WO2008145092A1 - Procédé de fabrication d'éléments de base d'arbre creux et éléments de base d'arbre creux fabriqués selon ce procédé - Google Patents

Procédé de fabrication d'éléments de base d'arbre creux et éléments de base d'arbre creux fabriqués selon ce procédé Download PDF

Info

Publication number
WO2008145092A1
WO2008145092A1 PCT/DE2008/000833 DE2008000833W WO2008145092A1 WO 2008145092 A1 WO2008145092 A1 WO 2008145092A1 DE 2008000833 W DE2008000833 W DE 2008000833W WO 2008145092 A1 WO2008145092 A1 WO 2008145092A1
Authority
WO
WIPO (PCT)
Prior art keywords
hollow shaft
preform
particular according
forming
bore
Prior art date
Application number
PCT/DE2008/000833
Other languages
German (de)
English (en)
Inventor
Matthias Derse
Original Assignee
Neumayer Tekfor Holding Gmbh
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 Neumayer Tekfor Holding Gmbh filed Critical Neumayer Tekfor Holding Gmbh
Priority to EP08758076A priority Critical patent/EP2148752B1/fr
Priority to DE112008002036T priority patent/DE112008002036A5/de
Priority to AT08758076T priority patent/ATE553867T1/de
Publication of WO2008145092A1 publication Critical patent/WO2008145092A1/fr
Priority to US12/626,119 priority patent/US20100068428A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/06—Making machine elements axles or shafts
    • B21K1/10—Making machine elements axles or shafts of cylindrical form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/10—Piercing billets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/06—Making machine elements axles or shafts
    • B21K1/063—Making machine elements axles or shafts hollow

Definitions

  • EP 1 745 870 A1 has disclosed a method for producing hollow shaft main bodies, this method being characterized in that, in a first step, the outer surface of a cylindrical starting material is machined by forming to at least a predetermined diameter transition in the longitudinal direction of a base body to obtain. During this first step, namely by means of a cross wedge rolling process, a hole should also be formed by means of one or two mandrels. Thereafter, in a further method step, namely by incremental forming, the outer and / or inner surface of the base body is produced.
  • the method for producing hollow-shaft basic bodies according to the invention provided with at least one bore is now characterized in that, in a first step, in which both the outer surface of a cylindrical starting material and the bore are formed by forming a preform or a blank is processed, at least a predetermined diameter transition in the longitudinal direction of the preform is generated, and
  • the preform is incrementally formed by reshaping the outer and / or inner surface of the main body to form the hollow shaft
  • Body is reshaped.
  • the blanks By producing a preform or a blank by forming, which is particularly suitable for the vast majority of applications, a forging process, the blanks can be made in simple tools and also provided with a hole and then serve as a raw material for the next step.
  • the bore can either only partially be introduced into the body or be continuous. Even with continuous drilling only a small amount of waste is present through the appropriately for forging process belonging punching the Butzens.
  • Forging tools By the use of forging tools a particularly favorable mass production is possible.
  • the previously mentioned punching the Butzens can also be done in a separate operation in a tool outside of a forging tool.
  • the forming into a preform can also be done in a forming process, the half-warm or - z. B. depending on the required degree of deformation or application - is carried out cold.
  • the preform thus produced is further reshaped, namely the inner and / or outer surface is reshaped, is suitable in particularly favorable manner the so-called rotary swaging, which may be application or product-related cold or Halbwarmrundkneten.
  • rotary swaging which may be application or product-related cold or Halbwarmrundkneten.
  • the invention further relates to hollow shafts, z.
  • transmission shafts which are produced by the inventive combination of at least one of the cited in the claims and protectable process steps, wherein the shaft has a continuous or only partially introduced bore.
  • the preform 1a has a shank portion 2a and a flange portion 3a and a through bore 4a.
  • the shaft region as well as the bore may be cylindrical or conical.
  • the preform 1a is made by a forging process, which is performed in a multi-stage mold.
  • One of the consequences of the bore 4a is introduced to a slug 5.
  • This slug is either punched out in a next station or can be punched out in a tool outside the forging tool.
  • the preform 1a is converted into the hollow shaft main body 1b, in particular incrementally, in particular by swaging, while the flange region 3a can be largely retained and the incremental deformation carried out in the region adjoining the region 3b.
  • a cylindrical or profiled mandrel can be inserted in sections from the side facing away from the flange region 3a by corresponding preforming of the region 2b and 2b ' .
  • FIG. 2 shows a further embodiment according to the invention, wherein the upper region 11 a of FIG. 2 represents the preform and the lower region in turn represents the hollow shaft main body 11 b.
  • the introduced in the forging process bore 12a extends only partially through the blank 11a, the area generated by incremental forming is denoted by 13.
  • the forging preform 21a is provided with an undercut 22 which, like the blank 21a, is made by forging.
  • the hollow shaft main body 21b shown in the lower part of Figure 3 is formed in the region 23 by swaging.
  • the region 23 may be supported by a mandrel during the forming process depending on the desired inner shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

La présente invention concerne un procédé de fabrication d'éléments de base d'arbres creux ainsi que des éléments de base d'arbre creux fabriqués selon ce procédé. Ce procédé comporte une première opération par laquelle on procède au formage d'une préforme (1a) présentant une transition de diamètre et un alésage (4a), puis une autre opération par laquelle on obtient l'élément de base d'arbre creux (1b) par formage incrémentiel de la préforme.
PCT/DE2008/000833 2007-05-26 2008-05-15 Procédé de fabrication d'éléments de base d'arbre creux et éléments de base d'arbre creux fabriqués selon ce procédé WO2008145092A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP08758076A EP2148752B1 (fr) 2007-05-26 2008-05-15 Procédé de fabrication d'élément de base d'arbre creux
DE112008002036T DE112008002036A5 (de) 2007-05-26 2008-05-15 Verfahren zur Herstellung von Hohlwellengrundkorpern sowie nach dem Verfahren hergestellte Hohlwellengrundkorper
AT08758076T ATE553867T1 (de) 2007-05-26 2008-05-15 Verfahren zur herstellung von hohlwellengrundkörpern
US12/626,119 US20100068428A1 (en) 2007-05-26 2009-11-25 Method for Producing Hollow Shaft Base Bodies and Hollow Shaft Base Body Produced Thereby

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007024743 2007-05-26
DE102007024743.7 2007-05-26

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/626,119 Continuation US20100068428A1 (en) 2007-05-26 2009-11-25 Method for Producing Hollow Shaft Base Bodies and Hollow Shaft Base Body Produced Thereby

Publications (1)

Publication Number Publication Date
WO2008145092A1 true WO2008145092A1 (fr) 2008-12-04

Family

ID=39773115

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2008/000833 WO2008145092A1 (fr) 2007-05-26 2008-05-15 Procédé de fabrication d'éléments de base d'arbre creux et éléments de base d'arbre creux fabriqués selon ce procédé

Country Status (4)

Country Link
EP (1) EP2148752B1 (fr)
AT (1) ATE553867T1 (fr)
DE (2) DE102008023696A1 (fr)
WO (1) WO2008145092A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102319854A (zh) * 2011-08-18 2012-01-18 贵州航天新力铸锻有限责任公司 超临界汽水分离器侧封头的锻制方法
CN111842771A (zh) * 2019-04-29 2020-10-30 大众汽车有限公司 用于制造空心轴的方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012106585A1 (de) * 2012-07-20 2014-01-23 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung einer Hochdruckkraftstoffleitung
DE102015221842A1 (de) * 2015-11-06 2017-05-11 Volkswagen Aktiengesellschaft Verfahren zur Herstellung einer Getriebewelle
DE102017212989A1 (de) * 2017-07-27 2019-01-31 Volkswagen Aktiengesellschaft Herstellung einer Hohlwelle durch Radialumformen eines kurzen Rohlings

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19705279A1 (de) * 1997-02-12 1997-11-20 Daimler Benz Ag Verfahren zum Herstellen von Rohlingen für hohle Getriebewellen
EP1500443A1 (fr) * 2003-07-24 2005-01-26 Kubota Iron Works Co., Ltd. Arbre creux à diamètre échelonné et son procédé de fabrication
DE102006019234A1 (de) * 2005-06-14 2006-12-28 IFUTEC Ingenieurbüro für Umformtechnik GmbH Verfahren zur Umformung eines Massivelements
EP1745870A1 (fr) * 2005-07-22 2007-01-24 Johann Hay GmbH & Co. KG, Automobiltechnik Méthode de fabrication des corps de base des axes creuses

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19705279A1 (de) * 1997-02-12 1997-11-20 Daimler Benz Ag Verfahren zum Herstellen von Rohlingen für hohle Getriebewellen
EP1500443A1 (fr) * 2003-07-24 2005-01-26 Kubota Iron Works Co., Ltd. Arbre creux à diamètre échelonné et son procédé de fabrication
DE102006019234A1 (de) * 2005-06-14 2006-12-28 IFUTEC Ingenieurbüro für Umformtechnik GmbH Verfahren zur Umformung eines Massivelements
EP1745870A1 (fr) * 2005-07-22 2007-01-24 Johann Hay GmbH & Co. KG, Automobiltechnik Méthode de fabrication des corps de base des axes creuses

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SCHMOECKEL D ET AL: "INTEGRATION DES AXIAL-RADIAL-UMFORMENS IN DEN HERSTELLUNGSPROZESS EINER RUNDGEKNETETEN GETRIEBEWELLE", STAHL UND EISEN, VERLAG STAHLEISEN, DUSSELDORF, DE, vol. 118, no. 2, 17 February 1998 (1998-02-17), pages 99 - 104,140, XP000733642, ISSN: 0340-4803 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102319854A (zh) * 2011-08-18 2012-01-18 贵州航天新力铸锻有限责任公司 超临界汽水分离器侧封头的锻制方法
CN111842771A (zh) * 2019-04-29 2020-10-30 大众汽车有限公司 用于制造空心轴的方法

Also Published As

Publication number Publication date
ATE553867T1 (de) 2012-05-15
EP2148752B1 (fr) 2012-04-18
DE112008002036A5 (de) 2010-04-29
EP2148752A1 (fr) 2010-02-03
DE102008023696A1 (de) 2008-12-24

Similar Documents

Publication Publication Date Title
DE102008036226B4 (de) Verfahren zur Herstellung einer Hohlwelle
EP2440341B1 (fr) Procédé et dispositif de fabrication de pièces allongées en métal pourvues de rainures hélicoïdales, en particulier des forets hélicoïdaux ou des vis sans fin
EP2641673B1 (fr) Procédé et dispositif de fabrication d'une section de raccordement comme élément d'un outil
DE102012005106B4 (de) Verfahren zur Herstellung einer Hohlwelle und Vorrichtung hierfür
WO2010037551A2 (fr) Procédé et dispositif pour réaliser un filetage extérieur sans enlèvement de matière sur des pièces creuses en métal
DE3235115A1 (de) Schmiedeverfahren zum herstellen einer flanschwelle
EP2148752B1 (fr) Procédé de fabrication d'élément de base d'arbre creux
EP1745870A1 (fr) Méthode de fabrication des corps de base des axes creuses
EP2458131B1 (fr) Procédé pour la fabrication de l'extrémité enfichable d'un foret
EP0313985B1 (fr) Procédé de fabrication d'un arbre à cames
EP1252947B1 (fr) Procédé de fabrication d'un élément d'essieu pour un véhicule automobile
EP1689556A2 (fr) Procede de formage a froid pour produire des pivots spheriques
EP1551577B1 (fr) Procede et dispositif pour produire une jante pour pneumatiques
EP1024913B1 (fr) Procede et dispositif pour produire un arbre a partir d'un element tubulaire
DE2808198A1 (de) Verfahren und vorrichtung zur bildung eines achsschenkels an einem hohlen achsrohling
EP3221068B1 (fr) Procédé de fabrication d'un élément moulé à symétrie de révolution
EP3737514B1 (fr) Procédé et dispositif servant à fabriquer des soupapes creuses refroidies à l'intérieur
EP3585986B1 (fr) Procédé de fabrication d'une soupape à refroidissement intérieur dotée d'une structure de refroidissement et soupape fabriquée au moyen dudit procédé
DE102008053474B4 (de) Verfahren zum Formen eines Nockenvorsprungs
DE102007005886B4 (de) Verfahren zur Herstellung eines Nutzfahrzeug-Achsschenkels
DE3101123A1 (de) Verfahren und einrichtung zum verformen eines metallstabes in ein tulpenfoermiges teil durch fliesspressen in einer geschlossenen kammer
DE3535811A1 (de) Verfahren zur umformenden herstellung von ringfoermigen pressteilen, insbesondere waelzlagerinnenringen
DE102021203015B4 (de) Verfahren zum Herstellen eines Bauteils mit mindestens einem Vorsprung sowie damit hergestelltes Bauteil
DE102004004233C5 (de) Verfahren und Vorrichtung zur Herstellung einer Dehnschraube
EP4194315A1 (fr) Crémaillère et procédé de fabrication d'une crémaillère pour un mécanisme de direction d'un véhicule automobile et mécanisme de direction pour un véhicule automobile

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08758076

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2008758076

Country of ref document: EP

REF Corresponds to

Ref document number: 112008002036

Country of ref document: DE

Date of ref document: 20100429

Kind code of ref document: P