DE10102444A1 - Fixing of steel bolts onto automobile body panel uses welding of intermediate structure - Google Patents

Fixing of steel bolts onto automobile body panel uses welding of intermediate structure

Info

Publication number
DE10102444A1
DE10102444A1 DE10102444A DE10102444A DE10102444A1 DE 10102444 A1 DE10102444 A1 DE 10102444A1 DE 10102444 A DE10102444 A DE 10102444A DE 10102444 A DE10102444 A DE 10102444A DE 10102444 A1 DE10102444 A1 DE 10102444A1
Authority
DE
Germany
Prior art keywords
aluminum
steel
welding
fixing
body panel
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Withdrawn
Application number
DE10102444A
Other languages
German (de)
Inventor
Volker Fleischmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to DE10102444A priority Critical patent/DE10102444A1/en
Publication of DE10102444A1 publication Critical patent/DE10102444A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/20—Stud welding
    • B23K9/201—Stud welding of the extremity of a small piece on a great or large basis
    • 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
    • B23K26/32—Bonding taking account of the properties of the material involved
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/02—Iron or ferrous alloys
    • B23K2103/04—Steel or steel alloys
    • 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
    • B23K2103/18—Dissimilar materials
    • B23K2103/20—Ferrous alloys and aluminium or alloys thereof

Abstract

The aluminum body panel of automobile (2) has an intermediate structure (3) for the fixing of steel bolts (1). The bolt is fixed to a steel plate (4) that is welded to an intermediate plate of aluminum (5). The process uses WIG or MIG welding for fixing to the intermediate structure. Laser welding secures the assembly to the body panel.

Description

Die Erfindung bezieht sich auf ein Verfahren der im Oberbegriff des 1. Anspruches angegebenen Art.The invention relates to a method in the preamble of claim 1 specified type.

Es ist bekannt, bei Fahrzeugen mit einer Aluminiumkarosserie oder einem Aluminiumrahmen die Massebolzen mittels Reibschweißen auf einen Aluminiumprofilabschnitt in einem ersten Arbeitsgang aufzuschweißen. Der Aluminiumprofilabschnitt wird dann mittels bekannter für das Aluminiumschweißen geeigneter Schweißverfahren auf dem Aluminiumblech des Fahrzeugs verschweißt.It is known in vehicles with an aluminum body or Aluminum frame, the earth bolts by means of friction welding Welding the aluminum profile section in a first step. The Aluminum profile section is then known by means of aluminum welding suitable welding process welded to the aluminum sheet of the vehicle.

Dieses Verfahren ist sehr kostenintensiv.This process is very expensive.

Aufgabe der vorliegenden Erfindung ist es, ein kostengünstigeres Verfahren zum Befestigen von Stahlbolzen auf Aluminiumblech vorzuschlagen.The object of the present invention is to provide a less expensive method for Propose steel bolts to suggest aluminum sheet.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des 1. Anspruches gelöst.According to the invention, this object is achieved by the characterizing features of FIG. Claim solved.

Die Erfindung basiert auf der Erkenntnis, dass der Stahlbolzen nicht direkt mit einem Aluminiumblech verbunden wird, sondern dass ein Zwischenträger vorgesehen, ist, der aus einem Stahlaluminiumverbundwerkstoff besteht. Derartige Zwischenträger können im Großserienverfahren hergestellt werden. Ein bevorzugtes Verfahren hierfür ist das Press-Laserschweißverfahren. Damit sind diese Zwischenträger preiswert herzustellen, wobei sie auch als Endlosplatine hergestellt werden können. Dementsprechend wird dann der Stahlbolzen auf ein Stahlblech mittels bekannter preisgünstiger Verfahren aufgeschweißt und dann der Zwischenträger mit seinem Aluminiumblech auf das Aluminiumblech des Fahrzeugs. Diese Vorgehensweise ist wesentlich preiswerter als die bekannte Anordnung, ein Stahlbolzen mittels Reibschweißung auf einen Aluminiumprofilträger aufzuschweißen.The invention is based on the knowledge that the steel bolt is not directly connected an aluminum sheet, but that an intermediate beam is provided, which consists of a steel-aluminum composite material. such Intermediate beams can be manufactured in a large series process. On  The preferred method for this is the press laser welding method. With that to produce these intermediate carriers inexpensively, and they also as an endless board can be produced. Accordingly, the steel bolt is then on Steel sheet welded using known inexpensive methods and then the Intermediate carrier with its aluminum sheet on the aluminum sheet of the Vehicle. This procedure is much cheaper than the known one Arrangement, a steel bolt by means of friction welding on an aluminum profile carrier to weld.

Die Unteransprüche beschreiben vorteilhafte Ausgestaltungen der Erfindung.The subclaims describe advantageous embodiments of the invention.

In der einzigen Abbildung ist ein schematisierter Querschnitt durch eine erfindungsgemäße Verbindung dargestellt.In the only picture is a schematic cross section through a Connection shown according to the invention.

Hierbei ist der Massebolzen mit 1, das Aluminiumblech der Fahrzeugkarosserie oder eine Trägerstruktur eines Fahrzeugs mit 2 und der Zwischenträger mit 3 bezeichnet.Here, the ground bolt with 1, the aluminum sheet of the vehicle body or a carrier structure of a vehicle with 2 and the intermediate carrier with 3 designated.

Der Zwischenträger 3 besteht aus einem Stahlblech 4 und jeweils zwei seitlich an dem Stahlblech 4 angeschweißten Aluminiumblechen 5. Als Schweißverfahren dient das Press-Laserschweißen, bei dem ein Endlosband aus Stahl mit zwei Endlosbändern aus Aluminium verschweißt wird. Aus diesem Endlosverbund können dann entsprechend dimensionierte Zwischenträger 3 abgetrennt werden.The intermediate carrier 3 consists of a steel sheet 4 and in each case two aluminum sheets 5 welded to the side of the steel sheet 4 . Press laser welding is used as the welding process, in which an endless belt made of steel is welded to two endless belts made of aluminum. For this continuous composite then appropriately dimensioned intermediate support 3 can be separated.

Der Massebolzen ist ein handelsübliches Bauteil, dass bei Fahrzeugen verwendet wird, um für ein elektrisches Bauteil einen Massenanschluss mit dem Fahrzeugkörper zu erreichen.The ground bolt is a commercially available component that is used in vehicles is used to make a ground connection for the electrical component To reach vehicle body.

Er wird mittels Widerstandschweißen mit dem Stahlblech 4 des Zwischenträgers 3 verschweißt. Dies kann auch vollautomatisch erfolgen, so dass dann zur Fahrzeugkarosserie fertig auf dem Zwischenträger verschweißte Stahlbolzen angeliefert werden. It is welded to the steel sheet 4 of the intermediate carrier 3 by means of resistance welding. This can also be done fully automatically, so that welded steel bolts are then delivered to the vehicle body on the intermediate carrier.

Zum Befestigen des Stahlbolzen 1 mit seinem Zwischenträger 3 an dem Aluminiumblech des Fahrzeugs wird beispielsweise das WIG- oder MIG- Schweißverfahren verwendet, in dem das Aluminiumblech 5 des Zwischenträgers 3 mit dem Aluminiumblech 2 der Fahrzeugkarosserie verschweißt wird. Daneben können auch das Laser- oder Widerstandspunktschweißen zum Befestigen des Zwischenträgers 3 an dem Aluminiumblech 2 verwendet werden.For fastening the steel bolt 1 with its intermediate support 3 to the aluminum sheet of the vehicle, for example the WIG or MIG welding method is used, in which the aluminum sheet 5 of the intermediate support 3 is welded to the aluminum sheet 2 of the vehicle body. In addition, laser or resistance spot welding can also be used to fasten the intermediate carrier 3 to the aluminum sheet 2 .

Damit steht eine kostengünstige und schnelle Möglichkeit zur Verfügung, Stahlbolzen an Aluminiumblechen anzuschweißen.This provides an inexpensive and quick way to Welding steel bolts to aluminum sheets.

Claims (4)

1. Verfahren zum Anschweißen von Stahlbolzen auf ein Alublech, insbesondere Massebolzen auf eine Aluminiumkarosserie oder ein Aluminiumrahmen für Kraftfahrzeuge, dadurch gekennzeichnet, dass der Stahlbolzen auf einen Zwischenträger verschweißt wird, der aus einem vorgefertigten Verbundwerkstoff besteht, dessen eine Seite ein Stahlblech und dessen andere Seite ein Aluminiumblech ist und dass der Zwischenträger über sein Aluminiumblech mit dem Aluminiumblech des Fahrzeugs verschweißt wird.1. A method for welding steel bolts to an aluminum sheet, in particular earth bolts to an aluminum body or an aluminum frame for motor vehicles, characterized in that the steel bolt is welded to an intermediate carrier which consists of a prefabricated composite material, one side of which is a steel sheet and the other side of which is an aluminum sheet and that the intermediate carrier is welded to the aluminum sheet of the vehicle via its aluminum sheet. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Stahlbolzen auf den Zwischenträger mittels Widerstandsschweißen verschweißt wird.2. The method according to claim 1, characterized in that the steel bolt on the intermediate beam is welded by means of resistance welding. 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die beiden Bleche des Zwischenträgers durch Press-Laserschweißen miteinander verbunden sind. 3. The method according to claim 1 or 2, characterized in that the two sheets of the intermediate beam are joined together by press laser welding.   4. Verfahren nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass der Zwischenträger auf das Aluminiumblech des Fahrzeugs mittels WIG- oder MIG-Schweißung befestigt wird.4. The method according to any one of the preceding claims, characterized in that the intermediate carrier on the Aluminum sheet of the vehicle using TIG or MIG welding is attached.
DE10102444A 2001-01-19 2001-01-19 Fixing of steel bolts onto automobile body panel uses welding of intermediate structure Withdrawn DE10102444A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10102444A DE10102444A1 (en) 2001-01-19 2001-01-19 Fixing of steel bolts onto automobile body panel uses welding of intermediate structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10102444A DE10102444A1 (en) 2001-01-19 2001-01-19 Fixing of steel bolts onto automobile body panel uses welding of intermediate structure

Publications (1)

Publication Number Publication Date
DE10102444A1 true DE10102444A1 (en) 2002-11-28

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DE10102444A Withdrawn DE10102444A1 (en) 2001-01-19 2001-01-19 Fixing of steel bolts onto automobile body panel uses welding of intermediate structure

Country Status (1)

Country Link
DE (1) DE10102444A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006013919A1 (en) * 2006-03-25 2007-09-27 Daimlerchrysler Ag Motor vehicle body sheet metal plate, has recess filled with electrically conductive adhesive, and measuring pin fastened to contact point by press-adhesive connection that is formed with adhesive including metallic conductive particles
CN102114561B (en) * 2009-12-31 2013-06-05 南京理工大学 Method of pre-copper-plated induction welding-brazing of aluminum-steel stud bolt
DE102012020223A1 (en) * 2012-10-16 2014-04-17 Volkswagen Aktiengesellschaft Assembling components made of different metallic materials, comprises connecting welding auxiliary element with first component by friction welding, and connecting second component to first component by resistance welding
DE102013210614A1 (en) * 2013-06-07 2014-12-11 Bayerische Motoren Werke Aktiengesellschaft Repair procedure for a ground bolt
WO2017041919A1 (en) * 2015-09-11 2017-03-16 Bayerische Motoren Werke Aktiengesellschaft Earth connection for an aluminium component

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0081615A1 (en) * 1981-12-15 1983-06-22 Schweizerische Aluminium Ag Process for making a welded joint and a transition piece for carrying out the process
DE4240824A1 (en) * 1992-12-04 1994-01-13 Daimler Benz Ag Weld joint between components made respectively of steel and aluminium sheet - with the edge of the steel component provided with an aluminium layer
DE19913436C1 (en) * 1999-03-25 2000-12-14 Erbsloeh Ag Welded connection between components of different materials has additional material welded to one component and used to fill recesses in other component

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0081615A1 (en) * 1981-12-15 1983-06-22 Schweizerische Aluminium Ag Process for making a welded joint and a transition piece for carrying out the process
DE4240824A1 (en) * 1992-12-04 1994-01-13 Daimler Benz Ag Weld joint between components made respectively of steel and aluminium sheet - with the edge of the steel component provided with an aluminium layer
DE19913436C1 (en) * 1999-03-25 2000-12-14 Erbsloeh Ag Welded connection between components of different materials has additional material welded to one component and used to fill recesses in other component

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP 08338413 A.,In: Patent Abstracts of Japan *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006013919A1 (en) * 2006-03-25 2007-09-27 Daimlerchrysler Ag Motor vehicle body sheet metal plate, has recess filled with electrically conductive adhesive, and measuring pin fastened to contact point by press-adhesive connection that is formed with adhesive including metallic conductive particles
CN102114561B (en) * 2009-12-31 2013-06-05 南京理工大学 Method of pre-copper-plated induction welding-brazing of aluminum-steel stud bolt
DE102012020223A1 (en) * 2012-10-16 2014-04-17 Volkswagen Aktiengesellschaft Assembling components made of different metallic materials, comprises connecting welding auxiliary element with first component by friction welding, and connecting second component to first component by resistance welding
DE102013210614A1 (en) * 2013-06-07 2014-12-11 Bayerische Motoren Werke Aktiengesellschaft Repair procedure for a ground bolt
WO2017041919A1 (en) * 2015-09-11 2017-03-16 Bayerische Motoren Werke Aktiengesellschaft Earth connection for an aluminium component
CN107743667A (en) * 2015-09-11 2018-02-27 宝马股份公司 Ground terminal for al member
US10411365B2 (en) 2015-09-11 2019-09-10 Bayerische Motoren Werke Aktiengesellschaft Ground connection for an aluminium component
CN107743667B (en) * 2015-09-11 2019-09-10 宝马股份公司 Ground terminal for al member

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Legal Events

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OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8141 Disposal/no request for examination