IP Library Granted Patent US 9,095,994
Granted Patent B2
US 9,095,994 · App. 13/205,924 · Granted Aug 4, 2015

Method for applying variable magnetic properties to a induction heated tool face and manufacturing parts using the tool

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Quick Facts
Patent No.
US 9,095,994
App. No.
13/205,924
Granted
Aug 4, 2015
Kind
B2
Abstract

In accordance with an exemplary embodiment, a method for manufacturing a tool comprises applying at least one ferro-magnetic material to at least a portion of a tool face of a different material. The method produces a tool face with varying magnetic properties facilitating substantially uniform induction heating of the tool face.

Claims (25)

1. A method, comprising:

applying a first ferro-magnetic material to at least a first portion of a tool face, the first ferro-magnetic material having a first amount of chromium and being a different material than the tool face with different magnetic properties;

applying a second ferro-magnetic material to at least a second portion of the tool face, the second ferro-magnetic material having a second amount of chromium being different than the first amount of chromium and also being a different material than the tool face with different magnetic properties;

whereby, substantially uniform temperature is provided across the tool face during induction heating thereof.

2. The method of claim 1 , wherein applying further comprises laser deposition of the first and second ferro-magnetic material to the tool face.

3. The method of claim 1 , wherein applying further comprises applying the first and second ferro-magnetic material to the tool face via closed-loop direct metal deposition.

4. The method of claim 1 , wherein applying further comprises applying the first and second ferro-magnetic material to the tool face via a three-dimensional printing process.

5. The method of claim 1 , wherein applying further comprises applying the first and second ferro-magnetic material to voids formed in the tool face.

6. The method of claim 1 , wherein applying further comprises applying the first and second ferro-magnetic material to substantially all of the tool face.

7. The method of claim 1 , further comprising processing dimensions of the tool face in a processor to model electromagnetic heating of the tool face via a finite element analysis program.

8. The method of claim 7 , further comprising determining via the processor the portions of the tool face to which the first and second ferro-magnetic material will be applied.

9. A method, comprising:

applying, via a three-dimensional printing process, a first and second steel-based ferro-magnetic material to at least a portion of a tool face, the first and second steel-based ferro-magnetic material having different amounts of chromium and being a different material than the tool face with different magnetic properties, and providing substantially uniform temperature across the tool face during induction heating thereof.

10. The method of claim 9 , wherein applying further comprises applying the first and second steel-based ferro-magnetic material to voids formed in the tool face.

11. The method of claim 9 , wherein applying further comprises applying the first and second steel-based ferro-magnetic material to substantially all of the tool face.

12. The method of claim 9 , further comprising processing dimensions of the tool face in a processor to model electromagnetic heating of the tool face via a finite element analysis program.

13. The method of claim 12 , further comprising determining via the processor the at least a portion of the tool face to which the first and second steel-based ferro-magnetic material will be applied.

14. The method of claim 9 , wherein applying further comprising applying, via the three-dimensional printing process, the first and second steel-based ferro-magnetic material in layers to at least a portion of a tool face.

15. A method, comprising:

determining a temperature profile of a tool face;

determining, via a processor, at least a portion of the tool face to which first and second steel-based ferro-magnetic material will be applied; and

applying, via a three-dimensional printing process, the first and second steel-based ferro-magnetic material to the at least a portion of a tool face, the first and second steel-based ferro-magnetic material having different amounts of chromium and being a different material than the tool face with different magnetic properties, and providing substantially uniform temperature across the tool face during induction heating thereof.

16. The method of claim 15 , wherein applying further comprises applying the first and second steel-based ferro-magnetic material to voids formed in the tool face.

17. The method of claim 15 , wherein applying further comprises applying the first and second steel-based ferro-magnetic material to substantially all of the tool face.

18. The method of claim 15 , wherein applying further comprising applying, via the three-dimensional printing process, the first and second steel-based ferro-magnetic material in layers to the at least a portion of a tool face.

Assignments (5)
RELEASE OF SECURITY INTEREST Recorded Nov 7, 2014
From: WILMINGTON TRUST COMPANY
To: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Reel/Frame 034186/0776 →
SECURITY AGREEMENT Recorded Jun 28, 2012
From: GM GLOBAL TECHNOLOGY OPERATIONS LLC
To: WILMINGTON TRUST COMPANY
Reel/Frame 028458/0184 →
CORRECTIVE ASSIGNMENT TO CORRECT THE TITLE OF THE APPLICATION METHOD FOR APPLYING VARIABLE MAGNETIC PROPERTIES TO A TOOL FACE AND MANUFACTURING PARTS USING THE TOOL PREVIOUSLY RECORDED ON REEL 026733 FRAME 0974.ASSIGNOR(S) HEREBY CONFIRMS THE TITLE:METHOD FOR APPLYING VARIABLE MAGNETIC PROPERTIES TO A INDUCTION HEATED TOOL FACE AND MANUFACTURING PARTS USING THE TOOL Recorded Jun 27, 2012
From: MOUROU, JULIEN P.; DE SOUZA, URBAN J.
To: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Reel/Frame 028449/0756 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 27, 2012
From: MOUROU, JULIEN P.; DE SOUZA, URBAN J.
To: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Reel/Frame 028454/0851 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 11, 2011
From: MOUROU, JULIEN P.; DE SOUZA, URBAN J.
To: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Reel/Frame 026733/0974 →