IT1093200B - PROCEDURE TO AVOID INITIAL DEFECTS IN LONGITUDINAL CORD WELDING OF TUBES BY MULTIPLE WIRE-ELECTRODES - Google Patents

PROCEDURE TO AVOID INITIAL DEFECTS IN LONGITUDINAL CORD WELDING OF TUBES BY MULTIPLE WIRE-ELECTRODES

Info

Publication number
IT1093200B
IT1093200B IT20987/78A IT2098778A IT1093200B IT 1093200 B IT1093200 B IT 1093200B IT 20987/78 A IT20987/78 A IT 20987/78A IT 2098778 A IT2098778 A IT 2098778A IT 1093200 B IT1093200 B IT 1093200B
Authority
IT
Italy
Prior art keywords
tubes
electrodes
procedure
multiple wire
initial defects
Prior art date
Application number
IT20987/78A
Other languages
Italian (it)
Other versions
IT7820987A0 (en
Inventor
Karl Heinz Papierok
Marian Michael Mursic
Original Assignee
Mannesmann Ag
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 Mannesmann Ag filed Critical Mannesmann Ag
Publication of IT7820987A0 publication Critical patent/IT7820987A0/en
Application granted granted Critical
Publication of IT1093200B publication Critical patent/IT1093200B/en

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
    • B23K9/02—Seam welding; Backing means; Inserts
    • B23K9/025—Seam welding; Backing means; Inserts for rectilinear seams
    • B23K9/0253—Seam welding; Backing means; Inserts for rectilinear seams for the longitudinal seam of tubes
    • 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
    • B23K9/02—Seam welding; Backing means; Inserts
    • B23K9/0203—Inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding In General (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
IT20987/78A 1977-03-09 1978-03-09 PROCEDURE TO AVOID INITIAL DEFECTS IN LONGITUDINAL CORD WELDING OF TUBES BY MULTIPLE WIRE-ELECTRODES IT1093200B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2710713A DE2710713C3 (en) 1977-03-09 1977-03-09 Procedure for avoiding initial errors in multi-wire longitudinal seam welding of pipes

Publications (2)

Publication Number Publication Date
IT7820987A0 IT7820987A0 (en) 1978-03-09
IT1093200B true IT1093200B (en) 1985-07-19

Family

ID=6003407

Family Applications (1)

Application Number Title Priority Date Filing Date
IT20987/78A IT1093200B (en) 1977-03-09 1978-03-09 PROCEDURE TO AVOID INITIAL DEFECTS IN LONGITUDINAL CORD WELDING OF TUBES BY MULTIPLE WIRE-ELECTRODES

Country Status (5)

Country Link
JP (1) JPS53110950A (en)
DE (1) DE2710713C3 (en)
FR (1) FR2382969A1 (en)
GB (1) GB1597042A (en)
IT (1) IT1093200B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62230478A (en) * 1986-03-31 1987-10-09 Sumitomo Metal Ind Ltd Automatic tab plate welding device
US6568077B1 (en) 2000-05-11 2003-05-27 General Electric Company Blisk weld repair

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2564396A (en) * 1949-11-01 1951-08-14 Republic Steel Corp Seam welding procedure for pipe manufacture
DE2609201C3 (en) * 1976-03-05 1979-07-19 Kobe Steel Ltd., Kobe, Hyogo (Japan) Process for preventing end crater cracks when arc welding butt welds through welding plates

Also Published As

Publication number Publication date
GB1597042A (en) 1981-09-03
DE2710713A1 (en) 1978-09-14
IT7820987A0 (en) 1978-03-09
JPS53110950A (en) 1978-09-28
DE2710713B2 (en) 1980-03-13
DE2710713C3 (en) 1980-12-04
FR2382969B1 (en) 1982-02-19
FR2382969A1 (en) 1978-10-06

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