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:
Oct. 04, 1983
Filed:
Nov. 19, 1980
Carmen C Manzonelli, Corapolis, PA (US);
David A Chatfield, Michigan City, IN (US);
National Steel Corporation, Pittsburgh, PA (US);
Abstract
A method of producing high tensile aluminum-magnesium alloy sheet from an aluminum-based melt containing a relatively low percentage of magnesium, such as 1.5-2.3%, in which the melt is formed into a sheet having a uniform thickness between 1/8-1/2 inch quenched to a temperature below about 500.degree. F. within a period of not more than three (3) minutes, in which the quenched sheet is cold rolled straight down to a thickness between 0.01 and 0.02 inch without the application of extraneous heat to the sheet. The resulting aluminum-magnesium alloy sheet has a fully-hardened tensile strength in excess of 50,000 psi.