CONSTRAINED METAL FLANGES AND METHODS FOR MAKING THE SAME

The present invention provides a method of making a flanged metal article. The method comprises (a) applying a first braze compound to a first portion of a metal article; (b) winding the first portion of a metal article with a length of a constraining metal member; and (c) heating an assembly of the...

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Bibliographische Detailangaben
Hauptverfasser: HARAN, KIRUBA SIVASUBRAMANIAM, DENIKE, KAREN KETTLER, LIPKIN, DON MARK, PETERSON, MYLES STANDISH, II, VAN DAM, JEREMY DANIEL
Format: Patent
Sprache:eng ; fre
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Beschreibung
Zusammenfassung:The present invention provides a method of making a flanged metal article. The method comprises (a) applying a first braze compound to a first portion of a metal article; (b) winding the first portion of a metal article with a length of a constraining metal member; and (c) heating an assembly of the metal article, the constraining metal member, and the first braze compound to a temperature above the solidus temperature of the first braze compound, typically a temperature in a range from about 300°C to about 2500°C, to provide a flanged metal article, wherein the metal article has a coefficient of thermal expansion CTE 1, the constraining metal member has a coefficient of thermal expansion CTE 2, and CTE 1 is greater than CTE 2. The invention further provides a metal flange, which minimizes thermal expansion mismatch between a high expansion metal and a low expansion brittle material.