METHOD OF MANUFACTURE OF A STRUCTURAL COMPONENT OF A VEHICLE

The invention relates to a method for the manufacture of a structural component of a vehicle, starting from a HSS or UHSS steel plate with a protective coating. The method comprises the operation of subjecting the plate to a prior hot stamping formation, followed by a subsequent operation of subject...

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Bibliographische Detailangaben
Hauptverfasser:	PERARNAU RAMOS, FRANCESC, GARCIA, MICHEL, VILA FERRER, ELISENDA
Format:	Patent
Sprache:	eng ; fre ; ger
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 structural component of a vehicle, starting from a HSS or UHSS steel plate with a protective coating. The method comprises the operation of subjecting the plate to a prior hot stamping formation, followed by a subsequent operation of subjecting at least one localized and previously selected zone (Z) of the hot stamped plate to a subsequent heat treatment, irradiating it with a diode laser beam of a power comprised between 500 W - 6 kW until reaching a temperature between 400-900 °C, then leaving it to cool at room temperature or at a controlled cooling rate equal to or less than 10 °C/s to change its microstructure, providing said localized zone with an intentionally lower martensite content and a lower yield strength and greater elongation in comparison with those of its adjacent zones not subjected to said heat treatment.