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:
Mar. 05, 1985
Filed:
Oct. 03, 1983
Heinz J Althoff, Oberursel, DE;
Vereinigte Deutsche Metallwerke AG, Frankfurt am Main, DE;
Abstract
This invention relates to a wrought aluminum alloy, to its use for making semifinished and finished products and to processes of improving the properties, particularly the strength properties, of semifinished and finished products made of that alloy. A wrought aluminum alloy is proposed which contains 1.15 to 2.0% manganese, more than 1.0 and up to 2.0% silicon, 0.25 to 0.65% magnesium, 0.2 to 1.0% iron, not in excess of 0.3% copper, not in excess of 0.2% zinc, not in excess of 0.1% zirconium, not in excess of 0.1% titanium, balance aluminum and other impurities in a total not in excess of 0.2%. In FIG. 1, the ultimate tensile stresses which can be obtained with three different combinations of cooling rate and subsequent final cold reduction are plotted as a function of the magnesium content, the prior art being represented by magnesium contents of 0.2% and less.