Aleris Aluminum Duffel Bvba

Corus Aluminum Walzprodukte Gmbh

Corus Aluminum Nv

Aleris Aluminum Koblenz Gmbh

Peter De Smet

Marc-Jan De Haas

Job Anthonius Van Der Hoeven

Bruno Schepers

Linzong Zhuang

Ali Asghar Sarban

Jean Pierre Jules Baekelandt

Linzhong Zuang

Method of manufacturing aluminium alloy rolled sheet product with excellent formability and good paint bake hardenability, including: casting Al&#x2014;Si&#x2014;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&#xb0; C.; maintaining the ingot above 550&#xb0; C. for at least about 4 hours; cooling the ingot to 460&#xb0; C. to 520&#xb0; C. Maintaining the ingot at 460&#xb0; C. to 520&#xb0; 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&#xb0; C. to 480&#xb0; 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&#xb0; C. to 400&#xb0; 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.

Method of manufacturing an Al&#x2014;Si&#x2014;Mg alloy rolled sheet product with excellent formability

A method of manufacturing aluminium alloy rolled sheet with excellent formability and suitable for an automotive body, the method including: casting an ingot of aluminium alloy of, in wt. %: Si 0.5 to 1.5, Mg 0.2 to 0.7, Fe 0.03 to 0.30, Cu up to 0.30, optionally one or more elements selected from the group of: (Mn, Zr, Cr, V), Zn up to 0.3, Ti up to 0.15, impurities and aluminium; homogenising the cast ingot at 450&#xb0; C. or more; hot rolling the ingot to a hot-rolled product; cold rolling the hot-rolled product to a cold-rolled product of intermediate gauge; continuous intermediate annealing the cold-rolled product of intermediate gauge in the range of 360-580&#xb0; C.; cold rolling the intermediate annealed cold-rolled product to a sheet of final gauge up to 2.5 mm; solution heat treating the sheet; and quenching the solution heat treated sheet.

Method of manufacturing an Al&#x2014;Mg&#x2014;Si alloy rolled sheet product with excellent formability

Automotive body sheet in the form of an aluminum composite sheet material wherein a clad sheet is applied to at least one side of a core material, and wherein the core material is of an aluminum alloy selected from the group consisting of AA2xxx, AA5xxx and AA7xxx-series alloys, and wherein the clad sheet includes an AA6xxx-series alloy having less than 0.2 wt. % Cu or an AA5xxx-series alloy having less than 3.6 wt. % of Mg.

Aluminium composite sheet material

Automotive body sheet in the form of an aluminium composite sheet material wherein a clad sheet is applied to at least one side of a core material, and wherein the core material is of an aluminium alloy selected from the group consisting of aa2xxx, aa5xxx and aa7xxx-series alloys, and wherein the clad sheet includes an AA6xxx-series alloy having less than 0.2 wt. % Cu or an AA5xxx-series alloy having less than 3.6 wt. % of Mg.

Automotive body sheet in the form of an aluminium composite sheet material wherein a clad sheet is applied to at least one side of a core material, and wherein the core material is of an AA6xxx-series alloy, and wherein the clad sheet includes an AA5xxx-series alloy having less than 3.6 wt. % of Mg.

A method of making a wrought aluminium-magnesium alloy rolled product, having a composition (in wt. %) of: 3.1&#x3c;Mg&#x3c;4.5; 0.4&#x3c;Mn&#x3c;0.85; 0.4&#x3c;Zn&#x3c;0.8; 0.06&#x3c;Cu&#x3c;0.35; 0.06&#x3c;Cr&#x3c;0.2; Fe&#x3c;0.35; Si&#x3c;0.2; Zr&#x3c;0.05; Ti&#x3c;0.3; impurities&#x2266;0.05 each up to a total of max. 0.15, and balance aluminium.

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Sint-Martens-Latem, Belgium

Peter De Smet