JPS57134268A - Multielectrode arc welding method - Google Patents

Multielectrode arc welding method

Info

Publication number
JPS57134268A
JPS57134268A JP1908881A JP1908881A JPS57134268A JP S57134268 A JPS57134268 A JP S57134268A JP 1908881 A JP1908881 A JP 1908881A JP 1908881 A JP1908881 A JP 1908881A JP S57134268 A JPS57134268 A JP S57134268A
Authority
JP
Japan
Prior art keywords
welding
current
alternately
switching
electrode
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.)
Pending
Application number
JP1908881A
Other languages
Japanese (ja)
Inventor
Masayasu Nihei
Eiji Ashida
Fumio Taguchi
Satoshi Ogura
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP1908881A priority Critical patent/JPS57134268A/en
Publication of JPS57134268A publication Critical patent/JPS57134268A/en
Pending 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
    • B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls

Landscapes

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

Abstract

PURPOSE:To obtain good cleaning effect and deep penetration and to perform welding of high quality with high performance by flowing AC current to electrodes in the case of performing welding by flowing current alternately to the respective electrodes. CONSTITUTION:In a multielectrode welding device, welding electric current is controlled with a transistor 2 for controlling welding current, and the controlled welding current is converted to AC current by switching transistors 3, 4 and 5, 6 for switching alternately. The signals for switching the AC current alternately are generated from a control device 16 to fire thyristors 8, 9, 10, 11, whereby AC waveforms are obtained in an electrode A and an electrode B. In order to generate and sustain the arc stably, high voltage high frequency pulses are generated from the controller 16 in synchronization with the rise of the welding currents of the respective electrodes, and are superposed at all times on the welding current.
JP1908881A 1981-02-13 1981-02-13 Multielectrode arc welding method Pending JPS57134268A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1908881A JPS57134268A (en) 1981-02-13 1981-02-13 Multielectrode arc welding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1908881A JPS57134268A (en) 1981-02-13 1981-02-13 Multielectrode arc welding method

Publications (1)

Publication Number Publication Date
JPS57134268A true JPS57134268A (en) 1982-08-19

Family

ID=11989694

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1908881A Pending JPS57134268A (en) 1981-02-13 1981-02-13 Multielectrode arc welding method

Country Status (1)

Country Link
JP (1) JPS57134268A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS511339A (en) * 1974-06-17 1976-01-08 Mitsubishi Heavy Ind Ltd ARUMINIUM UKEIKINZOKUZAINOYOSETSUHOHO
JPS5419442A (en) * 1977-07-13 1979-02-14 Hitachi Ltd Method of and apparatus for multi-pole arc welding

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS511339A (en) * 1974-06-17 1976-01-08 Mitsubishi Heavy Ind Ltd ARUMINIUM UKEIKINZOKUZAINOYOSETSUHOHO
JPS5419442A (en) * 1977-07-13 1979-02-14 Hitachi Ltd Method of and apparatus for multi-pole arc welding

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