FR2403845A1 - METHOD AND DEVICE FOR STAMPING HOLLOW BODIES CLOSED AT ONE OF THEIR ENDS - Google Patents

METHOD AND DEVICE FOR STAMPING HOLLOW BODIES CLOSED AT ONE OF THEIR ENDS

Info

Publication number
FR2403845A1
FR2403845A1 FR7824155A FR7824155A FR2403845A1 FR 2403845 A1 FR2403845 A1 FR 2403845A1 FR 7824155 A FR7824155 A FR 7824155A FR 7824155 A FR7824155 A FR 7824155A FR 2403845 A1 FR2403845 A1 FR 2403845A1
Authority
FR
France
Prior art keywords
hollow bodies
stamping
anvil
bodies closed
hollow
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
FR7824155A
Other languages
French (fr)
Other versions
FR2403845B1 (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 FR2403845A1 publication Critical patent/FR2403845A1/en
Application granted granted Critical
Publication of FR2403845B1 publication Critical patent/FR2403845B1/fr
Granted 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)
  • Forging (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

Procédé pour l'estampage de corps creux fermés à une de leurs extrémités au moyen d'un poinçon étagé et d'une enclume. Selon l'invention, ce procédé est caractérisé en ce que le fond desdits corps creux est d'abord formé dans un bloc de matière massif dans une opération de travail ininterrompue par remontée de matière et coopération avec l'enclume après quoi le manchon du corps creux est formé librement par estampage vers l'avant, sans coopération de l'enclume. Formage de corps creux pourvu d'un fond.Process for stamping hollow bodies closed at one of their ends by means of a stepped punch and an anvil. According to the invention, this method is characterized in that the bottom of said hollow body is first formed in a block of solid material in an uninterrupted working operation by rising material and cooperation with the anvil after which the sleeve of the body Hollow is formed freely by forward stamping without cooperation of the anvil. Forming hollow body provided with a bottom.

FR7824155A 1977-09-27 1978-08-18 METHOD AND DEVICE FOR STAMPING HOLLOW BODIES CLOSED AT ONE OF THEIR ENDS Granted FR2403845A1 (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
FR2403845A1 true FR2403845A1 (en) 1979-04-20
FR2403845B1 FR2403845B1 (en) 1983-10-28

Family

ID=6020240

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7824155A Granted FR2403845A1 (en) 1977-09-27 1978-08-18 METHOD AND DEVICE FOR STAMPING HOLLOW BODIES CLOSED AT ONE OF THEIR ENDS

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)

Families Citing this family (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
CN108927416B (en) * 2018-07-09 2019-07-23 中国兵器工业第五九研究所 A kind of open inner mold backward and forward extrusion combined shaping method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
GB959289A (en) * 1960-10-07 1964-05-27 Burgess Norton Mfg Co Improvements in or relating to extrusion apparatus and methods of extrusion
GB976087A (en) * 1960-04-14 1964-11-25 Nat Machinery Co Improvements in or relating to the manufacture of elongated hollow bodies
GB998287A (en) * 1962-01-18 1965-07-14 Robert Bosch Gmbh
GB1364566A (en) * 1971-02-19 1974-08-21 Langenstein & Schemann Ag Process and device for manufacturing sleeves from a blank by means of forward extrusion

Family Cites Families (1)

* 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

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
GB976087A (en) * 1960-04-14 1964-11-25 Nat Machinery Co Improvements in or relating to the manufacture of elongated hollow bodies
GB959289A (en) * 1960-10-07 1964-05-27 Burgess Norton Mfg Co Improvements in or relating to extrusion apparatus and methods of extrusion
GB998287A (en) * 1962-01-18 1965-07-14 Robert Bosch Gmbh
GB1364566A (en) * 1971-02-19 1974-08-21 Langenstein & Schemann Ag Process and device for manufacturing sleeves from a blank by means of forward extrusion

Also Published As

Publication number Publication date
GB2006075A (en) 1979-05-02
GB2006075B (en) 1982-03-17
IT1098632B (en) 1985-09-07
DE2743894C2 (en) 1985-06-27
ATA515478A (en) 1980-03-15
IT7827611A0 (en) 1978-09-13
AT359359B (en) 1980-11-10
FR2403845B1 (en) 1983-10-28
ES472944A1 (en) 1979-02-16
DE2743894A1 (en) 1979-04-12

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Legal Events

Date Code Title Description
ST Notification of lapse