Patent ID: 6572984
Filing Date: 2003-06-03
Classification: B23K,Y10T

Abstract:
A laminate structure comprised of two sheets of base metals having an alloy layer therebetween made by the method comprising the steps of:(a) presenting a first sheet of a base metal having a plated surface with a first alloyable metal plated thereon; (b) presenting a second sheet of a base metal having a plated surface with said first alloyable metal plated thereon; (c) placing a sheet of a second alloyable metal between said plated surface of said first and second sheets of base metal to form an unconsolidated structure; then (d) applying a first pressure to said first and second sheets of base metal to compress said sheet of second alloyable metal disposed therebetween; (e) heating the compressed structure to a phase transition temperature that is less than the melting point of said first alloyable metal and said second alloyable metal; (f) applying a second pressure greater than said first pressure in order to induce flow of a liquid phase and disrupt any oxide layers present at an interface between said first and second sheets of base metal and said second alloyable metal; then (g) maintaining the compressed structure at the phase transition temperature and said second pressure to form a laminate structure; then (h) cooling the laminate structure.