DE2326901A1 - Verfahren zur herstellung von zylindrischen oder konischen rohren sowie vorrichtung zur durchfuehrung dieses verfahrens - Google Patents

Verfahren zur herstellung von zylindrischen oder konischen rohren sowie vorrichtung zur durchfuehrung dieses verfahrens

Info

Publication number
DE2326901A1
DE2326901A1 DE19732326901 DE2326901A DE2326901A1 DE 2326901 A1 DE2326901 A1 DE 2326901A1 DE 19732326901 DE19732326901 DE 19732326901 DE 2326901 A DE2326901 A DE 2326901A DE 2326901 A1 DE2326901 A1 DE 2326901A1
Authority
DE
Germany
Prior art keywords
mandrel
rollers
deformed
plate
tubes
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
DE19732326901
Other languages
German (de)
English (en)
Inventor
Pier Paolo Parma
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of DE2326901A1 publication Critical patent/DE2326901A1/de
Pending 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
    • 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
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/16—Making tubes with varying diameter in longitudinal direction
    • B21C37/18—Making tubes with varying diameter in longitudinal direction conical tubes
    • B21C37/185—Making tubes with varying diameter in longitudinal direction conical tubes starting from sheet material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
DE19732326901 1972-05-26 1973-05-25 Verfahren zur herstellung von zylindrischen oder konischen rohren sowie vorrichtung zur durchfuehrung dieses verfahrens Pending DE2326901A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2492672A IT955915B (it) 1972-05-26 1972-05-26 Procedimento per la fabbricazione di elementi tubolari allungati a forma tronco conica o tronco pira midale da lastra metallica in lun ghezza finita o dispositivo pr la sua attuazione

Publications (1)

Publication Number Publication Date
DE2326901A1 true DE2326901A1 (de) 1973-12-13

Family

ID=11215155

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19732326901 Pending DE2326901A1 (de) 1972-05-26 1973-05-25 Verfahren zur herstellung von zylindrischen oder konischen rohren sowie vorrichtung zur durchfuehrung dieses verfahrens

Country Status (2)

Country Link
DE (1) DE2326901A1 (it)
IT (1) IT955915B (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3220029A1 (de) * 1981-05-29 1983-01-20 Nippon Steel Corp Verfahren zum herstellen von elektrisch geschweissten rohren

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3220029A1 (de) * 1981-05-29 1983-01-20 Nippon Steel Corp Verfahren zum herstellen von elektrisch geschweissten rohren

Also Published As

Publication number Publication date
IT955915B (it) 1973-09-29

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