WO2016184668A1 - Procédé et dispositif de soudage permettant un soudage à amorçage par arc tiré - Google Patents

Procédé et dispositif de soudage permettant un soudage à amorçage par arc tiré Download PDF

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Publication number
WO2016184668A1
WO2016184668A1 PCT/EP2016/059743 EP2016059743W WO2016184668A1 WO 2016184668 A1 WO2016184668 A1 WO 2016184668A1 EP 2016059743 W EP2016059743 W EP 2016059743W WO 2016184668 A1 WO2016184668 A1 WO 2016184668A1
Authority
WO
WIPO (PCT)
Prior art keywords
workpiece
welding
current
main
welding part
Prior art date
Application number
PCT/EP2016/059743
Other languages
German (de)
English (en)
Inventor
Hermann Krippl
Tuba BASKAYA
Original Assignee
Bayerische Motoren Werke Aktiengesellschaft
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 Aktiengesellschaft filed Critical Bayerische Motoren Werke Aktiengesellschaft
Publication of WO2016184668A1 publication Critical patent/WO2016184668A1/fr

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
    • B23K9/06—Arrangements or circuits for starting the arc, e.g. by generating ignition voltage, or for stabilising the arc
    • B23K9/067—Starting the arc
    • B23K9/0671—Starting the arc by means of brief contacts between the electrodes
    • 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
    • B23K9/095—Monitoring or automatic control of welding parameters
    • 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
    • B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
    • B23K9/1006—Power supply
    • B23K9/1012—Power supply characterised by parts of the process
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/20—Stud welding
    • B23K9/205—Means for determining, controlling or regulating the arc interval
    • 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
    • B23K9/23—Arc welding or cutting taking account of the properties of the materials to be welded
    • 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
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/10—Aluminium or alloys thereof

Definitions

  • the invention relates to a method for direct-current arc welding according to the preamble of patent claim 1 and to a welding device for carrying out the method.
  • a welded part e.g. a bolt, welded to a workpiece at a joint.
  • Vorstromphase a low bias current is switched on, which flows through the welding part and the workpiece.
  • Welded part is up to a predetermined distance from
  • the welding part On fusion of the materials of welding part and workpiece. To end the process, the welding part is lowered onto the workpiece or immersed in the workpiece by a small distance and the current is switched off. The melted materials cool.
  • the direct current welding with DC is an unstable and difficult to control process, especially when welding aluminum-containing workpieces or
  • Object of the present invention is to provide a method for DC-DC welding, with which the quality of the welded joint can be further improved, and a welding apparatus for performing the
  • the workpiece is operated as an anode and the amount of the bias current and the duration of the pre-current phase are selected so that the workpiece during the
  • Heat input on the workpiece side can be increased, whereby the quality of the welded joint is increased.
  • the method according to the invention therefore provides for increasing the amount of the pre-flow and / or the duration of the pre-flow phase compared with the known lift-and-strike welding methods. As a result, in the Vorstromphase the
  • the base material is better melted at the same time reduced melting of the weldment.
  • electrical energy in the pre-flow phase are introduced, preferably at least 50%, and more preferably
  • the introduced energy EGES is determined according to equation 1. wherein, in simplified terms, the energy E v introduced in the pre-flow period as the product of pre-flow Iv,
  • Arc voltage Uv in the Vorstromphase and Vorstromzeit tv gives (equation 2), and the introduced in the main flow period energy E H as the product of the main current I H ,
  • E H LH * U H * t H Depending on the materials used and component dimensions are different process parameters to achieve the
  • Pre-flow and pre-flow time are chosen in particular so that, although there is a significant heating in the workpiece, but not yet to a melting at the weldment. This takes place only in the following main flow or welding phase, including the
  • Main current or the main current time are selected accordingly.
  • Main current time preferably eight to 10 times the duration.
  • the amounts of pre-flow and main flow are selected such that the ratio of pre-flow to main flow is in a range of 0.3 to 0.5, preferably in a range of 0.35 to 0, 45th
  • the welding part is lowered onto the workpiece and the welding current is switched off.
  • the welding current is switched off in one embodiment, as soon as a ground contact between the welding part and the workpiece is produced.
  • Design can be achieved, in which the immersion, ie the lowering of the welding part on or in the workpiece, at a reduced speed of 0.11 m / s or less and preferably from 0.1 m / s or less.
  • T-bolts and threaded bolts preferably with a diameter in the range of 3 mm to 9 mm.
  • other types of bolts such as ball pins, etc., and bolts of other dimensions can also be applied to a workpiece by this method.
  • the method is particularly suitable for welding bolts on thin sheets having a thickness in the range of 0.5 mm to 3 mm.
  • the process achieves special advantages when welding aluminum-containing workpieces or
  • the method is not limited to the aforementioned workpieces and weldments.
  • a welding device for carrying out the method described above has a conventional holder for receiving a welding part. Furthermore, the welding device has a DC power source and a control and regulating device, by means of a direct current between the welding part (cathode) and a workpiece (anode) can be applied, to form an arc between the welding part and the workpiece.
  • the control and regulating device is suitable for carrying out the method described above, for example, the
  • Figure 2 is a schematic representation of a
  • Figure 1 shows a characteristic of a DC stud welding process according to an embodiment of the invention. It was a T-bolt with 5 mm diameter on a workpiece in the form of a hot-dip galvanized aluminum sheet (DX54D Z100) with a thickness of 0, 7 mm to 0, 8 mm
  • a bias current Iv of 100 A was switched on for a pre-current period t v of 0.1 s (100 milliseconds).
  • the bolt was raised 1.4 mm from the workpiece at a speed of 0.127 m / s.
  • the current was increased to a welding or main current I H of 270 A for a welding time tu
  • the bolt was lowered and slightly lowered into the plate at a speed of 100 mm / s.
  • the Vorstromzeit tv was extended.
  • the pre-flow phase lasts more than eight times as long as the subsequent welding phase.
  • the amount of the bias current I V was increased and the main current IH reduced.
  • Vorstrom l v and main current I H are at this Embodiment in a ratio of 0.37.
  • FIG. 2 shows a schematic representation of the essential components of a lift-and-lift welding system for carrying out the invention
  • the welding device 10 has a holder 20 for receiving and holding a welding part 100 in the form of a bolt. Opposite the bolt 100, a workpiece 200 is arranged, on which the bolt 100 is to be welded at a joint 300.
  • Welding apparatus 10 further comprises a DC power source 30, which by means of lines 32, 34 a Welding circuit is formed with the bolt 100 as a cathode and the workpiece 200 as an anode.
  • a control and regulating device 40 is connected via electrical lines 42, 44 in the device 10, and formed so that the for the
  • control and regulating device 40 via a not
  • Parameters may be formed or it may be e.g. one or more corresponding characteristics in the control and

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Arc Welding In General (AREA)

Abstract

L'invention concerne un procédé de soudage à amorçage par arc tiré à courant continu, selon lequel une pièce à souder (100) est soudée à une pièce (200) au niveau d'un point de jonction (300), un arc électrique étant tout d'abord constitué entre la pièce à souder (100) et la pièce (200) au cours d'une phase de courant de polarisation pendant un intervalle de courant de polarisation (tV) au moyen d'un courant de polarisation (IV) et le courant de polarisation (IV) étant augmenté à un courant principal (IH) pendant un intervalle de courant principal (tH) au cours d'une phase de courant principal ultérieure. La pièce fonctionne comme une anode et l'intervalle de courant de polarisation (tV) et/ou la grandeur du courant de polarisation (IV) sont réglées de sorte que la pièce (200) soit chauffée jusqu'à la déformabilité plastique pendant la phase de courant de polarisation au niveau du point de jonction (300). L'invention concerne en outre un procédé permettant de mettre en œuvre ledit procédé.
PCT/EP2016/059743 2015-05-20 2016-05-02 Procédé et dispositif de soudage permettant un soudage à amorçage par arc tiré WO2016184668A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015209203.8A DE102015209203B4 (de) 2015-05-20 2015-05-20 Verfahren zum Hubzündungsschweißen und Verwendung
DE102015209203.8 2015-05-20

Publications (1)

Publication Number Publication Date
WO2016184668A1 true WO2016184668A1 (fr) 2016-11-24

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Family Applications (1)

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PCT/EP2016/059743 WO2016184668A1 (fr) 2015-05-20 2016-05-02 Procédé et dispositif de soudage permettant un soudage à amorçage par arc tiré

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Country Link
DE (1) DE102015209203B4 (fr)
WO (1) WO2016184668A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019145074A1 (fr) * 2018-01-23 2019-08-01 Bayerische Motoren Werke Aktiengesellschaft Procédé de soudage d'une pièce à souder sur un élément de structure et utilisation d'une pièce à souder
CN111230258A (zh) * 2020-03-02 2020-06-05 广州市精源电子设备有限公司 逆变式拉弧焊电源、拉弧焊控制方法和拉弧点焊方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19925628A1 (de) * 1999-06-05 2000-12-07 Emhart Inc Hubzündungsschweißverfahren mit Reinigungsstufe
US20040169017A1 (en) * 2001-07-04 2004-09-02 Kanji Sakoda Method and device for welding an aluminum-based stud
EP1657017A2 (fr) * 2004-11-16 2006-05-17 Newfrey LLC Procédé et dispositif de soudage à l'arc par court-circuit
DE102011076104A1 (de) * 2011-05-19 2012-11-22 Bolzenschweißtechnik Heinz Soyer GmbH Schweißverfahren und Schweißvorrichtung
DE102012107702A1 (de) 2012-08-22 2014-02-27 Nelson Stud Welding, Inc. Schweißverfahren und Schweißvorrichtung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3611823A1 (de) * 1986-04-08 1987-10-15 Tucker Gmbh Steuerschaltung fuer das anschweissen von bauteilen, insbesondere schweissbolzen, an werkstuecke mittels gezogenem lichtbogen
DE102007039308A1 (de) * 2007-08-10 2009-02-12 Newfrey Llc, Newark Verfahren zum Kurzzeit-Bolzen Fügen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19925628A1 (de) * 1999-06-05 2000-12-07 Emhart Inc Hubzündungsschweißverfahren mit Reinigungsstufe
US20040169017A1 (en) * 2001-07-04 2004-09-02 Kanji Sakoda Method and device for welding an aluminum-based stud
EP1657017A2 (fr) * 2004-11-16 2006-05-17 Newfrey LLC Procédé et dispositif de soudage à l'arc par court-circuit
DE102011076104A1 (de) * 2011-05-19 2012-11-22 Bolzenschweißtechnik Heinz Soyer GmbH Schweißverfahren und Schweißvorrichtung
DE102012107702A1 (de) 2012-08-22 2014-02-27 Nelson Stud Welding, Inc. Schweißverfahren und Schweißvorrichtung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019145074A1 (fr) * 2018-01-23 2019-08-01 Bayerische Motoren Werke Aktiengesellschaft Procédé de soudage d'une pièce à souder sur un élément de structure et utilisation d'une pièce à souder
US11524355B2 (en) 2018-01-23 2022-12-13 Bayerische Motoren Werke Aktiengesellschaft Method for welding a welded part to a component and use of a welded part
CN111230258A (zh) * 2020-03-02 2020-06-05 广州市精源电子设备有限公司 逆变式拉弧焊电源、拉弧焊控制方法和拉弧点焊方法

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Publication number Publication date
DE102015209203A1 (de) 2016-11-24
DE102015209203B4 (de) 2017-06-14

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