EP0979693B1 - Méthode de production d' un montant d' une ouverture de porte ou de porte arrière - Google Patents

Méthode de production d' un montant d' une ouverture de porte ou de porte arrière Download PDF

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Publication number
EP0979693B1
EP0979693B1 EP99114293A EP99114293A EP0979693B1 EP 0979693 B1 EP0979693 B1 EP 0979693B1 EP 99114293 A EP99114293 A EP 99114293A EP 99114293 A EP99114293 A EP 99114293A EP 0979693 B1 EP0979693 B1 EP 0979693B1
Authority
EP
European Patent Office
Prior art keywords
metal blank
thickness
sealing channel
rolling process
regions
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.)
Expired - Lifetime
Application number
EP99114293A
Other languages
German (de)
English (en)
Other versions
EP0979693A3 (fr
EP0979693A2 (fr
Inventor
Conrad Dipl.-Ing. Oehlerking
Frank Dr. Welsch
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.)
Volkswagen AG
Original Assignee
Volkswagen 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 Volkswagen AG filed Critical Volkswagen AG
Publication of EP0979693A2 publication Critical patent/EP0979693A2/fr
Publication of EP0979693A3 publication Critical patent/EP0979693A3/fr
Application granted granted Critical
Publication of EP0979693B1 publication Critical patent/EP0979693B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B21D53/00—Making other particular articles
    • B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/24—Automatic variation of thickness according to a predetermined programme
    • B21B37/26—Automatic variation of thickness according to a predetermined programme for obtaining one strip having successive lengths of different constant thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/065—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes starting from a specific blank, e.g. tailored blank
    • 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

Definitions

  • the invention relates to a method for producing a body component Motor vehicles in the form of a sealing channel for a door or tailgate opening, wherein the sealing channel is made from a metal plate by forming.
  • the body component in Form of the above-mentioned sealing channel is produced in a relatively complex manner. Since the formation of a sealing channel - depending on whether the sealing channel on a Door opening or at a tailgate opening in the body of a motor vehicle can be arranged, may be different, but especially because on a suitably designed sealing channel in different areas different loads can act, the sealing channel must not only one have certain shape, but in certain areas also with a according to the existing material thickness, i.e. Wall thickness to be formed to withstand corresponding loads. The on a sealing channel acting forces or the existing load conditions are from depending on various factors.
  • this includes the closing forces of the doors or tailgates, but also the formation of the rubber seals or their elasticity, Shape and firmness.
  • sealing channels become particularly sudden occurring pressure forces - as an acting force - are loaded accordingly, in particular then, when the users of a motor vehicle after getting out or unloading the "Throw" the door or the tailgate of the motor vehicle.
  • sealing channel works here called sealing channel as a kind of "rain gutter” and is intended to perform this function accordingly guarantee.
  • This is basically the entire body, including the sealing channel with regard to strength, rigidity and elasticity dimension so that the corresponding when using the motor vehicle Requirements can be met.
  • the "tailored blank technique”, the "patchwork technique” or the “perforation technique” applied.
  • the corresponding components are used metal sheets of different thickness "assembled", the individual sheets with the help welded accordingly.
  • sheets become larger Thickness used in areas where higher stress conditions occur and sheets with Thinner thickness used in areas where lower stress conditions occur.
  • the "patchwork technique” is used to "thicken" areas with higher stress levels, by laying sheets on top of each other and then connecting them together.
  • the task is in connection with the features in the preamble of claim 1 solved in that by a selection of the initial strength and the initial thickness of the unshaped metal plate and a selection of the Final thickness of the formed metal plate the strength of the finished rolled Metal plate is set so that the remaining after the rolling process Forming reserves still the forming to the finished sealing channel with a Enable load-oriented dimensioning.
  • the sealing channel produced in particular by this method has according to In the present exemplary embodiment, consequently, two formed by a rolling process Areas of different material thickness, namely a first area with a larger and a second area with a smaller material thickness, where - especially due to the last forming process to manufacture the finished one Sealing channel - with a force acting on the sealing channel in the first area greater load state exists than in the second area. Consequently, the sealing channel according to the invention the corresponding weight savings due to Training in the relevant areas and, finally, this is also the case dimensioned that he the different load conditions in these areas accordingly withstands or here the required rigidity, strength and / or Has elasticity.
  • the Sealing channel 1 from an unshaped metal plate or from that shown in Fig. 1 already partially formed metal plate 1a by at least one Forming process made.
  • the unshaped metal plate initially has a constant material thickness that the Metal plate is then first formed by a rolling process so that at least two areas 2 and 3 of different material thickness exist and that finally the areas 2 and 3 differently formed material thickness metal plate 1a by another Forming to the finished sealing channel 1 is formed.
  • sealing channel 1 shows the already partially formed metal plate 1a, which is already one Rolling process has been subjected.
  • two areas are here 2 and 3 of different material thickness, namely a first region 2 with a larger and a second area 3 with a smaller material thickness, with a force acting on the sealing channel 1 - a larger one in the first region 2 Load condition exists as in the second area 3.
  • sealing channel 1 according to the invention can save a corresponding amount of weight on the Vehicle body as well as in a very cost-effective manner dimensioned sealing channel 1 are produced.
  • the still unshaped metal plate is passed through a variably adjustable roll gap, so that flexible rolling is possible.
  • metal boards 1a are different Sheet thickness can be produced by using an unshaped metal plate with the appropriate Rolling device which has a correspondingly variably adjustable roll gap, is rolled thinner in some areas.
  • One advantage of the rolling process is, for example, that on the one hand there is no abrupt thickness or Stiffness jump occurs because of the transition between the material thicknesses or sheet thicknesses takes place continuously in the form of a ramp and that on the other hand due to the flexibility of the Process also very small thickness gradations, especially not normally available thicknesses are possible. So one comes to the theoretical sheet thickness requirements much closer and avoids the disadvantages of welds in the Metal boards, for example as in the "tailored blank technique".
  • Fig. 1 So it can be seen in Fig. 1 that between the areas 2 and 3 different Material thickness of the metal plate 1a is a continuously increasing or decreasing Transition area 4 is formed so that gradual thickness or Stiffness jumps can be avoided.
  • the selection of the Initial strength and the initial thickness of the unshaped metal board as well the selection of the final thickness of the formed metal plate 1a the strength of the finished rolled metal plate 1a can be adjusted so that for this Sealing channel 1 made of metal plate 1a has a load-appropriate dimensioning is achieved that is optimized. It may even be possible to use an appropriately thick, roll down the unshaped metal plate to make it slightly pre-solidified
  • the sealing channel 1 in the preferred embodiment is made of a still unshaped metal plate 1.25 mm thick and the rolling process
  • the metal plate 1a now shows the metal plate 1a formed by the rolling process, which has an overall width b of 500 mm and an overall length I of 800 mm.
  • the metal plate 1a has a first area 2 with a thickness of 1.25 mm, a width b 2 of 500 mm and a length l 2 of 300 mm.
  • the second region 3, which can be clearly seen here, has a thickness of 1.05 mm, a width b 3 of 500 mm and a length l 3 of 460 mm. It can be clearly seen that the first area 2 and the second area 3 are "separated" by the transition area 4 provided here, which has a width b 4 of 500 mm and a length l 4 of 40 mm.
  • the weight of the sealing channel 1 can be reduced by approximately 120 g, so that a weight saving of approximately 20% is possible.
  • first and second areas 2 and 3 rising or falling transition area 4 are formed. Still is through a specific design or dimensioning of the first and second region 2 and 3 as well as the transition area 4 a - with an acting force - resulting uniform load state realized.
  • the metal boards 1a shown here in FIG. 1 can be stored very well, namely possibly re-rollable on a coil and at an appropriate manufacturing site used. A stacking of the metal plates 1a also appears possible before these become the corresponding sealing channel 1 can be processed further.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Gasket Seals (AREA)
  • Body Structure For Vehicles (AREA)
  • Seal Device For Vehicle (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)

Claims (7)

  1. Procédé de fabrication d'un composant de carrosserie de véhicules automobiles, en forme de conduit d'étanchéité (1) pour une ouverture de portière ou de coffre, se composant d'une plaque métallique, par formage, la plaque métallique formée présentant initialement une épaisseur de matériau constante, puis, suite à un laminage, aux moins deux régions (2, 3) d'épaisseur de matériau différente étant produites et finalement la plaque métallique (1a) présentant les régions (2, 3) d'épaisseur de matériau réalisé différemment est formée par un formage ultérieur, comme par exemple par emboutissage profond, pour donner le composant de carrosserie en forme de conduit d'étanchéité (1),
    caractérisé en ce que
    par un choix de la résistance initiale et de l'épaisseur initiale de la plaque métallique formée, ainsi que par un choix de l'épaisseur finale de la plaque métallique formée (1a), on peut ajuster la résistance de la plaque métallique laminée finie (1a) de telle sorte que les réserves de formage subsistant après l'opération de laminage permettent encore le formage pour donner le conduit d'étanchéité fini (1) avec un dimensionnement approprié aux sollicitations.
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    le conduit d'étanchéité (1) est fabriqué à partir d'une plaque métallique encore non formée de 1,25 mm d'épaisseur et l'opération de laminage est réalisée sans recuit intermédiaire pour la recristallisation, de telle manière que les réserves de formage subsistant après l'opération de laminage permettent encore de former le conduit d'étanchéité fini (1).
  3. Procédé selon la revendication 1,
    caractérisé en ce que
    le conduit d'étanchéité (1) est fabriqué à partir d'une plaque métallique encore non formée de 1,5 mm d'épaisseur, et en tenant compte du degré de formage correspondant pour obtenir les réserves de formage nécessaires, on réalise un recuit de recristallisation suivant l'opération de laminage.
  4. Procédé selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que
    la plaque métallique formée est guidée à travers une emprise ajustable de manière variable de sorte qu'un laminage flexible soit possible.
  5. Procédé selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que
    la plaque métallique formée est formée à l'aide d'un cylindre présentant différents diamètres extérieurs dans différentes régions, de telle sorte qu'à l'intérieur de la plaque métallique (la), l'on obtienne des régions (2, 3) d'épaisseur de matériau différente.
  6. Procédé selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce qu'une région de transition (4) augmentant régulièrement ou diminuant régulièrement est réalisée entre les régions (2, 3) d'épaisseur de matériau différente de la plaque métallique (la), de sorte que l'on évite des sauts de rigidité ou d'épaisseur par échelons.
  7. Procédé selon l'une quelconque des revendications 1 à 6,
    caractérisé en ce que
    la plaque métallique (1a) est laminée de telle sorte qu'après l'opération de laminage, elle présente une largeur totale (b) de 500 mm et une longueur totale (l) de 800 mm, la plaque métallique (1a) présentant une première région (2) ayant une épaisseur de 1,25 mm, une largeur (b2) de 500 mm et une longueur (l2) de 300 mm, une deuxième région (3) ayant une épaisseur de 1,05 mm, une largeur (b3) de 500 mm et une longueur (l3) de 460 mm, ainsi qu'une région de transition (4) prévue entre la première et la deuxième région (2, 3), ayant une largeur (b4) de 500 mm et une longueur (l4) de 40 mm.
EP99114293A 1998-08-08 1999-07-29 Méthode de production d' un montant d' une ouverture de porte ou de porte arrière Expired - Lifetime EP0979693B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19835998 1998-08-08
DE19835998A DE19835998A1 (de) 1998-08-08 1998-08-08 Dichtkanal für eine Tür- oder Heckklappenöffnung bzw. Verfahren zu dessen Herstellung

Publications (3)

Publication Number Publication Date
EP0979693A2 EP0979693A2 (fr) 2000-02-16
EP0979693A3 EP0979693A3 (fr) 2001-03-28
EP0979693B1 true EP0979693B1 (fr) 2003-12-10

Family

ID=7876948

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99114293A Expired - Lifetime EP0979693B1 (fr) 1998-08-08 1999-07-29 Méthode de production d' un montant d' une ouverture de porte ou de porte arrière

Country Status (3)

Country Link
EP (1) EP0979693B1 (fr)
AT (1) ATE255972T1 (fr)
DE (2) DE19835998A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10103487A1 (de) * 2001-01-26 2002-08-01 Volkswagen Ag Verfahren zur Herstellung eines großflächigen Gebildes an Kraftfahrzeugen und großflächiges Gebilde dazu
DE102004037206A1 (de) * 2004-07-30 2006-03-23 Muhr Und Bender Kg Fahrzeugkarosserie
FR2945971B1 (fr) * 2009-05-27 2011-05-13 Peugeot Citroen Automobiles Sa Procede d'emboutissage d'un element en tole, notamment de la caisse d'un vehicule automobile
DE102011007937B4 (de) * 2011-01-03 2015-09-10 Benteler Automobiltechnik Gmbh Verfahren zum Herstellen eines Strukturbauteils einer Kraftfahrzeugkarosserie
DE102016109264A1 (de) * 2016-05-20 2017-11-23 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Seitliche Heckklappenabstützung für ein Kraftfahrzeug
PL3470145T3 (pl) * 2017-10-10 2022-06-20 Outokumpu Oyj Sposób częściowego odkształcania stali na zimno o jednorodnej grubości

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59109466A (ja) * 1982-12-16 1984-06-25 Nissan Motor Co Ltd 主として曲げ荷重を受ける部位に用いられる自動車用メンバの製造方法
JPS61165233A (ja) * 1985-01-16 1986-07-25 Nissan Motor Co Ltd 車両用開閉体の製造方法
DE4231213C2 (de) * 1992-09-18 1997-04-03 Benteler Werke Ag Verfahren zum Herstellen eines trägerartigen Formkörpers
DE29508175U1 (de) * 1995-05-12 1995-08-03 Benteler Ag, 33104 Paderborn Schalenartiger Tragkörper
DE19604357B4 (de) * 1996-02-07 2004-06-24 Benteler Ag Verfahren zur Herstellung von Rohren mit Abschnitten unterschiedlicher Wanddicke
DE19640568C2 (de) * 1996-10-01 2000-05-11 Benteler Werke Ag Verfahren zur Herstellung von rohrförmigen Seitenaufprallträgern

Also Published As

Publication number Publication date
DE59907997D1 (de) 2004-01-22
DE19835998A1 (de) 2000-02-10
EP0979693A3 (fr) 2001-03-28
ATE255972T1 (de) 2003-12-15
EP0979693A2 (fr) 2000-02-16

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