DE4231213A1 - Process for producing a shaped body produced by pressing or deep drawing - Google Patents
Process for producing a shaped body produced by pressing or deep drawingInfo
- Publication number
- DE4231213A1 DE4231213A1 DE19924231213 DE4231213A DE4231213A1 DE 4231213 A1 DE4231213 A1 DE 4231213A1 DE 19924231213 DE19924231213 DE 19924231213 DE 4231213 A DE4231213 A DE 4231213A DE 4231213 A1 DE4231213 A1 DE 4231213A1
- Authority
- DE
- Germany
- Prior art keywords
- sheet metal
- thickness
- formed body
- metal part
- pressing
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000003825 pressing Methods 0.000 title claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 19
- 238000005096 rolling process Methods 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 1
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
- B21D22/20—Deep-drawing
- B21D22/26—Deep-drawing for making peculiarly, e.g. irregularly, shaped articles
-
- 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
-
- 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
- B21D53/84—Making other particular articles other parts for engines, e.g. connecting-rods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
- B21H7/007—Taper rolling, e.g. leaf springs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Metal Rolling (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft ein Verfahren zum Herstellen eines durch Pressen oder Tiefziehen gefertigten Formkörpers mit unterschiedlichen Wandstärken aus einem zunächst ebenen Blech teil.The present invention relates to a method for manufacturing a molded body produced by pressing or deep drawing different wall thicknesses from an initially flat sheet part.
Aus Blech hergestellte Formkörper sind je nach Anwendungsfall in verschiedenen Bereichen unterschiedlich starken Belastungen unterworfen. Aus diesem Grunde ist es bekannt, derartige Form körper mit unterschiedlichen Wandstärken zu versehen, um auf diese Weise einerseits den zu erwartenden Belastungen gerecht zu werden und andererseits entsprechend Material einzusparen.Shaped bodies made of sheet metal are depending on the application different levels of stress in different areas subject. For this reason it is known to form such body with different wall thicknesses in order to this way, on the one hand, to meet the expected loads to become and on the other hand to save material accordingly.
Bislang hat man derartige Formkörper entweder aus einzelnen, schon verformten Blechteilen unterschiedlicher Wandstärke zu sammengeschweißt oder unterschiedlich dicke Blechteile zunächst zusammengeschweißt und dann insgesamt entsprechend verformt.So far, such shaped bodies have either been made up of individual already deformed sheet metal parts of different wall thickness welded together or sheet metal parts of different thickness initially welded together and then deformed accordingly.
In beiden Fällen ist es also erforderlich, Schweißarbeiten aus zuführen.So in both cases it is necessary to carry out welding work respectively.
Abgesehen von den dadurch verursachten zusätzlichen Kosten ist eine Schweißnaht immer eine potentielle Schwachstelle.Aside from the additional cost involved a weld seam is always a potential weak point.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Ver fahren der gattungsgemäßen Art zu schaffen, nach dem ein Formkörper in material- und gewichtssparender Bauweise unter Vermeidung jedweder Schweißarbeiten herstellbar ist.The present invention has for its object a Ver drive of the generic type to create after the Shaped body in material and weight-saving design under Avoidance of any welding work can be produced.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß ein ein stückiges Blechteil mit einer der größten Wandstärke des zu fertigenden Formkörpers entsprechenden Dicke verwendet und vor dem Pressen oder Tiefziehen ausschließlich in denjenigen Bereichen, in denen der Formkörper eine geringere Wandstärke aufweisen soll, durch Auswalzen oder entsprechende andere Streckverfahren auf die gewünschte geringere Dicke reduziert wird.This object is achieved in that a piece sheet metal part with one of the greatest wall thickness of the manufacturing molding used corresponding thickness and before pressing or deep drawing only in those Areas in which the molded body has a smaller wall thickness should have, by rolling or other appropriate Stretching process reduced to the desired smaller thickness becomes.
Ein nach diesem Verfahren hergestellter Formkörper zeichnet sich dadurch aus, daß die Eigenschaften des Ausgangsmaterials in keiner Weise beeinträchtigt werden und daß zusätzliche, auf wendige Schweißarbeiten und Nachbearbeitungen der Schweißnähte vermieden werden.A molded article produced by this process is drawn is characterized by the fact that the properties of the starting material not be affected in any way and that additional, on agile welding and reworking of the weld seams be avoided.
Es ist ohne weiteres möglich, die Reduzierung auf eine geringere Dicke stufig vorzunehmen oder stufenlos durchzu führen.It is easily possible to reduce it to one to make smaller thicknesses in stages or continuously to lead.
Durch die Dickenreduzierung des einstückigen Blechteiles vor seiner Verformung wird eine entsprechende Materialeinsparung bei der Herstellung eines Formkörpers erzielt, einhergehend mit einer entsprechenden Gewichtsreduzierung.By reducing the thickness of the one-piece sheet metal part its deformation will result in a corresponding saving in material achieved in the manufacture of a molded article, along with a corresponding weight reduction.
Der natürliche Faserverlauf des einstückigen Blechteiles wird in keiner Weise unterbrochen, worin ein Vorteil gegenüber ver schweißten Bauteilen zu sehen ist. The natural grain of the one-piece sheet metal part becomes in no way interrupted, which is an advantage over ver welded components can be seen.
Anhand der beigefügten Zeichnungen wird das erfindungsgemäße Verfahren im folgenden noch einmal ausführlich erläutert.Based on the accompanying drawings, the invention The procedure is explained in detail below.
Es zeigen:Show it:
Fig. 1 eine perspektivische Darstellung eines Formkörpers, Fig. 1 is a perspective view of a shaped body,
Fig. 2 eine Seitenansicht des Formkörpers gemäß Fig. 1, teilweise im Schnitt dargestellt, Fig. 2 is a side view of the molding shown in Fig. 1, partially shown in section,
Fig. 3 eine Draufsicht auf den Formkörper nach den Fig. 1 und 2, Fig. 3 is a plan view of the molded body according to FIGS. 1 and 2,
Fig. 4 die in Fig. 2 mit IV bezeichnete Einzel heit in vergrößerter Darstellung, FIG. 4, denoted in Fig. 2 with IV detail in enlarged scale;
Fig. 5 bis 7 schematische Darstellungen zur Verdeut lichung verschiedener Möglichkeiten einer Dickenreduzierung des Ausgangsmateriales zur Herstellung eines Formkörpers. Fig. 5 to 7 are schematic diagrams for Verdeut lichung various possibilities of a reduction in thickness of the starting material for the production of a molding.
In den Fig. 1 bis 3 ist als Beispiel für einen Formkörper im Sinne der vorliegenden Erfindung ein Träger 1 dargestellt, der aus einem zunächst ebenen Blechteil durch Pressen oder Tief ziehen gefertigt worden ist. In Figs. 1 to 3, a carrier 1 is shown as an example of a shaped body according to the present invention which has been made move from one of initially flat sheet metal part by pressing or deep.
Dieser Träger 1 weist in seinem mittleren Bereich 1a eine größere Wandstärke auf als in seinen beiden äußeren Bereichen 1b. Dies zeigt die Einzelheit gemäß Fig. 4 besonders an schaulich.This carrier 1 has a larger wall thickness in its central region 1 a than in its two outer regions 1 b. This shows the detail according to FIG. 4 particularly clearly.
Der Träger 1 ist aus einem einstückigen Blechteil hergestellt, dessen Dicke der größten Wandstärke des mittleren Bereiches 1a des Trägers 1 entspricht. Vor dem Pressen oder Tiefziehen dieses Ausgangsmateriales ist das Blechteil in den späteren Bereichen 1b des Trägers durch Auswalzen oder entsprechende Streckverfahren auf die gewünschte geringere Dicke reduziert worden.The carrier 1 is made from a one-piece sheet metal part, the thickness of which corresponds to the greatest wall thickness of the central region 1 a of the carrier 1 . Before pressing or deep-drawing this starting material, the sheet metal part in the later areas 1 b of the carrier has been reduced to the desired smaller thickness by rolling or corresponding stretching processes.
Die Fig. 5 bis 7 zeigen in schematischer Darstellung, welche Möglichkeiten der Dickenreduzierung beim Auswalzen gegeben sind. Figs. 5 to 7 show in a schematic representation, the possibilities are given to the reduction in thickness during rolling.
Fig. 5 veranschaulicht, daß das Blechteil, welches im allge meinen auch als Platine bezeichnet wird und in den Fig. 5 bis 7 mit dem Bezugszeichen 2 versehen ist, von seinen Enden ausgehend bis auf eine bestimmte Länge in einen Walzenstuhl 3 eingeschoben werden kann, wobei anschließend entweder eine Walzrichtungsumkehr oder ein Öffnen des Walzenstuhles erfolgt. Fig. 5 illustrates that the sheet metal part, which is generally referred to as a board and is provided with the reference number 2 in Figs. 5 to 7, can be inserted from its ends up to a certain length into a roller mill 3 , whereby either a reversal of the rolling direction or an opening of the roller mill takes place.
Fig. 6 zeigt, daß die bereichsweise Dickenreduzierung einer Platine 2 auch dadurch erfolgen kann, daß die Platine 2 insgesamt durch den Walzenstuhl 3 hindurchgeschoben wird, wobei der Walzenabstand verändert werden kann. Fig. 6 shows that the reduction in thickness of a blank 2 can also take place in that the blank 2 is pushed as a whole through the roller mill 3 , it being possible to change the roller spacing.
Hierdurch ist es auch möglich, eine kontinuierliche Dickenre duzierung vorzunehmen. This also makes it possible to have a continuous thickness reduction.
Wie aus Fig. 7 hervorgeht, kann eine Platine auch durch einen Walzenstuhl 3 mit Profilwalzen 4 geschoben werden, um eine bereichsweise Reduzierung der Ausgangsdicke zu erzielen.As can be seen from FIG. 7, a blank can also be pushed through a roller mill 3 with profile rollers 4 in order to achieve a reduction in the initial thickness in some areas.
Die Dickenreduzierung kann, wie aus den Fig. 5 bis 7 hervor geht, an der vorgefertigten Platine 2 erfolgen, bei einfachen Bauteilen besteht auch die Möglichkeit, daß eine Blechdicken reduzierung nach dem Schema der Fig. 6 und 7 am abge wickelten Coil erfolgen kann, wobei dann anschließend eine Trennung der Platinen vom Coil erfolgt.The thickness reduction can, as can be seen from FIGS. 5 to 7, take place on the prefabricated circuit board 2 ; in the case of simple components there is also the possibility that a reduction in sheet thickness according to the diagram of FIGS . 6 and 7 can take place on the unwound coil, the boards then being separated from the coil.
Claims (4)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19924231213 DE4231213C2 (en) | 1992-09-18 | 1992-09-18 | Method for producing a carrier-like shaped body |
| EP93921780A EP0621812A1 (en) | 1992-09-18 | 1993-09-17 | Process for manufacturing a formed body made by pressing or deep-drawing |
| PCT/DE1993/000883 WO1994006581A2 (en) | 1992-09-18 | 1993-09-17 | Process for manufacturing a formed body made by pressing or deep-drawing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19924231213 DE4231213C2 (en) | 1992-09-18 | 1992-09-18 | Method for producing a carrier-like shaped body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE4231213A1 true DE4231213A1 (en) | 1994-03-24 |
| DE4231213C2 DE4231213C2 (en) | 1997-04-03 |
Family
ID=6468227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19924231213 Expired - Lifetime DE4231213C2 (en) | 1992-09-18 | 1992-09-18 | Method for producing a carrier-like shaped body |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0621812A1 (en) |
| DE (1) | DE4231213C2 (en) |
| WO (1) | WO1994006581A2 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0760265A1 (en) | 1995-08-26 | 1997-03-05 | Benteler Ag | Tube and its application in the manufacturing of components of vehicle axles and vehicle axle with such a tube |
| DE19604357A1 (en) * | 1996-02-07 | 1997-08-14 | Benteler Werke Ag | Process for the production of pipes with sections of different wall thickness |
| DE19704300A1 (en) * | 1997-02-06 | 1998-08-20 | Benteler Werke Ag | Procedure for manufacture of metal sheet blanks with different thicknesses |
| EP0979693A3 (en) * | 1998-08-08 | 2001-03-28 | Volkswagen Aktiengesellschaft | Pillar for a door or hatch opening and its method of production |
| DE10048312A1 (en) * | 2000-09-29 | 2002-04-25 | Benteler Werke Ag | Flow turning device for steel sheet billets, esp. tailored blanks has forming chamber with forming rollers adjustable between fixed stop and elastic support |
| DE10063040A1 (en) * | 2000-12-18 | 2002-06-27 | Benteler Automobiltechnik Gmbh | Manufacturing panels with regions of varying thickness involves displacing region transversely from one side by thrust shaping, removing excess material from opposite side |
| DE10145241A1 (en) * | 2001-09-13 | 2003-04-10 | Benteler Automobiltechnik Gmbh | Process for the production of sheet metal products varying in thickness |
| FR2850304A1 (en) * | 2003-01-28 | 2004-07-30 | Benteler Automobiltechnik Gmbh | METHOD AND DEVICE FOR MANUFACTURING A VARIANT BLANK IN THICKNESS AT LEAST IN ONE AREA |
| EP1547716A1 (en) * | 2003-12-25 | 2005-06-29 | HONDA MOTOR CO., Ltd. | Mounting bracket |
| WO2011054575A1 (en) | 2009-11-06 | 2011-05-12 | Voestalpine Automotive Gmbh | Process for producing components having regions of differing ductility |
| DE102015118099A1 (en) * | 2015-10-23 | 2017-04-27 | Benteler Automobiltechnik Gmbh | Method for producing a motor vehicle component |
| DE102004053258B4 (en) | 2004-11-04 | 2020-07-09 | Volkswagen Ag | Side members for a vehicle body |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10103487A1 (en) * | 2001-01-26 | 2002-08-01 | Volkswagen Ag | Carbody panel forming from constant or stepped section involves forming large area panel shape divided into varied section areas bounded and smoothed over by rolled joins. |
| US10695814B2 (en) | 2014-03-04 | 2020-06-30 | Nippon Steel Corporation | Method for manufacturing press-formed product, device for manufacturing press-formed product, mandrel, and press-formed product |
| DE102014017654A1 (en) * | 2014-12-01 | 2016-06-02 | Ebert-Consulting Gmbh | Vehicle chassis and method for producing a profile elongated carrier for such a vehicle chassis |
| WO2019069631A1 (en) * | 2017-10-04 | 2019-04-11 | 新日鐵住金株式会社 | Torsion beam manufacturing method and torsion beam manufacturing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE59052C (en) * | M. MANNESMANN in Remscheid-Bliedinghausen | Process and rolling mill for forming and calibrating rod-shaped bodies and plates with a pilgrim-like movement of the workpiece | ||
| US1998970A (en) * | 1931-08-31 | 1935-04-23 | Republic Steel Corp | Die rolled article and die rolling method |
| DE2245650B2 (en) * | 1971-09-18 | 1979-01-11 | Nippon Steel Corp., Tokio | Method of manufacturing stepped sheet metal |
| DE3343709A1 (en) * | 1982-12-16 | 1984-06-20 | Nissan Motor Co., Ltd., Yokohama, Kanagawa | Process for shaping a frame part |
| EP0279866B1 (en) * | 1986-12-22 | 1992-03-11 | Thyssen Stahl Aktiengesellschaft | Manufacturing method for a shaped body of sheet metal pieces with different thicknesses |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR486940A (en) * | 1917-09-26 | 1918-05-16 | Detroit Pressed Steel Co | Manufacturing process for stamped or stamped sheet metal articles |
| FR1054724A (en) * | 1952-04-21 | 1954-02-12 | Manufacturing process of measuring vessels for liquids | |
| US3499305A (en) * | 1967-05-02 | 1970-03-10 | Prp Corp | Rolling mill and method of rolling strips |
| DE1937288A1 (en) * | 1969-07-23 | 1971-02-11 | Maschf Augsburg Nuernberg Ag | Axle bridge for commercial vehicles |
| JPS57168731A (en) * | 1981-04-09 | 1982-10-18 | Hitachi Zosen Corp | Monolithic forming of double sink |
| JPS6061106A (en) * | 1983-09-16 | 1985-04-08 | Kawasaki Steel Corp | Rolling method of steel sheet with different thickness |
-
1992
- 1992-09-18 DE DE19924231213 patent/DE4231213C2/en not_active Expired - Lifetime
-
1993
- 1993-09-17 EP EP93921780A patent/EP0621812A1/en not_active Withdrawn
- 1993-09-17 WO PCT/DE1993/000883 patent/WO1994006581A2/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE59052C (en) * | M. MANNESMANN in Remscheid-Bliedinghausen | Process and rolling mill for forming and calibrating rod-shaped bodies and plates with a pilgrim-like movement of the workpiece | ||
| US1998970A (en) * | 1931-08-31 | 1935-04-23 | Republic Steel Corp | Die rolled article and die rolling method |
| DE2245650B2 (en) * | 1971-09-18 | 1979-01-11 | Nippon Steel Corp., Tokio | Method of manufacturing stepped sheet metal |
| DE3343709A1 (en) * | 1982-12-16 | 1984-06-20 | Nissan Motor Co., Ltd., Yokohama, Kanagawa | Process for shaping a frame part |
| EP0279866B1 (en) * | 1986-12-22 | 1992-03-11 | Thyssen Stahl Aktiengesellschaft | Manufacturing method for a shaped body of sheet metal pieces with different thicknesses |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0760265A1 (en) | 1995-08-26 | 1997-03-05 | Benteler Ag | Tube and its application in the manufacturing of components of vehicle axles and vehicle axle with such a tube |
| DE19604357B4 (en) * | 1996-02-07 | 2004-06-24 | Benteler Ag | Process for the production of pipes with sections of different wall thickness |
| DE19604357A1 (en) * | 1996-02-07 | 1997-08-14 | Benteler Werke Ag | Process for the production of pipes with sections of different wall thickness |
| DE19704300A1 (en) * | 1997-02-06 | 1998-08-20 | Benteler Werke Ag | Procedure for manufacture of metal sheet blanks with different thicknesses |
| DE19704300B4 (en) * | 1997-02-06 | 2008-07-10 | Benteler Ag | Method for producing boards with different thicknesses |
| EP0979693A3 (en) * | 1998-08-08 | 2001-03-28 | Volkswagen Aktiengesellschaft | Pillar for a door or hatch opening and its method of production |
| DE10048312A1 (en) * | 2000-09-29 | 2002-04-25 | Benteler Werke Ag | Flow turning device for steel sheet billets, esp. tailored blanks has forming chamber with forming rollers adjustable between fixed stop and elastic support |
| DE10048312B4 (en) * | 2000-09-29 | 2004-07-29 | Benteler Ag | ironing apparatus |
| DE10063040C2 (en) * | 2000-12-18 | 2002-10-24 | Benteler Automobiltechnik Gmbh | Process for the production of boards which vary in thickness in some areas |
| WO2003051573A1 (en) * | 2000-12-18 | 2003-06-26 | Benteler Automobiltechnik Gmbh & Co. Kg | Method for the production of plates with regional thickness variations |
| EP1321219A1 (en) * | 2000-12-18 | 2003-06-25 | Benteler Automobiltechnik GmbH & Co. KG | Method of manufacturing plates with locally varying thickness |
| DE10063040A1 (en) * | 2000-12-18 | 2002-06-27 | Benteler Automobiltechnik Gmbh | Manufacturing panels with regions of varying thickness involves displacing region transversely from one side by thrust shaping, removing excess material from opposite side |
| DE10145241C2 (en) * | 2001-09-13 | 2003-07-17 | Benteler Automobiltechnik Gmbh | Process for the production of sheet metal products varying in thickness |
| DE10145241A1 (en) * | 2001-09-13 | 2003-04-10 | Benteler Automobiltechnik Gmbh | Process for the production of sheet metal products varying in thickness |
| US7082808B2 (en) | 2003-01-28 | 2006-08-01 | Benteler Automobil Technik Gmbh | Making plate workpiece with regions of different thickness |
| FR2850304A1 (en) * | 2003-01-28 | 2004-07-30 | Benteler Automobiltechnik Gmbh | METHOD AND DEVICE FOR MANUFACTURING A VARIANT BLANK IN THICKNESS AT LEAST IN ONE AREA |
| EP1547716A1 (en) * | 2003-12-25 | 2005-06-29 | HONDA MOTOR CO., Ltd. | Mounting bracket |
| US7198131B2 (en) | 2003-12-25 | 2007-04-03 | Honda Motor Co., Ltd. | Mounting bracket |
| DE102004053258B4 (en) | 2004-11-04 | 2020-07-09 | Volkswagen Ag | Side members for a vehicle body |
| WO2011054575A1 (en) | 2009-11-06 | 2011-05-12 | Voestalpine Automotive Gmbh | Process for producing components having regions of differing ductility |
| DE102009052210A1 (en) | 2009-11-06 | 2011-07-28 | Voestalpine Automotive Gmbh | Method for producing components with regions of different ductility |
| DE102009052210B4 (en) * | 2009-11-06 | 2012-08-16 | Voestalpine Automotive Gmbh | Method for producing components with regions of different ductility |
| DE102015118099A1 (en) * | 2015-10-23 | 2017-04-27 | Benteler Automobiltechnik Gmbh | Method for producing a motor vehicle component |
| US10486221B2 (en) | 2015-10-23 | 2019-11-26 | Benteler Automobiltechnik Gmbh | Method for producing a motor vehicle component |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4231213C2 (en) | 1997-04-03 |
| WO1994006581A2 (en) | 1994-03-31 |
| EP0621812A1 (en) | 1994-11-02 |
| WO1994006581A3 (en) | 1994-07-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8363 | Opposition against the patent | ||
| 8330 | Complete disclaimer |