JPS55120484A - Method and apparatus for nonconsumable electrode alternating current arc welding - Google Patents

Method and apparatus for nonconsumable electrode alternating current arc welding

Info

Publication number
JPS55120484A
JPS55120484A JP2911379A JP2911379A JPS55120484A JP S55120484 A JPS55120484 A JP S55120484A JP 2911379 A JP2911379 A JP 2911379A JP 2911379 A JP2911379 A JP 2911379A JP S55120484 A JPS55120484 A JP S55120484A
Authority
JP
Japan
Prior art keywords
welding
value
positive
current
alternating current
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.)
Granted
Application number
JP2911379A
Other languages
Japanese (ja)
Other versions
JPS6257431B2 (en
Inventor
Hideyuki Yamamoto
Shoji Harada
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.)
Daihen Corp
Original Assignee
Daihen Corp
Osaka Transformer Co 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 Daihen Corp, Osaka Transformer Co Ltd filed Critical Daihen Corp
Priority to JP2911379A priority Critical patent/JPS55120484A/en
Publication of JPS55120484A publication Critical patent/JPS55120484A/en
Publication of JPS6257431B2 publication Critical patent/JPS6257431B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To eliminate the abnormal consumption of tungsten electrode at all and prevent the degradation in the mechanical properties of deposited metal making the positive polarity current ratio in total welding current small at the welding start, thereafter increasing the same continuously or stepwise and making the same to a normal value at the specified time.
CONSTITUTION: At the start of TIG welding of Al, Mg base materials, for example, positive and opposite polarity currents ISP, IRP are changed as shown in the figure. If the switch 2 of an AC power supply 1 is closed to this end at the welding start, current limiting elements 6, 7 conduct at the value having been set by a variable resistors 18 (set lower), 15. Then, the specified positive and opposite polarity currents flow and the former becomes of a smaller value. At the fixed time after the welding start, the contacts 20a, 20b close and open so that the positive polarity current is changed over to the normal welding current value having been set by a variable resistor 19.
COPYRIGHT: (C)1980,JPO&Japio
JP2911379A 1979-03-12 1979-03-12 Method and apparatus for nonconsumable electrode alternating current arc welding Granted JPS55120484A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2911379A JPS55120484A (en) 1979-03-12 1979-03-12 Method and apparatus for nonconsumable electrode alternating current arc welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2911379A JPS55120484A (en) 1979-03-12 1979-03-12 Method and apparatus for nonconsumable electrode alternating current arc welding

Publications (2)

Publication Number Publication Date
JPS55120484A true JPS55120484A (en) 1980-09-16
JPS6257431B2 JPS6257431B2 (en) 1987-12-01

Family

ID=12267257

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2911379A Granted JPS55120484A (en) 1979-03-12 1979-03-12 Method and apparatus for nonconsumable electrode alternating current arc welding

Country Status (1)

Country Link
JP (1) JPS55120484A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004082163A (en) * 2002-08-27 2004-03-18 Sansha Electric Mfg Co Ltd Welding method and electric power unit for welding
CN102101208A (en) * 2009-12-17 2011-06-22 株式会社大亨 Arc welding method, arc welding robot control device and arc welding system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53149147A (en) * 1977-06-02 1978-12-26 Matsushita Electric Ind Co Ltd Tig welding method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53149147A (en) * 1977-06-02 1978-12-26 Matsushita Electric Ind Co Ltd Tig welding method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004082163A (en) * 2002-08-27 2004-03-18 Sansha Electric Mfg Co Ltd Welding method and electric power unit for welding
JP4643113B2 (en) * 2002-08-27 2011-03-02 株式会社三社電機製作所 Welding method and power supply device for welding
CN102101208A (en) * 2009-12-17 2011-06-22 株式会社大亨 Arc welding method, arc welding robot control device and arc welding system
JP2011152545A (en) * 2009-12-17 2011-08-11 Daihen Corp Arc welding method

Also Published As

Publication number Publication date
JPS6257431B2 (en) 1987-12-01

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