GB1478646A - Method and device for necking out pipes - Google Patents

Method and device for necking out pipes

Info

Publication number
GB1478646A
GB1478646A GB38190/74A GB3819074A GB1478646A GB 1478646 A GB1478646 A GB 1478646A GB 38190/74 A GB38190/74 A GB 38190/74A GB 3819074 A GB3819074 A GB 3819074A GB 1478646 A GB1478646 A GB 1478646A
Authority
GB
United Kingdom
Prior art keywords
mandrel
pipe
milling
die
stand
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
GB38190/74A
Other languages
English (en)
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.)
Messer Griesheim GmbH
Original Assignee
Messer Griesheim GmbH
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
Priority claimed from DE19732343981 external-priority patent/DE2343981C3/de
Application filed by Messer Griesheim GmbH filed Critical Messer Griesheim GmbH
Publication of GB1478646A publication Critical patent/GB1478646A/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
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/29—Making branched pieces, e.g. T-pieces
    • B21C37/298—Forming collars by flow-drilling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
GB38190/74A 1973-08-31 1974-09-02 Method and device for necking out pipes Expired GB1478646A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732343981 DE2343981C3 (de) 1973-08-31 Ziehdorn zum Aushalsen von Rohren

Publications (1)

Publication Number Publication Date
GB1478646A true GB1478646A (en) 1977-07-06

Family

ID=5891278

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38190/74A Expired GB1478646A (en) 1973-08-31 1974-09-02 Method and device for necking out pipes

Country Status (4)

Country Link
JP (1) JPS5051465A (fr)
FR (1) FR2245431B3 (fr)
GB (1) GB1478646A (fr)
SE (1) SE409555B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6021571A (en) * 1996-02-27 2000-02-08 Kathrin Witulski Apparatus for forming collars in workpieces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6021571A (en) * 1996-02-27 2000-02-08 Kathrin Witulski Apparatus for forming collars in workpieces

Also Published As

Publication number Publication date
DE2343981A1 (de) 1975-03-20
DE2343981B2 (de) 1975-10-02
FR2245431A1 (fr) 1975-04-25
JPS5051465A (fr) 1975-05-08
SE409555B (sv) 1979-08-27
SE7411023L (fr) 1975-03-03
FR2245431B3 (fr) 1980-01-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee