METHOD FOR THE HOT FORMING OF A STEEL COMPONENT

• Main Authors: LASS Jan, GRAUL Matthias, HARTMANN Haucke-Frederik
• Format: Patent
• Language: English
• Published: 12.04.2018
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; 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; DIFFUSION TREATMENT OF METALLIC MATERIAL; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

A method for hot forming a steel component is provided. The steel component is heated into a range of complete or partial austenitization in a heat treatment step. The heated steel component is both hot-formed and quench-hardened in a forming step. A first pretreatment step precedes the heat treatment step in terms of process, in which first pretreatment step the steel component is provided with a corrosion-resistant protective layer in order to protect against scaling in the heat treatment step. Before the heat treatment step is performed, a surface oxidation process occurs in a second pre-treatment step, in which a weakly reactive, corrosion-resistant oxidation layer is formed on the scale protection layer by means of which oxidation layer abrasive tool wear is reduced in the forming step.