[go: up one dir, main page]

SE8000998L - PROCEDURE FOR IGNITION OF A DIRECT WELDING BAG, SPECIFICALLY FOR PROTECTIVE GAS REAR WELDING WITH NON-MELTING ELEVATING ELECTRONS OF LIGHT METALS - Google Patents

PROCEDURE FOR IGNITION OF A DIRECT WELDING BAG, SPECIFICALLY FOR PROTECTIVE GAS REAR WELDING WITH NON-MELTING ELEVATING ELECTRONS OF LIGHT METALS

Info

Publication number
SE8000998L
SE8000998L SE8000998A SE8000998A SE8000998L SE 8000998 L SE8000998 L SE 8000998L SE 8000998 A SE8000998 A SE 8000998A SE 8000998 A SE8000998 A SE 8000998A SE 8000998 L SE8000998 L SE 8000998L
Authority
SE
Sweden
Prior art keywords
welding
ignition
electrode
workpiece
elevating
Prior art date
Application number
SE8000998A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
M Gillitzer
W Kopp
Original Assignee
Messer Griesheim Gmbh
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 Messer Griesheim Gmbh filed Critical Messer Griesheim Gmbh
Publication of SE8000998L publication Critical patent/SE8000998L/en

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
    • B23K9/0672—Starting the arc without direct contact between electrodes
    • B23K9/0673—Ionisation of the arc gap by means of a tension with a step front (pulses or high frequency tensions)
    • 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
    • B23K9/16—Arc welding or cutting making use of shielding gas
    • B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding Control (AREA)
  • Arc Welding In General (AREA)

Abstract

In DC, straight polarity, arc welding, proper ignition of the arc at the beginning of the welding process is achieved by reversing the polarity of the electrode and of the workpiece for a short period, and with the electrode and workpiece connected respectively to the positive and negative poles of the power source, supplying an ignition pulse between the electrode and the workpiece. As shown, a power source 10 is connected via a pole-reversing switch 13 to an electrode 14 and workpiece 15. Pulses from the power source 10 reverse the polarity of switch 13 for a period, of less than one second, determined by a timing relay 17, and during this period power is supplied to an ignition unit 16 which ignites the arc. The method has particular application to fully mechanised welding of light alloys, such as aluminum; in an inert-gas atmosphere (e.g. He or He/A) with a non-consumable electrode. <IMAGE>
SE8000998A 1979-02-07 1980-02-07 PROCEDURE FOR IGNITION OF A DIRECT WELDING BAG, SPECIFICALLY FOR PROTECTIVE GAS REAR WELDING WITH NON-MELTING ELEVATING ELECTRONS OF LIGHT METALS SE8000998L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792904481 DE2904481A1 (en) 1979-02-07 1979-02-07 METHOD FOR ENDING A DC CURRENT WELDING ARC, ESPECIALLY IN PROTECTIVE GAS ARC WELDING WITH NON-MELTING ELECTRODE OF LIGHT METALS

Publications (1)

Publication Number Publication Date
SE8000998L true SE8000998L (en) 1980-08-08

Family

ID=6062297

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8000998A SE8000998L (en) 1979-02-07 1980-02-07 PROCEDURE FOR IGNITION OF A DIRECT WELDING BAG, SPECIFICALLY FOR PROTECTIVE GAS REAR WELDING WITH NON-MELTING ELEVATING ELECTRONS OF LIGHT METALS

Country Status (5)

Country Link
CH (1) CH645052A5 (en)
DE (1) DE2904481A1 (en)
FR (1) FR2448411A1 (en)
GB (1) GB2042956B (en)
SE (1) SE8000998L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19925628A1 (en) * 1999-06-05 2000-12-07 Emhart Inc Ignition welding process comprises purifying surface of component by applying first voltage producing light arc between element to be connected to surface, and changing polarity of first voltage
DE10001344A1 (en) 2000-01-14 2001-07-19 Emhart Inc Method and device for multi-stage arc welding
DE102020209717A1 (en) * 2020-07-31 2022-02-03 Fronius International Gmbh Process and device for welding workpieces

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3382345A (en) * 1966-08-01 1968-05-07 Air Reduction Asymmetric alternating current welding
DE1907023B2 (en) * 1969-02-12 1974-04-11 Messer Griesheim Gmbh, 6000 Frankfurt Method and device for igniting a direct current arc during welding with a non-consumable electrode

Also Published As

Publication number Publication date
CH645052A5 (en) 1984-09-14
FR2448411B1 (en) 1985-03-22
FR2448411A1 (en) 1980-09-05
GB2042956B (en) 1983-04-13
DE2904481A1 (en) 1980-08-21
GB2042956A (en) 1980-10-01

Similar Documents

Publication Publication Date Title
AU4469489A (en) Apparatus and method of short circuiting arc welding
RU2010147910A (en) SYSTEM AND METHOD FOR INCREASING HEAT SUPPLY TO THE WELDING PLACE DURING THE VIBRO-ARC WELDING PROCESS
GB1492311A (en) Electric arc-welding processes and apparatus therefor
GB1152508A (en) Asymmetric Alternating Current Welding
SE8000998L (en) PROCEDURE FOR IGNITION OF A DIRECT WELDING BAG, SPECIFICALLY FOR PROTECTIVE GAS REAR WELDING WITH NON-MELTING ELEVATING ELECTRONS OF LIGHT METALS
DE3369263D1 (en) Method and apparatus for metal arc welding
RU96112780A (en) METHOD FOR IGNITING A WELDING ARC
JPS5662674A (en) Pulse arc welding method
ATE153891T1 (en) METHOD AND APPARATUS FOR TIG WELDING
JPS56144871A (en) Method and device for pulse welding
JPS53119758A (en) Power source apparatus for high frequency pulse arc welding
JPS57124572A (en) Arc welding method
JP2873716B2 (en) Starting AC arc
JPS56134078A (en) Consumable electrode type gas shielded arc welding method
RU2012461C1 (en) Method of ac arc welding with non-combustible electrode
JPS5653876A (en) Flying start method of spot scarfer
SU536017A1 (en) AC power supply for fusion welding
SU1266687A1 (en) Method of a.c. arc welding of aluminium alloys with nonconsumable electrode
CN112643177A (en) Consumable electrode pulse arc welding method and welding apparatus
JPS53149147A (en) Tig welding method
JPS5416345A (en) Automatic welding method for holding constant arc length
JPS56136277A (en) Mig arc welding method of aluminum alloy
JPS5689384A (en) Narrow groove arc welding method and its device
SU516485A1 (en) Crater welding method
JPS57187178A (en) Pulse arc welding method

Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 8000998-8

Format of ref document f/p: F