EP2095890A2 - Procédé de déformation d'un composant de profilé creux à l'aide d'une haute pression interne - Google Patents

Procédé de déformation d'un composant de profilé creux à l'aide d'une haute pression interne Download PDF

Info

Publication number: EP2095890A2
Authority: EP; European Patent Office
Prior art keywords: hollow profile; reinforcing member; profile component; component; closure element
Prior art date: 2008-03-01
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

EP09002084A

Other languages

German (de)

English (en)

Other versions

EP2095890B1 (fr

EP2095890A3 (fr

Inventor

Alexander Hoffmann

Jürgen Sander

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.)

Audi AG

Original Assignee

Audi 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.)

2008-03-01

Filing date

2009-02-14

Publication date

2009-09-02

2009-02-14 Application filed by Audi AG filed Critical Audi AG

2009-09-02 Publication of EP2095890A2 publication Critical patent/EP2095890A2/fr

2012-01-18 Publication of EP2095890A3 publication Critical patent/EP2095890A3/fr

2013-04-17 Application granted granted Critical

2013-04-17 Publication of EP2095890B1 publication Critical patent/EP2095890B1/fr

Status Not-in-force legal-status Critical Current

2029-02-14 Anticipated expiration legal-status Critical

Links

Images

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
- B21D26/02—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
- B21D26/051—Deforming double-walled bodies
- 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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods

Definitions

the invention relates to a method for forming a hollow profile component by means of internal high pressure according to the closer defined in the preamble of claim 1.
the inventive method it is thus possible to provide complex hollow profile components with local, internal reinforcements.
the application of pressure to the reinforcing member may take place in an advantageous development of the invention in that the open end of the reinforcing member is sealed with a sealing die, and that in the open end of the reinforcing member, a pressure medium is introduced.
the narrowed end of the reinforcing member is tapered and formed at least approximately adapted to a recess in the closure element.
the narrowing of the end of the reinforcing member is performed so that the narrowed end is closed. In this way, a tightness of the reinforcing member is achieved regardless of the design of the closure element.
Fig. 1 shows a hollow profile component 1, which may be formed for example as a frame member of a motor vehicle.
the hollow profile component 1 may be a lateral roof frame of the motor vehicle.
the hollow profile component 1 is preferably made of an aluminum material, but other materials may be suitable for the same.
the hollow profile component 1 should consist of a formable material which has been produced, for example, by extrusion, roll forming, tube drawing or the like.
the hollow profile component 1 has an outer flange portion 1a, which, however, plays no role in the method described below.
the hollow profile component 1 can have approximately any desired external shape.
the hollow profile component 1 is intended by means of a in Fig. 2 shown reinforcing member 2 locally, ie over a portion of its length, be reinforced.
the length of the reinforcing member 2 depends on the length of the area over which the hollow profile component 1 is to be reinforced. To obtain sufficient reinforcement, it is preferable if the material of the reinforcing member 2 has higher strength than the material of the hollow profile member 1, but the two members 1 and 2 may be made of the same material.
the method described below for connecting the two components 1 and 2 is also interesting if they consist of materials that are not weldable in their combination.
Fig. 3 the reinforcing member 2 is shown in a machined state, in FIG which one end 3 of the reinforcing member 2 is narrowed.
This narrowing of the end 3 of the reinforcing member 2 is carried out in the present case so that the narrowed end 3 is completely closed.
the narrowed end 3 facing away, open end 4 of the reinforcing member 2 is not processed.
a processing method for narrowing the reinforcing member 2 for example, rotary swaging can be used, but it is also possible to close the reinforcing member 2 by a soldering, gluing or welding process.
a closure element 5 is applied and the reinforcing member 2 is inserted with the closure element 5 applied thereto in the hollow profile component 1.
the narrowed end 3 is at least approximately adapted to a recess 6 in the closure element 5.
the closure element 5 may for example consist of metal, but it is also conceivable that the same consists of plastic.
the closure element 5 may optionally have a slightly larger diameter than the inner diameter of the hollow profile component 1, so that the reinforcing member 2 and the closure member 5 must be inserted with a certain force in the hollow profile component 1 and a certain material removal on the closure element 5 can take place ,
the outer diameter of the reinforcing member 2 should be slightly smaller than the inner diameter of the hollow profile component 1.
FIG Fig. 5 A further method step, with which the hollow profile component 1 is shaped together with the reinforcing component 2 by means of internal high pressure, is in FIG Fig. 5 shown.
the hollow profile component 1 is inserted with the reinforcing member 2 inserted in the same and the closure element 5 in a forming tool 7, which may be of known type.
a pressure medium is introduced.
the reinforcing member 2 By introducing the pressure medium in the reinforcing member 1, which can be done in a conventional manner, for example via the sealing ram 8, the reinforcing member 2 is set under a very high pressure, thereby deforming the same and, together with the closure member 5, with the hollow profile component 1 connects.
the forming tool 7 may be provided with further cavities or recesses through which a further deformation of the hollow profile component 1 takes place.
the pressure medium may be, for example, an oil-water emulsion.
the narrowed end 3 of the reinforcing member 2 is formed tapered and, as already mentioned above, adapted to the recess 6 in the closure element 5.
the angle at which the narrowed end 3 is narrowed and which has an influence on the introduction of force via the closure element 5, also depends on the material of the hollow profile component 1, the reinforcing member 2 and in particular of the closure element 5 as well as the clearance between the closure element 5 and the Hollow profile component 1 from.
the reinforcing member 2 can on the reinforcing member 2 also from its narrowed end 3 ago by means of another, not shown, sealing punch and by means of Introducing a pressure medium to apply pressure.
the non-reinforced region of the hollow profile component 1 subjected to a deformation and expanded into the shape of the forming tool 7.
the pressure build-up should lag behind the pressure build-up at the open end 4 and be adjusted such that the closure element 5 always ensures a tightness between the reinforcing component 2 and the hollow profile component 1.
a lower pressure than at the open end 4 is preferably selected at the narrowed end 3.
bending and / or embossing operations can be performed on the hollow profile component 1 and on the introduced into the hollow profile component 1 reinforcing member to change the outer shape of the hollow profile component 1 and / or order to secure the position of the reinforcing member 2 and the closure member 5 within the hollow profile component 1. If necessary, an undercut between the two components 1 and 2 can be generated.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Body Structure For Vehicles (AREA)
Shaping Metal By Deep-Drawing, Or The Like (AREA)

EP20090002084 2008-03-01 2009-02-14 Procédé de déformation d'un composant de profilé creux à l'aide d'une haute pression interne Not-in-force EP2095890B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE200810012008 DE102008012008B3 (de)	2008-03-01	2008-03-01	Verfahren zur Umformung eines Hohlprofilbauteils mittels Innenhochdruck

Publications (3)

Publication Number	Publication Date
EP2095890A2 true EP2095890A2 (fr)	2009-09-02
EP2095890A3 EP2095890A3 (fr)	2012-01-18
EP2095890B1 EP2095890B1 (fr)	2013-04-17

Family

ID=40834392

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP20090002084 Not-in-force EP2095890B1 (fr)	2008-03-01	2009-02-14	Procédé de déformation d'un composant de profilé creux à l'aide d'une haute pression interne

Country Status (2)

Country	Link
EP (1)	EP2095890B1 (fr)
DE (1)	DE102008012008B3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN104785604A (zh) *	2015-04-14	2015-07-22	桂林电子科技大学	金属薄壁双层管冲击液压胀形方法及装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102005028188A1 (de)	2004-06-17	2006-02-02	Usui Kokusai Sangyo Kaisha Ltd., Nagasawa	Verbindungsstruktur eines divergierenden Abzweigrohres in einer Kraftstoffdruckleitung für eine Brennkraftmaschine, divergierendes Abzweigrohr und Verfahren zur Herstellung des divergierenden Abzweigrohres

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5838618A (ja) *	1981-09-01	1983-03-07	Kawasaki Heavy Ind Ltd	内管端部を補強した二重管の製造方法
DE19511970C2 (de) *	1995-04-18	1998-07-09	Werdau Fahrzeugwerk	Verfahren zum Herstellen von verformten mehrwandigen Rohren mit Hohlräumen zwischen den Wandungen
DE10013428C1 (de) *	2000-03-17	2001-01-18	Daimler Chrysler Ag	Verfahren zur Herstellung von doppelwandigen Hohlprofilen mittels Innenhochdruckumformen
CN100368109C (zh) *	2001-05-22	2008-02-13	三菱自动车工业株式会社	液压成形产品
US7181846B2 (en) *	2004-07-08	2007-02-27	Torque-Traction Technologies, Inc.	Method of manufacturing a combined driveshaft tube and yoke assembly

2008
- 2008-03-01 DE DE200810012008 patent/DE102008012008B3/de not_active Expired - Fee Related
2009
- 2009-02-14 EP EP20090002084 patent/EP2095890B1/fr not_active Not-in-force

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102005028188A1 (de)	2004-06-17	2006-02-02	Usui Kokusai Sangyo Kaisha Ltd., Nagasawa	Verbindungsstruktur eines divergierenden Abzweigrohres in einer Kraftstoffdruckleitung für eine Brennkraftmaschine, divergierendes Abzweigrohr und Verfahren zur Herstellung des divergierenden Abzweigrohres

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN104785604A (zh) *	2015-04-14	2015-07-22	桂林电子科技大学	金属薄壁双层管冲击液压胀形方法及装置
CN104785604B (zh) *	2015-04-14	2016-10-19	桂林电子科技大学	金属薄壁双层管冲击液压胀形方法及装置

Also Published As

Publication number	Publication date
EP2095890B1 (fr)	2013-04-17
EP2095890A3 (fr)	2012-01-18
DE102008012008B3 (de)	2009-09-03

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