of claim 1 , wherein the user interface further accepts casting design specifications ( 105 ) as an input.

7. The system of claim 1 , further comprising:

a geometry analysis module ( 113 ), in communication with said user interface ( 109 ), which analyzes the input product design ( 103 ) and generates the geometry characteristics of the product to be cast.

8. The system of claim 7 , wherein the inference engine ( 111 ) is in communication with said database ( 115 ), said geometry analysis module ( 113 ), and said user interface ( 109 ).

9. The system of claim 1 , wherein said process simulation module ( 110 ) is in communication with said inference engine ( 111 ) and said user interface ( 109 ).

10. The system of claim 1 , wherein the casting design data and rules include data and rules pertaining to the gating and riser.

11. The system of claim 1 , wherein the casting design data and rules include data and rules pertaining to metal alloys.

12. The system of claim 1 , wherein the optimization module ( 117 ) optimizes the casting design based on simulation results.

13. The system of claim 1 , wherein the optimization module ( 117 ) optimizes the casting design based on objective functions and casting design constraints.

14. The system of claim 1 , wherein said inference engine ( 111 ) is further adapted to generate casting designs by implementing logical processes.

15. The system of claim 1 , wherein said inference engine ( 111 ) is further adapted to generate casting designs by performing pattern-matching operations between data contained in the database ( 115 ) and search parameters.

16. The system of claim 1 , wherein the casting design includes casting procedures.

17. The system of claim 1 , wherein the casting design includes gating and riser designs.

18. The system of claim 1 , wherein the casting design includes an alloy selection.

19. The system of claim 1 , wherein the casting design includes a casting process selection.

20. A method for analyzing a casting design, comprising:

providing a proposed casting design ( 103 ) for optimization;

providing a database ( 115 ) which contains information relating to casting, the database including design rules, alloy properties, mined data, geometrics, and information relating to known casting methods;

analyzing the geometry ( 113 ) of the proposed casting design ( 103 ) with the use of the information contained in the database ( 115 ), thereby deriving a possible casting solution; and

designing and running a process simulation ( 110 ) on the possible casting solution.

21. The method of claim 20 , further comprising the step of:

optimizing ( 117 ) the casting design.

22. The method of claim 21 wherein, if the proposed casting design is not optimal but the proposed casting design geometry is castable, then at least one element selected from the group consisting of the gating design, riser design, alloy selection, and casting process is redefined for further process simulation and optimization.

23. The method of claim 20 , wherein the database ( 115 ) contains other casting solutions.

24. The method of claim 20 , wherein the casting design includes casting procedures.

25. The method of claim 20 , wherein the casting design includes gating and riser designs.

26. The method of claim 20 , wherein the casting design includes alloy selection.

27. A computer program, disposed in a tangible medium, and containing suitable instructions for implementing the method of claim 20 .

28. A casting design optimization system, comprising:

a knowledge database ( 115 ) which contains casting design data and rules pertaining to alloy properties, casting processes, geometries, mined data and design rules;

a graphical user interface ( 109 ), in communication with said knowledge database ( 115 ), which accepts as input a product design ( 103 ) for a product that is to be cast by a casting process;

a geometry analysis module ( 113 ), in communication with said graphical user interface ( 109 ), which analyzes the input product design ( 103 ) and generates the geometry characteristics of the product to be cast;

an inference engine ( 111 ) which is adapted to generate casting designs by (a) searching the knowledge database ( 115 ), (b) performing pattern-matching operations, and (c) implementing logical processes;

a process simulation module ( 110 ) which designs and runs process simulations on the casting designs generated by the inference engine ( 111 ); and

an optimization module ( 117 ) that optimizes the casting designs generated by the inference engine ( 111 ).

Assignments (12)
RELEASE OF SECURITY INTEREST Recorded Nov 7, 2014
From: WILMINGTON TRUST COMPANY
To: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Reel/Frame 034371/0676 →
CHANGE OF NAME Recorded Feb 10, 2011
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Reel/Frame 025780/0936 →
SECURITY AGREEMENT Recorded Nov 8, 2010
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: WILMINGTON TRUST COMPANY
Reel/Frame 025327/0001 →
RELEASE OF SECURITY INTEREST Recorded Nov 4, 2010
From: UNITED STATES DEPARTMENT OF THE TREASURY
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 025245/0442 →
RELEASE OF SECURITY INTEREST Recorded Nov 4, 2010
From: UAW RETIREE MEDICAL BENEFITS TRUST
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 025311/0770 →
SECURITY AGREEMENT Recorded Aug 28, 2009
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: UAW RETIREE MEDICAL BENEFITS TRUST
Reel/Frame 023162/0001 →
SECURITY AGREEMENT Recorded Aug 27, 2009
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: UNITED STATES DEPARTMENT OF THE TREASURY
Reel/Frame 023156/0052 →
RELEASE OF SECURITY INTEREST Recorded Aug 21, 2009
From: CITICORP USA, INC. AS AGENT FOR BANK PRIORITY SECURED PARTIES; CITICORP USA, INC. AS AGENT FOR HEDGE PRIORITY SECURED PARTIES
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 023127/0402 →
RELEASE OF SECURITY INTEREST Recorded Aug 20, 2009
From: UNITED STATES DEPARTMENT OF THE TREASURY
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 023124/0519 →
SECURITY AGREEMENT Recorded Apr 16, 2009
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: CITICORP USA, INC. AS AGENT FOR BANK PRIORITY SECURED PARTIES; CITICORP USA, INC. AS AGENT FOR HEDGE PRIORITY SECURED PARTIES
Reel/Frame 022553/0493 →
SECURITY AGREEMENT Recorded Feb 3, 2009
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: UNITED STATES DEPARTMENT OF THE TREASURY
Reel/Frame 022201/0363 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2005
From: WANG, QIGUI; JONES, PEGGY E.; OSBORNE, MARK A.; YANG, WENYING
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 016562/0924 →