Patent ID: 6569270
Filing Date: 2003-05-27
Classification: B21B,B21J,C22C,C22F,C23C

Abstract:
A process for producing a metal article, with fine metallurgical structure and texture comprising:providing a metal billet; heating the billet to a forging temperature below the recrystallization temperature of the metal; applying a solid lubricant between press plates of a forging machine in which the billet is to be forged and the ends of the billet to be forged to reduce the friction during forging; forging the billet to a desired billet thickness with about 70% to 90% reduction; bringing the forged billet to about room temperature; rolling the billet with a reduction in thickness per rolling pass sufficient to provide near uniform strain distribution to produce a plate; and recrystallization annealing the plate.