GB652289A - Method and apparatus for electric welding pipe - Google Patents

Method and apparatus for electric welding pipe

Info

Publication number
GB652289A
GB652289A GB5464/48A GB546448A GB652289A GB 652289 A GB652289 A GB 652289A GB 5464/48 A GB5464/48 A GB 5464/48A GB 546448 A GB546448 A GB 546448A GB 652289 A GB652289 A GB 652289A
Authority
GB
United Kingdom
Prior art keywords
dies
bell
electric welding
blank
seam
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.)
Expired
Application number
GB5464/48A
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.)
Fed Machine & Welder Co
Original Assignee
Fed Machine & Welder Co
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 Fed Machine & Welder Co filed Critical Fed Machine & Welder Co
Publication of GB652289A publication Critical patent/GB652289A/en
Expired 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
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/08—Seam welding not restricted to one of the preceding subgroups
    • B23K11/087—Seam welding not restricted to one of the preceding subgroups for rectilinear seams
    • B23K11/0873—Seam welding not restricted to one of the preceding subgroups for rectilinear seams of the longitudinal seam of tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Abstract

652,289. Making tubes. FEDERAL MACHINE & WELDER CO. Feb. 24, 1948, No. 5464. Convention date, April 29, 1946. [Classes 83 (ii) and 83 (iv)] Drawing ; drawing- dies; electric welding.- In making welded tubing a cylindrical blank 3 with a longitudinal seam 7 is drawn through a long combined skelping and electric welding die 1 to upset the seam and then through a sizing die 2 for a final upsetting to relieve stresses due to the release of the blank 3 from the bell 1 and thermal contraction adjacent the seam. The resistance welding electrodes 4, Fig. 3, are inset over the full length of the bell 1. The sizing die 2 is profiled to accommodate the weld bead and may be combined with the bell and separated therefrom by insulation. The blanks are metal sheet rolled or pressed to cylindrical form and in a modification are pushed through the dies. A separator 14 engages between the blank edges to align it with the dies.
GB5464/48A 1946-04-29 1948-02-24 Method and apparatus for electric welding pipe Expired GB652289A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US652289XA 1946-04-29 1946-04-29

Publications (1)

Publication Number Publication Date
GB652289A true GB652289A (en) 1951-04-18

Family

ID=22061224

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5464/48A Expired GB652289A (en) 1946-04-29 1948-02-24 Method and apparatus for electric welding pipe

Country Status (1)

Country Link
GB (1) GB652289A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114406534A (en) * 2022-01-20 2022-04-29 燕山大学 Thick-wall pipeline welding seam multistage heating device and heating method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114406534A (en) * 2022-01-20 2022-04-29 燕山大学 Thick-wall pipeline welding seam multistage heating device and heating method
CN114406534B (en) * 2022-01-20 2022-11-04 燕山大学 Thick-wall pipeline welding seam multistage heating device and heating method

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