EP2907881A3 - Thermoforming line and method for the preparation of thermoformed sheet metal products - Google Patents

Thermoforming line and method for the preparation of thermoformed sheet metal products Download PDF

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Publication number
EP2907881A3
EP2907881A3 EP15154074.7A EP15154074A EP2907881A3 EP 2907881 A3 EP2907881 A3 EP 2907881A3 EP 15154074 A EP15154074 A EP 15154074A EP 2907881 A3 EP2907881 A3 EP 2907881A3
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EP
European Patent Office
Prior art keywords
heating
plate
plate body
station
sheet metal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP15154074.7A
Other languages
German (de)
French (fr)
Other versions
EP2907881A2 (en
EP2907881B2 (en
EP2907881B1 (en
Inventor
Dipl.-Ing. Frost (FH) Georg
Dipl.-Ing. Max Niesse
Dr. Jan Lackmann
Stefan Konrad
Dr. Hans-Gerd Lambers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Benteler Automobiltechnik GmbH
Original Assignee
Benteler Automobiltechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Benteler Automobiltechnik GmbH filed Critical Benteler Automobiltechnik GmbH
Publication of EP2907881A2 publication Critical patent/EP2907881A2/en
Publication of EP2907881A3 publication Critical patent/EP2907881A3/en
Application granted granted Critical
Publication of EP2907881B1 publication Critical patent/EP2907881B1/en
Publication of EP2907881B2 publication Critical patent/EP2907881B2/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/16—Heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B21D22/022—Stamping using rigid devices or tools by heating the blank or stamping associated with heat treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/208—Deep-drawing by heating the blank or deep-drawing associated with heat treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/06—Surface hardening
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/34—Methods of heating
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
    • H05B3/24—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor being self-supporting
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C21D1/673—Quenching devices for die quenching
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2221/00—Treating localised areas of an article

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

Eine Warmformlinie zur Herstellung von warmumgeformten und pressgehärteten Blechprodukten aus Metallplatinen 6 umfasst eine Heizstation 1 und eine Umformstation 2. Die Heizstation 1 weist ein Unterwerkzeug 3 und ein Oberwerkzeug 4 auf, zwischen denen eine Metallplatine 6 zum Erwärmen aufgenommen wird. Die Erwärmung bzw. Aufheizung einer Metallplatine 6 in der Heizstation 1 erfolgt durch mittelbare Widerstandserwärmung. Die Wärme wird außerhalb der Metallplatine 6 erzeugt und gelangt durch Wärmeleitung in die Metallplatine 6 selber. Hierzu weist das Unterwerkzeug 3 und/oder das Oberwerkzeug 4 eine elektrische Widerstandsheizung 7 mit zumindest einem Flächenheizelement auf. Erfindungsgemäß ist das Flächenheizelement eine Heizplatte 8 mit einem Plattenkörper 9 aus einem elektrisch leitfähigen Material, wobei der Plattenkörper 9 als Heizleiter 11 ausgebildet ist. Hierzu ist der Plattenkörper 9 geschlitzt und beispielsweise mit einem Schlitz 10 versehen, welcher sich über die Dicke d des Plattenkörpers 9 erstreckt.

Figure imgaf001
A hot forming line for producing hot-formed and press-hardened sheet metal products from metal blanks 6 comprises a heating station 1 and a forming station 2. The heating station 1 has a lower tool 3 and an upper tool 4, between which a metal plate 6 is received for heating. The heating or heating of a metal plate 6 in the heating station 1 by indirect resistance heating. The heat is generated outside the metal plate 6 and passes through heat conduction into the metal plate 6 itself. For this purpose, the lower tool 3 and / or the upper tool 4 has an electrical resistance heater 7 with at least one surface heating element. According to the invention the surface heating element is a heating plate 8 with a plate body 9 made of an electrically conductive material, wherein the plate body 9 is formed as a heating element 11. For this purpose, the plate body 9 is slotted and provided for example with a slot 10 which extends over the thickness d of the plate body 9.
Figure imgaf001
EP15154074.7A 2014-02-07 2015-02-06 Thermoforming line and method for the preparation of thermoformed sheet metal products Active EP2907881B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014101539.8A DE102014101539B9 (en) 2014-02-07 2014-02-07 Hot forming line and method of making hot formed sheet metal products

Publications (4)

Publication Number Publication Date
EP2907881A2 EP2907881A2 (en) 2015-08-19
EP2907881A3 true EP2907881A3 (en) 2015-09-30
EP2907881B1 EP2907881B1 (en) 2019-04-24
EP2907881B2 EP2907881B2 (en) 2021-11-10

Family

ID=52462183

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15154074.7A Active EP2907881B2 (en) 2014-02-07 2015-02-06 Thermoforming line and method for the preparation of thermoformed sheet metal products

Country Status (4)

Country Link
US (1) US20170066030A1 (en)
EP (1) EP2907881B2 (en)
CN (2) CN104894352B (en)
DE (1) DE102014101539B9 (en)

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Publication number Priority date Publication date Assignee Title
DE102014112244A1 (en) * 2014-08-26 2016-03-03 Benteler Automobiltechnik Gmbh Method and press for producing at least partially hardened sheet metal components
DE102015101668A1 (en) * 2015-02-05 2016-08-11 Benteler Automobiltechnik Gmbh Double falling heating and forming tool and method for producing thermoformed and press-hardened motor vehicle components
DE102015106298B4 (en) * 2015-04-24 2017-01-26 Semikron Elektronik Gmbh & Co. Kg Device, method and system for inhomogeneous cooling of a flat object
DE102015215179A1 (en) * 2015-08-07 2017-02-09 Schwartz Gmbh Method of heat treatment and heat treatment device
DE102015121842B4 (en) * 2015-12-15 2018-11-29 Benteler Automobiltechnik Gmbh Method for operating a tempering station
DE102015122796A1 (en) * 2015-12-23 2017-06-29 Benteler Automobiltechnik Gmbh Hot forming line for the production of hot-formed and press-hardened sheet steel products and method for its operation
DE102016101975B4 (en) 2016-02-04 2017-10-19 Voestalpine Metal Forming Gmbh Apparatus for producing hardened steel components and method for hardening
DE102016113403B4 (en) 2016-07-20 2018-10-18 Benteler Automobiltechnik Gmbh Temperature control station and method for operating the temperature control station
DE102017113592B4 (en) 2016-07-20 2018-12-06 Benteler Automobiltechnik Gmbh Process for the production of shape-hardened vehicle components with different mechanical properties and tempering device
EP3276012A1 (en) * 2016-07-29 2018-01-31 Benteler Automobiltechnik GmbH Tempering station with jacket heating conductor
EP3507038B1 (en) * 2016-08-30 2021-07-28 Magna International Inc. Tool with heater for forming part with tailored properties
CN107052172B (en) * 2017-06-12 2019-08-09 中船黄埔文冲船舶有限公司 Firer's tooling that a kind of Double curve degree plate processing method and this method use
DE102017223252A1 (en) * 2017-12-19 2019-06-19 Volkswagen Aktiengesellschaft Press arrangement and method for producing a hot-formed and press-hardened sheet steel part
PL3778054T3 (en) * 2019-08-14 2022-03-21 Automation, Press And Tooling, Ap & T Ab Intermediate heating station
CN110773630B (en) * 2019-11-05 2022-02-11 山东钢铁集团日照有限公司 Method for solving uneven conductive heating temperature of irregular blank
US20210213510A1 (en) * 2020-01-10 2021-07-15 TE Connectivity Services Gmbh Heated guide track for a press machine for manufacturing a strip
DE102020127057A1 (en) 2020-10-14 2022-04-14 Benteler Automobiltechnik Gmbh Process for the production of a steel plate and temperature control station
CN113967683B (en) * 2021-10-22 2024-06-21 重庆金克罗夫门窗制造有限公司 Cold press molding device for manufacturing metal doors and windows
WO2024038475A1 (en) * 2022-08-16 2024-02-22 M.I.T. S.R.L. Electrical resistance heating element, more particularly distributed-element resistance and method for realizing such a heating element

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DE102012110649B3 (en) * 2012-11-07 2013-11-14 Benteler Automobiltechnik Gmbh Thermoforming line and method for producing a hot-formed and press-hardened motor vehicle component

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DE102012110649B3 (en) * 2012-11-07 2013-11-14 Benteler Automobiltechnik Gmbh Thermoforming line and method for producing a hot-formed and press-hardened motor vehicle component

Also Published As

Publication number Publication date
DE102014101539B4 (en) 2016-06-16
EP2907881A2 (en) 2015-08-19
DE102014101539B9 (en) 2016-08-11
EP2907881B2 (en) 2021-11-10
CN104894352A (en) 2015-09-09
US20170066030A1 (en) 2017-03-09
DE102014101539A1 (en) 2015-08-13
EP2907881B1 (en) 2019-04-24
CN104894352B (en) 2018-04-24
CN108486325A (en) 2018-09-04

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