EP0881007A1 - Method for the production of metal profiles - Google Patents
Method for the production of metal profiles Download PDFInfo
- Publication number
- EP0881007A1 EP0881007A1 EP97810321A EP97810321A EP0881007A1 EP 0881007 A1 EP0881007 A1 EP 0881007A1 EP 97810321 A EP97810321 A EP 97810321A EP 97810321 A EP97810321 A EP 97810321A EP 0881007 A1 EP0881007 A1 EP 0881007A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- profile
- starting material
- strips
- cross
- different
- 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- Withdrawn
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Classifications
-
- 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
- B21C37/08—Making tubes with welded or soldered seams
- B21C37/083—Supply, or operations combined with supply, of strip material
-
- 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
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/06—Making sheets
-
- 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
- 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
- B21C37/08—Making tubes with welded or soldered seams
- B21C37/0803—Making tubes with welded or soldered seams the tubes having a special shape, e.g. polygonal tubes
-
- 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
- B21C37/15—Making tubes of special shape; Making tube fittings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
- B21B1/0805—Flat bars, i.e. having a substantially rectangular cross-section
Definitions
- the invention relates to a method for producing Metal profiles.
- the present invention is therefore based on the object to create a process that is easy to manufacture of metal profiles with different cross sections mechanical properties.
- the object is achieved in that a Starting material with different over the cross section Material properties formed into a profile by roll forming becomes.
- the invention is based on the idea that those desired on the profile different cross-sectional dimensions and / or different material-specific properties already in a simple to produce starting material to provide and the simple and inexpensive for the profile design Use roll forming technology. In this way tubes and other profiles can be manufactured not only have a different cross-sectional thickness, but across the cross-section also from different ones Materials are built up.
- the starting material preferably consists of at least two Sheet or profile strips welded together on the long side with different material properties or - dimensions. If only different thicknesses are desired on the profile, so two or more sheet metal or profile strips different thicknesses welded together along the sides be.
- the method according to the invention is particularly suitable for the production of aluminum profiles, i.e. the tin or Profile strips are made from an aluminum alloy.
- Suitable alloys are, for example, alloys from the series AA5xxx (AlMg), AA6xxx (AlMgSi) or AA7xxx (AlZnMg, AlZnMgCu).
- the individual sheet or profile strips can not only have different thickness, but also from different Materials exist. This makes it possible to produce so-called intelligent profiles, their thickness and material-specific properties depending on the desired Stiffness, strength or from design Reasons to use where it depends on the design or is required by design.
- the starting material can, for example, be welded to one another laterally Roll strips exist. That on this Pre-made starting material is especially for continuous production of profiles suitable, whereby for Manufacture of pipes and other profiles with closed Cross-section of the roll-formed metal profiles continuously be welded into a hollow profile. Suitable for this Welding processes are, for example, laser radio frequency or electron beam welding.
- extruded profile strips can also be used or profiles with a preformed cross section be welded together laterally.
- a starting material 10 shown in FIG. 1 has one central strip 12 with a thickness d of, for example, 2 mm and 12 side strips projecting laterally from the central strip 14, 16 of a smaller thickness e, for example 1 mm on.
- the raw material 10 becomes cross-sectional in the roll forming process curved so that the longitudinal edges 18, 20 of the two side strips 14, 16 each other to form a cross-section approach closed profile.
- the starting material 10 bent into a tube and the two longitudinal edges 18, 20 over a longitudinal weld 22 to form a tube 24 connected with each other.
- the tube 24 has a thickness d of central strip 12 corresponding thickening 26, the remaining cross section of the tube 24 corresponds to the small Thickness e of the side strips 14, 16.
- the profile 27 shown in Fig. 3 with also closed Cross section can be done in the same way as the pipe 2 by roll forming from the starting material 10 produce.
- the starting material 10 can be made of an aluminum alloy, for example be extruded.
- Another source material 10 which is particularly for continuous manufacturing of roll-formed profiles, for example from rolled strips that are welded to each other laterally are.
- a first rolled strip would central strips 12 correspond to the thickness d.
- On the side this first rolled strip would be a further rolled strip with the Dimensions of the two side strips 14, 16 welded.
- the variant of a starting material 30 shown in FIG. 4 has a first stepped profile 32, on the side a strip profile 34 is welded on.
- the tiered profile 32 consists, for example, of an alloy of the AlMgMn type with high elongation, the strip profile 34 for example a high-strength alloy of the type AlZnMg.
- the main one Deformation of the starting material 30 by roll forming takes place according to the better formability of a AlMgMn alloy compared to an alloy of the type AlZnMg am Flat profile 32.
- the made from the high-strength alloy Strip profile 34 leads to a on the roll-formed profile Area with high strength.
- the method according to the invention is not limited to that in FIG Drawing illustrated embodiments of starting materials limited. Basically, the starting materials from any number of different rolled strips Thick or with extruded profiles any cross-section.
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Herstellung von Metallprofilen.The invention relates to a method for producing Metal profiles.
Zur kontinuierlichen Herstellung von Rohren ist es bekannt, dem gewünschten Rohrdurchmesser entsprechend zugeschnittene Blechstreifen durch Rollformen zu einer geschlossenen Querschittsform zu biegen und die Stossstellen über eine Längsschweissnaht miteinander zu verbinden. Bei einer anderen bekannten Herstellungsart werden die Rohre direkt als Hohlprofile durch Strangpressen gefertigt.For the continuous production of pipes, it is known cut according to the desired pipe diameter Sheet strips by roll forming to a closed one Bend cross-sectional shape and the joints over a To join the longitudinal weld seam. Another one known type of manufacture, the tubes are directly as Hollow profiles made by extrusion.
Für den Einsatz im Leichtbauwesen oder als Strukturteile im Automobilbau sind Rohre und andere Profile mit querschnittlich unterschiedlicher Dicke gewünscht. Diese Anforderung kann mit dem erstgenannten Herstellungsverfahren durch Rollformen von Blechen nicht erfüllt werden.For use in lightweight construction or as structural parts in Automotive engineering are pipes and other profiles with cross-section different thickness desired. This requirement can by using the first-mentioned manufacturing process Roll forms of sheets are not fulfilled.
Durch Strangpressen können zwar Rohre und andere Profile mit unterschiedlicher Wandstärke grundsätzlich hergestellt werden, jedoch sind die Variationsmöglichkeiten aus presstechnischen Gründen sowie durch materialspezifische Eigenschaften begrenzt.By extrusion pipes and other profiles can be different wall thicknesses manufactured in principle are, however, the possible variations from press technology Reasons as well as material-specific properties limited.
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren zu schaffen, das auf einfache Weise die Herstellung von Metallprofilen mit querschnittlich unterschiedlichen mechanischen Eigenschaften ermöglicht.The present invention is therefore based on the object to create a process that is easy to manufacture of metal profiles with different cross sections mechanical properties.
Erfindungsgemäss wird die Aufgabe dadurch gelöst, dass ein Ausgangsmaterial mit über den Querschnitt unterschiedlichen Materialeigenschaften durch Rollformen zum Profil geformt wird.According to the invention the object is achieved in that a Starting material with different over the cross section Material properties formed into a profile by roll forming becomes.
Der Erfindung liegt der Gedanke zugrunde, die am Profil gewünschten unterschiedlichen Querschnittsdimensionen und/oder unterschiedlichen materialspezifischen Eigenschaften in einem einfach herzustellenden Ausgangsmaterial bereits vorzusehen und zur Profilgestaltung die einfache und kostengünstige Rollformtechnologie einzusetzen. Auf diese Weise können Rohre und andere Profile hergestellt werden, die nicht nur eine querschnittlich unterschiedliche Dicke aufweisen, sondern über dem Querschnitt auch aus unterschiedlichen Werkstoffen aufgebaut sind.The invention is based on the idea that those desired on the profile different cross-sectional dimensions and / or different material-specific properties already in a simple to produce starting material to provide and the simple and inexpensive for the profile design Use roll forming technology. In this way tubes and other profiles can be manufactured not only have a different cross-sectional thickness, but across the cross-section also from different ones Materials are built up.
Das Ausgangsmaterial besteht bevorzugt aus mindestens zwei längsseitig aneinandergeschweissten Blech- oder Profilstreifen mit unterschiedlichen Materialeigenschaften oder - dimensionen. Sind am Profil nur unterschiedliche Dicken gewünscht, so können zwei oder mehr Blech- bzw. Profilstreifen unterschiedlicher Dicke längsseitig aneinandergeschweisst sein.The starting material preferably consists of at least two Sheet or profile strips welded together on the long side with different material properties or - dimensions. If only different thicknesses are desired on the profile, so two or more sheet metal or profile strips different thicknesses welded together along the sides be.
Das erfindungsgemässe Verfahren ist insbesondere geeignet zur Herstellung von Aluminiumprofilen, d.h. die Blech- oder Profilstreifen werden aus einer Aluminiumlegierung gefertigt. Geeignete Legierungen sind beispielsweise Legierungen aus der Reihe AA5xxx (AlMg), AA6xxx (AlMgSi) oder AA7xxx (AlZnMg,AlZnMgCu).The method according to the invention is particularly suitable for the production of aluminum profiles, i.e. the tin or Profile strips are made from an aluminum alloy. Suitable alloys are, for example, alloys from the series AA5xxx (AlMg), AA6xxx (AlMgSi) or AA7xxx (AlZnMg, AlZnMgCu).
Die einzelnen Blech- oder Profilstreifen können nicht nur unterschiedliche Dicke aufweisen, sondern auch aus unterschiedlichen Werkstoffen bestehen. Dadurch wird es möglich, sogenannte intelligente Profile herzustellen, deren Dicke und materialspezifischen Eigenschaften je nach gewünschter Steifigkeit, Festigkeit oder auch aus gestaltungstechnischen Gründen dort einzusetzen, wo es von der Konstruktion oder vom Design her verlangt wird.The individual sheet or profile strips can not only have different thickness, but also from different Materials exist. This makes it possible to produce so-called intelligent profiles, their thickness and material-specific properties depending on the desired Stiffness, strength or from design Reasons to use where it depends on the design or is required by design.
Das Ausgangsmaterial kann beispielsweise aus seitlich aneinandergeschweissten Walzbändern bestehen. Das auf diese Weise vorgefertigte Ausgangsmaterial ist insbesondere zur kontinuierlichen Fertigung von Profilen geeignet, wobei zur Herstellung von Rohren und anderen Profilen mit geschlossenem Querschnitt die rollgeformten Metallprofile kontinuierlich zu einem Hohlprofil verschweisst werden. Hierfür geeignete Schweissverfahren sind beispielsweise Laser-Hochfrequenz oder Elektronenstrahlschweissen.The starting material can, for example, be welded to one another laterally Roll strips exist. That on this Pre-made starting material is especially for continuous production of profiles suitable, whereby for Manufacture of pipes and other profiles with closed Cross-section of the roll-formed metal profiles continuously be welded into a hollow profile. Suitable for this Welding processes are, for example, laser radio frequency or electron beam welding.
Anstelle von Walzbändern können auch stranggepresste Profilstreifen oder Profile mit bereits vorgeformtem Querschnitt seitlich aneinandergeschweisst werden.Instead of rolled strips, extruded profile strips can also be used or profiles with a preformed cross section be welded together laterally.
Für Anwendungen, die nur eine querschnittlich unterschiedliche Materialdicke erfordern, kann als Ausgangsmaterial ein stranggepresstes Profil aus beispielsweise Aluminiumlegierung mit unterschiedlicher Dicke verwendet werden. Im einfachsten Fall handelt es sich um ein im wesentlichen flaches Profil mit keilförmigem oder gestuftem Querschnitt zur Bereitstellung der unterschiedlichen Wandstärken am rollgeformten Profil. Für gewisse Querschnittsformen kann es auch vorteilhaft sein, das Profil bereits beim Strangpressen der Endform anzunähern, so weit dies presstechnisch möglich ist. Die Herstellung eines querschnttlich geschlossenen Profils erfolgt auch hier durch Zusammenschweissen der durch Rollformen einander angenäherten Profillängskanten.For applications that only have a different cross section Material thickness may require as a starting material an extruded profile made of aluminum alloy, for example with different thickness can be used. in the The simplest case is an essentially flat one Profile with wedge-shaped or stepped cross section Provision of different wall thicknesses on roll-formed Profile. It can also for certain cross-sectional shapes be advantageous, the profile already during extrusion Approach the final shape as far as this is technically possible. The production of a cross-sectionally closed profile takes place here also by welding together by roll forms mutually approximated longitudinal profile edges.
Der Vollständigkeit halber sei hier noch angemerkt, dass die rollgeformten und gegebenenfalls zur Bildung eines geschlossenen Querschnitts verschweissten Profile entsprechend ihrem Einsatzzweck weiteren Biegeoperationen oder beispielsweise einem Hydroforming unterworfen werden können.For the sake of completeness, it should be noted here that the roll-formed and possibly to form a closed Cross-sectional welded profiles accordingly their intended use further bending operations or for example, can be subjected to hydroforming.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnung; diese zeigt schematisch in
- - Fig. 1
- den Querschnitt durch ein Ausgangsmaterial;
- - Fig. 2
- den Querschnitt durch ein aus dem Ausgangsmaterial von Fig. 1 durch Rollformen hergestelltes Rohr;
- - Fig. 3
- den Querschnitt durch ein anderes aus dem Ausgangsmaterial von Fig. 1 durch Rollformen hergestelltes querschnittlich geschlossenes Profil;
- - Fig. 4
- den Querschnitt durch ein aus unterschiedlichen Werkstoffen aufgebautes Ausgangsmaterial.
- - Fig. 1
- the cross section through a starting material;
- - Fig. 2
- the cross section through a tube made from the starting material of Figure 1 by roll forming;
- - Fig. 3
- the cross section through another cross-sectionally closed profile made from the starting material of Figure 1 by roll forming;
- - Fig. 4
- the cross section through a starting material made of different materials.
Ein in Fig. 1 dargestelltes Ausgangsmaterial 10 weist einen
zentralen Streifen 12 einer Dicke d von beispielsweise 2 mm
sowie seitlich vom zentralen Streifen 12 abragende Seitenstreifen
14, 16 einer geringeren Dicke e von beispielsweise 1
mm auf. Durch einen in der Zeichnung nicht dargestellten
Rollformvorgang wird das Ausgangsmaterial 10 querschnittlich
so gekrümmt, dass die Längskanten 18, 20 der beiden Seitenstreifen
14, 16 einander unter Bildung eines querschnittlich
geschlossenen Profils annähern.A
Bei dem in Fig. 2 gezeigten Beispiel wurde das Ausgangsmaterial
10 rohrförmig gebogen und die beiden Längskanten 18, 20
über eine Längsschweissnaht 22 unter Bildung eines Rohres 24
miteinander verbunden. Das Rohr 24 weist eine der Dicke d des
zentralen Streifens 12 entsprechende Verdickung 26 auf, der
übrige Querschnitt des Rohres 24 entspricht der geringen
Dicke e der Seitenstreifen 14, 16.In the example shown in Fig. 2, the
Das in Fig. 3 dargestellte Profil 27 mit ebenfalls geschlossenem
Querschnitt lässt sich auf gleiche Weise wie das Rohr
gemäss Fig. 2 durch Rollformen aus dem Ausgangsmaterial 10
herstellen.The
Das Ausgangsmaterial 10 kann beispielsweise aus einer Aluminiumlegierung
stranggepresst sein. Ein anderes Ausgangsmaterial
10, das sich insbesondere zur kontinuierlichen Fertigung
von rollgeformten Profilen eignet, besteht beispielsweise
aus Walzbändern, die seitlich aneinander geschweisst
sind. Im vorliegenden Beispiel würde ein erstes Walzband dem
zentralen Streifen 12 der Dicke d entsprechen. Seitlich an
diesem ersten Walzband wäre je ein weiteres Walzband mit den
Dimensionen der beiden Seitenstreifen 14, 16 angeschweisst.The starting
Die in Fig. 4 gezeigte Variante eines Ausgangsmaterials 30
weist ein erstes gestuftes Profil 32 auf, an welches seitlich
ein Streifenprofil 34 angeschweisst ist. Das gestufte Profil
32 besteht beispielsweise aus einer Legierung vom Typ AlMgMn
mit hoher Dehnung, das Streifenprofil 34 beispielsweise aus
einer hochfesten Legierung vom Typ AlZnMg. Die hauptsächliche
Verformung des Ausgangsmaterials 30 durch Rollformen
erfolgt entsprechend der besseren Umformbarkeit einer
AlMgMn-Legierung gegenüber einer Legierung vom Typ AlZnMg am
Flachprofil 32. Das aus der hochfesten Legierung gefertigte
Streifenprofil 34 führt am rollgeformten Profil zu einem
Bereich mit entsprechend hoher Festigkeit.The variant of a starting
Das erfindungsgemässe Verfahren ist nicht auf die in der Zeichnung dargestellten Ausführungsbeispiele von Ausgangsmaterialien beschränkt. Grundsätzlich können die Ausgangsmaterialien aus einer beliebigen Anzahl von Walzbändern unterschiedlicher Dicke oder auch aus Strangpressprofilen mit beliebigem Querschnitt zusammengesetzt sein.The method according to the invention is not limited to that in FIG Drawing illustrated embodiments of starting materials limited. Basically, the starting materials from any number of different rolled strips Thick or with extruded profiles any cross-section.
Neben den erwähnten Aluminiumlegierungen können auch andere Werkstoffe wie beispielsweise Magnesium, Kupfer oder auch Stahl als Ausgangsmaterialien eingesetzt werden.In addition to the aluminum alloys mentioned, others can Materials such as magnesium, copper or Steel can be used as starting materials.
Claims (9)
dadurch gekennzeichnet, dass
ein Ausgangsmaterial (10,30) mit über den Querschnitt sich verändernden Materialeigenschaften durch Rollformen zum Profil (24,27) geformt wird.Process for the production of metal profiles,
characterized in that
a starting material (10, 30) with material properties that change over the cross section is formed into the profile (24, 27) by roll forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP97810321A EP0881007A1 (en) | 1997-05-26 | 1997-05-26 | Method for the production of metal profiles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP97810321A EP0881007A1 (en) | 1997-05-26 | 1997-05-26 | Method for the production of metal profiles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0881007A1 true EP0881007A1 (en) | 1998-12-02 |
Family
ID=8230238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97810321A Withdrawn EP0881007A1 (en) | 1997-05-26 | 1997-05-26 | Method for the production of metal profiles |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP0881007A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1323624A1 (en) * | 2001-12-27 | 2003-07-02 | Faurecia Interieur Industrie | Structural unit for a dashboard and method for its production |
| EP1640250A3 (en) * | 2004-09-22 | 2006-05-31 | Benteler Automobiltechnik GmbH | Hollow element for a vehicle component |
| CN112170695A (en) * | 2019-07-02 | 2021-01-05 | 大众汽车股份公司 | Method for producing a frame and/or a housing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE944162C (en) * | 1944-07-09 | 1956-06-07 | Huettenwerk Oberhausen Ag | Process for the production of metal rods and tubes of any profile |
| DE1452646A1 (en) * | 1963-12-23 | 1969-03-27 | Ford Motor Co | Process for the production of components, in particular load-bearing components |
| US3683471A (en) * | 1969-03-27 | 1972-08-15 | Jerome H Lemelson | Continuous manufacturing processes and apparatus |
| DE3343709A1 (en) * | 1982-12-16 | 1984-06-20 | Nissan Motor Co., Ltd., Yokohama, Kanagawa | Process for shaping a frame part |
| JPS62220214A (en) * | 1986-03-20 | 1987-09-28 | Kawasaki Steel Corp | Thickness deviated steel tube |
| EP0604745A1 (en) * | 1992-12-30 | 1994-07-06 | FIAT AUTO S.p.A. | A tubular structure for the construction of motor-vehicle frames |
| DE4333500A1 (en) * | 1993-10-01 | 1995-04-06 | Daimler Benz Ag | Use of a preferably closed, extruded profile, as well as a hollow profile, as well as a method for producing a sheet with different wall thicknesses |
| JPH0890124A (en) * | 1994-09-16 | 1996-04-09 | Tanaka Kikinzoku Kogyo Kk | Production of pipe for ornamentation |
-
1997
- 1997-05-26 EP EP97810321A patent/EP0881007A1/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE944162C (en) * | 1944-07-09 | 1956-06-07 | Huettenwerk Oberhausen Ag | Process for the production of metal rods and tubes of any profile |
| DE1452646A1 (en) * | 1963-12-23 | 1969-03-27 | Ford Motor Co | Process for the production of components, in particular load-bearing components |
| US3683471A (en) * | 1969-03-27 | 1972-08-15 | Jerome H Lemelson | Continuous manufacturing processes and apparatus |
| DE3343709A1 (en) * | 1982-12-16 | 1984-06-20 | Nissan Motor Co., Ltd., Yokohama, Kanagawa | Process for shaping a frame part |
| JPS62220214A (en) * | 1986-03-20 | 1987-09-28 | Kawasaki Steel Corp | Thickness deviated steel tube |
| EP0604745A1 (en) * | 1992-12-30 | 1994-07-06 | FIAT AUTO S.p.A. | A tubular structure for the construction of motor-vehicle frames |
| DE4333500A1 (en) * | 1993-10-01 | 1995-04-06 | Daimler Benz Ag | Use of a preferably closed, extruded profile, as well as a hollow profile, as well as a method for producing a sheet with different wall thicknesses |
| JPH0890124A (en) * | 1994-09-16 | 1996-04-09 | Tanaka Kikinzoku Kogyo Kk | Production of pipe for ornamentation |
Non-Patent Citations (2)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 012, no. 078 (M - 675) 11 March 1988 (1988-03-11) * |
| PATENT ABSTRACTS OF JAPAN vol. 096, no. 008 30 August 1996 (1996-08-30) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1323624A1 (en) * | 2001-12-27 | 2003-07-02 | Faurecia Interieur Industrie | Structural unit for a dashboard and method for its production |
| FR2834271A1 (en) * | 2001-12-27 | 2003-07-04 | Sai Automotive Allibert Ind | DASHBOARD STRUCTURAL ASSEMBLY AND METHOD FOR MAKING SAME |
| EP1640250A3 (en) * | 2004-09-22 | 2006-05-31 | Benteler Automobiltechnik GmbH | Hollow element for a vehicle component |
| CN112170695A (en) * | 2019-07-02 | 2021-01-05 | 大众汽车股份公司 | Method for producing a frame and/or a housing |
| DE102019209706A1 (en) * | 2019-07-02 | 2021-01-07 | Volkswagen Aktiengesellschaft | Method for producing a frame and / or a housing |
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