EP1046440A1 - Procédé de forgeage de pièces métalliques à symétrie axiale - Google Patents

Procédé de forgeage de pièces métalliques à symétrie axiale Download PDF

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Publication number
EP1046440A1
EP1046440A1 EP99810319A EP99810319A EP1046440A1 EP 1046440 A1 EP1046440 A1 EP 1046440A1 EP 99810319 A EP99810319 A EP 99810319A EP 99810319 A EP99810319 A EP 99810319A EP 1046440 A1 EP1046440 A1 EP 1046440A1
Authority
EP
European Patent Office
Prior art keywords
forming
workpiece
extrusion
die
temperature
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.)
Withdrawn
Application number
EP99810319A
Other languages
German (de)
English (en)
Inventor
Hansruedi Huwiler
Kurt Dr. Steinhoff
Ursula Weidig
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.)
SM Schweizerische Munitionsunternehmung AG
Original Assignee
SM Schweizerische Munitionsunternehmung AG
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 SM Schweizerische Munitionsunternehmung AG filed Critical SM Schweizerische Munitionsunternehmung AG
Priority to EP99810319A priority Critical patent/EP1046440A1/fr
Priority to AT00914010T priority patent/ATE253422T1/de
Priority to AU35487/00A priority patent/AU3548700A/en
Priority to DE50004335T priority patent/DE50004335D1/de
Priority to PCT/CH2000/000212 priority patent/WO2000062956A1/fr
Priority to EP00914010A priority patent/EP1171252B1/fr
Publication of EP1046440A1 publication Critical patent/EP1046440A1/fr
Withdrawn legal-status Critical Current

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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
    • B21K1/00—Making machine elements
    • B21K1/06—Making machine elements axles or shafts
    • 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
    • B21J5/08—Upsetting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/02—Special design or construction
    • B21J9/06—Swaging presses; Upsetting presses
    • B21J9/08—Swaging presses; Upsetting presses equipped with devices for heating the work-piece
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2221/00—Treating localised areas of an article

Definitions

  • the present invention relates to a method according to the preamble of claim 1.
  • the dimensional accuracy and surface quality should correspond to that of cold forming.
  • the method should allow in connection with Follow-up operations of individual process steps, such as repressing, Switch off hardening, polishing, cutting or cutting etc., to simplify or cheapen.
  • the invention is based on the knowledge that the ability to change shape is not a pure material property but also depends on the process conditions.
  • a local adaptation of the Resilience to the desired deformation by means of targeted heating of the workpiece using a combination of cold and hot forming, which has the advantages the good forming on the warm workpiece with the advantages of cold forming, such as material hardening, dimensional accuracy and high surface quality.
  • the cold forming or the resulting thereof Solidification through a specifically influenced Temperature curve on the workpiece can be optimized.
  • the heat treatment before, during and after cross extrusion can be known by means known per se, such as induction heating, Flame or laser.
  • the preheating of the workpiece can be inductive be carried out during the targeted introduction of Process heat on the press, through a timely and targeted guided high energy laser beam.
  • Heat can also be dissipated using cooled grippers etc. to be controlled.
  • a blank 100 is in its central area 40 by a heat source 30 above its recrystallization temperature warmed up.
  • he will with its shaft placed in a die 20 and through one Stamp 10 gripped on its shaft diameter and with a force F deformed so that an axially symmetric Bund (flange) is created.
  • the blank 100 is shown individually and with Provide dimension lines; the shaft diameter is d1, the lower shaft diameter d2 and length L0.
  • FIG Pressing 100 results from the method shown in FIG Pressing 100 'according to FIG. 3, which for example as Gear shaft is used.
  • the cross extrusion has the original length L0 reduced to L1, in one area of material forming S1 are thickened material on the shaft noticeable; a bundle was pressed with a Diameter D and a collar width S2.
  • the hardening behavior is modified locally so that the resilience of the shape change to be achieved is adjusted. So there is a "tailoring" of the material property the forming process. So then local degrees of deformation very much greater than 1.0 without intermediate annealing possible. Since the procedure is essentially a Cold cross extrusion remains is a comparable accuracy the final shape and a desired increase in strength guaranteed. By customizing the chosen local Temperature and controlled cooling can be a in in practice sufficient strength of the hot or semi-hot formed Federal generated.
EP99810319A 1999-04-16 1999-04-16 Procédé de forgeage de pièces métalliques à symétrie axiale Withdrawn EP1046440A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP99810319A EP1046440A1 (fr) 1999-04-16 1999-04-16 Procédé de forgeage de pièces métalliques à symétrie axiale
AT00914010T ATE253422T1 (de) 1999-04-16 2000-04-12 Verfahren zur massivumformung von axial- symmetrischen metallischen bauteilen
AU35487/00A AU3548700A (en) 1999-04-16 2000-04-12 Method for massive forming axisymmetric metal components
DE50004335T DE50004335D1 (de) 1999-04-16 2000-04-12 Verfahren zur massivumformung von axial-symmetrischen metallischen bauteilen
PCT/CH2000/000212 WO2000062956A1 (fr) 1999-04-16 2000-04-12 Procede pour le formage de pieces metalliques massives axisymetriques
EP00914010A EP1171252B1 (fr) 1999-04-16 2000-04-12 Procede pour le formage de pieces metalliques massives axisymetriques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99810319A EP1046440A1 (fr) 1999-04-16 1999-04-16 Procédé de forgeage de pièces métalliques à symétrie axiale

Publications (1)

Publication Number Publication Date
EP1046440A1 true EP1046440A1 (fr) 2000-10-25

Family

ID=8242776

Family Applications (2)

Application Number Title Priority Date Filing Date
EP99810319A Withdrawn EP1046440A1 (fr) 1999-04-16 1999-04-16 Procédé de forgeage de pièces métalliques à symétrie axiale
EP00914010A Expired - Lifetime EP1171252B1 (fr) 1999-04-16 2000-04-12 Procede pour le formage de pieces metalliques massives axisymetriques

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP00914010A Expired - Lifetime EP1171252B1 (fr) 1999-04-16 2000-04-12 Procede pour le formage de pieces metalliques massives axisymetriques

Country Status (5)

Country Link
EP (2) EP1046440A1 (fr)
AT (1) ATE253422T1 (fr)
AU (1) AU3548700A (fr)
DE (1) DE50004335D1 (fr)
WO (1) WO2000062956A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007001515A1 (de) * 2007-01-10 2008-07-17 Gesenkschmiede Schneider Gmbh Ventil mit Flügeln und Herstellungsverfahren
CN102120293A (zh) * 2010-12-30 2011-07-13 江苏森威集团有限责任公司 一种电枢轴的精密锻造加工方法
CN102357552A (zh) * 2011-08-18 2012-02-22 南京通用电器有限公司 传动轴压方及制造传动轴的方法
EP2460617A1 (fr) * 2010-12-01 2012-06-06 Robert Bosch GmbH Procédé de fabrication d'une broche filetée dotée d'un grand palier
CN105750840A (zh) * 2016-04-21 2016-07-13 苏州市东盛锻造有限公司 三通锻件的锻造方法
CN105903871A (zh) * 2016-04-21 2016-08-31 苏州市东盛锻造有限公司 羊头的锻造方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2865949B1 (fr) * 2004-02-11 2006-05-19 Commissariat Energie Atomique Presse hybride pour le formage de pieces de fortes dimensions
DE102009009982A1 (de) 2009-02-23 2010-08-26 Unikassel Transfer Gmbh Metakus - Anwendungszentrum Metallformgebung Verfahren zur Herstellung innen- und außenprofilierter Werkstücke
WO2016103316A1 (fr) * 2014-12-22 2016-06-30 株式会社日立製作所 Forme de matériau pour refoulage à chaud

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1408570A (fr) * 1964-09-22 1965-08-13 Hasenclever Ag Maschf Presse électrique à refouler pour pièces brutes en forme de tiges chauffées par effet joule
US3399290A (en) * 1965-07-23 1968-08-27 Gen Motors Corp Iridium heading process
JPS59130641A (ja) * 1983-01-15 1984-07-27 Akira Yusa 端部に膨大部を有する金属棒の製造方法及び装置
EP0157894A1 (fr) * 1984-04-11 1985-10-16 Hitachi, Ltd. Procédé et dispositif pour l'augmentation de l'épaisseur de tubes
DE19746235A1 (de) * 1996-11-02 1998-05-07 Volkswagen Ag Verfahren zur Herstellung eines Tellerventiles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1408570A (fr) * 1964-09-22 1965-08-13 Hasenclever Ag Maschf Presse électrique à refouler pour pièces brutes en forme de tiges chauffées par effet joule
US3399290A (en) * 1965-07-23 1968-08-27 Gen Motors Corp Iridium heading process
JPS59130641A (ja) * 1983-01-15 1984-07-27 Akira Yusa 端部に膨大部を有する金属棒の製造方法及び装置
EP0157894A1 (fr) * 1984-04-11 1985-10-16 Hitachi, Ltd. Procédé et dispositif pour l'augmentation de l'épaisseur de tubes
DE19746235A1 (de) * 1996-11-02 1998-05-07 Volkswagen Ag Verfahren zur Herstellung eines Tellerventiles

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 008, no. 258 (M - 340) 27 November 1984 (1984-11-27) *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007001515A1 (de) * 2007-01-10 2008-07-17 Gesenkschmiede Schneider Gmbh Ventil mit Flügeln und Herstellungsverfahren
DE102007001515B4 (de) * 2007-01-10 2009-10-29 Gesenkschmiede Schneider Gmbh Verfahren zum Herstellen eines Ventils mit mindestens einem Flügel, sowie danach hergestelltes Ventil
EP2460617A1 (fr) * 2010-12-01 2012-06-06 Robert Bosch GmbH Procédé de fabrication d'une broche filetée dotée d'un grand palier
US20120138199A1 (en) * 2010-12-01 2012-06-07 Robert Bosch Gmbh Process for Producing a Threaded Spindle having a Large Bearing Seat
US9815153B2 (en) 2010-12-01 2017-11-14 Robert Bosch Gmbh Process for producing a threaded spindle having a large bearing seat
CN102120293A (zh) * 2010-12-30 2011-07-13 江苏森威集团有限责任公司 一种电枢轴的精密锻造加工方法
CN102357552A (zh) * 2011-08-18 2012-02-22 南京通用电器有限公司 传动轴压方及制造传动轴的方法
CN105750840A (zh) * 2016-04-21 2016-07-13 苏州市东盛锻造有限公司 三通锻件的锻造方法
CN105903871A (zh) * 2016-04-21 2016-08-31 苏州市东盛锻造有限公司 羊头的锻造方法

Also Published As

Publication number Publication date
DE50004335D1 (de) 2003-12-11
WO2000062956A1 (fr) 2000-10-26
ATE253422T1 (de) 2003-11-15
EP1171252A1 (fr) 2002-01-16
EP1171252B1 (fr) 2003-11-05
AU3548700A (en) 2000-11-02

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