Direct Chill Casting of CLAD Ingot


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Novelis Inc. recently released its first new innovative technology which opens new opportunities in the clad aluminum product marketplace, where a combination of mechanical and physical properties can be obtained which are superior to the monolithic material alone. Clad aerospace and brazing products are well known commercial products which are provided by commercial roll bonding processes, but which can now be produced with the new Novelis technology. This paper discusses the new technology, e.g., the casting, fabrication, the properties of clad sheet are reported and it is established that the clad-core interface is comprised of a high strength, oxide free zone. This technology enables a new family of clad products with clad/core combinations which cannot be produced by the conventional roll bonding process.



Materials Science Forum (Volumes 519-521)

Edited by:

W.J. Poole, M.A. Wells and D.J. Lloyd




R. B. Wagstaff et al., "Direct Chill Casting of CLAD Ingot", Materials Science Forum, Vols. 519-521, pp. 1809-1814, 2006

Online since:

July 2006




[1] Method for Casting Composite Ingot, US Patent Filing 20050011630, January 20, (2005).

[2] D.J. Lloyd; Internal Memorandum (Confidential) CLAD AA1200/AA2124, Laboratory Report 13, September (2004).

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