Process for manufacturing clad aluminum-lithium alloys

Details Process for manufacturing clad aluminum-lithium alloys Process for manufacturing clad aluminum-lithium alloys

B - Operations, Transporting

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B23K 3/00 (2006.01) B23K 20/04 (2006.01) B23K 20/22 (2006.01) B32B 15/01 (2006.01)

Patent

CA 1244609

PROCESS FOR MANUFACTURING CLAD ALUMINUM-LITHIUM ALLOYS ABSTRACT OF THE INVENTION A metallurgical bond at the interface between an aluminum-lithium core alloy and a metallic liner is achieved by first forming a mechanical bond along the interface between the core and liner under moderated temperature and reduction conditions, and then heating the composite without simultaneous reduction to cause diffusion of the elements across the core-liner inter face. The result is a metallurgical bond securing the layers together to form a composite which can be worked, shaped, and fabricated by normal reduction techniques into a full range of products without the discoloration and fouling problems otherwise typical of aluminum-lith- ium alloys.

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