Light weight component with internal reinforcement

Patent metadata

Field	Value
Publication number	US-11040372-B2
Application number	US-201916377730-A
Country	US
Kind code	B2
Filing date	Apr 8, 2019
Priority date	Apr 12, 2016
Publication date	Jun 22, 2021
Grant date	Jun 22, 2021

Abstract

A light weight component, the light weight component including: a metallic foam core formed into a desired configuration; an external metallic shell applied to an exterior surface of the metallic foam core after it has been formed into the desired configuration; an inlet opening and an outlet opening formed in the external metallic shell in order to provide a fluid path through the metallic foam core; and a thermoplastic material injected into the metallic foam core via the inlet opening.

First claim

What is claimed is:

1. A component, comprising:
a metallic foam core having a desired configuration;
an external metallic shell located on an exterior surface of the desired configuration of the metallic foam core;
an inlet opening and an outlet opening formed in the external metallic shell;
a fluid path extending from the inlet opening through the metallic foam core to the outlet opening; and
a thermoplastic material completely filling the fluid path and extending from the inlet opening to the outlet opening and completely filling the metallic foam core, the thermoplastic material being injected into the metallic foam core through the external metallic shell after the external metallic shell has been applied to the exterior surface of the metallic foam core, wherein the thermoplastic material remains within the metallic foam core after it has solidified.

2. The component as in claim 1 , wherein a thickness of the external metallic shell varies in order to provide localized structural rigidity to the component and wherein the metal of the metallic foam core is selected from the group comprising: titanium; cobalt; aluminum, nickel, steel alloys, magnesium, copper, molybdenum, niobium, tungsten, zinc alloys, titanium aluminide, nickel aluminide, and molybdenum disilicide.

3. The component as in claim 1 , wherein the metal of the metallic foam core is selected from the group comprising: titanium, cobalt, aluminum, nickel, steel alloys, magnesium, copper, molybdenum, niobium, tungsten, zinc alloys, titanium aluminide, nickel aluminide and molybdenum disilicide.

4. The component as in claim 1 , wherein the metallic foam core is an open cell structure.

5. The component as in claim 1 , wherein the metallic foam core is formed into the desired configuration by a machining process selected from the group comprising: milling, electrical discharge machining (EDM), water-jet machining, and laser machining, wherein the desired configuration is smaller than final dimensions of the component.

6. The component as in claim 1 , wherein the metallic foam core is a sheet of metallic foam and the sheet of metallic foam is formed into the desired configuration by a hot or cold forming process, and wherein the sheet of metallic foam is placed in a die.

7. The component as in claim 6 , wherein the metallic foam core is formed into the desired configuration by a machining process selected from the group comprising: milling, grinding, electrical discharge machining (EDM), water-jet machining, and laser machining after the hot or cold forming process.

8. The component as in claim 1 , wherein the external metallic shell is deposited on the exterior surface of the metallic foam core via an application process selected from the group comprising: flame spray application process, plasma spray application process, cold-spray application process, electron beam physical vapor deposition (EB/PVD), chemical vapor deposition (CVD), and electroplating application process.

9. The component as in claim 1 , wherein an interim coat is deposited on the exterior surface of the metallic foam core prior to the application of the external metallic shell.

10. The component as in claim 9 , wherein the interim coat is a ceramic based thermal barrier coating.

11. The component as in claim 1 , wherein the metallic foam core is heat treated after the external metallic shell has been applied to the exterior surface of the metallic foam core.

12. The component as in claim 1 , wherein additional features are formed in the metallic foam core after the external metallic shell has been applied to the exterior surface of the metallic foam core.

13. The component as in claim 12 , wherein the additional features are formed by a drilling process.

14. The component as in claim 1 , wherein the inlet opening and the outlet opening are formed by a drilling process.

15. The component as in claim 1 , wherein a thickness of the external metallic outer shell varies in order to provide localized structural rigidity to the component.

16. The component as in claim 1 , wherein the component is a bracket.

Assignees

• United Technologies Corp
• Raytheon Tech Corp

Inventors

• Roberge Gary D

Classifications

• C22C1/083

  Foaming process in molten metal other than by powder metallurgy · CPC title

• B22F3/26 Primary

  Impregnating {(making ferrous alloys by impregnation C22C33/0242)} · CPC title

• B05D7/22 Primary

  to internal surfaces, e.g. of tubes · CPC title

• B22F10/64

  by thermal means (control of energy beam parameters for post heating B22F10/364) · CPC title

• B22F10/25

  Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS] · CPC title