DE102004035887A1 - Sheet metal plate for manufacturing motor vehicle body, has two sheet metals with different thickness, where thicker sheet metal`s edge area is rolled, so that thickness of thicker metal in edge area is reduced to thickness of thinner metal - Google Patents
Sheet metal plate for manufacturing motor vehicle body, has two sheet metals with different thickness, where thicker sheet metal`s edge area is rolled, so that thickness of thicker metal in edge area is reduced to thickness of thinner metal Download PDFInfo
- Publication number
- DE102004035887A1 DE102004035887A1 DE102004035887A DE102004035887A DE102004035887A1 DE 102004035887 A1 DE102004035887 A1 DE 102004035887A1 DE 102004035887 A DE102004035887 A DE 102004035887A DE 102004035887 A DE102004035887 A DE 102004035887A DE 102004035887 A1 DE102004035887 A1 DE 102004035887A1
- Authority
- DE
- Germany
- Prior art keywords
- sheet
- thickness
- thicker
- sheet metal
- metal
- 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- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
- B62D27/023—Assembly of structural joints
-
- 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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
- B23K26/26—Seam welding of rectilinear seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
- B23K33/004—Filling of continuous seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/18—Sheet panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
Abstract
Description
Die Erfindung betrifft eine Blechplatine („Tailored Blank") als Halbzeug zur Herstellung eines Bauteils im Kraftfahrzeugbau, sowie ein Verfahren zu ihrer Herstellung.The The invention relates to a sheet metal blank ("tailored blank") as a semifinished product for Production of a component in motor vehicle construction, and a method for their production.
Viele Bauteile, insbesondere Karosseriebauteile in Kraftfahrzeugen, sind in einzelnen Teilbereichen unterschiedlich stark belastet. Um den lokalen Anforderungen in bezug auf Steifigkeit, Festigkeit etc. nachzukommen und gleichzeitig ein möglichst geringes Bauteilgewicht zu erreichen, ist es bekannt, als Halbzeuge für die Herstellung solcher Bauteile sogenannte „Tailored Blanks" einzusetzen. Dies sind Platinen, die aus mehreren Einzelblechen unterschiedlicher Materialstärke und/oder unterschiedlicher Werkstoffbeschaffenheit bestehen. Zur Herstellung der Tailored Blanks werden die Einzelbleche im Stumpfstoß zueinander positioniert und durch ein Schweißverfahren, beispielsweise durch Laserschweißen, miteinander verbunden. Diese Tailored Blanks dienen dann als Platinen, aus denen mit Hilfe bekannter Umformverfahren, insbesondere mit Hilfe des Tiefziehens, die gewünschten Bauteile geformt werden.Lots Components, in particular body components in motor vehicles, are differently loaded in individual sub-areas. To the local requirements in terms of stiffness, strength, etc. comply and at the same time the lowest possible component weight It is known, as semi-finished products for the manufacture of such components, to use so-called "tailored Blanks "use. These are boards that are made up of several individual sheets of different material thickness and / or different material properties. to Production of tailored blanks, the individual sheets are in butt joint to each other positioned and by a welding process, for example by laser welding, connected with each other. These tailored blanks then serve as sinkers, from those using known forming process, in particular with Help of thermoforming, the desired Components are molded.
Werden die Tailored Blanks aus Einzelblechen unterschiedlicher Materialstärke hergestellt, so liegt im Bereich der Verbindungsnaht ein Stufensprung vor. Dieser Stufensprung des Tailored Blanks kann nachteilige Effekte auf das Bauteil haben, das aus diesem Tailored Blank hergestellt werden soll; beispielsweise können – je nach Lage des Stufensprungs – Dichtprobleme auftreten, oder der Stufensprung kann sich auf einem mit dem Bauteil verbundenen Außenbauteil abzeichnen. Zur Vermeidung dieser unerwünschten Effekte wird in der WO 96/19306 vorgeschlagen, in dem zur Herstellung des Bauteils verwendeten Umformwerkzeug Formeinsätze vorzusehen, die während des Umformvorgangs eine Glättung des Stufensprungs bewirken. Diese Formeinsätze haben also zur Folge, dass der Übergang von dem einen auf das andere, in der Dicke erheblich unterschiedlich bemessene Blech in einer sanften Kurve verläuft.Become the tailored blanks are made of single sheets of different material thickness, So there is a step change in the area of the connection seam. This Gradual jump of the tailored blanks can have adverse effects on the Have component that are made from this tailored blank should; for example - depending on Position of the increment - sealing problems Occur or the increment may be on one with the component connected external component emerge. To avoid these undesirable effects is in the WO 96/19306 proposed in which used for the production of the component Forming tool mold inserts to provide during the the forming process, a smoothing effect the increment. These mold inserts have the consequence that the transition from one to the other, considerably different in thickness measured sheet metal runs in a gentle curve.
Allerdings bedeutet die Gestaltung und Dimensionierung der Formeinsätze einen Zusatzaufwand und ist daher aufwendig und teuer. Weiterhin müssen die Formeinsätze für jede Bauteiländerung Bauteile neu ausgelegt und berechnet werden.Indeed means the design and dimensioning of the mold inserts one Extra effort and is therefore complicated and expensive. Furthermore, the mold inserts for every Component change components be redesigned and calculated.
Der Erfindung liegt daher die Aufgabe zugrunde, das Tailored Blank als Halbzeug zur Herstellung eines Kraftfahrzeug-Bauteils in einer solchen Weise zu gestalten, dass dieses Tailored Blank in einem herkömmlichen Ziehwerkzeug – also ohne Formeinsätze – zu einem qualitativ hochwertigen Bauteil umgeformt werden kann. Weiterhin liegt der Erfindung die Aufgabe zugrunde, ein Verfahren zur Herstellung eines solchen Tailored Blanks bereitzustellen.Of the Invention is therefore based on the object, the tailored blank as To make semi-finished products for the production of a motor vehicle component in such a way that this tailored blank in a conventional drawing tool - ie without mold inserts - to a high-quality component can be reshaped. Farther the invention has the object, a method for producing to provide such a tailored blanks.
Die Aufgabe wird erfindungsgemäß durch die Merkmale der Ansprüche 1, 2, 5 und 6 gelöst.The The object is achieved by the Features of the claims 1, 2, 5 and 6 solved.
Die Erfindung beruht auf dem Gedanken, die Dicken der Bleche, aus denen das Tailored Blank zusammengesetzt ist, bereits vor dem Zusammenfügen der Einzelbleche lokal aneinander anzupassen und den Stufensprung, der bei einem Tailored Blank aufgrund der unterschiedlichen Dicke der Einzelbleche auftritt, nicht – wie in der WO 96/19306 vorgeschlagen – erst im Zuge der Umformung des Tailored Blanks zu glätten. Die Erfindung sieht vor, eines (oder beide) der im Tailored Blank aneinander bordenden Bleche vor dem gegenseitigen Fügen mit Hilfe eines Walzverfahrens in seiner Dicke zu reduzieren, um ein Angleichung der Blechdicken im gegenseitigen Fügebereich zu erreichen. Die Verwendung eines Walzverfahrens hat den Vorteil, dass die lokale Dickenreduktion des betreffenden Blechs kostengünstig in einem Durchlaufverfahren durchgeführt werden kann. Insbesondere kann diese Dickenreduktion bereits im Walzwerk erfolgen, indem ein Coil, aus dem später die Bleche zugeschnitten werden, mit einem (oder mehreren) in Coilrichtung verlaufenden bandförmigen Abschnitten lokal auf eine geringere Materialstärke gewalzt wird.The Invention is based on the idea of the thicknesses of the sheets from which the tailored blank is already assembled before joining the Individual sheets locally adapt to each other and the increment, the in a tailored blank due to the different thickness of the Single sheets occurs, not - like proposed in WO 96/19306 - only in the course of forming to smooth out the tailored blanks. The invention provides one (or both) of the in the tailored blank abutting plates before mutual joining with Help reduce a rolling process in its thickness, to achieve an approximation to achieve the sheet thicknesses in the mutual joining area. The Using a rolling process has the advantage that the local Thickness reduction of the relevant sheet cost in a continuous process carried out can be. In particular, this thickness reduction already in the rolling mill done by a coil, from which the sheets are cut later be, with one (or more) extending in the coil direction band-shaped sections rolled locally to a lower material thickness.
In einer ersten bevorzugten Ausführungsform ist das dickere Blech in einem Randbereich auf die Materialstärke des dünneren Blechs gewalzt. Im gegenseitigen Fügebereich haben somit die beiden Bleche die Materialstärke des dünneren Blechs. – In einer zweiten bevorzugten Ausführungsform entspricht das dünnere Blech einem (ursprünglich) dicken Blech, das in randfernen Bereichen auf eine niedrigere Blechdicke gewalzt worden ist. Zur Herstellung des Tailored Blank wird dieses (dünnere) Blech in seinem (dicken) Randbereich mit einem dicken Blech verbunden, so dass die beiden Bleche im gegenseitigen Fügebereich die Materialstärke des dickeren Blechs haben. – Daneben sind unterschiedliche Mischformen der vorgewalzten Bleche möglich, wie z.B. zwei dickere Bleche, die beide im gegenseitigen Fügebereich auf eine geringere Blechstärke reduziert sind. Die Blechstärken der Einzelbleche können durch Walzen in einer solchen Weise lokal reduziert werden, dass sie auf die lokalen Festigkeitsanforderungen des Bauteils angepasst sind. Durch Zusammenfügen von Einzelblechen unterschiedlicher Werkstoffbeschaffenheit und unterschiedlicher (lokaler) Blechdicke kann so ein Tailored Blank erzeugt werden, das optimal auf den jeweiligen Anwendungsfall zugeschnitten ist und dessen Materialstärke über das gesamte Tailored Blank hinweg stetig (also ohne Dickesprünge) variiert.In a first preferred embodiment, the thicker sheet is rolled in an edge region to the thickness of the thinner sheet metal. In the mutual joint area thus the two sheets have the material thickness of the thinner sheet. - In a second preferred embodiment, the thinner sheet corresponds to a (originally) thick sheet, which has been rolled in areas remote from the edge to a lower sheet thickness. For the manufacture of the tailored blank, this (thinner) sheet metal in its (thick) edge area is connected to a thick sheet metal, so that the two sheets in the mutual joint area have the material thickness of the thicker sheet metal. - In addition, different mixed forms of pre-rolled sheets are possible, such as two thicker sheets, both of which are reduced in the mutual joining area to a smaller plate thickness. The sheet thicknesses of the individual sheets can be locally reduced by rolling in such a way that they are adapted to the local strength requirements of the component. By joining individual sheets of different material properties and different (local) sheet thickness, a tailored blank can be produced that optimally suits the respective application case is cut and whose material thickness over the entire Tailored Blank away constantly (ie without thickness jumps) varies.
Vorteilhafterweise sind die Einzelbleche in einer solchen Weise zusammengefügt, dass die Oberseiten der Einzelbleche in einer Nachbarschaft des Randbereichs in einer gemeinsamen Ebene liegen. Diese Oberseiten bilden dann die „Sichtseite" des fertigen, aus dem Tailored Blank gefertigten Bauteils, denn sie sind bereits vor dem Umformen flach und brauchen daher während des Umformens des Tailored Blanks nicht geglättet zu werden.advantageously, the individual sheets are joined together in such a way that the tops of the individual sheets in a neighborhood of the edge area lie in a common plane. These tops then make up the "visible side" of the finished, off the tailored blank, because they are already available flat and therefore need during the forming of the Tailored Blanks not smoothed to become.
Im folgenden wird die Erfindung anhand zweier in den Zeichnungen dargestellter Ausführungsbeispiele näher erläutert. Dabei zeigen:in the Following, the invention will be illustrated with reference to two in the drawings embodiments explained in more detail. there demonstrate:
Die
Einzelbleche
Zur
Herstellung der Blechplatine
Anschließend werden
die beiden Bleche
Das
Walzen des dickeren Blechs
Neben
den Ausführungsbeispielen
der
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004035887A DE102004035887A1 (en) | 2004-07-23 | 2004-07-23 | Sheet metal plate for manufacturing motor vehicle body, has two sheet metals with different thickness, where thicker sheet metal`s edge area is rolled, so that thickness of thicker metal in edge area is reduced to thickness of thinner metal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004035887A DE102004035887A1 (en) | 2004-07-23 | 2004-07-23 | Sheet metal plate for manufacturing motor vehicle body, has two sheet metals with different thickness, where thicker sheet metal`s edge area is rolled, so that thickness of thicker metal in edge area is reduced to thickness of thinner metal |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004035887A1 true DE102004035887A1 (en) | 2006-03-16 |
Family
ID=35853231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102004035887A Withdrawn DE102004035887A1 (en) | 2004-07-23 | 2004-07-23 | Sheet metal plate for manufacturing motor vehicle body, has two sheet metals with different thickness, where thicker sheet metal`s edge area is rolled, so that thickness of thicker metal in edge area is reduced to thickness of thinner metal |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102004035887A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007017661A1 (en) * | 2007-04-12 | 2008-10-16 | J. Eberspächer GmbH & Co. KG | Deep-drawn sheet metal component in shell construction |
CN101844185A (en) * | 2009-03-23 | 2010-09-29 | 蒂森克虏伯钢铁欧洲股份公司 | Metal slabs with thickness transition part |
US20140062136A1 (en) * | 2012-09-06 | 2014-03-06 | GM Global Technology Operations LLC | Laser welded structural fender inner blank for mass optimization |
WO2018171961A1 (en) * | 2017-03-23 | 2018-09-27 | Bayerische Motoren Werke Aktiengesellschaft | Method for producing a workpiece composite, and workpiece composite |
WO2021034930A1 (en) * | 2019-08-19 | 2021-02-25 | Worthington Industries, Inc. | Pre-weld modification technique for a custom welded blank |
-
2004
- 2004-07-23 DE DE102004035887A patent/DE102004035887A1/en not_active Withdrawn
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007017661A1 (en) * | 2007-04-12 | 2008-10-16 | J. Eberspächer GmbH & Co. KG | Deep-drawn sheet metal component in shell construction |
CN101844185A (en) * | 2009-03-23 | 2010-09-29 | 蒂森克虏伯钢铁欧洲股份公司 | Metal slabs with thickness transition part |
DE102009003655A1 (en) | 2009-03-23 | 2010-09-30 | Thyssenkrupp Steel Europe Ag | Sheet metal plate with homogeneous thickness transition |
DE102009003655B4 (en) * | 2009-03-23 | 2012-01-19 | Thyssenkrupp Steel Europe Ag | A method for producing a sheet metal blank, as well as a sheet metal blank and the forming tool for producing a sheet with a thickness transition at a connecting edge |
CN101844185B (en) * | 2009-03-23 | 2014-04-09 | 蒂森克虏伯钢铁欧洲股份公司 | Sheet metal blank having thickness transition part |
US9908166B2 (en) | 2009-03-23 | 2018-03-06 | Thyssenkrupp Steel Europe Ag | Sheet metal blank having a homogeneous thickness transition |
US20140062136A1 (en) * | 2012-09-06 | 2014-03-06 | GM Global Technology Operations LLC | Laser welded structural fender inner blank for mass optimization |
WO2018171961A1 (en) * | 2017-03-23 | 2018-09-27 | Bayerische Motoren Werke Aktiengesellschaft | Method for producing a workpiece composite, and workpiece composite |
CN110114186A (en) * | 2017-03-23 | 2019-08-09 | 宝马股份公司 | For manufacturing the method and workpiece complex of workpiece complex |
CN110114186B (en) * | 2017-03-23 | 2022-01-04 | 宝马股份公司 | Method for producing a workpiece composite body and workpiece composite body |
US11383329B2 (en) | 2017-03-23 | 2022-07-12 | Bayerische Motoren Werke Aktiengesellschaft | Method for producing a workpiece composite, and workpiece composite |
WO2021034930A1 (en) * | 2019-08-19 | 2021-02-25 | Worthington Industries, Inc. | Pre-weld modification technique for a custom welded blank |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2496371B1 (en) | Process for producing components having regions of differing ductility | |
EP2217393B1 (en) | Production method of highly dimensionally accurate half shells | |
EP1588784B1 (en) | Hybrid metal sheet and its method of manufacturing | |
DE102011113675A1 (en) | Reinforcement structure for reinforcing a side wall structure for a motor vehicle in the region of a door cutout | |
DE112008000488T5 (en) | Metal board with binder trim component and method | |
DE10133368A1 (en) | Vehicle body panel or component and method of making the same | |
DE102008020473A1 (en) | Method of producing thickness-varying sheet metal blanks | |
WO2005075279A1 (en) | Component with a joining region, method and tool for the production thereof | |
EP3362336B1 (en) | Arrangement for connecting two vehicle body components and method for producing a sheet metal component having a doubled joining flange | |
DE102015016629A1 (en) | Production of a welded structural element and welded structural element | |
DE102011052153A1 (en) | Method for manufacturing motor vehicle-bumper bracket, such as door impact absorber or bumper cross-beam made from metal plate, involves forming metal plate to double-U-profile, which has two U-shaped longitudinal sections | |
DE102009044417A1 (en) | Profile, particularly body profile for use in vehicle body, comprises base body, and reinforcement element arranged in base body, where reinforcement element comprises longitudinal fold | |
DE102005057259B4 (en) | Method for producing a hybrid component | |
DE102018210174A1 (en) | Process for producing a carrier and a lead or box frame | |
WO2013072055A1 (en) | Structural component for vehicle seats and process for the production thereof | |
EP3170570B1 (en) | Method for manufacturing a motor vehicle part | |
DE102004035887A1 (en) | Sheet metal plate for manufacturing motor vehicle body, has two sheet metals with different thickness, where thicker sheet metal`s edge area is rolled, so that thickness of thicker metal in edge area is reduced to thickness of thinner metal | |
DE102011007937B4 (en) | Method for producing a structural component of a motor vehicle body | |
EP0882639A2 (en) | Component for bodywork construction of motor vehicles and its method of manufacuture | |
DE4436882C2 (en) | Sheet metal component with load-bearing function | |
DE102015101141A1 (en) | Process for the production of sheet metal blanks, in particular of hybrid sheet blanks | |
DE102015119859A1 (en) | Method for producing a motor vehicle component and semifinished product made of light metal | |
DE102011013387A1 (en) | Producing composite workpiece made of two workpieces, comprises joining two metal plates made of light metal alloy and steel, and reducing after joining weld bead between the work pieces in its height regarding adjacent workpiece surface | |
EP3000543A1 (en) | Method for producing a sheet metal part with large wall thickness and such a sheet metal part | |
WO2018046473A1 (en) | Method and tool for producing sheet metal components |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8127 | New person/name/address of the applicant |
Owner name: DAIMLERCHRYSLER AG, 70327 STUTTGART, DE |
|
8127 | New person/name/address of the applicant |
Owner name: DAIMLER AG, 70327 STUTTGART, DE |
|
8120 | Willingness to grant licences paragraph 23 | ||
8139 | Disposal/non-payment of the annual fee |