EP1848554A1 - Verfahren und einrichtung zur herstellung von bauteilen - Google Patents
Verfahren und einrichtung zur herstellung von bauteilenInfo
- Publication number
- EP1848554A1 EP1848554A1 EP05794717A EP05794717A EP1848554A1 EP 1848554 A1 EP1848554 A1 EP 1848554A1 EP 05794717 A EP05794717 A EP 05794717A EP 05794717 A EP05794717 A EP 05794717A EP 1848554 A1 EP1848554 A1 EP 1848554A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- preform
- tool
- forming
- component
- support punch
- 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
Links
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/009—Gas treatment of work
-
- 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
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
Definitions
- the invention relates to a method for the production of components according to the preamble of the first claim, wherein a component is produced in several forming stages, wherein a forming stage is a hydroforming.
- a method for the production of metal profile components for motor vehicles is known in which the starting material or rolled section is heated, quenched and hardened by induction to a temperature required for hardening.
- curing of the component is undesirable.
- the hydroforming process for the production of profile components wherein a starting workpiece is inserted in the form of a hollow section in a forming tool and formed in this by the supply of a pressure medium.
- a component is partially expanded mechanically (also by means of hydraulic forming) and / or reduced, and then the entire component is annealed.
- DE 102 41 028 B3 describes a method for the production of curved (rounded) structural components from an extruded profile, which is led out of the die of the extruder for the purpose of molding as arcuate (rounded) profile of guide tools and in the hot state one or more Processing stations is supplied, wherein before the hot working, the processing temperature of the workpiece is adjusted by cooling.
- the hot forming can also be done as hydroforming.
- a disadvantage of the aforementioned solutions is that after completion of the hydroforming no further reshaping processing in the direction of the cavity of the workpiece more occurs and the forming capacity is limited in hydroforming.
- the method of manufacturing a component is by use of a voided starting workpiece having a wall with an inner surface and an outer surface, the starting workpiece being in an internal high pressure forming (IHU) tool by the action of a pressure of a pressure medium acting on the inner surface thereof a first forming operation is converted into a preform determined by the internal high-pressure forming (IHU) tool and then the preform in a forming process in a forming tool by a forming process acting on the outer surface in the direction of the cavity of the preform in the required shape of the component, which also has narrow radii, is reshaped.
- IHU internal high pressure forming
- the second forming operation may be either a hot forming operation or a cold forming operation.
- the second forming process preferably takes place in a tool by means of at least one tool element having a first mold surface and acting on the outer surface, the mold surface having the contour which is to be produced on the outer wall of the component.
- a support punch in the preform which has at least one second mold surface against which acts the first mold surface of the tool element, so that the lying between the two mold surfaces wall portion of the preform is formed by the second forming operation in the final shape.
- hot forming operation the entire preform or only partial areas where the second forming operation is to take place are heated to the hot working temperature. This can be done inside or outside the device e.g. by means of inductive heating or by radiant heat. To avoid scaling, hot forming can be carried out under a protective gas atmosphere.
- the device for producing a component from a cavity-provided starting workpiece which has a wall with an inner surface and an outer surface, consists of an internal high pressure forming (IHU) tool, in which by the action of a pressure of a pressure medium acting on the inner surface of the starting part the initial part in a first forming process into an internal high pressure forming (IHU)
- Tool specific preform is transformed, wherein in a subsequent station, a forming tool is used, in which the preform is inserted, wherein the forming tool has at least one toward the cavity movable and acting on the outer surface of the preform, first tool element corresponding to a first mold surface having to be generated contour of the component to be produced.
- the tool advantageously has a support punch, which engages through an opening of the preform in the cavity. At least one second mold surface is formed on the support punch, against which the first mold surface of the tool is movable, so that the wall of the preform is deformable between the two mold surfaces.
- the support punch axially into a first part (20 a) and a second
- Part (20b) be shared, wherein the first part and / or the second part each one may contain second mold surface.
- One or both parts of the support punch may be independently movable into / out of the preform. It is also possible, the support stamp or a part of the support stamp fixed to the frame on
- first part and / or the second part of the support punch may be movable perpendicular to the axis of the support punch in the direction of the tool element and away therefrom.
- a third part of the support punch may extend between the first part and the second part of the support punch.
- the tool can be heated and be in a protective gas atmosphere.
- the hot forming subsequent to the hydroforming it is possible to reshape the component in the areas (for example, to produce a bead) in which a strong solidification has been recorded by the preceding forming stages.
- ECM machining By a final electrochemical machining (ECM machining), it is possible to significantly improve the surface of the component. The roughness of the surface is reduced and any existing burr removed. This reduces the friction to the friction partner and increases the life of the component.
- FIG. 1 a starting workpiece 1 V
- FIG. 1 c section A-A according to FIG. Fig. 1 b
- Fig. 2 In the open tool 10 located preform 1V with therein support stamp 20 in cross-section
- Fig. 3 Tool 10 with component 1B after completion of the second
- FIG. 5 three-dimensional view of the opened tool after the second forming process with component 1 B located therein
- FIG. 6 three-dimensional view of component 1 B produced according to the invention
- Fig. 1a shows the cross section of a tubular starting workpiece 1A.
- This pipe section acc. Fig. 1b in a first region 1.1 its initial diameter. In the middle of 1.2 the diameter was reduced and the adjoining area 1.3 was widened at its open end by hydroforming. The area 1.3 forms a kind of pot, which is followed by the reduced area 1.2.
- Fig. 1b is shown in Fig. 1c.
- This preform 1V shown in FIGS. 1b and 1c is inserted into a tool 10 with the region 1.3, which has been preformed by hydroforming.
- the tool 10 has a lower mold half 10.1.
- a tool element 11 is arranged, which has a first mold surface 12 corresponding to the component shape to be produced with a wave-shaped portion 12.1. Furthermore, a support punch 20 is provided which is divided axially into a first punch half 20a and a second punch half 20b. The first punch half 20a lies in the direction of
- Tool element 11 and has a second mold surface 21 which is opposite to the first mold surface 12 of the tool element 11 and this is adapted.
- 2 shows the opened tool 10 with the preform 1V inserted in the area 1.3 and punch halves 20a, 20b of the supporting punch 20 located therein before the second forming operation.
- this acts with the first mold surface 12 on the outer side 5 of the preform 1 V and thus shapes this wall portion of the preform in the direction of the cavity 2, until it to the second mold surface 21 of the first Stamp half 20a has created.
- the wall of the preform 1V is thus reshaped between the two shaping surfaces in accordance with their design, the supporting punch 20 forms the "counter-tool.”
- the closed tool 10 after the forming process is shown in cross-section in Fig. 3 and in longitudinal section in Fig. 4.
- the inner surface 4 is located on the mold surface 21 of first punch half 20a and the outer surface 5 on the forming surface 12 of the tool element 11 at. It can be seen from Fig. 4 that in the "pot area” 1.3 an unrecognizable axially extending shaft portion also an undercut 31 was generated
- Fig. 5 shows the three-dimensional view of the open tool 10 after the second forming process with the therein Component 1 B, without tool element "11. In area 1.3 (pot area), the embossed axially extending shaft section 30 as well as the undercut 31 can be seen.
- the preform 1V is inserted into the tool 10 and rests with the end located on the 1.3 side of a transverse plate 10.2.
- the first half of the stamp (not visible here) is fixed to the frame.
- the preform 1 V is thus pushed over the first punch half to the stop on the transverse plate 10.2.
- the second punch half 20b in the preform 1V and the tool element 11 performs a lifting movement in the direction of the lower tool 10.1, whereby the wall of the preform 1V between the tool element 11 and punch 20 is transformed.
- the second punch half 20b moves out of the component 1B and the tool element 11 moves upwards.
- the manufactured component 1B can be removed from the frame-fixed first punch half 20a.
- the component 1B is in this case a Rastierhülse for securing adjustment positions of a shift linkage for motor vehicles. These 5 Rast istshülsen have a pot area 1.3, followed by a cylindrical reduced area 1.2 connects. In this example, an extended area 1.1 follows.
- an axially extending shaft portion 30 was generated. This shaft portion 30 forms a latching recess, in which a detent ball, not shown, a ball catch o can engage.
- the pot region 1.3 has an undercut 31 for determining the selection plane and a link 32 is cut out, via which the determination of the individual gears of the gearshift takes place.
- the backdrop 32 is opposite a recess 33rd
- the locking sleeve is first formed in one piece and was made from a pipe section.
- the one-piece and extremely simple production has the advantage that higher accuracies can be achieved than in the production of shaving sleeves, which are composed of several individual parts. Furthermore, a kontumahe production is possible, which can be supplemented if necessary by a final mechanical processing.
- the second forming operation is carried out by hot forming, it is possible to influence the structure in a targeted manner and thus to carry out a hardening to increase the strength.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Catalysts (AREA)
- Nonmetallic Welding Materials (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005007997A DE102005007997B3 (de) | 2005-02-19 | 2005-02-19 | Verfahren und Einrichtung zur Herstellung von Bauteilen |
| PCT/DE2005/001670 WO2006086935A1 (de) | 2005-02-19 | 2005-09-22 | Verfahren und einrichtung zur herstellung von bauteilen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1848554A1 true EP1848554A1 (de) | 2007-10-31 |
| EP1848554B1 EP1848554B1 (de) | 2009-06-17 |
Family
ID=35336285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05794717A Expired - Lifetime EP1848554B1 (de) | 2005-02-19 | 2005-09-22 | Verfahren und einrichtung zur herstellung von bauteilen |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1848554B1 (de) |
| AT (1) | ATE433810T1 (de) |
| DE (2) | DE102005007997B3 (de) |
| ES (1) | ES2328834T3 (de) |
| WO (1) | WO2006086935A1 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007034938A1 (de) * | 2007-07-24 | 2009-01-29 | Hebö Maschinenfabrik GmbH | Verfahren und Vorrichtung zur Herstellung eines rohrförmigen Hohlprofils mit variierender Wanddicke |
| DE102007039662B4 (de) | 2007-08-22 | 2014-12-04 | Rheinmetall Waffe Munition Gmbh | Treibladungsanzünder |
| PL2151651T3 (pl) * | 2008-08-07 | 2011-06-30 | Condevo S P A | Bitermiczny wymiennik ciepła, sposób oraz instalacja do jego wytwarzania |
| DE102008049245A1 (de) * | 2008-09-26 | 2010-04-01 | F.W. Brökelmann Aluminiumwerk GmbH & Co. KG | Verfahren zur Umformung von Hohlprofilen |
| DE102014210357B4 (de) | 2014-06-02 | 2020-12-17 | Schaeffler Technologies AG & Co. KG | Rastierhülse für eine Schaltwelle sowie Schaltanordnung mit der Schaltwelle und der Rastierhülse |
| DE102016107950B4 (de) | 2016-04-28 | 2018-02-01 | Schuler Pressen Gmbh | Verfahren zum Fertigen eines hohlen Bauteils und Bauteil |
| PL446506A1 (pl) * | 2023-10-26 | 2025-04-28 | Zieta Prozessdesign Spółka Z Ograniczoną Odpowiedzialnością | Preforma elementu komorowego, sposób wytwarzania preformy elementu komorowego oraz sposób wytwarzania elementu komorowego |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1206072A (en) * | 1969-02-21 | 1970-09-23 | Masanobu Nakamura | Method of manufacturing rear axle casings for automobiles |
| JPS6270030A (ja) * | 1985-09-24 | 1987-03-31 | Orimupitsuku:Kk | 竿杆の成形方法 |
| DE19708905C2 (de) * | 1997-03-05 | 2002-06-27 | Daimler Chrysler Ag | Verfahren zum Herstellen von Karosserieträgern |
| US5992197A (en) * | 1997-03-28 | 1999-11-30 | The Budd Company | Forming technique using discrete heating zones |
| DE10042465C2 (de) * | 2000-08-29 | 2002-08-01 | Vaw Ver Aluminium Werke Ag | Verfahren zum Verformen von rohrförmigen Hohlkörpern aus Metall |
| JP4748861B2 (ja) * | 2001-01-19 | 2011-08-17 | 本田技研工業株式会社 | バルジ成形方法 |
| DE10120063C2 (de) * | 2001-04-24 | 2003-03-27 | Benteler Automobiltechnik Gmbh | Verfahren zur Herstellung von metallischen Profilbauteilen für Kraftfahrzeuge |
| JP2003126923A (ja) * | 2001-10-24 | 2003-05-08 | Honda Motor Co Ltd | 管状部材の成形方法 |
| DE10241028B3 (de) * | 2002-09-05 | 2004-07-29 | Erbslöh Ag | Verfahren zur Herstellung von bogenförmigen (gerundeten) Strukturbauteilen aus einem Strangpreßprofil |
-
2005
- 2005-02-19 DE DE102005007997A patent/DE102005007997B3/de not_active Expired - Lifetime
- 2005-09-22 ES ES05794717T patent/ES2328834T3/es not_active Expired - Lifetime
- 2005-09-22 DE DE502005007540T patent/DE502005007540D1/de not_active Expired - Lifetime
- 2005-09-22 WO PCT/DE2005/001670 patent/WO2006086935A1/de not_active Ceased
- 2005-09-22 AT AT05794717T patent/ATE433810T1/de not_active IP Right Cessation
- 2005-09-22 EP EP05794717A patent/EP1848554B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2006086935A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1848554B1 (de) | 2009-06-17 |
| DE502005007540D1 (de) | 2009-07-30 |
| ES2328834T3 (es) | 2009-11-18 |
| WO2006086935A1 (de) | 2006-08-24 |
| ATE433810T1 (de) | 2009-07-15 |
| DE102005007997B3 (de) | 2005-12-08 |
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