JPS57154373A - Arc welding machine - Google Patents

Arc welding machine

Info

Publication number
JPS57154373A
JPS57154373A JP3869181A JP3869181A JPS57154373A JP S57154373 A JPS57154373 A JP S57154373A JP 3869181 A JP3869181 A JP 3869181A JP 3869181 A JP3869181 A JP 3869181A JP S57154373 A JPS57154373 A JP S57154373A
Authority
JP
Japan
Prior art keywords
time
output voltage
welding
wire feeding
point
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
JP3869181A
Other languages
Japanese (ja)
Other versions
JPH0249830B2 (en
Inventor
Hirobumi Nomura
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.)
Via Mechanics Ltd
Original Assignee
Hitachi Seiko 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 Seiko Ltd filed Critical Hitachi Seiko Ltd
Priority to JP3869181A priority Critical patent/JPS57154373A/en
Publication of JPS57154373A publication Critical patent/JPS57154373A/en
Publication of JPH0249830B2 publication Critical patent/JPH0249830B2/ja
Granted 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 Control (AREA)

Abstract

PURPOSE:To suppress the growth of the spherical globule at the leading end of a wire at the end of welding and to make the next arc starting sure by stopping power feed to a motor for wire feeding then changing and controlling the output voltage of a welding electric power source in two stages. CONSTITUTION:At the end of welding, first a motor 21 for wire feeding is stopped by a motor stop command at the point of the time t'1. Thence, the firing of thyristors 14a, 14b is stopped at the point of the time t'2 before the wire feeding stops with delay by a constant time T1. Further, an electromagnetic switch 23 on the input side of the welding power source is opened at the point of the time t'3 after the stopping of the wire feeding with delay by a constant time T2. As a result, in the period from the time t'1 till t'2, the arc 20 is maintained by the combined voltage of thyristor output voltage VS and diode output voltage VD', and after this, in the period from the t'2 till t'3, the arc 20 is maintained only by the diode output voltage VD.
JP3869181A 1981-03-19 1981-03-19 Arc welding machine Granted JPS57154373A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3869181A JPS57154373A (en) 1981-03-19 1981-03-19 Arc welding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3869181A JPS57154373A (en) 1981-03-19 1981-03-19 Arc welding machine

Publications (2)

Publication Number Publication Date
JPS57154373A true JPS57154373A (en) 1982-09-24
JPH0249830B2 JPH0249830B2 (en) 1990-10-31

Family

ID=12532317

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3869181A Granted JPS57154373A (en) 1981-03-19 1981-03-19 Arc welding machine

Country Status (1)

Country Link
JP (1) JPS57154373A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57202976A (en) * 1981-06-09 1982-12-13 Daihen Corp Consumable electrode type arc welding machine
JP2004050202A (en) * 2002-07-17 2004-02-19 Hitachi Via Mechanics Ltd Consumable electrode type arc spot welding method and consumable electrode type arc welding equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5047847A (en) * 1973-08-31 1975-04-28
JPS5296949A (en) * 1976-02-10 1977-08-15 Osaka Denki Co Ltd Dc arc welding machine
JPS52146747A (en) * 1976-05-31 1977-12-06 Matsushita Electric Ind Co Ltd Dc arc welding
JPS5366845A (en) * 1976-11-26 1978-06-14 Mitsubishi Electric Corp Dc arc welding machine
JPS5433002U (en) * 1977-08-08 1979-03-03

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5047847A (en) * 1973-08-31 1975-04-28
JPS5296949A (en) * 1976-02-10 1977-08-15 Osaka Denki Co Ltd Dc arc welding machine
JPS52146747A (en) * 1976-05-31 1977-12-06 Matsushita Electric Ind Co Ltd Dc arc welding
JPS5366845A (en) * 1976-11-26 1978-06-14 Mitsubishi Electric Corp Dc arc welding machine
JPS5433002U (en) * 1977-08-08 1979-03-03

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57202976A (en) * 1981-06-09 1982-12-13 Daihen Corp Consumable electrode type arc welding machine
JP2004050202A (en) * 2002-07-17 2004-02-19 Hitachi Via Mechanics Ltd Consumable electrode type arc spot welding method and consumable electrode type arc welding equipment
JP4646483B2 (en) * 2002-07-17 2011-03-09 日立ビアメカニクス株式会社 Consumable electrode type arc spot welding method and consumable electrode type arc welding apparatus

Also Published As

Publication number Publication date
JPH0249830B2 (en) 1990-10-31

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