EP1106274A2 - Piece d'epaisseur non-uniforme en procede de fabrication - Google Patents

Piece d'epaisseur non-uniforme en procede de fabrication Download PDF

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Publication number
EP1106274A2
EP1106274A2 EP00125861A EP00125861A EP1106274A2 EP 1106274 A2 EP1106274 A2 EP 1106274A2 EP 00125861 A EP00125861 A EP 00125861A EP 00125861 A EP00125861 A EP 00125861A EP 1106274 A2 EP1106274 A2 EP 1106274A2
Authority
EP
European Patent Office
Prior art keywords
sheets
sheet
molded component
sheet metal
roll
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.)
Withdrawn
Application number
EP00125861A
Other languages
German (de)
English (en)
Other versions
EP1106274A3 (fr
Inventor
Udo Dr. Müller
Hartmut Dipl.-Ing. Heckermann
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.)
Salzgitter AG
Original Assignee
Salzgitter AG
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
Application filed by Salzgitter AG filed Critical Salzgitter AG
Publication of EP1106274A2 publication Critical patent/EP1106274A2/fr
Publication of EP1106274A3 publication Critical patent/EP1106274A3/fr
Withdrawn legal-status Critical Current

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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
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/005—Processes combined with methods covered by groups B21D1/00 - B21D31/00 characterized by the material of the blank or the workpiece
    • B21D35/006—Blanks having varying thickness, e.g. tailored blanks
    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/08—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles making use of forming-rollers

Definitions

  • the invention relates to a method for producing a Molded component of uneven thickness from at least two sheets, that by roll profiling between a rotating first Role and at least one opposite to the first role rotating second roller.
  • the invention relates furthermore relates to a particularly manufactured according to this method Molded component.
  • Molded components of uneven thickness enable weight-optimized Adaptation of the molded component to the occurring Charges. Accordingly, they are particularly popular in lightweight construction and used in the automotive field.
  • Such molded components can e.g. made from several sheet layers are deformed separately by the starting plates and then be connected together.
  • the use of several tools is necessary, generally due to the manufacturing tolerances only an inadequate one Fit of the two parts is achieved and, if necessary, post-processing necessary is.
  • Patchwork deep-drawing processes are also known, in which trimmed sheet metal together deep-drawn and together get connected.
  • Tailored blank processes are also known, where sheets of different thicknesses are first cut to size and be joined together and subsequently reshaped, e.g. be deep drawn.
  • patchwork deep-drawing processes are relatively complex and costly, since initially sheet metal cutouts from a starting material, e.g. a sheet metal coil, cut into a cutter, then e.g. through positioning pins in positioned on each other in the desired manner and subsequently in a deep-drawing device must be deep-drawn.
  • a starting material e.g. a sheet metal coil
  • positioning pins in positioned on each other in the desired manner and subsequently in a deep-drawing device must be deep-drawn.
  • discontinuous feeding of the deep-drawing device the respective sheet metal plates necessary.
  • Tailored blank forming processes are also relatively complex, because here, too, sheet metal blanks from a starting material have to be cut out, possibly aftertreatment of the frontal cut surfaces is necessary, the sheets on the narrow end faces welded together and subsequently a forming device, e.g. a deep-drawing device Need to become.
  • a forming device e.g. a deep-drawing device Need to become.
  • the invention has for its object over the prior art the technology to create improvements and in particular a cost-effective production of a molded component with a desired To allow variation of its thickness.
  • the above object is achieved by a molded component uneven thickness with at least two pieces of sheet metal together are formed by roll profiling and in connecting surfaces are interconnected.
  • two sheets e.g. on Base sheet and a reinforcement sheet to roll profiled together.
  • several reinforcement plates in particular one above the other or possibly side by side on the base plate be placed to desired thickness distributions of the molded component to reach.
  • two sheets can also be fed to the rolls in such a way that they partially overlap in the side areas, so that a roll-profiled molded component is produced that a middle, multi-layer area and outer single-layer areas having.
  • Both sheets become these, preferably in the area of the deformation linked together by further measures, for example by welding, gluing or an additional mechanical Shaping.
  • a greater variation in the thickness of the molded part enables.
  • the sheets can be rolled in one of the rolls downstream device, e.g. a welding device get connected.
  • a welding device e.g. an electrode welding process or an arc welding process, e.g. on magnetically controlled arc welding process (magnetic arc welding process) be used.
  • the sheets mechanically joined e.g. by turning over individual sheet metal parts, or be clinched or riveted.
  • connection of the sheets can also be done during roll profiling can be achieved by mechanical joining.
  • the deformation of the Sheets for mechanical joining by turning over individual sheet metal parts, Clinching or riveting requires versus the common Forming process for producing the molded parts by an order of magnitude less deformation and deformation force of the sheets.
  • an adhesive can also be used for the connection of the sheets used on the connecting side of a Sheets or the connecting sides of both sheets before roll profiling is applied.
  • the adhesive can harden after roll profiling.
  • a pressure-curing adhesive possible, which hardens during roll profiling.
  • the base plate and / or the reinforcement plate unrolled as strips directly from long coils of sheet metal so that one or both of the starting sheets are in an endless process can only be supplied in larger Periods requires a change of the sheet coil.
  • an inexpensive manufacture of the molded component is made possible, since the sheet delivered in sheet coils is not in front of the Manufacturing process first in an additional processing device can be cut into individual sheet metal sections must, as e.g. necessary for patchwork deep-drawing processes is.
  • the at least two sheets possibly also additional reinforcement sheets, unrolled directly from the sheet coil.
  • sheet metal sections as reinforcing sheets on the one rolled off a sheet coil Base plate be put on periodically. Such a process is particularly advantageous when using an adhesive, because of this a good and safe positioning of the reinforcement plate on the base plate.
  • the reinforcing plate can in particular have a smaller width have as the base plate and thus only individual areas reinforce the molded component. In this case it is advantageous feed the reinforcement plate above the base plate, since the wider base plate after roll profiling can be dissipated and the reinforcement plate wearing.
  • the reinforcing plate can in particular inside a semi-open area of the molded component, e.g. a trapezoidal shape, V-shape or U-shape can be arranged around this reinforce generally softer area.
  • an organic coating especially as an anti-corrosion agent
  • the sheets can be cut from the rolls after removal and subsequently connected. It is also possible to post the sheets are first removed from one another from the rolls connect and then cut out the molded component.
  • Base plate 3 and a reinforcing plate 4 are between peripheral surfaces 5 and 6 of the roles performed, seized by these and deformed perpendicular to the tape running direction, in particular indented. Subsequently, a molded component 7 is issued, the a deformed base plate piece 8 and a deformed reinforcing plate piece 9 has.
  • the base plate 3 and / or the reinforcement plate 4 can from Sheet coils are fed as strip material, so that the molded component 7 obtained by cutting the tape material produced can be. It is also possible to use prefabricated sheet metal sections for the base plate and / or the reinforcement plate use.
  • the base plate 3 from a sheet coil are fed as strip material and sheet metal sections predetermined length used as reinforcing plates 4 be periodically according to Figure 1 directly between the roles are supplied or on the base plate 3 at predetermined intervals be positioned so that they can then be between the rollers 1, 2 are deformed together with the base plate 3.
  • the reinforcing plate 4 can in particular have a smaller width have as the base plate 3.
  • the molded component can in particular a semi-open or concave shape or more have semi-open areas. In this case, the reinforcement plate lies advantageously inside the semi-open Area.
  • a molded component 7 is produced with a trapezoidal shape, inside the deformed reinforcing sheet piece 9 is arranged.
  • FIG. 2 with such a molded component also a border with several depressions, beads or edges be trained to achieve a desired shape or to increase the rigidity of the molded component.
  • the deformed piece of reinforcement sheet 9 lies in accordance with FIG trapezoidal or semi-open region 10 of the molded component 7, that in pages 11, 12, 13 of the trapezoidal area of the Base plate piece 8 surface sections 14, 15, 16 of the deformed Reinforcement plate piece 9 rest.
  • the lateral surface sections 14 and 15 can, according to FIG. 2 completely within the trapezoidal area of the base plate piece 8 lie. Alternatively, according to FIG deformed piece of reinforcing sheet 9 in edge sections 17, 18th from the semi-open or trapezoidal area 10 of the molded component stick out.
  • the deformed piece of reinforcing sheet metal 9 is advantageously located completely on the base plate piece 8. It can with the Base plate piece 8 over the entire area or in some areas be connected.
  • the metal strips 3, 4 are laterally offset to the longitudinal direction L. fed to the rollers 1, 2, a molded component according to Figure 5 are generated in which pieces of sheet metal 28,29 in lateral Edge areas or side areas 26, 27 overlap.
  • This Overlap can in particular, as shown in Figure 5, in a semi-open or concave region 110 are formed, so that this semi-open area is double-walled and thus reinforced is trained.
  • molded components with a greater width than the supplied sheet metal strips 3.4 are generated.
  • several tapes can also be arranged side by side deformed with partial overlap so that in principle, molded parts of any width can also be produced can.
  • connection of the deformed base plate piece 8 and the deformed Reinforcing sheet piece 9 can by a welding process after roll profiling. This can welding over a large area, e.g. through a magnetic arc process, or by individual welding spots, e.g. through a Electrode welding process can be achieved.
  • the Sheets can also be glued together. This is advantageous an adhesive on a connecting surface 20 of the base plate 3 and / or a connecting surface 21 of the reinforcing plate 4 attached. If the reinforcement plate 4 as in Figure 1, a smaller width than the base plate 3 has, the adhesive can in particular on the connecting surface 21 are provided.
  • the sheets are subjected to high pressure pressed against each other so that a good adhesive connection is achieved becomes.
  • the adhesive can harden after roll profiling. It is also possible to use a pressure-curing adhesive so that curing at least essentially during roll profiling takes place.
  • the base plate 3 and / or the reinforcement plate 4 can be coated with a coating, e.g. an organic coating. These organic Coating can serve in particular as an anti-corrosion agent, corrosion of the molded component between the two To prevent sheet metal parts.
  • the adhesive is appropriate in this case attached to the coated surface.
  • Figure 4 shows an elaborate molded component, which also a trapezoidal area 22 and cut holes 23, 24, 25.
  • the individual edges, Beads and edges are embossed during roll profiling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
EP00125861A 1999-12-01 2000-11-25 Piece d'epaisseur non-uniforme en procede de fabrication Withdrawn EP1106274A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1999157910 DE19957910A1 (de) 1999-12-01 1999-12-01 Verfahren zum Herstellen eines Formbauteils ungleichmäßiger Dicke
DE19957910 1999-12-01

Publications (2)

Publication Number Publication Date
EP1106274A2 true EP1106274A2 (fr) 2001-06-13
EP1106274A3 EP1106274A3 (fr) 2002-12-18

Family

ID=7931049

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00125861A Withdrawn EP1106274A3 (fr) 1999-12-01 2000-11-25 Piece d'epaisseur non-uniforme en procede de fabrication

Country Status (3)

Country Link
EP (1) EP1106274A3 (fr)
CZ (1) CZ20004449A3 (fr)
DE (1) DE19957910A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2313217A4 (fr) * 2008-07-10 2013-01-16 Shiloh Ind Inc Procédé de formage de métal et ensemble de bobine soudée
EP4311607A1 (fr) * 2022-07-28 2024-01-31 Metalkas S.A. Section métallique et son procédé de fabrication

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10339350B4 (de) † 2003-08-25 2011-06-30 ISE Automotive GmbH, 51702 Verfahren zum Halbwarm-oder Warmumformen von Blechen
DE10339068A1 (de) * 2003-08-26 2005-03-24 Daimlerchrysler Ag Wölbstrukturiertes Karosseriebauteil und Verfahren zu seiner Herstellung
DE102011120340A1 (de) * 2011-12-06 2013-06-06 Daimler Ag Herstellverfahren zu einer Herstellung eines Kraftfahrzeugverbundbauteils
DE102016008830A1 (de) * 2016-07-19 2018-01-25 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Verbund-Metallteil und Herstellungsverfahren dafür

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2254558A (en) * 1938-10-10 1941-09-02 Ivan A Williams Fastening element and method of making same
DE4416231B4 (de) * 1994-05-07 2004-02-26 Xaver Lipp Verfahren zur Herstellung eines zweilagigen Metallbandes und Vorrichtung zur Durchführung des Verfahrens
DE19742817A1 (de) * 1997-09-27 1999-04-15 Volkswagen Ag Platine für ein Strukturbauteil, Strukturbauteil und Verfahren zur Herstellung eines Strukturbauteils für Kraftfahrzeuge
DE19749728A1 (de) * 1997-11-11 1999-05-12 Schmolz & Bickenbach Verfahren zur Herstellung eines Rohrprofils aus zumindest einer Blechlage sowie Verbindung von Randbereichen der zumindest einen Blechlage
DE19901015A1 (de) * 1998-05-02 1999-11-04 Hahn Ortwin Vorrichtung und Verfahren zum umformtechnischen Fügen von Teilen
EP0953386A3 (fr) * 1998-05-02 2002-04-03 Hahn, Ortwin, Prof. Dr.-Ing. Dispositif et méthode de connection des pièces par déformation plastique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2313217A4 (fr) * 2008-07-10 2013-01-16 Shiloh Ind Inc Procédé de formage de métal et ensemble de bobine soudée
EP4311607A1 (fr) * 2022-07-28 2024-01-31 Metalkas S.A. Section métallique et son procédé de fabrication

Also Published As

Publication number Publication date
EP1106274A3 (fr) 2002-12-18
DE19957910A1 (de) 2001-06-13
CZ20004449A3 (cs) 2001-09-12

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