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:
Jul. 12, 2022
Filed:
May. 09, 2018
Aleris Aluminum Duffel Bvba, Duffel, BE;
Ali Asghar Sarban, Turnhout, BE;
Peter De Smet, Sint-Martens-Latem, BE;
ALERIS ALUMINUM DUFFEL BVBA, Duffel, BE;
Abstract
Method of manufacturing aluminium alloy rolled sheet product with excellent formability and good paint bake hardenability, including: casting Al—Si—Mg aluminium alloy ingot including, in wt. %: Si 1.0% to 1.50%, Mg 0.10% to 0.40%; heating the ingot to above 550° C.; maintaining the ingot above 550° C. for at least about 4 hours; cooling the ingot to 460° C. to 520° C. Maintaining the ingot at 460° C. to 520° C. for less than 6 hours. Hot-rolling the ingot in one or more rolling steps to intermediate gauge of 15 to 40 mm. The hot-mill exit temperature is 370° C. to 480° C. Further hot-rolling from intermediate gauge in one or more rolling steps to final hot rolling gauge. The hot-mill exit temperature is 310° C. to 400° C. Cooling the hot-rolled material at hot rolling final gauge from hot-mill exit temperature to ambient temperature. Cold rolling the hot-rolled product to a cold-rolled product of final gauge.