EP0841105A2 - Procédé pour le filage d'une pièce en forme de godet - Google Patents

Procédé pour le filage d'une pièce en forme de godet Download PDF

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Publication number
EP0841105A2
EP0841105A2 EP97119363A EP97119363A EP0841105A2 EP 0841105 A2 EP0841105 A2 EP 0841105A2 EP 97119363 A EP97119363 A EP 97119363A EP 97119363 A EP97119363 A EP 97119363A EP 0841105 A2 EP0841105 A2 EP 0841105A2
Authority
EP
European Patent Office
Prior art keywords
extrusion
cup
shaped part
lubricant
base body
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
German (de)
English (en)
Other versions
EP0841105B1 (fr
EP0841105A3 (fr
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/fr
Publication of EP0841105A3 publication Critical patent/EP0841105A3/fr
Application granted granted Critical
Publication of EP0841105B1 publication Critical patent/EP0841105B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21C23/02—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, 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
    • 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

Definitions

  • the invention relates to a method for extrusion a cup-shaped part made of an approximately cylindrical body using a flowable lubricant.
  • extrusion for example, backward extrusion, Forward extrusion, combinations thereof or for example is about cross extrusion.
  • the invention therefore aims to provide a method for extrusion to provide a cup-shaped part, which the Forming a cup-shaped part using flowable Lubricants allowed such that an axis-centric Formation of the sleeve-shaped part ensured with high precision and avoid post-processing to a large extent to let.
  • this is a method for extrusion a cup-shaped part made of an approximately cylindrical body provided using a flowable lubricant, which is characterized in that before the pressing process for extruding the cup-shaped part to the final depth first a deepened centering attachment by means of a stamp is pressed in at the same time that at least one exemption is molded on the inner wall surface.
  • the cutout preferably extends to the edge of the neck.
  • the lubricant can run counter to or in the direction of the stamp movement are specifically derived, but also ensured is that the lubricant is previously reliable Has fulfilled lubrication function and on all sides in the circumferential direction effective by forming a film of lubricant has been made.
  • the inner wall is distributed, which is particularly regular Circumferential distances are arranged. This ensures that the flowable lubricant passes over the Exemptions evenly distributed in the circumferential direction for reliable Fulfillment of its lubricating function can flow, and that he via the shortest possible exit routes to the outside via the exemptions can escape. At the same time they form between the Exemptions available, protruding towards the inside Sections provide reliable guidance when axially directed Movement of the extrusion tool, which is used for the pressing process used to form the cup-shaped part to the final depth becomes. Due to the uniform discharge in the circumferential direction of the flowable lubricant via the cutouts becomes effective counteracted an axial displacement of the extrusion tool.
  • the is or are Cutouts are channel-shaped and essentially have one semicircular cross section. This allows one Derivation of the flowable lubricant via the cutouts achieve with the lowest possible flow resistance.
  • the base body is preferably used for extrusion, especially after deepening the training Centering approach preheated so that the final Extrusion process after the so-called warm extrusion is carried out.
  • one or more cutouts on the inner wall surface be shaped such that a later used flowable Reliable and reliable lubrication during extrusion Fulfilling its lubricant function can be dissipated in this way can be effective that displacement of the extrusion tool is prevented and is also prevented that the flowable Lubricant can cause deformation of the wall surface.
  • a later used flowable Reliable and reliable lubrication during extrusion Fulfilling its lubricant function can be dissipated in this way can be effective that displacement of the extrusion tool is prevented and is also prevented that the flowable Lubricant can cause deformation of the wall surface.
  • the at least one exemption at the same time during training of a recessed centering projection.
  • Figure 1 is the starting body shown which of an approximately cylindrical base body 1 is formed, for example, from a rod material has been previously cut with a predetermined length.
  • this cylindrical base body 1 can be a stamp, not shown, for example in one the first step is a slightly deeper trained centering approach 2 are trained.
  • several cutouts 3 on the inner wall surface 4 preferably formed at the same time as the centering projection are preferably arranged regularly at circumferential intervals.
  • the thus formed recesses 3 are preferably axially parallel directed to the central axis of the cylindrical body and extend to the edge of the neck 5. Between the circumferential direction of the inner wall surface 4 are formed recesses 3 remain section 6 projecting radially inwards.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)
  • Forging (AREA)
EP97119363A 1996-11-07 1997-11-05 Procédé pour le filage d'une pièce en forme de godet Expired - Lifetime EP0841105B1 (fr)

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 true EP0841105A2 (fr) 1998-05-13
EP0841105A3 EP0841105A3 (fr) 2000-01-26
EP0841105B1 EP0841105B1 (fr) 2003-03-26

Family

ID=7810951

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97119363A Expired - Lifetime EP0841105B1 (fr) 1996-11-07 1997-11-05 Procédé pour le filage d'une pièce en forme de godet

Country Status (2)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004025196A1 (fr) * 2002-08-31 2004-03-25 Behr Gmbh & Co. Condenseur d'agent refrigerant, notamment pour installations de conditionnement d'air d'automobile
EP1693127A1 (fr) * 2005-02-21 2006-08-23 Snecma Procédé de corroyage d'un lopin métallique et ensemble d'une chemise et d'un couvercle pour la mise en oeuvre du procédé

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009001942A1 (de) * 2009-03-27 2010-09-30 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Gehäuse einer elektrischen Maschine und elektrische Maschine
DE202018006957U1 (de) 2018-08-17 2024-11-04 Linhardt Viechtach Gmbh & Co. Kg Vorrichtung zur Herstellung eines Dosenverpackungsrohlings
DE102018120091B4 (de) * 2018-08-17 2024-09-26 Linhardt Gmbh & Co. Kg Dosenverpackung, Dosenverpackungsrohling sowie Vorrichtung und Verfahren zu deren Herstellung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE551053A (fr) *
DE2635342C2 (de) * 1976-08-03 1981-09-24 Mannesmann AG, 4000 Düsseldorf Presse zum Warmlochen eines Metallblockes
JPH01215427A (ja) * 1988-02-23 1989-08-29 Sumitomo Metal Ind Ltd 底付き金属管の製造方法
JP2826464B2 (ja) * 1994-03-18 1998-11-18 大同特殊鋼株式会社 冠状部品の鍛造方法と鍛造装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004025196A1 (fr) * 2002-08-31 2004-03-25 Behr Gmbh & Co. Condenseur d'agent refrigerant, notamment pour installations de conditionnement d'air d'automobile
US7334429B2 (en) 2002-08-31 2008-02-26 Behr Gmbh & Co. Kg Refrigerant condenser for motor vehicle air-conditioning systems
EP1693127A1 (fr) * 2005-02-21 2006-08-23 Snecma Procédé de corroyage d'un lopin métallique et ensemble d'une chemise et d'un couvercle pour la mise en oeuvre du procédé
FR2882282A1 (fr) * 2005-02-21 2006-08-25 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
US7841062B2 (en) 2005-02-21 2010-11-30 Snecma Method for working a metal slug, sleeve for implementing the method

Also Published As

Publication number Publication date
DE59709612D1 (de) 2003-04-30
DE19645954A1 (de) 1998-05-14
EP0841105B1 (fr) 2003-03-26
EP0841105A3 (fr) 2000-01-26

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