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1. WO2020225749 - CONDUCTIVE POST-FURNACE HEATING OF SHEET FOR HOT FORMING

Publication Number WO/2020/225749
Publication Date 12.11.2020
International Application No. PCT/IB2020/054291
International Filing Date 06.05.2020
IPC
C21D 8/02 2006.01
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
8Modifying the physical properties by deformation combined with, or followed by, heat treatment
02during manufacturing of plates or strips
B21D 22/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
22Shaping without cutting, by stamping, spinning, or deep-drawing
02Stamping using rigid devices or tools
B21D 37/16 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
37Tools as parts of machines covered by this subclass
16Heating or cooling
C21D 1/00 2006.01
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
1General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
C21D 9/46 2006.01
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
9Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
46for sheet metals
Applicants
  • MAGNA INTERNATIONAL INC. [CA]/[CA]
Inventors
  • SHI, Cangji
  • DENIJS, Eric
  • CHAREST, Pascal
Priority Data
62/843,61406.05.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CONDUCTIVE POST-FURNACE HEATING OF SHEET FOR HOT FORMING
(FR) CHAUFFAGE DE TÔLE PAR CONDUCTION POST-FOUR POUR LE FORMAGE À CHAUD
Abstract
(EN)
A system for producing components by hot forming includes a conductive post-furnace heat station, a furnace, a computer system, and a press. The computer system comprises one or more physical processors operatively connected with the furnace and the conductive post-furnace heat station. The one or more physical processors being programmed with computer program instructions which, when executed cause the computer system to control the furnace to heat the blank to a temperature that is below AC3 temperature; and control the conductive post-furnace heat station to heat a portion of the heated blank to a temperature above the AC3 temperature by thermal conduction. The press is constructed and arranged to receive the post-heated blank from the post-furnace heat station and to form the post-heated blank into the shape of the component.
(FR)
L'invention concerne un système pour la production d'éléments par formage à chaud, comprenant un poste de chauffage par conduction post-four, un four, un système informatique et une presse. Le système informatique comprend un ou plusieurs processeurs physiques connectés fonctionnellement au four et au poste de chauffage par conduction post-four. Le ou les processeurs physiques sont programmés avec des instructions de programme informatique qui, lorsqu'elles sont exécutées, amènent le système informatique à commander le four pour chauffer l'ébauche à une température qui est au-dessous de la température AC3 ; et commander le poste de chauffage par conduction post-four pour chauffer une partie de l'ébauche chauffée à une température au-dessus de la température AC3 par conduction thermique. La presse est conçue et agencée pour recevoir l'ébauche post-chauffée provenant du poste de chauffage post-four et pour mettre l'ébauche post-chauffée sous la forme de l'élément.
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