EP1252946A2 - Procédé pour la production des pièces à symétrie de rotation - Google Patents

Procédé pour la production des pièces à symétrie de rotation Download PDF

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Publication number
EP1252946A2
EP1252946A2 EP02002515A EP02002515A EP1252946A2 EP 1252946 A2 EP1252946 A2 EP 1252946A2 EP 02002515 A EP02002515 A EP 02002515A EP 02002515 A EP02002515 A EP 02002515A EP 1252946 A2 EP1252946 A2 EP 1252946A2
Authority
EP
European Patent Office
Prior art keywords
tube
wall thickness
component
outer diameter
rotationally symmetrical
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
EP02002515A
Other languages
German (de)
English (en)
Other versions
EP1252946B1 (fr
EP1252946A3 (fr
Inventor
Jochen Dr.-Ing. Ginsberg
Thomas Dr.-Ing. Muhr
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.)
Muhr und Bender KG
Original Assignee
Muhr und Bender KG
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
Family has litigation
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Application filed by Muhr und Bender KG filed Critical Muhr und Bender KG
Publication of EP1252946A2 publication Critical patent/EP1252946A2/fr
Publication of EP1252946A3 publication Critical patent/EP1252946A3/fr
Application granted granted Critical
Publication of EP1252946B1 publication Critical patent/EP1252946B1/fr
Anticipated expiration legal-status Critical
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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
    • B21K21/00—Making hollow articles not covered by a single preceding sub-group
    • B21K21/12—Shaping end portions of hollow articles
    • 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
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/16—Making tubes with varying diameter in longitudinal direction
    • 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
    • B21K1/12—Making machine elements axles or shafts of specially-shaped cross-section
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49945—Assembling or joining by driven force fit

Definitions

  • the invention relates to a method for producing rotationally symmetrical Components from a tube, in particular hollow monoblock shafts, the tube initially having a constant outside diameter and a constant Has wall thickness and the rotationally symmetrical component at least over a range of its total length a different one, in particular smaller outer diameter and / or a different one, in particular has greater wall thickness.
  • the invention also relates to a rotationally symmetrical component, in particular a hollow monoblock shaft, with an outside diameter that varies over the entire length of the component and / or a varying wall thickness.
  • Rotationally symmetrical components that differ over their entire length Have outside diameter and different wall thicknesses, in particular in motor vehicles as drive shafts, camshafts, intermediate shafts or gear shafts used. Under the generally stronger Attentive point of view of "weight loss" have been some time ago, instead of shafts made from solid rods, made from pipes Waves, so-called hollow shafts are used.
  • Pipes especially steel pipes, are manufactured either seamless, d. H. from the full material without Longitudinal seam, or in a welded version, d. H. made of bent sheet metal or Strip steel with longitudinal seam. Welded parts are usually used for rotating components Pipes used, since seamless tubes have the required concentricity cannot always be guaranteed with sufficient certainty. Beyond that the production of seamless tubes is generally more expensive than the production of welded ones Tube.
  • Wall thickness cannot be increased arbitrarily, but depends on the one hand Outside diameter and wall thickness of the original pipe to other on the outside diameter of the end portion of the shaft (material conservation or constant volume). Should the end area be a particularly large one Have wall thickness, it is necessary that the starting material, i.e. the original pipe, a sufficiently large wall thickness or one has a correspondingly large outer diameter. This can then do so cause the wall thickness and / or the outer diameter of the original Pipe must be larger than the desired wall thickness or the outer diameter of the finished shaft in the middle. With the pipe not only do the end areas have to be kneaded, but also the middle area must also be stretched both reduced in its outer diameter and in its wall thickness become.
  • the invention is therefore based on the object of a method for producing of a rotationally symmetrical component described at the outset from a Specify pipe, which is carried out as simply and therefore inexpensively can be.
  • the method according to the invention is therefore simpler and therefore less expensive carry out that as a starting material a tube with a wall thickness, which corresponds to the smallest wall thickness of the finished component becomes.
  • only the wall thickness is used considered a region of the component with a certain length. has For example, the edge of the component has a short approach, which is a very has a small wall thickness, this is not the smallest wall thickness of the component to understand.
  • the component will have its smallest wall thickness in have approximately in the middle area, the area of the smallest wall thickness but does not have to be exactly in the middle of the component.
  • the process that is usually necessary in the prior art is eliminated Stretching an area, in particular the central area of the Tube.
  • the pipe is a welded one that has not been retightened Tube is used. This can - as explained above - the manufacturing cost of the raw material i.e. the pipe significantly reduced become.
  • the method according to the invention can thereby be advantageously further develop that axial upsetting and radial forging the heated area of the tube in one setting, preferably in one step. Must the tube in the individual processing steps not being switched from one machine to another, this results in shorter manufacturing times for the rotationally symmetrical Component, which also has a favorable effect on the manufacturing costs.
  • the method according to the second teaching of the invention is reduced the manufacturing costs in that a tube as a starting material is used, which is only welded, but not tightened is. That for achieving an edge area of the tube with a relatively large Wall thickness required material volume is used in this process provided that the tube from a sheet or a Steel strip with a large thickness is bent.
  • the wall thickness of the pipe with the smallest wall thickness of the finished component is reduced.
  • 1a shows a simply welded tube 2 with an outer diameter D 1 and a wall thickness d 1 .
  • the wall thickness d 1 corresponds to the thickness of the sheet or strip steel from which the tube 2 has been bent.
  • 1b shows the tube 2 'after it has been drawn through a drawing nozzle or a drawing ring. By pulling the tube 2, it has an outer diameter D 2 ⁇ D 1 and a wall thickness d 2 > d 1 .
  • This tube 2 ' is dimensioned such that a shaft 1 with an end region 3 with the desired outer diameter D E and the desired wall thickness d E can be produced by kneading.
  • FIG. 2 shows an embodiment of the method according to the invention for producing a shaft 1 using three manufacturing steps.
  • the first manufacturing step (FIG. 2a) corresponds to the first manufacturing step (FIG. 1a) in the method known from the prior art, namely it shows a simply welded tube 2 with an outside diameter D 1 and a wall thickness d 1 .
  • the wall thickness d 1 of the tube 2 corresponds to the wall thickness d M of the central region 4 of the finished shaft 1.
  • the outer diameter D 1 of the tube 2 also corresponds to the outer diameter D M of the central region 4 of the shaft 1, so that the central region 4 of the tube 2 or the shaft 1 does not have to be machined.
  • tube 2 is a simply welded tube 2 that is not tightened can be used. This allows in the inventive method a processing step in the manufacture of the tube 2, namely the drawing of the tube 2 can be saved.
  • the pipe 2b shows that the pipe 2, which is partially heated in the end region 3, is compressed axially, so that the pipe 2 has an overall length L 2 ⁇ L 1 .
  • the axial upsetting of the tube 2 leads to a thickening of the wall thickness in the end region 3.
  • the heated region of the tube 2, ie the end region 3 is machined by radial forging with a forging tool 5, as a result of which the desired outer diameter D E is achieved.
  • a multi-stage change in the outside diameter and wall thickness in the end region 3 is achieved by several radial forging processes.
  • the end region 3 has an outer diameter D 2 ⁇ D 1 .
  • a mandrel is inserted into the tube 2 during the axial upsetting and the radial forging of the heated area.
  • the desired wall thickness d E of the shaft 1 is then also determined by the choice of the outside diameter of the mandrel. Because the tube 2 is partially heated, no or significantly reduced work hardening processes occur, which makes a greater degree of deformation possible.
  • the tube 2 shown in FIG. 2 or the shaft 1 shown has, for example, the following outer diameters D and wall thicknesses d in the individual production steps:

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Ceramic Products (AREA)
EP02002515A 2001-04-25 2002-02-02 Procédé pour la production des pièces à symétrie de rotation Expired - Lifetime EP1252946B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10120392A DE10120392B4 (de) 2001-04-25 2001-04-25 Verfahren zum Herstellen von rotationssymmetrischen Bauteilen
DE10120392 2001-04-25

Publications (3)

Publication Number Publication Date
EP1252946A2 true EP1252946A2 (fr) 2002-10-30
EP1252946A3 EP1252946A3 (fr) 2003-10-08
EP1252946B1 EP1252946B1 (fr) 2006-04-12

Family

ID=7682753

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02002515A Expired - Lifetime EP1252946B1 (fr) 2001-04-25 2002-02-02 Procédé pour la production des pièces à symétrie de rotation

Country Status (5)

Country Link
US (1) US7275407B2 (fr)
EP (1) EP1252946B1 (fr)
JP (1) JP2002321035A (fr)
AT (1) ATE322949T1 (fr)
DE (2) DE10120392B4 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1997569A1 (fr) * 2007-05-22 2008-12-03 Benteler Automobiltechnik GmbH Procédé de traitement des extrémités de tuyaux
CN100460138C (zh) * 2004-08-19 2009-02-11 中国北车集团大同电力机车有限责任公司 法兰式台阶薄壁长套类锻件的整体随形锻造方法
DE102007053551A1 (de) * 2007-11-07 2009-05-28 Rauschnabel, Eberhard, Dr.-Ing. Verfahren zu Querschnittsveränderungen an Hohlteilen
DE102010015835A1 (de) 2010-04-20 2011-10-20 IFUTEC Ingenieurbüro für Umformtechnik GmbH Verfahren zum maschinellen Herstellen von zylinderförmigen Werkstücken
CN102581153A (zh) * 2012-01-06 2012-07-18 昌河飞机工业（集团）有限责任公司 一种收口拉杆加工方法
CN101987343B (zh) * 2009-08-07 2012-12-05 上海重型机器厂有限公司 核电设备锥形筒体的锻造方法
DE102011086125B4 (de) * 2010-12-07 2015-07-02 Nsk Deutschland Gmbh Rohrverdickungsverfahren, derart gefertigtes Lenkrohr und Fahrzeug mit derartigem Lenkrohr

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080061555A1 (en) * 2005-02-16 2008-03-13 Colin Knight Flared cone fitting
US7776166B2 (en) * 2006-12-05 2010-08-17 Praxair Technology, Inc. Texture and grain size controlled hollow cathode magnetron targets and method of manufacture
US20100068428A1 (en) * 2007-05-26 2010-03-18 Neumayer Tekfor Holding Gmbh Method for Producing Hollow Shaft Base Bodies and Hollow Shaft Base Body Produced Thereby
US7922593B2 (en) * 2008-10-23 2011-04-12 American Axle & Manufacturing, Inc. Driveshaft assembly
DE102012106423A1 (de) * 2012-07-17 2014-01-23 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines Rohrstabilisators für ein Kraftfahrzeug
KR101389193B1 (ko) 2012-09-11 2014-04-24 현대위아 주식회사 등속조인트용 샤프트의 제조방법
CN104668892B (zh) * 2013-12-02 2018-01-16 江西昌河航空工业有限公司 直升机收口拉杆加工工艺方法
DE102014014818A1 (de) * 2014-04-06 2015-11-12 IFUTEC Ingenieurbüro für Umformtechnik GmbH Warm-Kalt-Umformung von Hohlkörpern
WO2016162857A1 (fr) * 2015-04-10 2016-10-13 Tecniforja – Forjagem E Estampagem De Peças Técnicas, Lda Forgeage d'acier à chaud sur presse horizontale
JP6521914B2 (ja) * 2016-07-26 2019-05-29 トヨタ自動車株式会社 製造方法、スタビライザの製造方法およびスタビライザ製造用金型
US11122741B2 (en) * 2018-01-30 2021-09-21 Cnh Industrial America Llc Stalk roller assembly for an agricultural system
DE102018005356A1 (de) * 2018-07-05 2020-01-09 Neumayer Tekfor Engineering Gmbh Verfahren und Herstellungsvorrichtung zur Herstellung eines Rohrs sowie entsprechend hergestelltes Rohr
KR102174259B1 (ko) * 2018-09-28 2020-11-04 일진제강(주) 업세팅 공법을 이용한 중공 드라이브 샤프트 및 이의 제조 방법

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2133091A (en) * 1936-10-07 1938-10-11 Clark Equipment Co Axle and method of forming same
US2256065A (en) * 1939-10-21 1941-09-16 Pittsburgh Steel Co Tubular car axle and method for making it
DE1804673A1 (de) * 1968-10-23 1970-06-11 Benteler Werke Ag Achse fuer Kraftfahrzeuge od.dgl.und Verfahren zu deren Herstellung
DE3142480A1 (de) * 1980-12-22 1982-07-22 GFM-Gesellschaft für Fertigungstechnik und Maschinenbau GmbH, 4403 Steyr "verfahren zum herstellen oertlicher mantelverstaerkungen an hohlkoerpern"
US4380480A (en) * 1981-01-20 1983-04-19 Vallourec Method of making one-piece tubular axle blanks and the produced axle blanks

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US2054244A (en) * 1936-07-10 1936-09-15 William W Criley Method of extruding socket forgings
US3564896A (en) * 1965-09-03 1971-02-23 North American Rockwell Method of making axle beam
US3585832A (en) * 1968-06-14 1971-06-22 Battelle Development Corp Metal working
DE2812803C2 (de) * 1978-03-23 1982-11-18 Laeis-Werke Ag, 5500 Trier Vorrichtung zum Anstauchen von Rohrenden, insbesondere für Bohrgestängerohre mit Vorschweißverbindern
JPS63149038A (ja) * 1986-12-15 1988-06-21 Nippon Steel Corp 外アツプセツト・プレスによる鋼管端部の加工方法
DE19818653A1 (de) * 1998-04-25 1999-10-28 Bpw Bergische Achsen Kg Verfahren zur Herstellung eines einteiligen Achskörpers sowie nach dem Verfahren hergestellter Achskörper

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2133091A (en) * 1936-10-07 1938-10-11 Clark Equipment Co Axle and method of forming same
US2256065A (en) * 1939-10-21 1941-09-16 Pittsburgh Steel Co Tubular car axle and method for making it
DE1804673A1 (de) * 1968-10-23 1970-06-11 Benteler Werke Ag Achse fuer Kraftfahrzeuge od.dgl.und Verfahren zu deren Herstellung
DE3142480A1 (de) * 1980-12-22 1982-07-22 GFM-Gesellschaft für Fertigungstechnik und Maschinenbau GmbH, 4403 Steyr "verfahren zum herstellen oertlicher mantelverstaerkungen an hohlkoerpern"
US4380480A (en) * 1981-01-20 1983-04-19 Vallourec Method of making one-piece tubular axle blanks and the produced axle blanks

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100460138C (zh) * 2004-08-19 2009-02-11 中国北车集团大同电力机车有限责任公司 法兰式台阶薄壁长套类锻件的整体随形锻造方法
EP1997569A1 (fr) * 2007-05-22 2008-12-03 Benteler Automobiltechnik GmbH Procédé de traitement des extrémités de tuyaux
DE102007053551A1 (de) * 2007-11-07 2009-05-28 Rauschnabel, Eberhard, Dr.-Ing. Verfahren zu Querschnittsveränderungen an Hohlteilen
CN101987343B (zh) * 2009-08-07 2012-12-05 上海重型机器厂有限公司 核电设备锥形筒体的锻造方法
DE102010015835A1 (de) 2010-04-20 2011-10-20 IFUTEC Ingenieurbüro für Umformtechnik GmbH Verfahren zum maschinellen Herstellen von zylinderförmigen Werkstücken
DE102011086125B4 (de) * 2010-12-07 2015-07-02 Nsk Deutschland Gmbh Rohrverdickungsverfahren, derart gefertigtes Lenkrohr und Fahrzeug mit derartigem Lenkrohr
CN102581153A (zh) * 2012-01-06 2012-07-18 昌河飞机工业（集团）有限责任公司 一种收口拉杆加工方法

Also Published As

Publication number Publication date
US20020160844A1 (en) 2002-10-31
US7275407B2 (en) 2007-10-02
DE10120392B4 (de) 2004-09-23
EP1252946B1 (fr) 2006-04-12
ATE322949T1 (de) 2006-04-15
DE50206354D1 (de) 2006-05-24
EP1252946A3 (fr) 2003-10-08
JP2002321035A (ja) 2002-11-05
DE10120392A1 (de) 2002-10-31

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