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.

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.