METHOD OF PRODUCING HOT-STAMPED ARTICLE

• Main Authors: HISADA KOHEI, KAKITA TAKESHI
• Format: Patent
• Language: Chinese; English
• Published: 20.07.2016
• Subjects: APPARATUS THEREFOR; CHEMICAL SURFACE TREATMENT; CHEMISTRY; CLADDING OR PLATING BY SOLDERING OR WELDING; CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS; 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; ELECTROFORMING; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; 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; PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS; SOLDERING OR UNSOLDERING; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING; WELDING; WORKING BY LASER BEAM

A method of producing a hot-stamped article includes: a forming process of heating a galvanized steel sheet (1) on which a galvanized layer (12) is formed and forming the heated galvanized steel sheet (1) by hot stamping; a removal process of irradiating, after the forming step, an oxide film (13) formed on a surface of the galvanized layer (12) with laser light to remove the oxide film (13); and a coating process of performing, after the removal process, a coating treatment on the galvanized steel sheet (1) formed by hot stamping. 热冲压制品的制造方法包括：成形工序，对其上形成有镀锌层(12)的镀锌钢板(1)进行加热并通过热冲压将经加热的镀锌钢板(1)成形；除去工序，在成形工序后对形成于镀锌层(12)的表面上的氧化膜(13)照射激光以除去氧化膜(13)；涂装工序，在除去工序后在通过热冲压成形的镀锌钢板(1)上进行涂装处理。