EP1003616A1 - Procede et dispositif pour le formage, notamment pour le formage a froid, de pieces - Google Patents

Procede et dispositif pour le formage, notamment pour le formage a froid, de pieces

Info

Publication number
EP1003616A1
EP1003616A1 EP98943813A EP98943813A EP1003616A1 EP 1003616 A1 EP1003616 A1 EP 1003616A1 EP 98943813 A EP98943813 A EP 98943813A EP 98943813 A EP98943813 A EP 98943813A EP 1003616 A1 EP1003616 A1 EP 1003616A1
Authority
EP
European Patent Office
Prior art keywords
stroke
feed
workpiece
deformation die
frequency generating
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
EP98943813A
Other languages
German (de)
English (en)
Other versions
EP1003616B1 (fr
Inventor
Fritz Binhack
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.)
Feiss GmbH
Original Assignee
Gebr Felss GmbH and Co 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
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7839120&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1003616(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Gebr Felss GmbH and Co KG filed Critical Gebr Felss GmbH and Co KG
Publication of EP1003616A1 publication Critical patent/EP1003616A1/fr
Application granted granted Critical
Publication of EP1003616B1 publication Critical patent/EP1003616B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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 OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • 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
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/004—Extruding metal; Impact extrusion using vibratory energy

Definitions

  • the invention relates to a device for shaping, in particular for cold shaping, in this case in particular for cold extrusion, a workpiece, which has a shaping die and a feed device, by means of which a relative movement between the workpiece and the shaping die can be generated, and a method for shaping, in particular one Cold forming, a workpiece in which a Relative movement between a workpiece and a deformation die is generated.
  • Such a device and such a method are generally known and therefore do not have to be described in more detail.
  • a disadvantage of the known device and the known method is that high feed forces are required to achieve the desired cold deformation of the workpiece.
  • the device provided for carrying out the method has a device with which the anvil can be moved back and forth.
  • the device has a frequency generating device which interacts with the feed device, by means of which the relative movement between the workpiece and the deformation die generated by the feed device can be modulated such that after a forward stroke in which the workpiece is in the feed direction and / or the deformation die traverses a first stroke, in a subsequent backward stroke a movement of the deformation die and / or the workpiece in a direction opposite to the feed direction can be carried out by a second stroke.
  • the relative movement between the workpiece and the deformation die generated by the feed device is modulated such that after a forward stroke in which the workpiece and / or the deformation die passes through a first stroke in the feed direction, a movement takes place in a subsequent reverse stroke the deformation die and / or the workpiece can be carried out in a direction opposite to the feed direction by a second stroke.
  • the measures according to the invention advantageously achieve that the deformation, in particular cold working, for. B. one
  • a workpiece feed force required to achieve a defined final deformation of the workpiece is significantly lower than with a conventional device. This not only has the effect that the energy required to drive the device according to the invention is reduced and significant energy savings are achieved.
  • the lower forces occurring when deforming with the device according to the invention also permit a lighter and therefore less expensive construction of the device according to the invention, as a result of which the production costs are also reduced.
  • the "hammer-like" The application of force to the cold-formed workpiece by the intermittent, stroke-like feed movement advantageously allows high-quality cold forming with minimal effort and wear. Another advantage is that the workpiece is subjected to only slight axial forces, so that buckling and deformation, also in the form of bulges, are largely prevented.
  • FIG. 1 shows a first exemplary embodiment of a device
  • Figure 2 shows a second embodiment of a device.
  • the first exemplary embodiment of a device 1 for cold forming, in particular for cold extrusion, of a workpiece 2 shown in FIG. 1 has a deformation die 3 which can be moved relative to the workpiece 2 by a feed device 5.
  • the feed device 5 thus generates a relative movement between the deformation die 3 and the workpiece 2 clamped in a clamping unit 7. If the deformation die 3 is moved by the feed device 5 in its feed direction P against the workpiece 2 clamped in the case shown here, this occurs Workpiece 2 into the deformation die 3 and is cold-formed in a manner known per se.
  • the movement running in the feed direction P is modified by a frequency generating device 10 such that the deformation die 3 instead of a uniform one in the feed direction P executes a stroke-like movement, in which it is provided that after a forward stroke directed in the feed direction P, in which the deformation die 3 is moved forward by a first stroke, the deformation die 3 in a subsequent reverse stroke through the feed device 5 is withdrawn by a second stroke. In the subsequent forward stroke, the deformation die 3 is moved forward again, specifically beyond the end point of the preceding forward stroke.
  • the deformation die 3 has a higher kinetic energy than it does when it hits the area of the workpiece 2 to be machined in the next step
  • Continuous application of force is the case, since the return movement of the deformation die 3 prior to its renewed acceleration by the feed device 5 in the feed direction P has the effect that during the feed movement the deformation die 3 moves along the region of the workpiece 2 that was cold-deformed in the previous forward stroke and this region essentially can go through without resistance.
  • the retraction of the deformation die 3 before the next step of the cold deformation process has the effect that an improved supply of lubricating oil, which is supplied by a lubricating oil supply device 8 shown schematically in FIG. 1, is improved.
  • the frequency generator 10 generates the forward movement of the deformation die 3 in Feed direction P modulating frequency is in the range of about 5 to 30 Hz and is preferably 10 to 20 Hz.
  • the second stroke path of the backward movement of the deformation die 3 is essentially only half of the first stroke path provided during the feed.
  • the frequency generating device 10 can operate hydraulically, pneumatically or mechanically, although electromagnetic excitation of the frequency modulating the feed movement of the feed device 5 is also conceivable for certain cases.
  • the frequency generating device 10 into the feed device 5, so that the feed movement generated by the feed device 5 is directly modulated. This can be done in particular by the fact that the oil supply to a feed cylinder 5 'of the feed device 5 is regulated servo-hydraulically or proportionally hydraulically, so that the cylinder 5' causing the feed of the deformation die 3 oscillates periodically.
  • the exemplary embodiment of a device 1 'shown in FIG. 2 essentially corresponds to the device 1 of the first exemplary embodiment, so that the same parts can be provided with the same reference numerals and no longer have to be described in more detail.
  • the essential difference between the two exemplary embodiments is that in the device 1 * the deformation die 3 is arranged in a stationary manner, while the workpiece 2 is axially displaceable relative to the deformation die 3. Accordingly, the feed device 5 and the frequency generating device 10 cooperating with it act on the workpiece 2 or on the clamping unit 7 which clamps the workpiece 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Extrusion Of Metal (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
EP98943813A 1997-08-16 1998-07-31 Procede et dispositif pour le formage, notamment pour le formage a froid, de pieces Expired - Lifetime EP1003616B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19735486 1997-08-16
DE19735486A DE19735486C2 (de) 1997-08-16 1997-08-16 Vorrichtung und Verfahren zum Kaltverformen von Werkstücken
PCT/EP1998/004800 WO1999008813A1 (fr) 1997-08-16 1998-07-31 Procede et dispositif pour le formage, notamment pour le formage a froid, de pieces

Publications (2)

Publication Number Publication Date
EP1003616A1 true EP1003616A1 (fr) 2000-05-31
EP1003616B1 EP1003616B1 (fr) 2002-07-10

Family

ID=7839120

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98943813A Expired - Lifetime EP1003616B1 (fr) 1997-08-16 1998-07-31 Procede et dispositif pour le formage, notamment pour le formage a froid, de pieces

Country Status (9)

Country Link
US (1) US6212929B1 (fr)
EP (1) EP1003616B1 (fr)
JP (1) JP3572544B2 (fr)
KR (1) KR100406080B1 (fr)
AT (1) ATE220356T1 (fr)
CA (1) CA2301037C (fr)
DE (2) DE19735486C2 (fr)
ES (1) ES2179530T3 (fr)
WO (1) WO1999008813A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006024505A1 (fr) * 2004-09-02 2006-03-09 Felss Gmbh Dispositif et procede de correction d'une erreur d'obliquite d'un profil polygonal, notamment d'une erreur de direction de dent d'une denture
DE102009019249A1 (de) 2009-04-30 2010-11-18 Felss Gmbh Verfahren zur Herstellung eines Profils in einer Wand eines Werkstücks

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10027703B4 (de) * 2000-06-03 2005-03-03 Sms Demag Ag Verfahren und Vorrichtung zum Umformen, insbesondere Fließpressen eines metallischen Werkstücks
GB0117066D0 (en) * 2001-07-12 2001-09-05 Bae Systems Plc Creep forming a metallic compound
DE10258492B4 (de) * 2002-12-14 2006-09-14 Felss Gmbh Verfahren zur Herstellung eines rohrförmigen Werkstücks sowie ein zur Durchführung des Verfahrens besonders geeignetes Werkzeug
US6931904B2 (en) 2003-10-27 2005-08-23 American Axle & Manufacturing, Inc. Method of forming a trailer receiver tube using hollow forward extrusion
WO2007125654A1 (fr) * 2006-04-26 2007-11-08 Ntn Corporation Dispositif de palier pour roue motrice et son procedé de fabrication
WO2008017358A1 (fr) * 2006-08-07 2008-02-14 Felss Gmbh Dispositif et procédé de formage d'une pièce
JP2008114256A (ja) * 2006-11-06 2008-05-22 Yamaha Marine Co Ltd シャフトスプライン塑性加工方法
DE102007022656A1 (de) * 2007-05-15 2008-11-20 Daimler Ag Kaltumformverfahren zum Anbringen eines Verbindungselements an einem Ende einer Hochdruckleitung
DE102007040130B3 (de) * 2007-08-24 2008-11-27 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Umformen eines Werkstückes
JP2010047042A (ja) * 2008-08-19 2010-03-04 Ntn Corp 駆動車輪用軸受装置
JP5399058B2 (ja) * 2008-12-12 2014-01-29 Ｎｔｎ株式会社 等速ジョイントの外輪又は等速ジョイントに連結される動力伝達用シャフトのスプライン軸の製造方法
CN102380517B (zh) * 2011-10-19 2014-03-26 浙江工业大学 基于电液伺服驱动的多功能振动挤压模具
CN102581054B (zh) * 2012-02-29 2014-03-26 浙江工业大学 带顶出杆的高频颤振冷挤压模具
HUE036205T2 (hu) 2015-12-15 2018-06-28 Felss Systems Gmbh Eljárás és berendezés munkadarab folyatósajtolással alakítására
EP3360622B1 (fr) 2017-02-13 2020-11-04 FELSS Systems GmbH Procédé de fabrication et machine de formage pour la formation des pièces en particulier métalliques par extrusion
DE102018100413B3 (de) * 2018-01-10 2019-07-11 Federal-Mogul Valvetrain Gmbh Verfahren und Vorrichtung zum Herstellen von hohlen, innengekühlten Ventilen
CN111804918B (zh) * 2020-07-21 2022-04-12 西华大学 一种粉末冶金零件及其制备方法
CN113020600B (zh) * 2021-03-09 2023-01-10 吉凯恩(丹阳)工业有限公司 一种粉末冶金齿轮滚压致密化装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1364019A (fr) * 1963-05-04 1964-06-19 Procédé physique améliorant le formage à chaud ou à froid des métaux ou des alliages
AT271143B (de) * 1967-10-09 1969-05-27 Langestein & Schemann Ag Maschine zur Unformung eines Werkstückes zwischen zwei Bären
US3550417A (en) 1968-03-14 1970-12-29 Univ Ohio Process for the cold forming of metal
US3585832A (en) * 1968-06-14 1971-06-22 Battelle Development Corp Metal working
US3572080A (en) * 1968-10-03 1971-03-23 George A Mitchell Co Production of pointed workpieces
DE1929558A1 (de) * 1969-06-11 1970-12-17 Ibm Deutschland Verfahren zum Kaltfliesspressen
US3818799A (en) * 1972-10-30 1974-06-25 Chambersburg Eng Co Control system for an impact device
US4197757A (en) * 1977-04-13 1980-04-15 Hackett Kenneth P Method and apparatus for the cold forming of metal
US4131164A (en) * 1977-11-23 1978-12-26 Chambersburg Engineering Company Adaptive valve control system for an impact device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9908813A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006024505A1 (fr) * 2004-09-02 2006-03-09 Felss Gmbh Dispositif et procede de correction d'une erreur d'obliquite d'un profil polygonal, notamment d'une erreur de direction de dent d'une denture
US8240179B2 (en) 2004-09-02 2012-08-14 Felss Gmbh Method and device for correcting a bevel error of a polygonal profile, in particular a flank alignment error of a toothing
DE102009019249A1 (de) 2009-04-30 2010-11-18 Felss Gmbh Verfahren zur Herstellung eines Profils in einer Wand eines Werkstücks

Also Published As

Publication number Publication date
WO1999008813A1 (fr) 1999-02-25
EP1003616B1 (fr) 2002-07-10
ES2179530T3 (es) 2003-01-16
DE59804736D1 (de) 2002-08-14
DE19735486A1 (de) 1999-03-18
KR100406080B1 (ko) 2003-11-17
JP2001514969A (ja) 2001-09-18
CA2301037A1 (fr) 1999-02-25
ATE220356T1 (de) 2002-07-15
CA2301037C (fr) 2008-10-21
KR20010022478A (ko) 2001-03-15
DE19735486C2 (de) 2000-07-20
JP3572544B2 (ja) 2004-10-06
US6212929B1 (en) 2001-04-10

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