Heat treatment and tube forming process for high strength aluminum tube body structure reinforcements

A first method is disclosed for forming a tubular reinforcement that comprises the steps of: providing a 7xxx aluminum tube, heating tube to at least 450° C. and water quenching the tube in less than or equal to 20 seconds after heating. All of the forming processes on the tube are then completed fr...

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Bibliographische Detailangaben
Hauptverfasser:	Luckey, Jr., S. George, Ilinich, Andrey M, Harrison, Nia R, Danyo, Michael William
Format:	Patent
Sprache:	eng
Schlagworte:	CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	A first method is disclosed for forming a tubular reinforcement that comprises the steps of: providing a 7xxx aluminum tube, heating tube to at least 450° C. and water quenching the tube in less than or equal to 20 seconds after heating. All of the forming processes on the tube are then completed from within 1 to 8 hours of quenching. A second method for forming a tubular reinforcement is disclosed that comprises the steps of providing a 7xxx-O temper aluminum tube and forming the tube into a predetermined shape. The tube in then heated the tube to at least 450° C. and quenched the tube with water or air in a hydroforming die just prior to or while hydroforming the tube.