GB1439787A - Tube production - Google Patents

Tube production

Info

Publication number
GB1439787A
GB1439787A GB4802973A GB4802973A GB1439787A GB 1439787 A GB1439787 A GB 1439787A GB 4802973 A GB4802973 A GB 4802973A GB 4802973 A GB4802973 A GB 4802973A GB 1439787 A GB1439787 A GB 1439787A
Authority
GB
United Kingdom
Prior art keywords
blank
welding
tube
oct
extensions
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
GB4802973A
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.)
Vodafone GmbH
Original Assignee
Mannesmannroehren Werke 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 Mannesmannroehren Werke AG filed Critical Mannesmannroehren Werke AG
Publication of GB1439787A publication Critical patent/GB1439787A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/083—Supply, or operations combined with supply, of strip material
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

1439787 Making tubes; welding by fusion MANNESMANNROHREN - WERKE AG 15 Oct 1973 [20 Oct 1972] 48029/73 Headings B3A and B3R A blank for a longitudinally seamed welded tube is provided with a recess 15 at each end so that substantially identical extensions 7, 8 of the blank are provided which are cut-off when the blank is bent into a tube. The extensions 7, 8 provide areas where the welding of the blank can be started and finished and wherein the weld may be incomplete or cratered. The blank is initially back welded together and then fully welded internally and/or externally, e.g. by arc welding.
GB4802973A 1972-10-20 1973-10-15 Tube production Expired GB1439787A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722252306 DE2252306A1 (en) 1972-10-20 1972-10-20 PROCESS FOR PRODUCING A LONGITUDINAL SEAM-WELDED PIPE

Publications (1)

Publication Number Publication Date
GB1439787A true GB1439787A (en) 1976-06-16

Family

ID=5860026

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4802973A Expired GB1439787A (en) 1972-10-20 1973-10-15 Tube production

Country Status (6)

Country Link
JP (1) JPS4987560A (en)
CA (1) CA988754A (en)
DE (1) DE2252306A1 (en)
FR (1) FR2203684B1 (en)
GB (1) GB1439787A (en)
IT (1) IT995788B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4764657A (en) * 1986-03-31 1988-08-16 Sumitomo Metal Industries, Ltd. Automatic tab plate welding apparatus

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2708364C3 (en) * 1977-02-23 1981-07-09 Mannesmann AG, 4000 Düsseldorf Procedures for Avoiding Final Defects
JP2616691B2 (en) * 1994-03-14 1997-06-04 トヨタ自動車株式会社 Manufacturing method of collective blank for press molding and collective blank
FR3136362A1 (en) 2022-06-14 2023-12-15 Institut Mines Telecom Instrumented scleral lens and associated device, embedded in the lens or not, for measuring the pupil diameter of an eye.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4764657A (en) * 1986-03-31 1988-08-16 Sumitomo Metal Industries, Ltd. Automatic tab plate welding apparatus

Also Published As

Publication number Publication date
FR2203684A1 (en) 1974-05-17
JPS4987560A (en) 1974-08-21
IT995788B (en) 1975-11-20
DE2252306A1 (en) 1974-05-02
CA988754A (en) 1976-05-11
FR2203684B1 (en) 1977-09-09

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee