METHOD OF MANUFACTURE OF A STRUCTURAL COMPONENT OF A VEHICLE

The invention relates to a method for the manufacture of a part of a structural component of a vehicle, intended to be connected by spot welding to a second part, starting from a coated steel plate and of a thickness of 1-3 mm, which comprises subjecting the plate to hot stamping, subsequently subje...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	PERARNAU RAMOS, FRANCESC, GARCIA, MICHEL, VILA FERRER, ELISENDA
Format:	Patent
Sprache:	eng ; pol
Schlagworte:	CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MACHINE TOOLS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	The invention relates to a method for the manufacture of a part of a structural component of a vehicle, intended to be connected by spot welding to a second part, starting from a coated steel plate and of a thickness of 1-3 mm, which comprises subjecting the plate to hot stamping, subsequently subjecting at least one localized and previously selected zone of the first part to a heat treatment, irradiating it with a diode laser beam of a power comprised between 500 W and 6 kW until reaching a temperature comprised between 400-900 °C, then leaving it to cool to change its microstructure, providing said zone with an intentionally lower martensite content and accordingly with a lower strength and greater elongation in comparison with those of its adjacent zones that have not been heat treated.