DE29911121U1 - Compound welding stud - Google Patents
Compound welding studInfo
- Publication number
- DE29911121U1 DE29911121U1 DE29911121U DE29911121U DE29911121U1 DE 29911121 U1 DE29911121 U1 DE 29911121U1 DE 29911121 U DE29911121 U DE 29911121U DE 29911121 U DE29911121 U DE 29911121U DE 29911121 U1 DE29911121 U1 DE 29911121U1
- Authority
- DE
- Germany
- Prior art keywords
- welding
- stud
- steel
- welding stud
- aluminum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000003466 welding Methods 0.000 title claims description 26
- 150000001875 compounds Chemical class 0.000 title 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 238000010894 electron beam technology Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
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
- B23K9/207—Features related to studs
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0288—Welding studs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/06—Specially-shaped heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
- F16B37/06—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting
- F16B37/061—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of welding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Description
Zusammengesetzter SchweißbolzenComposite welding stud
Die Erfindung betrifft einen Schweißbolzen, insbesondere zur Verwendung als Erdungsbolzen für Automobilkarosserien.The invention relates to a welding stud, in particular for use as a grounding stud for automobile bodies.
Bei herkömmlichen Stahlblechkarosserien bestehen derartige mit einem Gewinde versehenen Erdungsbolzen ebenfalls aus Stahl, wobei die Befestigung mittels Bolzenschweißtechnik (Hubzündung) oder Widerstandsschweißung (Noppenschweißen) problemlos ist, hohe Festigkeit gewährleistet, roboterfähig ist und daher bei geringen Kosten hohe Taktzeiten gestattet.
Bei neuerdings aus Aluminiumblech bestehenden Karosserien ist Widerstandsschweißung nicht möglich. Aluminiumbolzen lassen sich zwar mittels Bolzenschweißung an Aluminiumblech anschweißen; sie sind aber zu weich und halten als Gewindebolzen nicht das geforderte Drehmoment (z.B. 16 Nm bei M6-Bolzen, 24 Nm bei M8-Bolzen) aus. Ferner besteht bei Aluminiumbolzen die Tendenz, daß sich das Gewinde im Lauf der Zeit "setzt" so daß das ursprünglich erreichte Anzugsmoment nicht über längere Zeit gehalten wird. Darüberhinaus verbietet sich ein Aufschweißen von Bolzen mit größeren Durchmessern mittels der sogenannten MIG-Ringschweißnaht aus Kostengründen.In conventional sheet steel bodies, such threaded grounding bolts are also made of steel, whereby fastening using stud welding technology (drawn arc welding) or resistance welding (stud welding) is straightforward, ensures high strength, is robot-compatible and therefore allows high cycle times at low cost.
Resistance welding is not possible with new bodies made of aluminum sheet. Aluminum bolts can be welded to aluminum sheet using bolt welding, but they are too soft and cannot withstand the required torque as threaded bolts (e.g. 16 Nm for M6 bolts, 24 Nm for M8 bolts). Furthermore, aluminum bolts have a tendency for the thread to "settle" over time, meaning that the original tightening torque is not maintained for a long time. In addition, welding bolts with larger diameters using the so-called MIG ring weld is not permitted for cost reasons.
Die scheinbar zur Verfügung stehende Alternative, auch in einem derartigen Fall Erdungsbolzen aus Stahl zu verwenden, scheidet aus, weil sich Stahl mit Aluminium nicht verschweißen läßt.The seemingly available alternative of using steel earthing bolts in such a case is not possible because steel cannot be welded to aluminum.
Eine weitere Alternative, Stahl-Gewindebolzen in eine Aluminiumkarosserie einzupressen, scheidet aus Stabilitätsgründen aus.Another alternative, pressing steel threaded bolts into an aluminum body, is not possible for stability reasons.
Der Erfindung liegt die Aufgabe zugrunde, einen Gewindebolzen anzugeben, der sich auf Aluminiumblech anschweißen läßt und hohe Drehmomente aushält.The invention is based on the object of specifying a threaded bolt that can be welded to aluminum sheet and can withstand high torques.
Die erfindungsgemäße Lösung ist im Anspruch 1 angegeben. Der danach vorgesehene Schweißbolzen weist einen Spitzenteil aus Aluminium auf, während der übrige, mit einem Gewinde versehene Teil aus Stahl besteht.The solution according to the invention is specified in claim 1. The welding stud provided therein has a tip part made of aluminum, while the remaining threaded part is made of steel.
O O
Aus DE 82 20 820 Ul ist es zwar bekannt, Schweißbolzen aus unterschiedlichen Werkstoffen herzustellen. Dort geht es aber um eine andere Aufgabe, nämlich Bolzen als Verankerungsmittel für Ortbeton an Edelstahl-Fassadenplatten einzusetzen und dabei an teurem Edelstahl zu sparen. Aus diesem Grund besteht nur die Schaftspitze aus Edelstahl, während der restliche Schaft samt Kopf aus billigem Baustahl gefertigt ist.It is known from DE 82 20 820 Ul that welding studs can be made from different materials. However, this involves a different task, namely using studs as anchoring elements for in-situ concrete on stainless steel facade panels and thereby saving on expensive stainless steel. For this reason, only the tip of the shaft is made of stainless steel, while the rest of the shaft and head are made of cheap structural steel.
Vorzugsweise sind die beiden Teile des erfindungsgemäßen Schweißbozen mittels Reibschweißen miteinander verbunden. Alternativ kann die Verbindung auch durch Ultraschall- oder Elektronenstrahlschweißen hergestellt werden.Preferably, the two parts of the welding bolt according to the invention are connected to one another by means of friction welding. Alternatively, the connection can also be made by ultrasonic or electron beam welding.
Der erfindungsgemäße Schweißbolzen läßt sich aus vorgefertigten Teilen (Bolzen mit Stahl bzw. Edelstahlgewinde; Aluminium-Spitzenteil) herstellen. Der fertige Bolzen kann in üblicher Weise durch Bolzenschweißtechnik aufgeschweißt werden. Daher läßt er sich mit hoher Taktgeschwindigkeit über Roboter automatisch zuführen und verschweißen. Das in dem Stahlteil vorhandene Gewinde hält das gewünschte Drehmoment aus.The welding stud according to the invention can be manufactured from prefabricated parts (stud with steel or stainless steel thread; aluminum tip part). The finished stud can be welded on in the usual way using stud welding technology. It can therefore be automatically fed and welded by robots at high cycle speeds. The thread in the steel part can withstand the desired torque.
Ein Ausführungsbeispiel der Erfindung ist in der beigefügten Zeichnung dargestellt. Diese zeigt einen Bolzen aus einem mit einem Außengewinde 1 versehenen Stahlschaft 2, dessen Fußteil 3 gegenüber dem Schaft 2 einen vergrößerten Durchmesser aufweist. An dem Fußteil 3 ist ein Spitzenteil 4 aus Aluminium durch eine mittels Reibschweißen erzeugte Schweißnaht 5 verbunden.An embodiment of the invention is shown in the accompanying drawing. This shows a bolt made of a steel shaft 2 provided with an external thread 1, the base part 3 of which has an enlarged diameter compared to the shaft 2. A tip part 4 made of aluminum is connected to the base part 3 by a weld seam 5 produced by means of friction welding.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29911121U DE29911121U1 (en) | 1999-06-25 | 1999-06-25 | Compound welding stud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29911121U DE29911121U1 (en) | 1999-06-25 | 1999-06-25 | Compound welding stud |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29911121U1 true DE29911121U1 (en) | 2000-11-02 |
Family
ID=8075305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29911121U Expired - Lifetime DE29911121U1 (en) | 1999-06-25 | 1999-06-25 | Compound welding stud |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE29911121U1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1207000A2 (en) * | 2000-11-15 | 2002-05-22 | HILBIG SCHWEISSTECHNIK GmbH | Welding stud and method of its manufacture |
| EP1264656A1 (en) * | 2001-06-06 | 2002-12-11 | HILBIG SCHWEISSTECHNIK GmbH | Process for making a friction welding joint and welding stud therefor |
| DE102008005508A1 (en) * | 2008-01-22 | 2009-07-30 | Heinz Soyer Bolzenschweisstechnik Gmbh | Cupped head pin for stud welding has shaft welded to head, which may be of same material as pin |
| CN105715652A (en) * | 2016-04-08 | 2016-06-29 | 航天精工股份有限公司 | Bimetallic blind hole bolt |
| WO2018162127A1 (en) * | 2017-03-10 | 2018-09-13 | Bayerische Motoren Werke Aktiengesellschaft | Bolt for fastening components, or the earth connection of electrical or electronic components, on a vehicle body, a bolt arrangement having a bolt, and a method for forming the bolt arrangement |
| EP4124536A1 (en) * | 2021-07-26 | 2023-02-01 | Siemens Mobility GmbH | Method for manufacturing an assembly comprising a vehicle body and a connecting element |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4401881A1 (en) * | 1994-01-23 | 1995-07-27 | Trw Nelson Bolzenschweisstechn | Welding stud made of aluminum |
-
1999
- 1999-06-25 DE DE29911121U patent/DE29911121U1/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4401881A1 (en) * | 1994-01-23 | 1995-07-27 | Trw Nelson Bolzenschweisstechn | Welding stud made of aluminum |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1207000A2 (en) * | 2000-11-15 | 2002-05-22 | HILBIG SCHWEISSTECHNIK GmbH | Welding stud and method of its manufacture |
| EP1207000A3 (en) * | 2000-11-15 | 2004-05-06 | HILBIG SCHWEISSTECHNIK GmbH | Welding stud and method of its manufacture |
| EP1264656A1 (en) * | 2001-06-06 | 2002-12-11 | HILBIG SCHWEISSTECHNIK GmbH | Process for making a friction welding joint and welding stud therefor |
| DE102008005508A1 (en) * | 2008-01-22 | 2009-07-30 | Heinz Soyer Bolzenschweisstechnik Gmbh | Cupped head pin for stud welding has shaft welded to head, which may be of same material as pin |
| CN105715652A (en) * | 2016-04-08 | 2016-06-29 | 航天精工股份有限公司 | Bimetallic blind hole bolt |
| CN105715652B (en) * | 2016-04-08 | 2018-11-06 | 航天精工股份有限公司 | A kind of bimetallic blind hole bolt |
| WO2018162127A1 (en) * | 2017-03-10 | 2018-09-13 | Bayerische Motoren Werke Aktiengesellschaft | Bolt for fastening components, or the earth connection of electrical or electronic components, on a vehicle body, a bolt arrangement having a bolt, and a method for forming the bolt arrangement |
| CN110050132A (en) * | 2017-03-10 | 2019-07-23 | 宝马股份公司 | For component to be fastened on bolt electrical or that electronic component grounding connection is on vehicle body, the bolt system with bolt and the method for being used to construct bolt system on vehicle body or be used for |
| US11498160B2 (en) | 2017-03-10 | 2022-11-15 | Bayerische Motoren Werke Aktiengesellschaft | Bolt for fastening components, or the ground connection of electrical or electronic components, on a vehicle body, a bolt arrangement having a bolt, and a method for forming the bolt arrangement |
| EP4124536A1 (en) * | 2021-07-26 | 2023-02-01 | Siemens Mobility GmbH | Method for manufacturing an assembly comprising a vehicle body and a connecting element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R163 | Identified publications notified | ||
| R207 | Utility model specification |
Effective date: 20001207 |
|
| R081 | Change of applicant/patentee |
Owner name: HBS BOLZENSCHWEISSSYSTEME GMBH & CO. KG, DE Free format text: FORMER OWNER: HBS BOLZENSCHWEISS-SYSTEME GMBH, 85221 DACHAU, DE Effective date: 20010801 |
|
| R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20030113 |
|
| R157 | Lapse of ip right after 6 years |
Effective date: 20060103 |