EP1321203B1 - Presse de formage - Google Patents

Presse de formage Download PDF

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Publication number
EP1321203B1
EP1321203B1 EP02027171A EP02027171A EP1321203B1 EP 1321203 B1 EP1321203 B1 EP 1321203B1 EP 02027171 A EP02027171 A EP 02027171A EP 02027171 A EP02027171 A EP 02027171A EP 1321203 B1 EP1321203 B1 EP 1321203B1
Authority
EP
European Patent Office
Prior art keywords
forming
cavity
blank
tool
recess
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.)
Expired - Lifetime
Application number
EP02027171A
Other languages
German (de)
English (en)
Other versions
EP1321203A3 (fr
EP1321203A2 (fr
Inventor
Rudolf Denk
Peter Katzlinger
Walter-Josef Schiffler
Helmut Reuter
Lars Huras
Herbert Professor Dr.-Ing. Bauer
Andreas Dr. Haas
Helmut Bögel
Christoph Dr. Hartl
Georg P Holzinger
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP1321203A2 publication Critical patent/EP1321203A2/fr
Publication of EP1321203A3 publication Critical patent/EP1321203A3/fr
Application granted granted Critical
Publication of EP1321203B1 publication Critical patent/EP1321203B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B21D22/025—Stamping using rigid devices or tools for tubular 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
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/29—Making branched pieces, e.g. T-pieces
    • B21C37/294—Forming collars by compressing a fluid or a yieldable or resilient mass in the tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/037—Forming branched tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/047—Mould construction

Definitions

  • the invention relates to a forming press according to the preamble of claim 1.
  • Such a forming press is from the EP 1 063 029 A1 known.
  • a similar forming press is from the JP-A-2001340922 known.
  • the invention has for its object to provide a forming press of the embodiment described above, with a molding on a tubular workpiece in perfect way without unwanted stretching of the workpiece wall can be produced.
  • a targeted material transport is achieved when, on the one hand, in particular, the mold cavity opens with the counter-holder orthogonal to the blank in the mold space and on the other hand according to the invention, the tool base or tool shell on the opposite side of the mold cavity has a slide guide with an advanceable in the mold space slide, the During the production of the molding, blank material presses in the direction of the molding. Conveniently, the slider is movable beyond the cavity center in the mold space and against the internal high pressure applied blank.
  • the invention preferably provides that the slide after the Generating the molding in innenrochikibeaufschtem blank or resulting workpiece moves back to its original position, so that is reflected on the workpiece formed thereby tool shape.
  • a forming press not according to the invention provides that the counter-holder has a central forming punch, which can be moved counter to the direction of movement of the counter-holder into the resulting formation in order to produce two necklaces spaced apart from each other, and the middle part of the shaping under internal high-pressure in the direction of the center axis the resulting tool piece pushed back.
  • Between the two adjacent Aushalsungen can be, for example, a handlebar for an axle support as he finds use in vehicle use. In general, for the attachment of such handlebars on Achsbaubeil during hot forming a necking is generated, is articulated in the after a corresponding elimination of Aushalsungs former.
  • the problem may arise that the stiffness and strength properties no longer meet the requirements by the material removal on the necking of the axle. This is prevented because now two adjacent Aushalsungen be generated in which the handlebar can be attached without removing material. Incidentally, the two Aushalsungen can easily compress and punch by means of a punch for the articulation of the handlebar.
  • a forming tool with a mold space 1 between the upper tool part 2 and lower tool part 3 for the manufacture of workpieces 4 of metallic materials, in particular aluminum or aluminum alloys, in the way of an active media Hot forming shown.
  • This forming tool has in the mold cavity 1 retractable forming die 5 with high pressure holes 6, which work on a located in the mold cavity 1 hollow blank 7, according to the embodiment, a pipe, according to the hydroforming.
  • standing under high pressure forming Umform endlesskeit is pressed into the blank 7, which may be even high temperature. But it is also possible to preheat the blank 7 or the forming tool to make a hot forming under high pressure can.
  • the tool upper part 2 has a molding recess 9 corresponding to the molding 8 with a counter-holder 10 guided in the molding recess 9 in the molding direction, which controls the molding speed and molding depth of the resulting molding 8.
  • the mold recess 9 with the counter-holder 10 opens orthogonally to the blank 7 in the mold space. 1
  • the tool lower part 3 has on the side opposite the mold recess 9 a slide guide 11 with a slide 12 which can be moved into the mold space 1 and presses blank material in the direction of the molding 8 during the production of the molding 8 ,
  • the slider 12 is movable beyond the cavity center into the mold space 1 and against the internal high-pressure blank 7. After the shaping 8 has been produced, the slide 12 travels in the case of a high-pressure-charged blank 7 or largely arisen workpiece back to its original position, so that in this area on the workpiece 4, the tool formed thereby forms.
  • - Retainer and slider movements are indicated by arrows.
  • the counter-holder 10 has a central forming die 13, which is movable against the direction of movement of the counter-holder 10 in the resulting formation 8 for generating two with a predetermined distance adjacent necklaces 14, 14 and pushed back the middle part of standing under internal high pressure molding 8 in the direction of the center axis of the resulting workpiece.
  • the two extrusions 14, 14 ' serve e.g. for mounting a link 15 on a in Fig. 6 fragmentary illustrated axle support 16.
  • the handlebar attachment between the necklaces 14, 14 ' is possible without elimination of Aushalsungsmaterial, so that the entire axle 16 is characterized by high rigidity and strength properties.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Forging (AREA)

Claims (4)

  1. Presse de formage comprenant un outil de formage et un logement de formage entre une partie inférieure et une partie supérieure d'outil pour la réalisation de pièces en métal, en particulier en aluminium, par un formage à chaud soutenu par du milieu actif, et des poinçons de formage venant en saillie dans le logement, qui travaille sur une ébauche creuse se trouvant dans le moule comme par exemple un tube selon le principe du formage à haute pression intérieure, du fluide de formage sous haute pression de formage soutenant le formage, et pour réaliser une déformation (8) dans la pièce tubulaire, la partie supérieure (2) et/ou la partie inférieure (3) de l'outil ont une cavité de formage (9) avec un contre-appui (10) guidé dans cette cavité (9) dans la direction de la déformation,
    caractérisée en ce que
    le contre-appui contrôle la vitesse et la profondeur de formage de la déformation (8) à réaliser,
    les poinçons de formage comportent des perçages de haute pression et la partie inférieure (3) ou la partie supérieure (2) de l'outil ont, sur le côté opposé à celui de la cavité de formage (9), un guide de coulisseau (11) avec un coulisseau (12) avançant dans le logement de formage (1), ce coulisseau poussant la matière de l'ébauche en direction de la déformation pendant que se réalise la déformation (8).
  2. Presse de formage selon la revendication 1,
    caractérisée en ce que
    la cavité de formage (9) et le contre-appui (10) débouchent perpendiculairement à l'ébauche (7) dans le logement de formage (1).
  3. Presse de formage selon l'une des revendications 1 et 2,
    caractérisée en ce que
    le poussoir (12) peut être déplacé au delà du milieu du logement de moulage dans le logement (1) contre l'ébauche (7) soumise à la haute pression intérieure.
  4. Presse de formage selon l'une des revendications 1 à 3,
    caractérisée en ce qu'
    après avoir réalisé la déformation (8), le coulisseau (12) revient dans sa position de départ, l'ébauche (7) étant soumise à la haute pression intérieure.
EP02027171A 2001-12-19 2002-12-05 Presse de formage Expired - Lifetime EP1321203B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10162440 2001-12-19
DE2001162440 DE10162440A1 (de) 2001-12-19 2001-12-19 Umformpresse

Publications (3)

Publication Number Publication Date
EP1321203A2 EP1321203A2 (fr) 2003-06-25
EP1321203A3 EP1321203A3 (fr) 2005-03-09
EP1321203B1 true EP1321203B1 (fr) 2007-08-01

Family

ID=7709839

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02027171A Expired - Lifetime EP1321203B1 (fr) 2001-12-19 2002-12-05 Presse de formage

Country Status (2)

Country Link
EP (1) EP1321203B1 (fr)
DE (2) DE10162440A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005030994B3 (de) * 2005-07-02 2006-05-04 Daimlerchrysler Ag Verfahren und Vorrichtung zur Herstellung eines umfänglich geschlossenen Hohlprofils
CN103920789B (zh) * 2014-05-06 2015-08-05 哈尔滨工业大学 一种弯头三通管内高压成形模具及方法
DE102016212314B4 (de) * 2016-07-06 2022-05-12 Arianegroup Gmbh Verfahren zur Herstellung einer Brennkammer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1063029A1 (fr) * 1999-06-24 2000-12-27 Benteler Ag Procédé et dispositif d'hydroformage d'une pièce creuse
JP2001340922A (ja) * 2000-05-31 2001-12-11 Kawasaki Steel Corp Ｔ継手部品の製造方法およびハイドロフォーム用金型

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH295158A (de) * 1950-09-18 1953-12-15 Ici Ltd Verfahren und Vorrichtung zur Herstellung von Rohrfittingen.
US3350905A (en) * 1963-12-21 1967-11-07 Agency Ind Science Techn Liquid pressure bulge forming apparatus
FR2535987B1 (fr) * 1982-11-16 1988-06-03 Vallourec Procede de formage d'un ou plusieurs bulbes, par deformation plastique en expansion de la paroi d'un troncon de tube
DE9407812U1 (de) * 1994-05-11 1994-07-21 Zeuna-Stärker GmbH & Co KG, 86154 Augsburg Rohrzusammenführung und Vorrichtung zu ihrer Herstellung
DE19733474C2 (de) * 1997-08-02 1999-12-09 Daimler Chrysler Ag Verfahren und Vorrichtung zur Herstellung von Nebenformelementen an Hohlprofilen
DE19751402A1 (de) * 1997-11-14 1999-06-02 Mannesmann Ag Verfahren und Vorrichtung zur Herstellung eines Abzweiges an einem Hohlprofil
US6029487A (en) * 1998-08-24 2000-02-29 Avmat Kydroforming Ltd. System and method for manufacturing tubular products from tubular workpieces

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1063029A1 (fr) * 1999-06-24 2000-12-27 Benteler Ag Procédé et dispositif d'hydroformage d'une pièce creuse
JP2001340922A (ja) * 2000-05-31 2001-12-11 Kawasaki Steel Corp Ｔ継手部品の製造方法およびハイドロフォーム用金型

Also Published As

Publication number Publication date
EP1321203A3 (fr) 2005-03-09
DE50210587D1 (de) 2007-09-13
DE10162440A1 (de) 2003-07-03
EP1321203A2 (fr) 2003-06-25

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