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EP0114571A3 - Device for the backward extrusion of a hollow section - Google Patents

Device for the backward extrusion of a hollow section Download PDF

Info

Publication number
EP0114571A3
EP0114571A3 EP83810592A EP83810592A EP0114571A3 EP 0114571 A3 EP0114571 A3 EP 0114571A3 EP 83810592 A EP83810592 A EP 83810592A EP 83810592 A EP83810592 A EP 83810592A EP 0114571 A3 EP0114571 A3 EP 0114571A3
Authority
EP
European Patent Office
Prior art keywords
die
section
stamp
pressure
cross
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.)
Ceased
Application number
EP83810592A
Other languages
German (de)
French (fr)
Other versions
EP0114571A2 (en
Inventor
Alfred Wagner
Adolf Ames
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.)
Rio Tinto Switzerland AG
Original Assignee
Schweizerische Aluminium 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 Schweizerische Aluminium AG filed Critical Schweizerische Aluminium AG
Publication of EP0114571A2 publication Critical patent/EP0114571A2/en
Publication of EP0114571A3 publication Critical patent/EP0114571A3/en
Ceased 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, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/21—Presses specially adapted for extruding metal
    • B21C23/218—Indirect extrusion presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS 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
    • B21C23/20—Making uncoated products by backward extrusion
    • B21C23/205—Making products of generally elongated shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C25/00—Profiling tools for metal extruding
    • B21C25/02—Dies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)

Abstract

Bei einer Vorrichtung zum indirekten Strangpressen eines Hohlprofils aus einem Bolzen (B), insbesondere einem Aluminium-Hohlbolzen, der von einem Druckstempel (16) einem Formgebungsquerschnitt (25) einer Matrize (10) zuge­ führt wird, ist die Matrize (10) von einem Blockaufnehmer (3) überfahrbar und ihrem Formgebungsquerschnitt ein die Innenkontur des Hohlprofils bestimmender Dorn (17) zuge­ ordnet. In a device for indirect extrusion a Hollow profile from a bolt (B), in particular a Hollow aluminum bolt driven by a pressure stamp (16) a shaping cross section (25) of a die (10) the die (10) is guided by a block pick-up (3) can be driven over and its shape cross section Internal contour of the hollow profile determining mandrel (17) arranges.

Dem Formgebungsquerschnitt (25) ist dabei an der Matrize (10) in Pressrichtung (x) eine Formkaverne (30) unmittelbar vorgeschaltet, deren radiale Erstreckung grösser ist als die Weite (d) des Formgebungsquerschnittes. The shaping cross section (25) is on the Die (10) in the pressing direction (x) a molding cavern (30) immediately upstream, their radial extension greater is the width (d) of the shaping cross section.

Diese Formkaverne (30) kann entweder in die zum Druckstempel (16) gerichtete Matrizenfront (12) oder in die zur Matrizenfront (12) gerichtete Druckstirn (24) des Druck­ stempels (16) eingeformt sein. This shaped cavern (30) can either be in the Stamp (16) directed die front (12) or in the pressure forehead (24) of the pressure directed towards the die front (12) stamp (16) be molded.

EP83810592A 1982-12-24 1983-12-14 Device for the backward extrusion of a hollow section Ceased EP0114571A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8236460 1982-12-24
DE8236460U 1982-12-24

Publications (2)

Publication Number Publication Date
EP0114571A2 EP0114571A2 (en) 1984-08-01
EP0114571A3 true EP0114571A3 (en) 1984-10-10

Family

ID=6746895

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83810592A Ceased EP0114571A3 (en) 1982-12-24 1983-12-14 Device for the backward extrusion of a hollow section

Country Status (2)

Country Link
US (1) US4557131A (en)
EP (1) EP0114571A3 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4744236A (en) * 1984-04-20 1988-05-17 Kabushiki Kaisha Kobeseikosho Method of and apparatus for indirect extrusion
US4631945A (en) * 1985-11-22 1986-12-30 Traco Billet lubrication apparatus
FR2750901B1 (en) * 1996-07-11 1998-11-06 Clecim Sa METHOD FOR UNLOCKING A TICKET IN A SPINNING PRESS
US6931904B2 (en) 2003-10-27 2005-08-23 American Axle & Manufacturing, Inc. Method of forming a trailer receiver tube using hollow forward extrusion
WO2009006572A1 (en) * 2007-07-05 2009-01-08 Alcoa Inc. Metal bodies containing microcavities and apparatus and methods relating thereto
CN101332476B (en) * 2008-08-01 2010-06-02 河南科技大学 A precision extrusion forming method and special mold for thin-walled long tubular part blank
US20100143527A1 (en) * 2008-12-17 2010-06-10 Manu Mathai Extrusion die and method for extruding a rotor shaft for a wind turbine generator
CN102114497B (en) * 2009-12-30 2012-11-28 沈阳中复科金压力容器有限公司 Specially-shaped extruding female die of aluminium alloy seamless gas cylinder
USD794823S1 (en) 2010-08-24 2017-08-15 Life Technologies Corporation Electrophoresis tank with a base and cassette inserted in

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE926482C (en) * 1949-11-09 1955-04-18 Gewerkschaft Reuss Process for the production of seamless light metal tubes with collars consisting of one piece
DE2511295A1 (en) * 1975-03-14 1976-09-23 Aluminium Walzwerke Singen PROCESS FOR INDIRECT EXTRUSION AND DEVICE FOR CARRYING OUT THE PROCESS
DE2509490B2 (en) * 1975-03-05 1980-01-24 Schloemann-Siemag Ag, 4000 Duesseldorf Closure piece on an indirect metal extrusion press for light and heavy metals
DE2935804A1 (en) * 1978-09-28 1980-04-10 Schelde Nv METHOD FOR PRODUCING TUBES BY EXTRACTION AND FOR ATTACHING A FLANGE TO AT LEAST TWO TUBES, AND DEVICE FOR EXERCISING THE METHOD

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US362623A (en) * 1887-05-10 Chables b
US2278293A (en) * 1941-04-16 1942-03-31 William J Watson Forging apparatus
US2371041A (en) * 1942-01-09 1945-03-06 Hydraulic Dev Corp Inc Method of and device for forging
US2893553A (en) * 1951-12-27 1959-07-07 Kreidler Alfred Apparatus for the production of hollow metallic articles
US2860775A (en) * 1954-10-05 1958-11-18 Charles A Brauchler Split die and container for extrusion press
US3150773A (en) * 1963-01-04 1964-09-29 American Metal Climax Inc Material forming process and apparatus
US3355927A (en) * 1964-03-05 1967-12-05 Baldwin Lima Hamilton Corp Extrusion press for multiple tube configurations and the like
DE1938024A1 (en) * 1969-07-26 1971-02-04 Karl Gartner Extrusion press for the production of light metal profiles
DE2419709B2 (en) * 1974-04-24 1976-09-02 Schloemann-Siemag AG, 4000 Düsseldorf PRESSING PUNCH HOLDER ON A METAL EXTRUSION PRESS
JPS5668524A (en) * 1979-11-06 1981-06-09 Ryobi Ltd Production of spike mounting seat

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE926482C (en) * 1949-11-09 1955-04-18 Gewerkschaft Reuss Process for the production of seamless light metal tubes with collars consisting of one piece
DE2509490B2 (en) * 1975-03-05 1980-01-24 Schloemann-Siemag Ag, 4000 Duesseldorf Closure piece on an indirect metal extrusion press for light and heavy metals
DE2511295A1 (en) * 1975-03-14 1976-09-23 Aluminium Walzwerke Singen PROCESS FOR INDIRECT EXTRUSION AND DEVICE FOR CARRYING OUT THE PROCESS
DE2935804A1 (en) * 1978-09-28 1980-04-10 Schelde Nv METHOD FOR PRODUCING TUBES BY EXTRACTION AND FOR ATTACHING A FLANGE TO AT LEAST TWO TUBES, AND DEVICE FOR EXERCISING THE METHOD

Also Published As

Publication number Publication date
US4557131A (en) 1985-12-10
EP0114571A2 (en) 1984-08-01

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE CH DE FR GB IT LI SE

PUAL Search report despatched

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17P Request for examination filed

Effective date: 19850402

17Q First examination report despatched

Effective date: 19860516

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19870509

RIN1 Information on inventor provided before grant (corrected)

Inventor name: WAGNER, ALFRED

Inventor name: AMES, ADOLF