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EP0396848A2 - Dispositif de formage magnétique divisible - Google Patents

Dispositif de formage magnétique divisible Download PDF

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Publication number
EP0396848A2
EP0396848A2 EP89890290A EP89890290A EP0396848A2 EP 0396848 A2 EP0396848 A2 EP 0396848A2 EP 89890290 A EP89890290 A EP 89890290A EP 89890290 A EP89890290 A EP 89890290A EP 0396848 A2 EP0396848 A2 EP 0396848A2
Authority
EP
European Patent Office
Prior art keywords
magnetic field
field concentrator
longitudinal axis
concentrator
magnetic
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
EP89890290A
Other languages
German (de)
English (en)
Other versions
EP0396848A3 (fr
Inventor
Ewald Binder
Adolf Braun
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.)
Austria Metall AG
Original Assignee
Austria Metall 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 Austria Metall AG filed Critical Austria Metall AG
Publication of EP0396848A2 publication Critical patent/EP0396848A2/fr
Publication of EP0396848A3 publication Critical patent/EP0396848A3/fr
Ceased 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
    • 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
    • B21D26/14—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces applying magnetic forces

Definitions

  • the invention relates to a divisible magnetic field concentrator for an inductor for magnetic forming with recesses in the surfaces intended for electrical contact.
  • Magnetic forming makes it possible to connect hollow bodies and profiles together. This usually happens in that two hollow parts are inserted into one another and these parts are deformed by the strong action of magnetic forces.
  • the areas of the parts to be connected are usually plugged into one another and inserted into a recess concentrically located in the magnetic field concentrator. Then the magnetic forces are activated by the induction coils and the deformation takes place in the area of the overlap that is in the recess.
  • this is remedied in that either the surface around the respective recess or the longitudinal axis of the recess lies in a plane which forms an angle with the longitudinal axis of the magnetic field concentrator.
  • This arrangement of the recesses ensures that an uneven deformation of the circumference over the cross sections to be connected occurs due to current flow or through mangetic induction in the parts to be connected. This creates an additional positive connection between the nested parts to be connected. This also provides additional security against twisting.
  • a particularly favorable embodiment can take place in that at least one of these recesses is arranged outside the longitudinal axis.
  • Another advantage of this invention is that closed frames or the like can also be produced by dividing and disassembling the magnetic field concentrator. Due to the fact that it can be dismantled, the parts do not have to be pushed into the magnetic field concentrator or pulled out of it after the joining process, but the magnetic field concentrator is attached to the parts.
  • magnétique field concentrator has at least two recesses.
  • a particularly favorable method for using such a magnetic field concentrate can consist in that the parts to be connected by magnetic deformation are plugged together, placed in a part of the magnetic field concentrator, this is assembled and positioned in the field coil via magnetic field concentrator, and the field coil is then energized.
  • This method is particularly beneficial for closed frames with different connection nodes.
  • This method can also be carried out according to the invention in such a way that a plurality of hollow profiles are placed on a mounting plate, the magnetic field concentrators are attached to the parts to be connected, and the individual connections are then made.
  • This process is particularly suitable for series and series production.
  • FIG. 5 shows a closed frame, for example. This consists of the hollow profiles 110, 111 and 112 and these are connected to one another by the nodes 114, 115 and 116. Magnetic field concentrators 101 and 102 are attached to the individual points to be connected. Coils 120 are attached to each of these concentrators.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetic Treatment Devices (AREA)
  • Coils Or Transformers For Communication (AREA)
EP19890890290 1989-05-09 1989-11-02 Dispositif de formage magnétique divisible Ceased EP0396848A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1099/89 1989-05-09
AT109989A AT392748B (de) 1989-05-09 1989-05-09 Teilbarer magnetfeldkonzentrator

Publications (2)

Publication Number Publication Date
EP0396848A2 true EP0396848A2 (fr) 1990-11-14
EP0396848A3 EP0396848A3 (fr) 1991-04-24

Family

ID=3506570

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890890290 Ceased EP0396848A3 (fr) 1989-05-09 1989-11-02 Dispositif de formage magnétique divisible

Country Status (2)

Country Link
EP (1) EP0396848A3 (fr)
AT (1) AT392748B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19822731A1 (de) * 1998-05-20 1999-11-25 Bayerische Motoren Werke Ag Verfahren zur Herstellung eines Rahmens für ein Fahrzeug
DE10050012A1 (de) * 2000-10-06 2002-05-02 Schuler Pressen Gmbh & Co Verfahren und Vorrichtung zum Schneiden von Blechen
GB2431370A (en) * 2005-10-18 2007-04-25 Ford Global Tech Llc An apparatus for electromagnetically forming a workpiece

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1452873B1 (de) * 1964-09-19 1971-02-25 Siemens Ag Feldkonzentrator einer Vorrichtung zum Umformen metallischer Werkstücke mittels impulsf¦rmiger Magnetfelder
DE1452874B2 (de) * 1964-09-19 1971-06-03 Siemens AG, 1000 Berlin u 8000 München Vorrichtung zum tiefziehen flacher metallischer werkstuecke durch magnetfelder
US3345844A (en) * 1965-02-02 1967-10-10 Gen Dynamics Corp Coil for magnetic forming
DE1577111A1 (de) * 1966-02-10 1970-02-19 Siemens Ag Verfahren zur Herstellung einer gleitenden Verbindung zwischen gegeneinander verschiebbaren Teilen
US3429159A (en) * 1967-06-27 1969-02-25 Gulf General Atomic Inc Forming apparatus
US3581541A (en) * 1969-04-01 1971-06-01 Gulf Energy & Environ Systems Method and apparatus for magnetic forming
BE790566A (fr) * 1971-11-05 1973-02-15 Alusuisse Matrice pour le formage d'une empreinte sur une piece metallique tubulaire par deformation magnetique
US3832509A (en) * 1973-05-29 1974-08-27 V Mikhailov Split-type magnetic field concentrator
FR2450145A1 (fr) * 1979-03-02 1980-09-26 Angenieux Clb Sa Procede d'assemblage des elements composant les cadres de bicyclettes et vehicules similaires, ainsi que les organes et les moyens correspondants de mise en oeuvre

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19822731A1 (de) * 1998-05-20 1999-11-25 Bayerische Motoren Werke Ag Verfahren zur Herstellung eines Rahmens für ein Fahrzeug
DE10050012A1 (de) * 2000-10-06 2002-05-02 Schuler Pressen Gmbh & Co Verfahren und Vorrichtung zum Schneiden von Blechen
DE10050012C2 (de) * 2000-10-06 2002-09-26 Schuler Pressen Gmbh & Co Verfahren und Vorrichtung zum Schneiden von Blechen
GB2431370A (en) * 2005-10-18 2007-04-25 Ford Global Tech Llc An apparatus for electromagnetically forming a workpiece
US7467532B2 (en) 2005-10-18 2008-12-23 Ford Global Technologies, Llc Apparatus for electromagnetically forming a workpiece
GB2431370B (en) * 2005-10-18 2010-11-17 Ford Global Tech Llc An apparatus for electromagnetically forming a workpiece

Also Published As

Publication number Publication date
EP0396848A3 (fr) 1991-04-24
ATA109989A (de) 1990-11-15
AT392748B (de) 1991-05-27

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