JPS57199569A - Suppressing method for convection behind molten metal in high speed arc welding - Google Patents

Suppressing method for convection behind molten metal in high speed arc welding

Info

Publication number
JPS57199569A
JPS57199569A JP8416681A JP8416681A JPS57199569A JP S57199569 A JPS57199569 A JP S57199569A JP 8416681 A JP8416681 A JP 8416681A JP 8416681 A JP8416681 A JP 8416681A JP S57199569 A JPS57199569 A JP S57199569A
Authority
JP
Japan
Prior art keywords
welding
high speed
electrode
convection
generating
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
JP8416681A
Other languages
Japanese (ja)
Inventor
Hiroichi Nomura
Yuji Sugitani
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP8416681A priority Critical patent/JPS57199569A/en
Publication of JPS57199569A publication Critical patent/JPS57199569A/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
    • B23K9/08—Arrangements or circuits for magnetic control of the arc

Landscapes

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

Abstract

PURPOSE:To suppress titled convection and to improve the upper speed boundary high speed welding by locating an electromagnet which has a coil of a cable connected from an earthing plate to an earth point always below the molten pool and generating electromagnetic force in a welding advance direction. CONSTITUTION:In high speed arc welding which progresses welding while generating arcs by flowing earth current from a welding electrode 12 to metallic base materials 11 to be welded, an earthing plate 13 is kept located always below the electrode 12. Therefore, the earth current flows always in the direction right under the molten pool A as shown by solid arrows, and flows through the electrode 12 the materials 11 the plate 13 a cable 17 an earth terminal, thereby generating the magnetic field penetrating therough the materials 11 and the pool A between both magnetic electrodes of an iron core 14. The electromagnetic force in the same direction as the welding advance direction is generated as shown by blanked arrows by said magnetic field, whereby the plasma flow is suppressed and the convection behind the molten metal is suppressed well. Therefore, in spite of an increase in the upper speed boundary of the high speed welding, the possibility of undercutting is eliminated.
JP8416681A 1981-06-01 1981-06-01 Suppressing method for convection behind molten metal in high speed arc welding Pending JPS57199569A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8416681A JPS57199569A (en) 1981-06-01 1981-06-01 Suppressing method for convection behind molten metal in high speed arc welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8416681A JPS57199569A (en) 1981-06-01 1981-06-01 Suppressing method for convection behind molten metal in high speed arc welding

Publications (1)

Publication Number Publication Date
JPS57199569A true JPS57199569A (en) 1982-12-07

Family

ID=13822902

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8416681A Pending JPS57199569A (en) 1981-06-01 1981-06-01 Suppressing method for convection behind molten metal in high speed arc welding

Country Status (1)

Country Link
JP (1) JPS57199569A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023016860A1 (en) * 2021-08-13 2023-02-16 Bundesrepublik Deutschland, Vertreten Durch Den Bundesminister Für Wirtschaft Und Energie, Dieser Vertreten Durch Den Präsidenten Der Bundesanstalt Für Materialforschung Und -Prüfung, (Bam) Use of an oscillating magnetic field as a weld pool support for arc welding methods

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023016860A1 (en) * 2021-08-13 2023-02-16 Bundesrepublik Deutschland, Vertreten Durch Den Bundesminister Für Wirtschaft Und Energie, Dieser Vertreten Durch Den Präsidenten Der Bundesanstalt Für Materialforschung Und -Prüfung, (Bam) Use of an oscillating magnetic field as a weld pool support for arc welding methods

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