JPS57168773A - Short circuit transfer arc welding machine - Google Patents

Short circuit transfer arc welding machine

Info

Publication number
JPS57168773A
JPS57168773A JP5393481A JP5393481A JPS57168773A JP S57168773 A JPS57168773 A JP S57168773A JP 5393481 A JP5393481 A JP 5393481A JP 5393481 A JP5393481 A JP 5393481A JP S57168773 A JPS57168773 A JP S57168773A
Authority
JP
Japan
Prior art keywords
short circuit
circuit
period
voltage
arc
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
JP5393481A
Other languages
Japanese (ja)
Inventor
Shigeo Eguri
Yoichiro Tabata
Masatake Hiramoto
Koji Mizuno
Hirohisa Segawa
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP5393481A priority Critical patent/JPS57168773A/en
Publication of JPS57168773A publication Critical patent/JPS57168773A/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
    • B23K9/06—Arrangements or circuits for starting the arc, e.g. by generating ignition voltage, or for stabilising the arc
    • B23K9/073—Stabilising the arc

Abstract

PURPOSE:To reduce the variances in the periods from short circuit to short circuit and to improve welding speed in a short circuit transfer type arc welding machine by controlling the period for conduction of arc current within the prescribed time limit. CONSTITUTION:Voltage is applied between a wire 1 and base metals 2 with an auxiliary electric powr source 27, and the voltage of that time is detected with a detector 9, whereby the presence or absence of the contact between the wire 1 and the metals 2 is detected. The detected value V is compared with the voltage V0 corresponding to short circuit and the voltage Va corresponding to arc in comparators 10, 11, and when V>=Va, it is inputted to a delay circuit 12, which inputs the time delay between the input and output voltage waveforms as an off signal to a pulse generating circuit 131 and as an on signal to a pulse generating circuit 132. At this time, the output of an electric charge quantity selecting circuit 22 is inputted to a period setting circuit 23, by which the short circuit period as the inverse number of the short circuit times is determined, and the time limit subtracting the portion for the short circuit period from said value is determined. The conduction period of the arc current is controlled within this time limit, whereby the arc is stabilized.
JP5393481A 1981-04-10 1981-04-10 Short circuit transfer arc welding machine Pending JPS57168773A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5393481A JPS57168773A (en) 1981-04-10 1981-04-10 Short circuit transfer arc welding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5393481A JPS57168773A (en) 1981-04-10 1981-04-10 Short circuit transfer arc welding machine

Publications (1)

Publication Number Publication Date
JPS57168773A true JPS57168773A (en) 1982-10-18

Family

ID=12956565

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5393481A Pending JPS57168773A (en) 1981-04-10 1981-04-10 Short circuit transfer arc welding machine

Country Status (1)

Country Link
JP (1) JPS57168773A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60106673A (en) * 1983-11-12 1985-06-12 Kobe Steel Ltd Method of controlling output of welding power source
EP1570937A3 (en) * 2004-02-23 2008-01-02 Lincoln Global, Inc. Short circuit arc welder and method of controlling same
JP2008012580A (en) * 2006-07-07 2008-01-24 Komatsu Ltd Control method for arc welding machine, and arc welding machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS558396A (en) * 1978-05-30 1980-01-21 Thermal Dynamics Corp Shorttcircuit arc welder

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS558396A (en) * 1978-05-30 1980-01-21 Thermal Dynamics Corp Shorttcircuit arc welder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60106673A (en) * 1983-11-12 1985-06-12 Kobe Steel Ltd Method of controlling output of welding power source
JPH0431788B2 (en) * 1983-11-12 1992-05-27
EP1570937A3 (en) * 2004-02-23 2008-01-02 Lincoln Global, Inc. Short circuit arc welder and method of controlling same
JP2008012580A (en) * 2006-07-07 2008-01-24 Komatsu Ltd Control method for arc welding machine, and arc welding machine

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