GB2006075A - Process and apparatus for moulding hollow members sealed off at one end - Google Patents

Process and apparatus for moulding hollow members sealed off at one end

Info

Publication number
GB2006075A
GB2006075A GB7838005A GB7838005A GB2006075A GB 2006075 A GB2006075 A GB 2006075A GB 7838005 A GB7838005 A GB 7838005A GB 7838005 A GB7838005 A GB 7838005A GB 2006075 A GB2006075 A GB 2006075A
Authority
GB
United Kingdom
Prior art keywords
hollow members
members sealed
moulding hollow
dolly
mandrel
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.)
Granted
Application number
GB7838005A
Other versions
GB2006075B (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.)
Vodafone GmbH
Original Assignee
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Publication of GB2006075A publication Critical patent/GB2006075A/en
Application granted granted Critical
Publication of GB2006075B publication Critical patent/GB2006075B/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
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/03—Making uncoated products by both direct and backward extrusion

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Press Drives And Press Lines (AREA)
  • Forging (AREA)

Abstract

Hollow members sealed off at one end are made by extruding solid material 5 against a dolly 4 to shape the base of the hollow member, the material being extruded backwardly relative to the direction of advance of a mandrel 1, and then the walls 7 of the hollow member are extruded in the forward direction by further advance of the mandrel and without resistance from the dolly. The invention also relates to apparatus for performing this manufacture. <IMAGE>
GB7838005A 1977-09-27 1978-09-25 Process and apparatus for moulding hollow members sealed off at one end Expired GB2006075B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2743894A DE2743894C2 (en) 1977-09-27 1977-09-27 Device for pressing hollow bodies closed at one end

Publications (2)

Publication Number Publication Date
GB2006075A true GB2006075A (en) 1979-05-02
GB2006075B GB2006075B (en) 1982-03-17

Family

ID=6020240

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7838005A Expired GB2006075B (en) 1977-09-27 1978-09-25 Process and apparatus for moulding hollow members sealed off at one end

Country Status (6)

Country Link
AT (1) AT359359B (en)
DE (1) DE2743894C2 (en)
ES (1) ES472944A1 (en)
FR (1) FR2403845A1 (en)
GB (1) GB2006075B (en)
IT (1) IT1098632B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102513792A (en) * 2011-12-28 2012-06-27 上海久丰汽车零件有限公司 Cold extrusion forming process for oil pump shaft for automobile
US11059084B2 (en) * 2018-07-09 2021-07-13 No.59 Research Institute Of China Ordnance Industry Forward and backward extrusion composite forming method using mould having open inner cavity

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1102764A (en) * 1953-06-24 1955-10-25 Kellver A G Method and device for the manufacture of hollow bodies, seamless, open on one side
FR1182801A (en) * 1957-09-16 1959-06-30 Kabel Und Metallwerke Neumeyer Method and device for manufacturing hollow cylinders for hydraulic mine props and similar telescopic props
GB874193A (en) * 1958-07-15 1961-08-02 Hans Joachim Fuchs Method of forming hollow bodies by backward extrusion
US3186209A (en) * 1960-04-14 1965-06-01 Nat Machinery Co Method of cold forming an elongated hollow article
GB959289A (en) * 1960-10-07 1964-05-27 Burgess Norton Mfg Co Improvements in or relating to extrusion apparatus and methods of extrusion
DE1259182B (en) * 1962-01-18 1968-01-18 Bosch Gmbh Robert Device for cold pressing double cup-shaped spark plug housings
DE2107962A1 (en) * 1971-02-19 1972-08-31 Langenstein & Schemann Ag, 8630 Coburg Method and device for producing a sleeve from a blank by means of forward extrusion

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102513792A (en) * 2011-12-28 2012-06-27 上海久丰汽车零件有限公司 Cold extrusion forming process for oil pump shaft for automobile
US11059084B2 (en) * 2018-07-09 2021-07-13 No.59 Research Institute Of China Ordnance Industry Forward and backward extrusion composite forming method using mould having open inner cavity

Also Published As

Publication number Publication date
FR2403845A1 (en) 1979-04-20
AT359359B (en) 1980-11-10
ATA515478A (en) 1980-03-15
FR2403845B1 (en) 1983-10-28
DE2743894A1 (en) 1979-04-12
IT1098632B (en) 1985-09-07
IT7827611A0 (en) 1978-09-13
GB2006075B (en) 1982-03-17
ES472944A1 (en) 1979-02-16
DE2743894C2 (en) 1985-06-27

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Legal Events

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