EP1321202A2 - Procédé de fabrication et dispositif de formage à haute pression interne pour la mise en oeuvre du procédé de fabrication - Google Patents

Procédé de fabrication et dispositif de formage à haute pression interne pour la mise en oeuvre du procédé de fabrication Download PDF

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Publication number
EP1321202A2
EP1321202A2 EP02024794A EP02024794A EP1321202A2 EP 1321202 A2 EP1321202 A2 EP 1321202A2 EP 02024794 A EP02024794 A EP 02024794A EP 02024794 A EP02024794 A EP 02024794A EP 1321202 A2 EP1321202 A2 EP 1321202A2
Authority
EP
European Patent Office
Prior art keywords
tool
punching
section
internal high
pressure forming
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
EP02024794A
Other languages
German (de)
English (en)
Other versions
EP1321202B1 (fr
EP1321202A3 (fr
Inventor
Walter-Josef Schiffler
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 EP1321202A2 publication Critical patent/EP1321202A2/fr
Publication of EP1321202A3 publication Critical patent/EP1321202A3/fr
Application granted granted Critical
Publication of EP1321202B1 publication Critical patent/EP1321202B1/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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/28—Perforating, i.e. punching holes in tubes or other hollow bodies

Definitions

  • the present invention relates to a manufacturing method according to the preamble of claim 1 and an internal high pressure forming tool according to the Preamble of claim 6.
  • an internal high pressure forming tool in which "Additional tools” such as Stamping plants are integrated.
  • stamping plants are in a mold half of the hydroforming tool several axially movable punching tools integrated.
  • the punching tools holes can be punched either “inwards” or “outwards” as well optionally with or without punching slugs remaining on the component.
  • punching with the punching tool remaining on the component "is the punching tool at one point of the Die-cut edge made blunt. In this area of the punching tool, the The slugs to be punched out are bent inwards and remain on the piece to be produced Component.
  • the object of the invention is to specify a production method or a tool, which enables a greater "vertical range of manufacture”.
  • the basic principle of the invention is through in a wall Internal high pressure forming manufactured component to a through opening punch and then create an internal thread in the through hole in such a way that "internal high pressure forming component" when punching the Through opening and in the production of the internal thread in the Internal high pressure forming tool remains.
  • "internal high pressure forming component” when punching the Through opening and in the production of the internal thread in the Internal high pressure forming tool remains.
  • hydroforming tool a "punching tool” and a “threading tool” integrated.
  • the hydroforming tool integrated a tool that a punching section for punching the Through opening and a further tool section for producing the Has internal thread. That is, with one and the same tool punched and a thread can be produced.
  • the stamping section is preferably executed in two parts. It then has a cone-like shape from the free end of the Punching tool protruding pre-cut section and one itself subsequent "through section".
  • the pre-punching section is preferably bevelled on one side on its end face. Viewed in a side view, the pre-punching section is therefore asymmetrical.
  • the Beveling on the pre-punching section causes the punching slug to be punched out is not punched out of the component, but is folded "inwards". The punching slug thus remains on the component to be manufactured.
  • the one at the Pre-punching section adjoining through section essentially has the Diameter of the through opening to be produced.
  • the stamping tool becomes essentially purely translational postponed, i.e. through the wall of the hydroforming component pressed.
  • the punching tool can be, for example, a hydraulic cylinder be charged. If the through hole is punched, it will "Punching tool" for producing the internal thread is additionally moved in a rotary manner.
  • the Internal threads can be rolled or cut, for example.
  • a form thread is precisely positioned in the hydroforming component become.
  • the strength of the thread to be made depends on the material of the Internal high pressure forming component.
  • a thread produced in this way is at least Suitable for screw connections with light to medium loads.
  • a variety of applications are conceivable in the automotive sector, e.g. the attachment of Attachments to frame or support parts, which are formed by internal high pressure forming were manufactured.
  • Figure 1 shows a schematic representation of an internal high pressure forming tool an upper tool half 1 and a lower tool half 2. Between the two tool halves 1, 2 is in a known manner Hydroforming manufactured "hydroforming component" 3, the e.g. can be made from a "pipe blank".
  • a cylindrical recess 4 is provided in the lower tool part 2, in which a "post-processing tool” 5 is arranged.
  • the "post-processing tool” 5 can be functionally divided into three sections, namely one cone section 6 protruding from the free end, one Pass-through section 7 and a tool section 8 for producing an internal thread.
  • the pre-punching section 6 is asymmetrical in the sectional view shown, i.e. he has a lateral bevel 9 on its end face. Its diameter is smaller than that of the through section 7.
  • the post-processing tool 5 has also in the circumferential area between the pre-punching section 6 and the Pass-through section 7 has a circumferential chamfer 10. From the through section 7 The diameter of the post-processing tool 5 "widens" conically the diameter of the tool section 8, which is used to produce the Internal thread is provided.
  • FIGS. 1 to 7 The individual work steps shown in FIGS. 1 to 7 are described below after the production of the hydroforming component explained.
  • figure 1 is the free end of the prepunching section 6 on the outside of the Inner high pressure forming component 3.
  • the post-processing tool 5 is “delivered”. That is, the pre-punching section 6 punches it Internal high pressure forming component 3. In the area of bevel 9 that will Internal high pressure forming component 3 not punched through. Rather, one arises So-called punching slug 11, which in a further feed movement of the Post-processing tool 5 is bent inwards, which in Figure 3 is shown. By a further feed movement of the post-processing tool 5 is the through opening to be produced in the Internal high-pressure forming component 3 punched through the through section 7, which is shown in Figure 4. The side edges of the Internal high pressure forming component 3 around the through section 7 "clean" bent essentially vertically.
  • the thread After the threading through, the thread is produced, which is shown in FIG. 5 is.
  • the feed movement of the post-processing tool 5 is now a rotational movement is superimposed, as a result of which in the hydroforming component 3, more precisely in its edge regions 12, 13, an internal thread 14 is produced becomes.
  • the thread can be cut or rolled, for example.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
EP02024794A 2001-12-19 2002-11-07 Procédé de fabrication et dispositif de formage à haute pression interne pour la mise en oeuvre du procédé de fabrication Expired - Lifetime EP1321202B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10162394 2001-12-19
DE10162394A DE10162394A1 (de) 2001-12-19 2001-12-19 Fertigungsverfahren und Innenhochdruckumformwerkzeug zur Durchführung des Fertigungsverfahrens

Publications (3)

Publication Number Publication Date
EP1321202A2 true EP1321202A2 (fr) 2003-06-25
EP1321202A3 EP1321202A3 (fr) 2004-04-21
EP1321202B1 EP1321202B1 (fr) 2005-02-16

Family

ID=7709804

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02024794A Expired - Lifetime EP1321202B1 (fr) 2001-12-19 2002-11-07 Procédé de fabrication et dispositif de formage à haute pression interne pour la mise en oeuvre du procédé de fabrication

Country Status (2)

Country Link
EP (1) EP1321202B1 (fr)
DE (2) DE10162394A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017118505B4 (de) 2017-08-14 2019-09-12 PHOENIX FEINBAU GmbH & Co. KG Verfahren zur Herstellung eines Aktivelements und entsprechendes Aktivelement

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1025471B1 (de) 2017-08-14 2019-03-18 PHOENIX FEINBAU GmbH & Co. KG Verfahren zur Herstellung eines Aktivelements und entsprechendes Aktivelement

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6134767A (en) * 1997-04-10 2000-10-24 Meleghy Hydroforming Gmbh & Co. Kg Method for embedding connection elements in a wall
DE19719426B4 (de) * 1997-05-12 2005-06-16 Dr. Meleghy Hydroforming Gmbh & Co. Kg Verfahren und Vorrichtung zum Herstellen eines Hohlkörpers
DE19733477C2 (de) * 1997-08-02 1999-12-02 Daimler Chrysler Ag Verfahren zum Herstellen eines mit einem Fügeteil verbundenen von einer Ausgangsform mittels Innenhochdruck in eine Endform umgeformten Hohlprofiles sowie Vorrichtung zur Durchführung des Verfahrens
DE19733476C2 (de) * 1997-08-02 1999-08-19 Daimler Chrysler Ag Verfahren zur Herstellung einer montagegerechten Anbringungsstelle an einem Hohlprofil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017118505B4 (de) 2017-08-14 2019-09-12 PHOENIX FEINBAU GmbH & Co. KG Verfahren zur Herstellung eines Aktivelements und entsprechendes Aktivelement

Also Published As

Publication number Publication date
EP1321202B1 (fr) 2005-02-16
DE10162394A1 (de) 2003-07-03
EP1321202A3 (fr) 2004-04-21
DE50202272D1 (de) 2005-03-24

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