The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 29, 1990
Filed:
May. 04, 1989
Applicant:
Inventor:
Mohammad A Zaidi, Monroeville, PA (US);
Assignee:
Aluminum Company of America, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22F / ;
U.S. Cl.
CPC ...
148 / ; 148437 ; 148438 ; 148439 ; 148440 ;
Abstract
There is provided a method of fabricating sheet stock having reduced earing during container forming. The method comprises the steps of providing a body of an aluminum base alloy suitable for rolling into sheet stock for forming containers therefrom and hot rolling the body to provide a flat rolled product having a hot rolled structure. The flat rolled product is provided with 5 to 20% of the structure being recrystallized. Thereafter, it is annealed in the temperature range of 400.degree. to 700.degree. F. to provide a fully recrystallized product which is cold rolled to sheet stock having reduced earing during container forming.