JPS57168770A - Controlling method for crater treatment of tig welding - Google Patents

Controlling method for crater treatment of tig welding

Info

Publication number
JPS57168770A
JPS57168770A JP5412281A JP5412281A JPS57168770A JP S57168770 A JPS57168770 A JP S57168770A JP 5412281 A JP5412281 A JP 5412281A JP 5412281 A JP5412281 A JP 5412281A JP S57168770 A JPS57168770 A JP S57168770A
Authority
JP
Japan
Prior art keywords
welding
crater treatment
arc
prescribed
crater
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
JP5412281A
Other languages
Japanese (ja)
Inventor
Kenichi Akahori
Kazunobu Kojo
Kenjiro Shibuya
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP5412281A priority Critical patent/JPS57168770A/en
Publication of JPS57168770A publication Critical patent/JPS57168770A/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
    • B23K9/1006—Power supply
    • B23K9/1012—Power supply characterised by parts of the process
    • B23K9/1037—Means preventing crater forming at the extremity of the seam

Landscapes

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

Abstract

PURPOSE:To prevent the generation of short circuiting during changing over and to perform smooth crater treatment by reducing arc current at the end of welding and reducing the arc voltage after prescribed time then changing over the welding to the crater treatment. CONSTITUTION:In the TIG welding executed by controlling the distance between a W electrode and the work constant in such a way that arc voltage assumes a set voltage value, in the stage of changing over welding to a crater treatment upon ending of the welding, only the arc current is first reduced to the prescribed current in the crater treatment, and is controlled to the direction of making the arc length long, after which the arc voltage is reduced to the prescribed value in the crater treatment at the point of the time when the prescribed times elapses, whereby the crater treatment is accomplished. In a control circuit, the welding is started when a switch PB1 is turned on. Upon ending of the welding, a switch PB2 is turned on to turn relays CR6, CR7, timers TM6, TM7 and a relay CRTM successively on, whereby the crater treatment is controlled.
JP5412281A 1981-04-09 1981-04-09 Controlling method for crater treatment of tig welding Pending JPS57168770A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5412281A JPS57168770A (en) 1981-04-09 1981-04-09 Controlling method for crater treatment of tig welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5412281A JPS57168770A (en) 1981-04-09 1981-04-09 Controlling method for crater treatment of tig welding

Publications (1)

Publication Number Publication Date
JPS57168770A true JPS57168770A (en) 1982-10-18

Family

ID=12961789

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5412281A Pending JPS57168770A (en) 1981-04-09 1981-04-09 Controlling method for crater treatment of tig welding

Country Status (1)

Country Link
JP (1) JPS57168770A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010066263A (en) * 1999-12-31 2001-07-11 신영균 Welding device for preventing crater automatically
WO2002032610A3 (en) * 2000-10-17 2002-10-24 Fronius Schweissmasch Prod Method for the control and/or regulation of a welding process

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010066263A (en) * 1999-12-31 2001-07-11 신영균 Welding device for preventing crater automatically
WO2002032610A3 (en) * 2000-10-17 2002-10-24 Fronius Schweissmasch Prod Method for the control and/or regulation of a welding process
US6930280B2 (en) 2000-10-17 2005-08-16 Fronius International Gmbh Method for the control and/or regulation of a welding process
CN1326003C (en) * 2000-10-17 2007-07-11 弗罗纽斯国际有限公司 Method for the control and/or regulation of a welding process

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