METHOD OF FORMING A PANEL FROM A METAL ALLOY SHEET

A method is provided for forming a panel from a metal alloy sheet having known stress-strain forming properties including a forming strain limit that is exceeded when a single forming operation is used to form the panel. The method comprises determining a stress relieving treatment and an incrementa...

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Bibliographische Detailangaben
Hauptverfasser:	KRAUSE ALBERT, GILLARD ALAN, GOLOVASHCHENKO SERGEY
Format:	Patent
Sprache:	eng
Schlagworte:	CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PUNCHING METAL TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE 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 method is provided for forming a panel from a metal alloy sheet having known stress-strain forming properties including a forming strain limit that is exceeded when a single forming operation is used to form the panel. The method comprises determining a stress relieving treatment and an incremental forming treatment for forming the panel. The total incremental forming strain comprises a first strain increment. The stress relieving treatment results in the total incremental forming strain remaining within the forming strain limit. A first preform shape is determined in which the geometry of the shape does not exceed the first strain increment. The sheet is formed into the first preform shape. The first preform shape is then stress relieved. The first preform shape is then formed into a panel shape having a geometry that is within the total incremental forming strain.