ASSEMBLY OF AN ALUMINIUM COMPONENT AND OF A PRESS HARDENED STEEL PART HAVING AN ALLOYED COATING COMPRISING SILICON, IRON, ZINC AND MAGNESIUM, THE BALANCE BEING ALUMINUM

• Main Authors: MACHADO AMORIM, Tiago, MOREL, Stéphane, DOSDAT, Laurence, GREGOIRE, Astrid
• Format: Patent
• Language: English; French
• Published: 15.10.2020
• Subjects: ALLOYS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; CLADDING OR PLATING BY SOLDERING OR WELDING; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; DIFFUSION TREATMENT OF METALLIC MATERIAL; FERROUS OR NON-FERROUS ALLOYS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; 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; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WELDING; WORKING BY LASER BEAM

The present invention relates to an assembly of an aluminium-based part and a press hardened steel part provided with an alloyed coating comprising in weight percent, 0.1 to 15.0% silicon, 15.0 to 70% of iron, 0.1 to 20.0% of zinc, 0.1 to 4.0% of magnesium, the balance being aluminum, on at least one of the surfaces thereof placed so as to be in contact with the aluminium-based part. La présente invention concerne un ensemble formé d'une partie à base d'aluminium et d'une partie en acier trempé à la presse ayant un revêtement allié comportant, en pourcentage en poids, 0,1 à 15,0 % de silicium, 15,0 à 70 % de fer, 0,1 à 20,0 % de zinc, 0,1 à 4,0 % de magnésium, le reste étant de l'aluminium, sur au moins une de ses surfaces et placé de manière à être en contact avec la partie à base d'aluminium