EP0979693B1 - Verfahren zur Herstellung eines Dichtkanals für eine Tür- oder Heckklappenöffnung - Google Patents
Verfahren zur Herstellung eines Dichtkanals für eine Tür- oder Heckklappenöffnung Download PDFInfo
- 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
Links
Images
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)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
- Seal Device For Vehicle (AREA)
- Gasket Seals (AREA)
- Body Structure For Vehicles (AREA)
Description
- Fig.
- 1 eine durch einen Walzvorgang umgeformte Metallplatine nach dem erfindungsgemäßen Verfahren zur Herstellung des fertigen Dichtkanals in einer schematischen Darstellung von oben und
- Fig. 2
- einen fertigen Dichtkanal in einer schematischen perspektivischen Darstellung.
Claims (7)
- Verfahren zur Herstellung eines Karosseriebauteils an Kraftfahrzeugen in form eines Dichtkanals (1) für eine Tür- oder Heckklappenöffnung aus einer Metallplatine durch Umformung, wobei die ungeformte Metallplatine zunächst eine konstante Materialdicke aufweist, nachfolgend infolge Walzung mindestens zwei Bereiche (2, 3) unterschiedlicher Materialdicke existieren und schließlich die die Bereiche (2, 3) unterschiedlich ausgebildeter Materialdicke aufweisende Metallplatine (1a) durch weitere Umformung, wie Tiefziehen, zum fertigen Karosseriebauteil in Form des Dichtkanals (1) umgeformt wird,
dadurch gekennzeichnet, daß
durch eine Auswahl der Ausgangsfestigkeit und der Ausgangsdicke der ungeformten Metallplatine sowie durch eine Auswahl der Enddicke der umgeformten Metallplatine (1a) die Festigkeit der fertig gewalzten Metallplatine (1a) so eingestellt wird, daß die nach dem Walzvorgang verbleibenden Umformreserven noch die Umformung zum fertigen Dichtkanal (1) mit einer belastungsgerechten Dimensionierung ermöglichen. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, daß
der Dichtkanal (1) aus einer noch ungeformten Metallplatine von 1,25 mm Dicke hergestellt und der Walzvorgang ohne eine Zwischenglühung zur Rekristallisation in der Weise realisiert wird, daß die nach dem Walzvorgang verbleibenden Umformreserven noch die Umformung zum fertigen Dichtkanal (1) ermöglichen. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, daß
der Dichtkanal (1) aus einer noch ungeformten Metallplatine von 1,5 mm Dicke hergestellt und unter Berücksichtigung des entsprechenden Umformgrades zur Erzielung der erforderlichen Umformreserven ein sich an den Walzvorgang anschließendes Rekristallisationsglühen realisiert wird. - Verfahren nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß
die ungeformte Metallplatine durch einen variabel einstellbaren Walzspalt geführt wird, so daß ein flexibles Walzen ermöglicht ist. - Verfahren nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß
die ungeformte Metallplatine mit Hilfe einer in verschiedenen Bereichen unterschiedliche Außendurchmesser aufweisenden Walze so umgeformt wird, daß innerhalb der Metallplatine (1a) die Bereiche (2, 3) unterschiedlicher Materialdicke entstehen. - Verfahren nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, daß
zwischen den Bereichen (2, 3) unterschiedlicher Materialdicke der Metallplatine (1a) ein stetig ansteigender bzw. stetig abfallender Übergangsbereich (4) ausgebildet wird, so daß stufenweise Dicken- bzw. Steifigkeitssprünge vermieden werden. - Verfahren nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, daß
die Metallplatine (1a) derart ausgewalzt wird, daß nach dem Walzvorgang eine Gesamtbreite (b) von 500 mm und eine Gesamtlänge (l) von 800 mm aufweist, wobei die Metallplatine (1a) einen ersten Bereich (2) mit einer Dicke von 1,25 mm, einer Breite (b2) von 500 mm und einer Länge (l2) von 300 mm, einen zweiten Bereich (3) mit einer Dicke von 1,05 mm, einer Breite (b3) von 500 mm und einer Länge (l3) von 460 mm, sowie einen zwischen dem ersten und dem zweiten Bereich (2, 3) vorgesehenen Übergangsbereich (4) mit einer Breite (b4) von 500 mm und einer Länge (l4) von 40 mm aufweist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19835998A DE19835998A1 (de) | 1998-08-08 | 1998-08-08 | Dichtkanal für eine Tür- oder Heckklappenöffnung bzw. Verfahren zu dessen Herstellung |
DE19835998 | 1998-08-08 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0979693A2 EP0979693A2 (de) | 2000-02-16 |
EP0979693A3 EP0979693A3 (de) | 2001-03-28 |
EP0979693B1 true EP0979693B1 (de) | 2003-12-10 |
Family
ID=7876948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99114293A Expired - Lifetime EP0979693B1 (de) | 1998-08-08 | 1999-07-29 | Verfahren zur Herstellung eines Dichtkanals für eine Tür- oder Heckklappenöffnung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0979693B1 (de) |
AT (1) | ATE255972T1 (de) |
DE (2) | DE19835998A1 (de) |
Families Citing this family (6)
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)
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 |
-
1998
- 1998-08-08 DE DE19835998A patent/DE19835998A1/de not_active Withdrawn
-
1999
- 1999-07-29 DE DE59907997T patent/DE59907997D1/de not_active Expired - Lifetime
- 1999-07-29 EP EP99114293A patent/EP0979693B1/de not_active Expired - Lifetime
- 1999-07-29 AT AT99114293T patent/ATE255972T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0979693A2 (de) | 2000-02-16 |
ATE255972T1 (de) | 2003-12-15 |
DE59907997D1 (de) | 2004-01-22 |
DE19835998A1 (de) | 2000-02-10 |
EP0979693A3 (de) | 2001-03-28 |
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