JPS57130773A - Pulse arc welding machine - Google Patents

Pulse arc welding machine

Info

Publication number
JPS57130773A
JPS57130773A JP1477881A JP1477881A JPS57130773A JP S57130773 A JPS57130773 A JP S57130773A JP 1477881 A JP1477881 A JP 1477881A JP 1477881 A JP1477881 A JP 1477881A JP S57130773 A JPS57130773 A JP S57130773A
Authority
JP
Japan
Prior art keywords
current
arc
decrease
capacitor
pulse
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
JP1477881A
Other languages
Japanese (ja)
Inventor
Shigeo Eguri
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 JP1477881A priority Critical patent/JPS57130773A/en
Publication of JPS57130773A publication Critical patent/JPS57130773A/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
    • B23K9/09—Arrangements or circuits for arc welding with pulsed current or voltage
    • B23K9/091—Arrangements or circuits for arc welding with pulsed current or voltage characterised by the circuits

Landscapes

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

Abstract

PURPOSE:To reduce the arc sounds generated on account of abrupt increase or decrease in arc current in pulse arc welding by connecting a charging capacitor in parallel to a flywheel diode connected to the output side of a switching element for pulse current. CONSTITUTION:At the sam instant of feeding a wire 1 to the direction of base metals 2, DC electric current is supplied through a rectifier circuit 5 and a base circuit 6 and further pulse current is supplied by driving a switching element 7. After the element 7 goes on, the current rises quickly but part thereof charges a capacitor 12 and therefore the rise thereof is gentle. After the element 7 goes off upon arriving of the current value at a prescribed value, the current decreases successively, but the electric charge accumulated in the capacitor 12 is released and therefore the degree of the decrease in the current is relatively gentle. Thereby, the arc sounds generated by the abrupt increase or decrease in the current are reduced.
JP1477881A 1981-02-03 1981-02-03 Pulse arc welding machine Pending JPS57130773A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1477881A JPS57130773A (en) 1981-02-03 1981-02-03 Pulse arc welding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1477881A JPS57130773A (en) 1981-02-03 1981-02-03 Pulse arc welding machine

Publications (1)

Publication Number Publication Date
JPS57130773A true JPS57130773A (en) 1982-08-13

Family

ID=11870504

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1477881A Pending JPS57130773A (en) 1981-02-03 1981-02-03 Pulse arc welding machine

Country Status (1)

Country Link
JP (1) JPS57130773A (en)

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