WO2011120062A1 - Procédé pour fabriquer des essieux de roue, en particulier pour des wagons ferroviaires - Google Patents

Procédé pour fabriquer des essieux de roue, en particulier pour des wagons ferroviaires Download PDF

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Publication number
WO2011120062A1
WO2011120062A1 PCT/AT2011/000145 AT2011000145W WO2011120062A1 WO 2011120062 A1 WO2011120062 A1 WO 2011120062A1 AT 2011000145 W AT2011000145 W AT 2011000145W WO 2011120062 A1 WO2011120062 A1 WO 2011120062A1
Authority
WO
WIPO (PCT)
Prior art keywords
forging
inner diameter
forging blank
blank
hollow
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
PCT/AT2011/000145
Other languages
German (de)
English (en)
Inventor
Rupert Wieser
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.)
GFM GmbH
Original Assignee
GFM 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=44276252&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2011120062(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by GFM GmbH filed Critical GFM GmbH
Priority to UAA201211473A priority Critical patent/UA107959C2/ru
Priority to EP11714912.0A priority patent/EP2552614B1/fr
Priority to CN201180026816.6A priority patent/CN102933329B/zh
Priority to BR112012024426A priority patent/BR112012024426A2/pt
Priority to RU2012145872/02A priority patent/RU2538136C2/ru
Publication of WO2011120062A1 publication Critical patent/WO2011120062A1/fr
Anticipated expiration legal-status Critical
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
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles 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
    • B21K1/063—Making machine elements axles or shafts hollow
    • 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

Definitions

  • the invention relates to a method for producing wheel axles, in particular for railway carriages, with a hollow axle body which forms stub axles opposite the thickened bearing seats and has a smaller internal diameter for the stub axles compared with an enlarged inner diameter between the bearing seats, the outer shape of the stub axle Axle body is forged.
  • the invention is therefore based on the object, a method for the production of wheel axles, in particular for railway cars, of the type described in such a way that an advantageous non-cutting machining of the axle body is made possible.
  • the invention achieves the stated object by forging a hollow forging blank having an inner diameter corresponding at least to the enlarged inner diameter of the axle body in the axial direction, using a forging mandrel having a shaped section for the enlarged inner diameter of the axle body, before the extended inner diameter forming section is made from a Extracted from the end of the hollow forging blank and the forged portion of the forging blank with the smaller inner diameter is forged by means of a forging mandrel with a smaller inner diameter section of the forging blank.
  • the two axle stubs must be forged at the opposite ends of the axle body, which requires a separate mandrel with a shaped section adapted to the smaller inside diameter.
  • the subsequent forging of the Achs stressesabitess with the expanded inner diameter between the two bearing seats requires axial relative movement between the forging blank and the forging mandrel when the molding portion of the wrought mandrel for the extended inner diameter has a shorter axial length than the Achsharmabrough with the expanded inner diameter.
  • For the final forging of the second stub axle of the forging mandrel is far enough to pull out of the forging blank that only the mold portion engages with the matched to the inner diameter of the stub axle outer diameter in the largely processed forging blank, so that for the forging of this stub axle a corresponding support on the stepped mold section of graded forge.
  • the forging blank may for example be made of a solid material by a punching in a known manner, wherein the thickened bearing seats are forged with a larger outside diameter before punching the forging blank produced in this way is subjected to the inventive method for forging the axle body.
  • a pressed hollow body or a seamless tube as forging blank. While generally pressed hollow bodies can readily be provided with a wall thickness sufficient to form the thickened bearing seats, larger wall thicknesses can create difficulties for seamless tubes. For this reason, it may be advantageous that the forging blank is upset before forging in the thickened bearing seats.
  • Such upsetting in the area of the thickened bearing seats has the advantage that less forging deformation is required in the area outside of these bearing seats.
  • the forgings heated up for forging are prone to scale. While the descaling takes place automatically when forging the outer surface, scaling in the interior of the later hollow axle body can lead to impairments of the surface quality in the cavity of the wheel axles.
  • the inner surface of the hollow forging blank may be descaled before forging, for example by means of a mandrel insertable into the hollow forging blank, which may be formed as a brush or provided with scrapers for the mechanical removal of scale layers.
  • water can also be sprayed under high pressure into the hollow forging blank, advantageously via the descaling mandrel.
  • the cavity of the forging blank is at least substantially closed at the end during the forging process, then the escape of the protective agent introduced via the forge mandrel from the cavity of the forging blank can be avoided in a simple manner, whereby advantageous process conditions can be achieved with regard to the suppression of scale formation.
  • FIG. 1 shows a wheel axle to be produced in a simplified longitudinal section
  • FIG. 2 shows a forging apparatus for carrying out the method according to the invention for producing wheel axles according to FIG. 1, in particular for railway carriages, in a schematic side view, partly torn open and
  • FIG. 1 shows a wheel axle to be produced in a simplified longitudinal section
  • FIG. 2 shows a forging apparatus for carrying out the method according to the invention for producing wheel axles according to FIG. 1, in particular for railway carriages, in a schematic side view, partly torn open
  • FIG. 1 shows a wheel axle to be produced in a simplified longitudinal section
  • FIG. 2 shows a forging apparatus for carrying out the method according to the invention for producing wheel axles according to FIG. 1, in particular for railway carriages, in a schematic side view, partly torn open
  • FIG. 1 shows a wheel axle to be produced in a simplified longitudinal section
  • FIG. 2 shows a forging apparatus for carrying out the method according to the invention for producing wheel axles according to FIG. 1, in particular
  • this forging device fragmentary in the area between the two clamping heads on both sides of the forging tools in a schematic longitudinal section in different working positions.
  • the wheel axle to be forged has a hollow axle body 1 with two thickened bearing seats 2 and with stub axles 3 offset from these bearing seats 2 for wheel suspension. take up.
  • the illustrated apparatus for producing a wheel axle for railway cars with an axle 1 according to the Fig. 1 comprises according to FIG. 2 in a conventional manner pairwise opposed forging tools 7, for example in the form of forging hammers, between which the tubular forging blank 8 with a simultaneous rotation to its axis is conveyed through axially to its processing.
  • 7 clamping heads 9, 10 are provided on both sides of the forging tools, which are rotatably mounted in a respective housing 11 and with the aid of the housing 11 along a guide bed 12 can be moved.
  • the intermittent rotary drive for the clamping heads 9, 10 is not shown for reasons of clarity.
  • a stepped forging mandrel 13 is mounted axially adjustable, which forms an end-side mold portion 14 with an inner diameter of the stub axle 3 corresponding outer diameter and an adjoining mold portion 15 for the enlarged cylindrical cavity 5 of the Achs stressesabitess 4.
  • the opposite chuck 10 is associated with a likewise axially adjustable mandrel 16, which serves for descaling the inner surface of the hollow forging blank 8 and for example, a brush head 17 carries, in addition to nozzles not shown for acting on the inner surface of the hollow forging blanket 8 with water under high pressure Support the descaling of the inner surface of the forging blank 8 can be equipped.
  • a hollow, tubular forging blank 8 is used, which in the selected embodiment Having an adapted to the dimensions of the bearing seats 2 of the axle body 1 outer diameter with a corresponding wall thickness.
  • This forging blank 8 is clamped after a corresponding heating to a predetermined forging temperature in the chuck 9 and axially advanced against the opposite chuck 10 to descaling its inner surface by means of the brush head 17 which is pushed over the mandrel 16 in the hollow forging blank 8, such as this is indicated in Fig. 2 by an arrow.
  • the forging of the adjoining the bearing seat 2 Achs stressesabitess 4 with the extended cylindrical cavity 5 requires a reduction of the outer diameter of the mold blank 8.
  • the inner diameter of the enlarged cavity 5 defining mold portion 15 of the forged mandrel 16 is to hold against the forging area, resulting in an axial forging advance of the forging blank 8 by the chuck 9 a forging corresponding retraction of the forging mandrel 13 conditions to support the forging blank 8 during the forging process on the mold section 15 of the forging mandrel 13 can.
  • the bearing head 2 closer to the clamping head 9 can be forged, specifically via the mold section 15 of the forging mandrel 13, as can be seen in FIG. 5.
  • the chuck 10 must take over the feed drive for the Schmiederohiing 8 in order to use the forging tools 7 unhindered by the chuck 9 can.
  • a corresponding protective agent can be introduced into the hollow forging blank 8 by the forging mandrel 15.
  • a corresponding protective conduit 18 through the forging mandrel 13 is indicated by dash-dotted lines.
  • Protective gas, but also a protective liquid can be used as protective agent.
  • the brush head 14 of the mandrel 16 is used for this purpose.
  • On the opposite end face of the forging blank could be provided in Figs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

L'invention concerne un procédé pour fabriquer des essieux de roue, en particulier pour des wagons ferroviaires, comprenant un corps d'essieu creux (1), qui forme des fusées d'essieu (3) déportées par rapport à des sièges de palier épaissis (2), pour le logement de roue, et présente pour les fusées d'essieu (3) un diamètre intérieur plus petit par rapport à un diamètre intérieur élargi entre les sièges de palier (2), la forme extérieure du corps d'essieu (1) étant forgée. Afin d'éviter un usinage avec enlèvement de copeaux, l'invention propose qu'une pièce brute à forger (8), creuse, ayant un diamètre intérieur correspondant au moins au diamètre intérieur élargi du corps d'essieu (1), soit forgée en utilisant un mandrin de forgeage (13) doté d'une partie moulée (15) pour le diamètre intérieur élargi du corps d'essieu (1), en progressant dans la direction de l'essieu, avant que la partie moulée (15) pour le diamètre intérieur élargi soit sortie d'une extrémité de la pièce brute creuse à forger (8) et que la partie encore non forgée de la pièce brute à forger (8) ayant le plus petit diamètre intérieur soit forgée à l'aide d'un mandrin de forgeage (13) ayant une partie moulée (14) pour le diamètre intérieur plus petit de la pièce brute à forger (8).
PCT/AT2011/000145 2010-03-29 2011-03-24 Procédé pour fabriquer des essieux de roue, en particulier pour des wagons ferroviaires Ceased WO2011120062A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
UAA201211473A UA107959C2 (en) 2010-03-29 2011-03-24 Method for producing wheel axles, in particular for rail cars
EP11714912.0A EP2552614B1 (fr) 2010-03-29 2011-03-24 Procédé de fabrication d'essieux, en particulier pour véhicules ferroviares
CN201180026816.6A CN102933329B (zh) 2010-03-29 2011-03-24 用于制造轮轴、尤其是用于铁路车辆的轮轴的方法
BR112012024426A BR112012024426A2 (pt) 2010-03-29 2011-03-24 processo para a produção de eixos de rodas, especialmente para vagões ferroviários
RU2012145872/02A RU2538136C2 (ru) 2010-03-29 2011-03-24 Способ изготовления колесных осей, в частности для железнодорожных вагонов

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA497/2010 2010-03-29
ATA497/2010A AT509642B1 (de) 2010-03-29 2010-03-29 Verfahren zum herstellen von radachsen, insbesondere für eisenbahnwagen

Publications (1)

Publication Number Publication Date
WO2011120062A1 true WO2011120062A1 (fr) 2011-10-06

Family

ID=44276252

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2011/000145 Ceased WO2011120062A1 (fr) 2010-03-29 2011-03-24 Procédé pour fabriquer des essieux de roue, en particulier pour des wagons ferroviaires

Country Status (7)

Country Link
EP (1) EP2552614B1 (fr)
CN (1) CN102933329B (fr)
AT (1) AT509642B1 (fr)
BR (1) BR112012024426A2 (fr)
RU (1) RU2538136C2 (fr)
UA (1) UA107959C2 (fr)
WO (1) WO2011120062A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013226929A1 (de) * 2013-12-20 2015-06-25 Volkswagen Aktiengesellschaft Verfahren und Vorrichtung zur Herstellung einer Hohlwelle durch Radialumformen sowie hiermit hergestellte Hohlwelle
DE102014214708B3 (de) * 2014-07-25 2015-11-12 Sms Meer Gmbh Verfahren zum Herstellen einer Mehrfach-Eisenbahnradsatzwelle sowie Radialschmiedemaschine
CN119839217A (zh) * 2025-03-19 2025-04-18 山东富源履带机械有限公司 一种具有自动清理功能的连续性锻造装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104043769B (zh) * 2013-03-14 2016-03-02 雷帮荣 热挤压空心车轴直接成型工艺
DE102014218766A1 (de) * 2014-09-18 2016-03-24 Zf Friedrichshafen Ag Welle, Getriebe sowie Verfahren zur Herstellung einer Welle
DE102014218768A1 (de) * 2014-09-18 2016-03-24 Zf Friedrichshafen Ag Welle, Getriebe sowie Verfahren zur Herstellung einer Welle
CN107413884B (zh) * 2017-05-11 2019-12-27 泰州驰骏智能设备有限公司 一种用于管类零件的中缩装置
DE102021203374A1 (de) * 2021-04-06 2022-10-06 Magna powertrain gmbh & co kg Verfahren zur Herstellung einer Polygonwelle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2256065A (en) * 1939-10-21 1941-09-16 Pittsburgh Steel Co Tubular car axle and method for making it
DE19523280A1 (de) * 1995-06-27 1997-01-02 Gfm Gmbh Schmiedemaschine zum Innenprofilieren von rohrförmigen Werkstücken
DE102005052178A1 (de) * 2004-10-25 2006-04-27 V&M Deutschland Gmbh Verfahren zum Herstellen eines nahtlos warmgefertigten Stahlrohres
FR2926739A1 (fr) * 2008-01-24 2009-07-31 Vallourec & Mannesmann Tubes S Essieu forge a partir de tube sans soudure pour des vehicules de chemin de fer et du procede de fabrication d'essieu forge a partir de tube sans soudure pour des vehicules de chemin de fer

Family Cites Families (7)

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DE653067C (de) * 1934-11-21 1937-11-13 Ver Oberschlesische Huettenwer Verfahren zur Herstellung von Hohlachsen fuer Eisenbahnfahrzeuge
US4208900A (en) * 1977-03-02 1980-06-24 Lear Siegler, Inc. Axle spindle forming apparatus
AT501152B8 (de) * 2003-12-30 2007-02-15 Gfm Beteiligungs & Man Gmbh Verfahren und vorrichtung zum herstellen eines zylindrischen hohlkörpers aus einem rohling
DE102004056147B3 (de) * 2004-11-20 2006-08-03 Gkn Driveline International Gmbh Reduzieren von Rohren über einem abgesetzten Dorn zur Herstellung von Hohlwellen mit Hinterschnitt in einer Operation
UA16304U (en) * 2005-09-20 2006-08-15 Dnipropetrovsk Academician V L Method of manufacture of hollow axle of the pair of wheels of rolling stock
RU2315673C2 (ru) * 2006-02-08 2008-01-27 ОАО "Челябинский трубопрокатный завод" Способ производства горячекатаных товарных и передельных труб большого и среднего диаметров из коррозионно-стойких труднодеформируемых марок стали и сплавов на трубопрокатных установках с пилигримовыми станами
BRPI0704944A8 (pt) * 2007-11-30 2017-08-15 V & M Do Brasil S/A Eixo forjado de tubo sem costura para veículos ferroviários e processo de fabricação de eixo forjado de tubo sem costura para veículos ferroviários

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2256065A (en) * 1939-10-21 1941-09-16 Pittsburgh Steel Co Tubular car axle and method for making it
DE19523280A1 (de) * 1995-06-27 1997-01-02 Gfm Gmbh Schmiedemaschine zum Innenprofilieren von rohrförmigen Werkstücken
DE102005052178A1 (de) * 2004-10-25 2006-04-27 V&M Deutschland Gmbh Verfahren zum Herstellen eines nahtlos warmgefertigten Stahlrohres
FR2926739A1 (fr) * 2008-01-24 2009-07-31 Vallourec & Mannesmann Tubes S Essieu forge a partir de tube sans soudure pour des vehicules de chemin de fer et du procede de fabrication d'essieu forge a partir de tube sans soudure pour des vehicules de chemin de fer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013226929A1 (de) * 2013-12-20 2015-06-25 Volkswagen Aktiengesellschaft Verfahren und Vorrichtung zur Herstellung einer Hohlwelle durch Radialumformen sowie hiermit hergestellte Hohlwelle
DE102013226929B4 (de) * 2013-12-20 2025-12-31 Volkswagen Aktiengesellschaft Verfahren zur umformenden Herstellung einer Hohlwelle
DE102014214708B3 (de) * 2014-07-25 2015-11-12 Sms Meer Gmbh Verfahren zum Herstellen einer Mehrfach-Eisenbahnradsatzwelle sowie Radialschmiedemaschine
AT516106A3 (de) * 2014-07-25 2018-06-15 Sms Meer Gmbh Verfahren zum Herstellen einer Mehrfach-Eisenbahnradsatzwelle, Radialschmiedemaschine sowie Verwendung einer Radialschmiedemaschine
AT516106B1 (de) * 2014-07-25 2018-08-15 Sms Meer Gmbh Verfahren zum Herstellen einer Mehrfach-Eisenbahnradsatzwelle, Radialschmiedemaschine sowie Verwendung einer Radialschmiedemaschine
CN119839217A (zh) * 2025-03-19 2025-04-18 山东富源履带机械有限公司 一种具有自动清理功能的连续性锻造装置

Also Published As

Publication number Publication date
AT509642A1 (de) 2011-10-15
CN102933329A (zh) 2013-02-13
BR112012024426A2 (pt) 2016-05-31
UA107959C2 (en) 2015-03-10
RU2012145872A (ru) 2014-05-10
AT509642B1 (de) 2013-03-15
CN102933329B (zh) 2016-03-02
EP2552614B1 (fr) 2017-07-12
RU2538136C2 (ru) 2015-01-10
EP2552614A1 (fr) 2013-02-06

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