EP3212348B1 - Procédé de fabrication d'un élément structurel par formage d'une plaque en acier - Google Patents

Procédé de fabrication d'un élément structurel par formage d'une plaque en acier Download PDF

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Publication number
EP3212348B1
EP3212348B1 EP15786860.5A EP15786860A EP3212348B1 EP 3212348 B1 EP3212348 B1 EP 3212348B1 EP 15786860 A EP15786860 A EP 15786860A EP 3212348 B1 EP3212348 B1 EP 3212348B1
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EP
European Patent Office
Prior art keywords
blank
temperature
forming
component
heat treatment
Prior art date
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Active
Application number
EP15786860.5A
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German (de)
English (en)
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EP3212348A1 (fr
Inventor
Ingwer Denks
Stefan MÜTZE
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Salzgitter Flachstahl GmbH
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Salzgitter Flachstahl GmbH
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Publication of EP3212348A1 publication Critical patent/EP3212348A1/fr
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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
    • 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
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
    • 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
    • B21D22/04—Stamping using rigid devices or tools for dimpling
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • 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
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • 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
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/001—Shaping combined with punching, e.g. stamping and perforating
    • 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
    • B21D53/00—Making other particular articles
    • B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
    • 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
    • C21D1/02—Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
    • 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
    • C21D1/26—Methods of annealing
    • 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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • 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
    • 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
    • C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/002—Bainite
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite
    • 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
    • C21D2221/02—Edge parts
    • 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
    • C21D2261/00—Machining or cutting being involved

Definitions

  • the invention relates to a method for producing a component by forming a blank made of steel, according to the preamble of claim 1, which allows a high formability work-hardened, mechanically separated sheet edges.
  • a component is understood to be a component produced from a sheet metal blank by forming by means of a forming tool at room temperature.
  • sheet materials are all deformable metal materials into consideration, but especially steel.
  • the sheet metal blanks may be uncoated or provided with a metallic and / or organic corrosion protection coating.
  • Such components are mainly used in body construction, but also in the home appliance industry, in mechanical engineering or construction offer opportunities.
  • the material suppliers are trying to meet the necessary material requirements by reducing the wall thicknesses by providing high-strength and ultra-high-strength steels, while at the same time improving component behavior during production and operation.
  • a sheet metal blank of hot or cold strip is first cut to size at room temperature.
  • the cutting process is usually mechanical separation processes, such. shearing or punching, but more rarely also thermal separation methods, such as e.g. laser cutting, for use.
  • Thermal separation processes are significantly more costly compared to mechanical separation processes, so that they are used only in exceptional cases.
  • the cut board After cutting the cut board is placed in a forming tool and in single or multi-stage forming steps the finished component, such as. a chassis carrier generated.
  • the cut edges especially when raised or raised, e.g. in collar operations in perforated boards, particularly stressed.
  • the aforementioned damage to the sheet edges can lead to premature failure in subsequent forming operations or during operation of the component.
  • the testing of the forming behavior of cut sheet edges with regard to their edge crack sensitivity is carried out with a hole expansion test according to ISO 16630.
  • Object of the present invention is to provide a method for producing a cold-formed component of a sheared at room temperature sheet metal plate with occasionally various other performed at room temperature manufacturing steps, such as punching or cutting operations, which reduces the previously described damage to the cutting areas in their effect or eliminates and thus the edge crack sensitivity in the subsequent cold forming of the sheet metal blank reduced or even eliminated.
  • the method should be simple and inexpensive to implement and achieve comparable and / or improved properties on the one hand in the production, in particular with respect to the formability of the cut edges and on the other hand in the component, in particular with respect to the static strength.
  • this object is achieved by a method for producing a component by forming a steel circuit board at room temperature, having a high formability and reduced crack sensitivity mechanically cut or punched edges on the board, in which the board previously from a tape or Sheet is cut at room temperature, where appropriate, further manufacturing steps, such as Punching or cutting operations, to achieve recesses or openings on the sheet or the board are carried out at room temperature and then the prepared board in one or more steps to a component at room temperature is formed, which is characterized in that regardless of the deformation to a component at any time after cutting the blank and any further punching or cutting operations which, by the cutting or punching operations cold-hardened sheet edge portions, which undergo a subsequent cold working in the manufacture of the component, to a temperature of at least 600 ° C. are heated and the time of the temperature application is less than 10 seconds.
  • further manufacturing steps such as Punching or cutting operations
  • the heat is applied over the entire sheet thickness and in the plane direction of the board in a range which corresponds at most to the sheet thickness.
  • the duration of the heat depends on the type of heat treatment process.
  • the heating itself can take place arbitrarily, for example, conductively, inductively via radiation heating or by means of laser processing.
  • Excellent for the Heat treatment is the conductive heating, as it is often used, for example in the automotive industry on the example of spot welds.
  • a spot welding machine with rather short exposure times for the treatment of punched holes in the board, whereas in indefinite to be treated edge portions, the inductive method, radiation heating or laser machining with longer exposure times in question.
  • an advantageous development of the invention provides for rinsing these areas with inert gases, for example argon.
  • the inert gas purging takes place during the duration of the heat treatment but can also, if necessary, be made shortly before the beginning and / or in a limited period of time after the heat treatment has been carried out.
  • the heat input is very concentrated in the shear-influenced cutting edge areas and is therefore associated with a relatively low energy consumption, in particular with regard to methods in which the entire board is supplied to a heating or by orders of magnitude temporally more expensive stress relief is applied.
  • the process window for the temperature to be reached in the cutting edge area is also very large and covers a temperature range from above 600 ° C up to the solidus temperature of approx. 1500 ° C.
  • the method according to the invention has the advantage that only microstructural changes are made by the heat treatment of the shard-influenced edge regions, and the strength is not generally reduced, but rather increased.
  • the insensitivity to edge cracks in the sense of a larger Lochaufweititess, can thus be improved by a factor of 2 or even more than 3.
  • the method according to the invention allows more complex component geometries and thus greater design freedom when using the same materials.
  • the fatigue strength of the cold-formed component is expected not to be reduced due to the self-adjusting, but possibly harder but homogeneous compared to the initial state but homogeneous structure, but with pronounced two-phase structures such. Dual phase structures increased.
  • the heat treatment of the cold-cut edge regions to be cold can be completed at any time after the cutting or punching processes and before forming the board or as an intermediate step in multi-stage forming operations of the board are carried out to form a component, so that the process steps cutting or punching the board, heat treatment of the cutting edges and forming the board are completely decoupled from one another.
  • the production is much more flexible than is possible in the prior art in integration of edge modification by heat treatment.
  • the method can be integrated as an intermediate production step in a series production which specifies a cycle in the range of 0.1 to 10 seconds.
  • the production of sheet metal components in the automotive sector in several successive steps thus represents a predestined scope.
  • the forming of the board prepared in this way can advantageously be carried out with the forming tools already in production, since no additional heating devices, such as e.g. Ovens, to heat the board itself are necessary. This allows a further cost-effective production and by the decoupling of the manufacturing steps a high flexibility in the production process.
  • the heating of the cut edges may be provided with a downstream heat treatment device or this may be directly upstream of the forming device for cold forming of the board.
  • the board itself may for example be rolled flexibly with different thicknesses or be joined from cold or hot strip of the same or different thickness and / or quality.
  • the invention is applicable to hot or cold rolled steel strip from soft to high strength steels, eg with yield strengths from 140 MPa to 1200 MPa, which may be provided with a corrosion inhibiting layer as a metallic and / or organic coating.
  • the metallic coating may for example consist of zinc or an alloy of zinc or of magnesium or of aluminum and / or silicon.
  • FIG. 1 the hole-widening test according to ISO 16630 is shown schematically on heat-treated cut edges according to the invention.
  • the heat treatment takes place only at the shard-influenced cut edges as an intermediate step after cutting the blank and before reshaping edge-near areas.
  • the experimental set - up for the conductive heat treatment of shard - influenced cut edges is in FIG. 2 shown.
  • step 1 a sheet with a hole punched out therein (step 1) in the area of the shard-influenced sheet edges heat-treated (step 2). Thereafter, in step 3, the actual hole widening takes place by means of a punch, which is subsequently determined on the tested sample.
  • the opposing spot welding electrodes have a diameter larger than the punched hole, so that the shard-influenced hole edges can be heat-treated.
  • the electrodes have a hemispherical shape on the ends contacting the hole edges, so that the sheet is simply centered on the one hand, and on the other hand, the heat can be concentrated only introduced into the sheer-influenced region.
  • the shape of the contacting electrode tip should be adapted to the respective geometric configuration of the edge areas.
  • a treatment duration ie the duration of the current flow in the case of inductive heating and the duration of the power reduction by the laser, or the duration of action of other heat sources in a range of 20 ms to at most 10 s, in but usually advantageous between 100 ms to apply to 2000 ms. It is essential in any case that a temperature of at least 600 ° C at the location of the heat treatment is achieved.
  • the main process parameters are, in addition to the duration of treatment, and in the case of inductive heating, the current, which was varied between 4 and 10 kA.
  • the laser heat treatment first, a laser power of 5 kW was set, which was spread on a circular area of about 12 mm, so that about a ring mold with 1 mm edge width of the cut circular hole of the sample with the diameter of 10 mm was heat-treated.
  • FIG. 3 The results of hole expansion tests according to ISO 16630 on uncoated samples HDT780C after conductive heat treatment of the shard affected cut edges are the FIG. 3 and corresponding results on hot - dip galvanized samples HCT780CD and uncoated samples HDT780C after heat treatment of the shard - influenced cut edges by means of laser are the FIG. 4 refer to.
  • FIG. 5 shows in the upper part of the picture on the left, in a schematic representation in a plan view of a hole punched in a sheet, which according to the invention was heat treated in the region of the hole edge.
  • the self-adjusting microstructures in the heat-affected area are shown schematically in the upper part of the picture on the right.
  • the structure In the near edge area of approx. 0.5 mm, the structure consists of 100% martensite. As a result, there was heating above Ac3, which was rapidly cooled. As the distance to the edge increases, the proportion of bainite increases up to a distance to the edge Edge of about 2.5 mm, from which 100% bainite is present. From an edge distance of 2.5 mm, the structure was no longer subject to conversion, so that here treatment temperatures were below Ac1 (about 700 ° C).
  • the hardness increase ( FIG. 5 , lower part of the image) in the vicinity of the hole edge is typical for microalloyed bainitic hot strip and results from the subsequent separation of nanoparticles in the temperature range of about 500 ° C - 700 ° C.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Heat Treatment Of Articles (AREA)
  • Laser Beam Processing (AREA)
  • Metal Rolling (AREA)

Claims (15)

  1. Procédé de fabrication d'un élément structurel par formage d'une plaque en acier à température ambiante, présentant une formabilité élevée et une sensibilité aux fissures réduite de bords estampés ou coupés mécaniquement sur la plaque, pour lequel la plaque est découpée précédemment dans une bande ou tôle à température ambiante, dans lequel d'autres étapes de fabrication telles que des opération d'estampage ou de coupe sont réalisées de temps en temps pour l'obtention d'évidements ou interruptions sur la tôle ou la plaque à température ambiante et la plaque ainsi préparée est ensuite formée dans une ou plusieurs étapes en un élément structurel à température ambiante,
    caractérisé en ce
    qu'indépendamment du formage en un élément structurel à un moment quelconque après la découpe de la plaque et d'éventuelles autres opérations d'estampage ou de coupe, les zones de bord de tôle écrouies par les opérations de coupe ou d'estampage qui subissent un formage à froid consécutif lors de la fabrication de l'élément structurel sont chauffées à une température d'au moins 600 °C et la durée de la mise à température s'élève au moins à 10 secondes.
  2. Procédé selon la revendication 1,
    caractérisé en ce
    que le temps de la mise à température s'élève de 0,02 à 10 secondes.
  3. Procédé selon la revendication 2,
    caractérisé en ce
    que le temps de la mise à température s'élève de 0,1 à 2 secondes.
  4. Procédé selon les revendications 1 à 3,
    caractérisé en ce
    que le chauffage des zones de bord de tôle écrouies est effectué à une température de 600 °C jusqu'à la température de solidus.
  5. Procédé selon la revendication 4,
    caractérisé en ce
    que le chauffage des zones de bord de tôle écrouies est effectué à une température de Ac1 jusqu'à la température de solidus.
  6. Procédé selon les revendications 1 à 5,
    caractérisé en ce
    que le chauffage à une température de formage est effectué par induction, conduction, au moyen du chauffage par rayonnement ou au moyen du rayonnement laser.
  7. Procédé selon la revendication 6,
    caractérisé en ce
    que le chauffage est effectué au moyen d'un dispositif de soudage par résistance ou au moyen d'un laser.
  8. Procédé selon au moins l'une quelconque des revendications 1 à 7,
    caractérisé en ce
    que la plaque est formée dans une ou plusieurs étapes.
  9. Procédé selon l'une quelconque des revendications 1 à 8,
    caractérisé en ce
    que la plaque de tôle présente un revêtement organique et/ou métallique.
  10. Procédé selon la revendication 9,
    caractérisé en ce
    que le revêtement métallique contient du Zn et/ou du Mg et/ou du Al et/ou du Si.
  11. Procédé selon l'une quelconque des revendications 1 à 10,
    caractérisé en ce
    que le traitement thermique est effectué dans le sens du plan de la plaque, à partir du bord de tôle, dans une zone qui correspond au maximum à l'épaisseur de tôle.
  12. Procédé selon l'une quelconque des revendications 1 à 11,
    caractérisé en ce
    que la zone est protégée de l'oxydation autour du point du traitement thermique.
  13. Procédé selon l'une quelconque des revendications 1 à 12,
    caractérisé en ce
    que pour la protection de l'oxydation, la zone est rincée au moyen d'un gaz inerte autour du point du traitement thermique au moins pendant l'action de la chaleur.
  14. Procédé selon la revendication 13,
    caractérisé en ce
    que la zone est rincée au moyen d'un gaz inerte autour du point du traitement thermique en outre avant et/ou après l'action de la chaleur.
  15. Utilisation d'une plaque d'acier pour le formage en un élément structurel à température ambiante, pour laquelle la plaque est découpée mécaniquement avant le formage dans une bande ou tôle à température ambiante et d'autres opérations d'estampage ou de coupe sont réalisées de temps en temps pour l'obtention d'évidements ou interruptions à température ambiante, pour laquelle avant le formage en un élément structurel sur les bords de tôle coupés ou estampés qui ont subi un écrouissage, un traitement thermique d'au moins 600 °C est réalisé pendant une durée de 0,02 à 10 secondes ou 0,1 à 2 secondes.
EP15786860.5A 2014-10-31 2015-10-06 Procédé de fabrication d'un élément structurel par formage d'une plaque en acier Active EP3212348B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014016614.7A DE102014016614A1 (de) 2014-10-31 2014-10-31 Verfahren zur Herstellung eines Bauteils durch Umformen einer Platine aus Stahl
PCT/DE2015/100414 WO2016066155A1 (fr) 2014-10-31 2015-10-06 Procédé de fabrication d'un élément structurel par formage d'une plaque en acier

Publications (2)

Publication Number Publication Date
EP3212348A1 EP3212348A1 (fr) 2017-09-06
EP3212348B1 true EP3212348B1 (fr) 2018-09-12

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EP15786860.5A Active EP3212348B1 (fr) 2014-10-31 2015-10-06 Procédé de fabrication d'un élément structurel par formage d'une plaque en acier

Country Status (9)

Country Link
US (1) US20170333971A1 (fr)
EP (1) EP3212348B1 (fr)
KR (1) KR102469605B1 (fr)
CN (1) CN107208170B (fr)
DE (1) DE102014016614A1 (fr)
ES (1) ES2701869T3 (fr)
MX (1) MX2017005563A (fr)
RU (1) RU2701810C2 (fr)
WO (1) WO2016066155A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11383288B2 (en) 2019-01-25 2022-07-12 Toyota Jidosha Kabushiki Kaisha Method of processing steel plate and punching machine
US11732317B2 (en) 2019-01-25 2023-08-22 Toyota Jidosha Kabushiki Kaisha Method for processing steel plate

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016107152B4 (de) 2016-04-18 2017-11-09 Salzgitter Flachstahl Gmbh Bauteil aus pressformgehärtetem, auf Basis von Aluminium beschichtetem Stahlblech und Verfahren zur Herstellung eines solchen Bauteils und dessen Verwendung
DE102016121905A1 (de) 2016-11-15 2018-05-17 Salzgitter Flachstahl Gmbh Verfahren zur Herstellung von Radschüsseln aus Dualphasenstahl mit verbesserter Kaltumformbarkeit
DE102016121902A1 (de) * 2016-11-15 2018-05-17 Salzgitter Flachstahl Gmbh Verfahren zur Herstellung von Fahrwerksteilen aus mikrolegiertem Stahl mit verbesserter Kaltumformbarkeit
DE102017103743A1 (de) 2017-02-23 2018-08-23 Salzgitter Flachstahl Gmbh Verfahren zur optimierten Herstellung eines Bauteils mit zumindest einem Nebenformelement
DE102017103729A1 (de) 2017-02-23 2018-08-23 Salzgitter Flachstahl Gmbh Verfahren zur Herstellung eines Bauteils durch Weiterformen einer vorgeformten Kontur
MX2020006701A (es) * 2017-12-25 2020-08-20 Jfe Steel Corp Metodo para fabricar un producto formado por prensa.
US20220049324A1 (en) * 2019-02-27 2022-02-17 Jfe Steel Corporation Method for manufacturing steel sheet for cold press and method for manufacturing press component
US20220388574A1 (en) * 2019-11-08 2022-12-08 Autotech Engineering, S.L. A forming sheet metal part for a vehicle frame and corresponding production method
JP2022108601A (ja) * 2021-01-13 2022-07-26 トヨタ自動車株式会社 成形加工方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2063832C1 (ru) * 1994-07-20 1996-07-20 Александр Николаевич Жученко Способ изготовления плоских изделий с выступами типа рельсовых подкладок
DE19619034C2 (de) * 1995-07-18 1998-01-22 Mannesmann Ag Verfahren zur Verbesserung der Umformbarkeit bei der Herstellung von Bauteilen aus Leichtmetallband
US6143241A (en) * 1999-02-09 2000-11-07 Chrysalis Technologies, Incorporated Method of manufacturing metallic products such as sheet by cold working and flash annealing
RU2230621C2 (ru) * 2002-03-26 2004-06-20 Оренбургский государственный университет Способ изготовления гнутых деталей и устройство для его осуществления
DE102004038626B3 (de) * 2004-08-09 2006-02-02 Voestalpine Motion Gmbh Verfahren zum Herstellen von gehärteten Bauteilen aus Stahlblech
MY157529A (en) * 2008-02-07 2016-06-15 Bluescope Steel Ltd Metal-coated steel strip
DE102008014559A1 (de) * 2008-03-15 2009-09-17 Elringklinger Ag Verfahren zum bereichsweisen Umformen einer aus einem Federstahlblech hergestellten Blechlage einer Flachdichtung sowie Einrichtung zur Durchführung dieses Verfahrens
JP5565785B2 (ja) * 2009-03-05 2014-08-06 株式会社デルタツーリング 構造材
DE102009049155B4 (de) 2009-10-12 2017-01-05 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Ermittlung der Kantenrissempfindlichkeit eines Blechmaterials und Vorrichtung zum Herstellen eines Prüflings aus diesem Blechmaterial
SE535821C2 (sv) * 2011-07-06 2013-01-02 Gestamp Hardtech Ab Sätt att varmforma och härda ett tunnplåtsämne
CA2850195C (fr) * 2011-09-30 2016-10-25 Nippon Steel & Sumitomo Metal Corporation Feuille d'acier galvanise par immersion a chaud et a haute resistance qui presente une excellente resistance aux chocs et procede de production de cette derniere et feuille d'acie r galvanise par immersion a chaud alliee et a haute resistance et procede de production correspondant
DE102011054866A1 (de) * 2011-10-27 2013-05-02 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines warmumgeformten und pressgehärteten Kraftfahrzeugkarosseriebauteils sowie Kraftfahrzeugkarosseriebauteil
DE102011054865B4 (de) * 2011-10-27 2016-05-12 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines warmumgeformten und pressgehärteten Kraftfahrzeugkarosseriebauteils sowie Kraftfahrzeugkarosseriebauteil
DE102011121904A1 (de) 2011-12-21 2013-06-27 Volkswagen Aktiengesellschaft Verfahren zur scherenden Bearbeitung von Blechen mit einer anschließenden Umformung sowie ein hierzu bestimmtes Schneidwerkzeug
DE102012006941B4 (de) * 2012-03-30 2013-10-17 Salzgitter Flachstahl Gmbh Verfahren zur Herstellung eines Bauteils aus Stahl durch Warmumformen
DE102014001979A1 (de) * 2014-02-17 2015-08-20 Wisco Tailored Blanks Gmbh Verfahren zum Laserschweißen eines oder mehrerer Werkstücke aus härtbarem Stahl im Stumpfstoß

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11383288B2 (en) 2019-01-25 2022-07-12 Toyota Jidosha Kabushiki Kaisha Method of processing steel plate and punching machine
US11732317B2 (en) 2019-01-25 2023-08-22 Toyota Jidosha Kabushiki Kaisha Method for processing steel plate

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KR102469605B1 (ko) 2022-11-21
ES2701869T3 (es) 2019-02-26
DE102014016614A1 (de) 2016-05-04
KR20170077192A (ko) 2017-07-05
EP3212348A1 (fr) 2017-09-06
US20170333971A1 (en) 2017-11-23
RU2701810C2 (ru) 2019-10-01
RU2017118583A3 (fr) 2019-04-24
RU2017118583A (ru) 2018-11-30
CN107208170A (zh) 2017-09-26
CN107208170B (zh) 2019-06-14
MX2017005563A (es) 2017-12-14

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