Process for obtaining a clad article with a copper base alloy core

Claim 1

A PROCESS FOR OBTAINING A COMPOSITE ARTICLE HAVING A CORE OF A COPPER BASE ALLOY CLAD WITH A DISSIMILAR METAL WHICH COMPRISES: (A) PROVIDING SAID CORE IN PLATE FORM IN A THICKNESS LESS THAN 1/2 INCH; (B) PROVIDING SAID CLADDING IN PLATE FORM IN A THICKNESS LESS THAN 1/4 INCH; (C) HEATING SAID CORE TO A TEMPERATURE BETWEEN 300 AND 1000*F.; (D) ROLLING TOGETHER SAID CORE AND CLADDING AT A SPEED OF AT LEAST 100 FEET PER MINUTE IN ONE PASS AT A REDUCTION BETWEEN 40 AND 80%, WITH SAID CORE AND CLADDING COMING TOGETHER FOR THE FIRST TIME IN THE BITE OF THE ROLLS, SAID CLADDING CONTACTING THE ROLL PRIOR TO CONTACTING THE CORE, WITH THE INCLUDED ANGLE BETWEEN CORE AND CLADDING UPON ENTERING THE ROLLS BEING IN EXCESS OF 5 DEGREES, THEREBY FORMING AN INTEGRATED COMPOSITE ARTICLE.