WO2001076787A1 - Verfahren zum herstellen von bauteilen mittels eines fliessfähigen wirkmediums sowie eines formwerkzeugs - Google Patents
Verfahren zum herstellen von bauteilen mittels eines fliessfähigen wirkmediums sowie eines formwerkzeugs Download PDFInfo
- Publication number
- WO2001076787A1 WO2001076787A1 PCT/EP2001/003816 EP0103816W WO0176787A1 WO 2001076787 A1 WO2001076787 A1 WO 2001076787A1 EP 0103816 W EP0103816 W EP 0103816W WO 0176787 A1 WO0176787 A1 WO 0176787A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- board
- preformed
- active medium
- preforming
- blank
- Prior art date
Links
- 230000009969 flowable effect Effects 0.000 title claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 title abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 238000000465 moulding Methods 0.000 claims description 9
- 238000007493 shaping process Methods 0.000 claims description 9
- 238000009826 distribution Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
- B21D26/021—Deforming sheet 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/205—Hydro-mechanical deep-drawing
-
- 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
- B21D22/20—Deep-drawing
- B21D22/26—Deep-drawing for making peculiarly, e.g. irregularly, shaped 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
- 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
- B21D26/053—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 characterised by the material of the blanks
- B21D26/059—Layered blanks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49805—Shaping by direct application of fluent pressure
Definitions
- the invention relates to a method for producing components from a board consisting of a thermoformable material, in particular steel, using a flowable active medium.
- the shaping of single boards with the aid of liquid active media is suitable on the one hand and the internal high pressure forming of welded boards or similar hollow bodies on the other hand.
- the blanks are usually brought into their final shape by means of a stamp or a comparable molding tool, the molding tool used in each case (stamp or die) working against a support pressure applied by a fluid cushion.
- stamp or die the molding tool used in each case working against a support pressure applied by a fluid cushion.
- internal high-pressure forming on the other hand, a cavity present between the blanks or in the hollow body is filled with hydraulic fluid and subjected to high pressure. Due to the internal pressure generated in this way, the respective workpiece is pressed into the shape predetermined by a die surrounding the workpiece.
- such intermediate molds are also produced in practice by hydromechanical forming.
- the blank to be formed is preformed in the actual forming tool before the main forming by means of the active medium. Only after the pre-forming has been completed does the actual final forming take place, in which the workpiece is only deformed.
- the preform geometry generally corresponds at least to the outline of the shaping tool element.
- this procedure for pre-forming proves to be unfavorable with regard to the subsequent main forming.
- this disadvantage is offset by the advantage that higher shape changes can be achieved in the center of the component, so that solidifications can be produced in a targeted manner and the material properties can be better utilized.
- the object of the invention is to provide a method with which complex-shaped components can be produced using the properties of the material used in an optimized manner.
- this object is achieved by a method of the type specified at the outset, in which the following steps are carried out:
- partially preformed semi-finished products are produced from the blank in a suitable forming device using flowable active media.
- the final shape of the component is then formed from this preformed semi-finished product.
- preforming takes place only in a limited area of the board.
- preforming does not serve to form certain shaped elements, which are formed into the final shape in a further working stroke, but rather a preform is created that is optimal for material deformation and distribution, as well as the utilization of material properties the required properties of the component ultimately to be manufactured is prepared.
- the preform is thus only produced in the areas in which it is necessary with regard to the geometric (development) and / or component-specific properties (strength).
- the preforming of the board can take place without or with the help of a counterform.
- Preforming without a counterform has the advantage that the material of the blank can flow freely during the preforming, so that, for example, an optimized strength of the preform is achieved.
- the use of a counterform has the advantage that the preform can also be optimally prepared for the final shape to be produced with regard to its spatial configuration. A compromise can be found between the free and the complete forming in a counterform in that the preformed area of the blank at the end of the preforming only rests against the counterform in a partial area, while a free deformation takes place in the other partial area.
- the preformed blank is preferably reshaped to the final shape of the component against a support pressure exerted by an active medium. In this way, a precisely shaped, high-quality component can be produced in a gentle manner, which has optimized mechanical properties and a good visual appearance due to the gentle processing.
- the blanks preformed according to the invention can be together with one another before the final shaping to give the final shape of the component connect so that particularly large-area components or components can be manufactured in which the material distribution or the thickness of the material present in the areas • of the various boards are specifically adapted to the local stresses of the component that occur in practical use.
- the boards can be connected to one another in a material, non-positive and / or positive manner. Alternatively, loosely lying blanks can be brought together into the final shape after preforming.
- Hollow molds can be formed particularly easily with the method according to the invention if a cavity already exists between the preformed blanks lying on top of one another and possibly connected to one another.
- the molds formed in this way are particularly suitable for being formed by internal high pressure forming into the final shape of the component, in which the cavity is subjected to high pressure during the final deformation of the blanks to the final shape.
- Figure 1 is a sheet made of sheet metal in a perspective view.
- Figure 3 shows the cross-section of the blank preformed in the course of the component shown in FIG. 2;
- Figure 4 is another sheet made of thin sheet in a perspective view.
- FIG. 5 shows a cross-section of a hollow shape formed by two preformed blanks of the type shown in FIG. 4;
- FIG. 6 shows another cross-section of a hollow mold formed by two preformed blanks of the type shown in FIG. 4;
- FIG. 7 shows a first device for preforming blanks of the type shown in FIG. 1 or 4 in cross section
- FIG. 8 shows a second device for preforming blanks of the type shown in FIG. 1 or 4 in cross section
- Fig. 9 shows a first device for the final molding of in
- Fig. 10 shows a second device for the final molding of blanks preformed in devices of the type shown in Fig. 7 or 8 in cross section.
- the respective board P1, P2 is divided into individual areas B1, V1 and B2, V2, respectively.
- the position of the areas VI and V2 of the plates P1 and P2 provided for the pre-deformation depends on the generating geometry of the finished component.
- the development ratio shown by way of example in FIG. 2 over the cross section of the finished component therefore plays a decisive role in the design of this area VI, V2.
- the geometry of the partially preformed blanks P1, P2 and P3 shown by way of example in FIGS. 3 and 5 and ⁇ is to be designed in such a way that in the final shaping which follows the preforming, there is no failure due to material overload or inadmissible fold formation.
- the area VI or V2 provided for the pre-deformation can, if necessary, lie within the outline of the area B1 (FIG. 3) from which the component to be produced is finished. Its contour is indicated in FIG. 3 by dashed lines and corresponds to that shown in FIG. 2.
- Forming devices U1, U2 are used for preforming the plate P1 or a plate P4 divided into a region to be preformed and a region corresponding to the plate P2 from which the final shape of the component to be produced is produced. These each have a container 1 filled with a liquid active medium, for example Was.ser.
- the shaping devices U1, U2 are each equipped with a holding device 2, which hold the respective plate P1, P4 to be preformed in its edge regions on the edge surrounding an opening of the container 1. In this way, the plate P1 or P4 is stretched over the opening so that the active medium can be applied to its side assigned to the inside of the container.
- the course of the edge of the opening of the container 1 corresponds in each case to the course of the edge of the region VI or V2 provided for the preforming of the board P 1, P 4 processed in each case.
- the forming device U2 In contrast to the forming device U1, in which, as shown in FIG. 7 using the example of the board Pl, the preforming of the board Pl takes place without a counterform, the forming device U2 is equipped with a counterform 3, which is at a distance from the in this example via the Opening of the container 1 tensioned circuit board P4 is arranged.
- the respective plate P1 or P4 is arched out in the region of the container opening in an outward movement.
- a completely free flow of the steel material of the plate P1 is permitted in the forming device U1 until the end of the pre-forming.
- the pre-deformed area V2 of the plate P4 comes into contact with the counterform 3 after a certain time of free deformation, so that the shape of the counterform 3 is impressed on a partial section of the pre-deformed area V2.
- the geometry and the dimensions of the freely deformed section V2a of the board P4 are dependent on the position of the counterform 3 in relation to the opening of the container 1.
- the blanks P1-P4 can each be individually finished to form the respective component (FIG. 2).
- a device F1 equipped in a conventional manner with a stamp 10 and a die 11 can be used, as is shown by way of example in FIG. 9.
- the final shaping of the blanks P1-P4 can also be carried out in a device F2 which has a container 20 for an active medium 21, in particular water, and a holding device 22.
- the holding device 22 for example, the preformed board P1 is held in the opening of the container 20.
- the blank PL is then finished by means of a stamp 23 which can be inserted into the opening of the container 20 and in the end face of which the shape of the component to be produced is molded.
- a stamp 23 which can be inserted into the opening of the container 20 and in the end face of which the shape of the component to be produced is molded.
- the preformed plate P1 is drawn into the container 20.
- the active medium contained in the container 20 exerts a support pressure S directed counter to the force of the plunger 23, so that the preformed plate Pl increases with increasing stroke of the Stamp 23 places on this and thus receives the shape specified by the stamp 23.
- the preformed hollow bodies H1, H2 can be finished particularly well by applying high internal pressure.
- the hollow bodies H1, H2 are positioned in a die of a suitable device (not shown here) and filled with a flowable active medium, for example water. Then the active medium is pressurized so that the sheet material of the respective hollow body Hl, H2 expands until it lies completely against the walls of the die.
- a flowable active medium for example water.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/240,427 US6832501B2 (en) | 2000-04-05 | 2001-04-04 | Method for producing components using a flowable active medium and a forming tool |
AT01936183T ATE291506T1 (de) | 2000-04-05 | 2001-04-04 | Verfahren zum herstellen von bauteilen mittels eines fliessfähigen wirkmediums sowie eines formwerkzeugs |
AU2001262167A AU2001262167A1 (en) | 2000-04-05 | 2001-04-04 | Method for producing components using a flowable active medium and a forming tool |
EP01936183A EP1268099B1 (de) | 2000-04-05 | 2001-04-04 | Verfahren zum herstellen von bauteilen mittels eines fliessfähigen wirkmediums sowie eines formwerkzeugs |
DE50105689T DE50105689D1 (de) | 2000-04-05 | 2001-04-04 | Verfahren zum herstellen von bauteilen mittels eines fliessfähigen wirkmediums sowie eines formwerkzeugs |
JP2001574294A JP2003530220A (ja) | 2000-04-05 | 2001-04-04 | 部品製造方法 |
CA002397967A CA2397967A1 (en) | 2000-04-05 | 2001-04-04 | Method for producing components using a flowable active medium and a forming tool |
BR0109782-2A BR0109782A (pt) | 2000-04-05 | 2001-04-04 | Método para produzir componentes |
MXPA02009845A MXPA02009845A (es) | 2000-04-05 | 2001-04-04 | Metodo para producir componentes utilizando un medio activo que puede fluir. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10016803A DE10016803B4 (de) | 2000-04-05 | 2000-04-05 | Verfahren zum Herstellen von Bauteilen |
DE10016803.5 | 2000-04-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001076787A1 true WO2001076787A1 (de) | 2001-10-18 |
Family
ID=7637598
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/003816 WO2001076787A1 (de) | 2000-04-05 | 2001-04-04 | Verfahren zum herstellen von bauteilen mittels eines fliessfähigen wirkmediums sowie eines formwerkzeugs |
Country Status (15)
Country | Link |
---|---|
US (1) | US6832501B2 (de) |
EP (1) | EP1268099B1 (de) |
JP (1) | JP2003530220A (de) |
CN (1) | CN1418137A (de) |
AT (1) | ATE291506T1 (de) |
AU (1) | AU2001262167A1 (de) |
BR (1) | BR0109782A (de) |
CA (1) | CA2397967A1 (de) |
CZ (1) | CZ296757B6 (de) |
DE (2) | DE10016803B4 (de) |
ES (1) | ES2240458T3 (de) |
MX (1) | MXPA02009845A (de) |
PL (1) | PL365699A1 (de) |
PT (1) | PT1268099E (de) |
WO (1) | WO2001076787A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7363790B2 (en) * | 2005-08-30 | 2008-04-29 | Gm Global Technology Operations, Inc. | Method for vaccum assisted preforming of superplastically or quick plastically formed article |
CN100355513C (zh) * | 2006-01-26 | 2007-12-19 | 吴新华 | 一种组合式不锈钢水箱板液压成型的方法 |
US10525519B2 (en) | 2009-10-21 | 2020-01-07 | Stolle Machinery Company, Llc | Container, and selectively formed cup, tooling and associated method for providing same |
US8439222B2 (en) * | 2009-10-21 | 2013-05-14 | Stolle Machinery Company, Llc | Container, and selectively formed cup |
JP5611257B2 (ja) | 2012-03-13 | 2014-10-22 | パナソニック株式会社 | 金属ラミネートフィルム成形方法およびその成形装置 |
KR101696098B1 (ko) * | 2015-09-15 | 2017-01-13 | 주식회사 포스코 | 제품 성형 방법과 장치 및 제품 |
CN116984467B (zh) * | 2023-09-26 | 2023-12-15 | 合肥工业大学 | 一种超薄金属极板超声辅助精确成形方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5632172A (en) * | 1994-09-29 | 1997-05-27 | Smg Suddeutsche Maschinenbau Gmbh | Method and device for forming sheet metal |
DE19714888A1 (de) * | 1997-04-10 | 1998-10-15 | Kleiner Matthias Prof Dr Ing | Verfahren und Vorrichtung zur Herstellung von Formteilen aus nicht miteinander verbundenen Blechzuschnitten |
DE19732413A1 (de) * | 1997-07-28 | 1999-02-18 | Forschungsges Umformtechnik | Verfahren und Vorrichtung zum kombinierten Hydro-Umformen von Metallblech |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4232161A1 (de) * | 1992-09-25 | 1994-03-31 | Audi Ag | Verfahren zum Herstellen eines Hohlkörpers |
DE19624036A1 (de) * | 1996-06-17 | 1997-12-18 | Matthias Prof Dr Ing Kleiner | Verfahren und Werkzeugsystem zum pneumomechanischen Tiefziehen |
DE19717953A1 (de) * | 1997-04-28 | 1998-10-29 | Bayerische Motoren Werke Ag | Verfahren zum hydromechanischen Stülpziehen von Metallblechen |
-
2000
- 2000-04-05 DE DE10016803A patent/DE10016803B4/de not_active Expired - Fee Related
-
2001
- 2001-04-04 CZ CZ20023284A patent/CZ296757B6/cs not_active IP Right Cessation
- 2001-04-04 CN CN01806847A patent/CN1418137A/zh active Pending
- 2001-04-04 WO PCT/EP2001/003816 patent/WO2001076787A1/de active IP Right Grant
- 2001-04-04 BR BR0109782-2A patent/BR0109782A/pt not_active IP Right Cessation
- 2001-04-04 DE DE50105689T patent/DE50105689D1/de not_active Expired - Fee Related
- 2001-04-04 PL PL01365699A patent/PL365699A1/xx unknown
- 2001-04-04 AU AU2001262167A patent/AU2001262167A1/en not_active Abandoned
- 2001-04-04 ES ES01936183T patent/ES2240458T3/es not_active Expired - Lifetime
- 2001-04-04 MX MXPA02009845A patent/MXPA02009845A/es active IP Right Grant
- 2001-04-04 US US10/240,427 patent/US6832501B2/en not_active Expired - Fee Related
- 2001-04-04 PT PT01936183T patent/PT1268099E/pt unknown
- 2001-04-04 CA CA002397967A patent/CA2397967A1/en not_active Abandoned
- 2001-04-04 JP JP2001574294A patent/JP2003530220A/ja active Pending
- 2001-04-04 EP EP01936183A patent/EP1268099B1/de not_active Expired - Lifetime
- 2001-04-04 AT AT01936183T patent/ATE291506T1/de not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5632172A (en) * | 1994-09-29 | 1997-05-27 | Smg Suddeutsche Maschinenbau Gmbh | Method and device for forming sheet metal |
DE19714888A1 (de) * | 1997-04-10 | 1998-10-15 | Kleiner Matthias Prof Dr Ing | Verfahren und Vorrichtung zur Herstellung von Formteilen aus nicht miteinander verbundenen Blechzuschnitten |
DE19732413A1 (de) * | 1997-07-28 | 1999-02-18 | Forschungsges Umformtechnik | Verfahren und Vorrichtung zum kombinierten Hydro-Umformen von Metallblech |
Also Published As
Publication number | Publication date |
---|---|
CA2397967A1 (en) | 2001-10-18 |
US20030140672A1 (en) | 2003-07-31 |
US6832501B2 (en) | 2004-12-21 |
DE10016803A1 (de) | 2001-10-18 |
CZ296757B6 (cs) | 2006-06-14 |
MXPA02009845A (es) | 2004-09-13 |
PT1268099E (pt) | 2005-08-31 |
AU2001262167A1 (en) | 2001-10-23 |
EP1268099B1 (de) | 2005-03-23 |
ATE291506T1 (de) | 2005-04-15 |
CN1418137A (zh) | 2003-05-14 |
ES2240458T3 (es) | 2005-10-16 |
EP1268099A1 (de) | 2003-01-02 |
DE50105689D1 (de) | 2005-04-28 |
PL365699A1 (en) | 2005-01-10 |
BR0109782A (pt) | 2003-01-21 |
CZ20023284A3 (cs) | 2003-05-14 |
JP2003530220A (ja) | 2003-10-14 |
DE10016803B4 (de) | 2006-06-08 |
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