Method For Applying Brazing Material To Metal Honeycomb Matrix, Metal Honeycomb Matrix And Manufacturing Method Thereof
US-2016031027-A1 · Feb 4, 2016 · US
Brazing without tools
US9789556B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9789556-B2 |
| Application number | US-201514883994-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 15, 2015 |
| Priority date | Apr 15, 2013 |
| Publication date | Oct 17, 2017 |
| Grant date | Oct 17, 2017 |
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- Title
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Abstract
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A method for assembling a set including an inner wall, a shrouded outer wall and an intermediate element, each presenting substantially circular sections, the shrouded outer wall presenting a shape substantially complementary to a shape of outer and inner surfaces of the intermediate element, and whose inner surface covers the outer surface of the intermediate element. In particular, the method includes a step of placing a brazing sheet, whose melting temperature is lower than melting temperatures of other elements of the set, over an assembly surface in contact with another assembly surface, and a step of heating, by a furnace, a set including the outer or inner walls and the intermediate element between which is interposed a brazing sheet so as to fix the outer or inner wall by brazing on the intermediate element.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for assembling a set comprising an inner wall, a shrouded outer wall and an intermediate element, each presenting substantially circular sections, the shrouded outer wall presenting a shape substantially complementary to a shape of outer and inner surfaces of the intermediate element, and whose inner surface covers the outer surface of the intermediate element, wherein the method comprises at least one step of placing at least one brazing sheet, whose melting temperature is lower than melting temperatures of other elements of the set, over at least one assembly surface in contact with another assembly surface, at least one step of heating, by means of a furnace and without tooling, a set comprising at least one of the outer or inner wads and the intermediate element between which is interposed at least one brazing sheet so as to fix the outer or inner wall by brazing on the intermediate element, wherein the heating is up to a melting temperature of the brazing sheet and lower than a melting temperature of the at least one outer or inner wall and the intermediate member, and wherein the method comprises a step of radially expanding the inner wall, by means of an expansion tooling of an assembly device, in such a manner that the inner wall comes into contact with and takes the shape of the inner surface of the intermediate element. 2. The method according to claim 1 , wherein the method comprises a step of placing at least one brazing sheet over all or part of the inner surface of the outer wall. 3. The method according to claim 1 , wherein the method comprises a step of placing at least one brazing sheet over all or part of the inner surface of the intermediate element. 4. The method according to claim 1 , wherein the method comprises a step of introducing the intermediate element in a volume delimited by the outer wall in such a manner that the inner surface of the outer wall covers the outer surface of the intermediate element. 5. The method according to claim 1 , wherein the method comprises a step of introducing an inner wall in a volume delimited by the intermediate element in such a manner that the inner surface of the intermediate element covers the outer surface of the inner wall. 6. The method according to claim 1 , wherein the step of radially expanding the inner wall is achieved by pressure of at least one solid element on the inner wall. 7. The method according to claim 1 , wherein the step of radially expanding the inner wall is accomplished by expansion tooling comprising a hydroforming tool.
Assignees
Inventors
Classifications
Brazing of turbine parts · CPC title
- B21D26/033Primary
Deforming tubular bodies (corrugating tubes by applying fluid pressure B21D15/03, B21D15/10) · CPC title
Brazing of honeycomb sandwich structures · CPC title
by permanently joining parts together · CPC title
Brazing · CPC title
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Frequently asked questions
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- What does patent US9789556B2 cover?
- A method for assembling a set including an inner wall, a shrouded outer wall and an intermediate element, each presenting substantially circular sections, the shrouded outer wall presenting a shape substantially complementary to a shape of outer and inner surfaces of the intermediate element, and whose inner surface covers the outer surface of the intermediate element. In particular, the method…
- Who is the assignee on this patent?
- Aircelle Sa
- What technology area does this patent fall under?
- Primary CPC classification B21D26/033. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Oct 17 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).