FR2144049A5 - Tubing mfr - by milling the edges of half shells then con acting the edges and welding - Google Patents

Tubing mfr - by milling the edges of half shells then con acting the edges and welding

Info

Publication number
FR2144049A5
FR2144049A5 FR7123723A FR7123723A FR2144049A5 FR 2144049 A5 FR2144049 A5 FR 2144049A5 FR 7123723 A FR7123723 A FR 7123723A FR 7123723 A FR7123723 A FR 7123723A FR 2144049 A5 FR2144049 A5 FR 2144049A5
Authority
FR
France
Prior art keywords
edges
tubing
welding
mfr
half shells
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
FR7123723A
Other languages
French (fr)
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR7123723A priority Critical patent/FR2144049A5/en
Application granted granted Critical
Publication of FR2144049A5 publication Critical patent/FR2144049A5/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
    • 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
    • B21C37/0815—Making tubes with welded or soldered seams without continuous longitudinal movement of the sheet during the bending operation

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

Tubes are produced from half shells pref. into complementary sections by positioning the shells around an expansible mandrel and holding them in position by clamping them. By expanding the mandrel the facing shells can be moved apart and the edges can be milled. Upon retraction of the mandrel and tightening of the clamps the tubes are contacted and welding is effected. The method ensures the production of tubing without any internal stresses.
FR7123723A 1971-06-29 1971-06-29 Tubing mfr - by milling the edges of half shells then con acting the edges and welding Expired FR2144049A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7123723A FR2144049A5 (en) 1971-06-29 1971-06-29 Tubing mfr - by milling the edges of half shells then con acting the edges and welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7123723A FR2144049A5 (en) 1971-06-29 1971-06-29 Tubing mfr - by milling the edges of half shells then con acting the edges and welding

Publications (1)

Publication Number Publication Date
FR2144049A5 true FR2144049A5 (en) 1973-02-09

Family

ID=9079520

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7123723A Expired FR2144049A5 (en) 1971-06-29 1971-06-29 Tubing mfr - by milling the edges of half shells then con acting the edges and welding

Country Status (1)

Country Link
FR (1) FR2144049A5 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2320806A1 (en) * 1975-07-19 1977-03-11 Fricke Theodor Fa Making solder lap jointed metal tube - by bending sheet around core, applying solder and flux, then heated and cooled pressure elements
US4487356A (en) * 1981-06-08 1984-12-11 Gg. Noell Gmbh. Device having expandable mandrel for making nuclear fuel element storage tubes
WO1999067037A1 (en) * 1998-06-23 1999-12-29 Thyssen Krupp Stahl Ag Method and device for producing straight bead welded pipes from flat sheet metal blanks
EP1371429A1 (en) * 2002-06-12 2003-12-17 Kratzmaier Konstruktionen GmbH Device for the manufacture of tubes
WO2014001408A1 (en) * 2012-06-30 2014-01-03 Sms Meer Gmbh System for stitch welding in the production of seam heat sealed pipes made of sheet panels

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2320806A1 (en) * 1975-07-19 1977-03-11 Fricke Theodor Fa Making solder lap jointed metal tube - by bending sheet around core, applying solder and flux, then heated and cooled pressure elements
US4487356A (en) * 1981-06-08 1984-12-11 Gg. Noell Gmbh. Device having expandable mandrel for making nuclear fuel element storage tubes
WO1999067037A1 (en) * 1998-06-23 1999-12-29 Thyssen Krupp Stahl Ag Method and device for producing straight bead welded pipes from flat sheet metal blanks
US6494360B1 (en) * 1998-06-23 2002-12-17 Thyssen Krupp Stahl Ag Method and device for producing straight bead welded pipes from flat sheet metal blanks
EP1371429A1 (en) * 2002-06-12 2003-12-17 Kratzmaier Konstruktionen GmbH Device for the manufacture of tubes
WO2014001408A1 (en) * 2012-06-30 2014-01-03 Sms Meer Gmbh System for stitch welding in the production of seam heat sealed pipes made of sheet panels

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Legal Events

Date Code Title Description
ST Notification of lapse