JPS57171576A - Melt working by arc - Google Patents

Melt working by arc

Info

Publication number
JPS57171576A
JPS57171576A JP5591381A JP5591381A JPS57171576A JP S57171576 A JPS57171576 A JP S57171576A JP 5591381 A JP5591381 A JP 5591381A JP 5591381 A JP5591381 A JP 5591381A JP S57171576 A JPS57171576 A JP S57171576A
Authority
JP
Japan
Prior art keywords
circuit
voltage
arc
power source
working
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
JP5591381A
Other languages
Japanese (ja)
Inventor
Minoru Shimada
Shunsaku Onishi
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 JP5591381A priority Critical patent/JPS57171576A/en
Publication of JPS57171576A publication Critical patent/JPS57171576A/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

Landscapes

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

Abstract

PURPOSE:To make contact cutting and automatic cutting possible without damaging parts in melt working used both for TIG arc melt working and plasma melt working by supplying or stopping the output of an auxiliary circuit in parallel with a main power source circuit. CONSTITUTION:First, the voltage setter in a limiting device 15 is set on a low voltage side by opening the change-over circuit 24 of an auxiliary voltage circuit 20. At the starting, a torch is progressed while a pilot arc is generated by an electric power source 11, and a plasma main arc (a) is generated by applying the main power source. When the current detection signal thereof is applied to the device 15, the voltage setter of the device 15 is set to a high voltage side instantaneously or after lapse of a prescribed time, whereby plasma working is effected. In the stage of TIG welding, the torch is replaced, and the start voltage is set at a high voltage, thence the circuit 24 of the circuit 20 is closed to apply an auxiliary voltage (high voltage) between an electrode 3 and the work 5, whereby the electrode 3 is quickly heated to generate the arc easily.
JP5591381A 1981-04-14 1981-04-14 Melt working by arc Pending JPS57171576A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5591381A JPS57171576A (en) 1981-04-14 1981-04-14 Melt working by arc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5591381A JPS57171576A (en) 1981-04-14 1981-04-14 Melt working by arc

Publications (1)

Publication Number Publication Date
JPS57171576A true JPS57171576A (en) 1982-10-22

Family

ID=13012345

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5591381A Pending JPS57171576A (en) 1981-04-14 1981-04-14 Melt working by arc

Country Status (1)

Country Link
JP (1) JPS57171576A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55103278A (en) * 1979-02-01 1980-08-07 Air Liquide Method and installation for automatically igniting plasma cutting torch

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55103278A (en) * 1979-02-01 1980-08-07 Air Liquide Method and installation for automatically igniting plasma cutting torch

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