EP0841105A3 - Verfahren zum Fliesspressen eines napfförmigen Teils - Google Patents

Verfahren zum Fliesspressen eines napfförmigen Teils Download PDF

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Publication number
EP0841105A3
EP0841105A3 EP97119363A EP97119363A EP0841105A3 EP 0841105 A3 EP0841105 A3 EP 0841105A3 EP 97119363 A EP97119363 A EP 97119363A EP 97119363 A EP97119363 A EP 97119363A EP 0841105 A3 EP0841105 A3 EP 0841105A3
Authority
EP
European Patent Office
Prior art keywords
extrusion
cup
shaped part
way
recess
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
EP97119363A
Other languages
English (en)
French (fr)
Other versions
EP0841105A2 (de
EP0841105B1 (de
Inventor
Anton Dipl.-Ing. Holzhauer
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.)
Anton Holzhauer Umformtechnik
Original Assignee
Anton Holzhauer Umformtechnik
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 Anton Holzhauer Umformtechnik filed Critical Anton Holzhauer Umformtechnik
Publication of EP0841105A2 publication Critical patent/EP0841105A2/de
Publication of EP0841105A3 publication Critical patent/EP0841105A3/de
Application granted granted Critical
Publication of EP0841105B1 publication Critical patent/EP0841105B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B21C23/18—Making uncoated products by impact extrusion
    • B21C23/186—Making uncoated products by impact extrusion by backward extrusion
    • 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
    • B21C23/20—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 OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/32—Lubrication of metal being extruded or of dies, or the like, e.g. physical state of lubricant, location where lubricant is applied

Landscapes

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

Abstract

Es wird ein Verfahren zum Fließpressen eines napfförmigen Teils (10) aus einem etwa zylindrischen Grundkörper (1) unter Einsatz eines fließfähigen Schmierstoffs angegeben, bei dem vor der Ausführung des eigentlichen Fließpreßvorgangs, ausgehend von einem etwa zylindrischen Grundkörper (1) zur Ausformung eines napfförmigen Teils bis auf Endtiefe wenigstens eine Freisparung (3) an der Innenwandfläche (4) ausgeformt wird. Mittels der so gebildeten Freisparung (3) oder vorzugsweise der Mehrzahl von in Umfangsrichtung vorzugsweise regelmäßig verteilten Freisparungen (3), welche insbesondere bis zum freien Rand (5) des napfförmigen Teils (10) reichen, kann der später beim Fließpreßvorgang eingesetzte fließfähige Schmierstoff in gezielter Weise nach außen abgeführt werden. Hierdurch lassen sich Achsversetzungen und Achsverdrängungen des Fließpreß-Werkzeugs bei der Bearbeitung bis auf Endtiefe vermeiden und dennoch wird eine ausreichende Schmierfunktion durch den fließfähigen Schmierstoff sichergestellt. Vorzugsweise wird oder werden die Freisparung(en) (3) mittels des Stempels zur Ausbildung eines Zentrieransatzes (2) zugleich ausgeformt. Als Fließpreßbearbeitung kommt Rückwärtsfließpressen, Vorwärtsfließpressen, Querfließpressen oder Kombinationen hiervon beispielsweise in Betracht.
EP97119363A 1996-11-07 1997-11-05 Verfahren zum Fliesspressen eines napfförmigen Teils Expired - Lifetime EP0841105B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19645954 1996-11-07
DE19645954A DE19645954A1 (de) 1996-11-07 1996-11-07 Verfahren zum Fließpressen eines napfförmigen Teils

Publications (3)

Publication Number Publication Date
EP0841105A2 EP0841105A2 (de) 1998-05-13
EP0841105A3 true EP0841105A3 (de) 2000-01-26
EP0841105B1 EP0841105B1 (de) 2003-03-26

Family

ID=7810951

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97119363A Expired - Lifetime EP0841105B1 (de) 1996-11-07 1997-11-05 Verfahren zum Fliesspressen eines napfförmigen Teils

Country Status (2)

Country Link
EP (1) EP0841105B1 (de)
DE (2) DE19645954A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1537369A1 (de) 2002-08-31 2005-06-08 Behr GmbH & Co. Kältemittelkondensator, insbesondere für kratfahrzeug-klimaanlagen
FR2882282B1 (fr) * 2005-02-21 2008-10-17 Snecma Moteurs Sa Procede pour le corroyage d'un lopin metallique, chemise pour la mise en oeuvre du procede et ensemble d'une chemise et d'un couvercle pour la mise en oeuvre du procede
DE102009001942A1 (de) * 2009-03-27 2010-09-30 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Gehäuse einer elektrischen Maschine und elektrische Maschine
DE102018120091A1 (de) * 2018-08-17 2020-02-20 Linhardt Gmbh & Co. Kg Dosenverpackung, Dosenverpackungsrohling sowie Vorrichtung und Verfahren zu deren Herstellung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE551053A (de) *
US4129022A (en) * 1976-08-03 1978-12-12 Mannesmann Aktiengesellschaft Piercing a solid billet
JPH01215427A (ja) * 1988-02-23 1989-08-29 Sumitomo Metal Ind Ltd 底付き金属管の製造方法
JPH07256387A (ja) * 1994-03-18 1995-10-09 Daido Steel Co Ltd トルクセンサ用検出リング及び冠状部品の鍛造方法と鍛造装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE551053A (de) *
US4129022A (en) * 1976-08-03 1978-12-12 Mannesmann Aktiengesellschaft Piercing a solid billet
JPH01215427A (ja) * 1988-02-23 1989-08-29 Sumitomo Metal Ind Ltd 底付き金属管の製造方法
JPH07256387A (ja) * 1994-03-18 1995-10-09 Daido Steel Co Ltd トルクセンサ用検出リング及び冠状部品の鍛造方法と鍛造装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 526 (M - 897) 22 November 1989 (1989-11-22) *
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 02 29 February 1996 (1996-02-29) *

Also Published As

Publication number Publication date
DE59709612D1 (de) 2003-04-30
EP0841105A2 (de) 1998-05-13
EP0841105B1 (de) 2003-03-26
DE19645954A1 (de) 1998-05-14

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