EP1097758A2 - Méthode de formage d' une large tôle, en particulier une partie de carrosserie d'un véhicule - Google Patents

Méthode de formage d' une large tôle, en particulier une partie de carrosserie d'un véhicule Download PDF

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Publication number
EP1097758A2
EP1097758A2 EP00119880A EP00119880A EP1097758A2 EP 1097758 A2 EP1097758 A2 EP 1097758A2 EP 00119880 A EP00119880 A EP 00119880A EP 00119880 A EP00119880 A EP 00119880A EP 1097758 A2 EP1097758 A2 EP 1097758A2
Authority
EP
European Patent Office
Prior art keywords
forming tool
die
board
sheet metal
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
EP00119880A
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German (de)
English (en)
Other versions
EP1097758A3 (fr
EP1097758B1 (fr
Inventor
Rolf Heyll
Robert Koehr
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.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche 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 Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of EP1097758A2 publication Critical patent/EP1097758A2/fr
Publication of EP1097758A3 publication Critical patent/EP1097758A3/fr
Application granted granted Critical
Publication of EP1097758B1 publication Critical patent/EP1097758B1/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
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • 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
    • 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

Definitions

  • the invention relates to a method for producing a large sheet metal part, in particular a body component for a vehicle from a flat circuit board.
  • Deep drawing takes place in hydraulic or mechanical Drawing presses instead.
  • a flat, trimmed sheet metal part, the board is in a conventional forming tool is inserted and stretched and compressed into one Formed hollow body.
  • large-area sheet metal parts manufactured in this way shown that they are particularly in the middle with a small curvature of their Area extension are relatively soft and have only a low buckling stiffness there.
  • Hydromechanical deep drawing is also used to manufacture sheet metal parts. known. These processes do not require a die, but rather presses Pull the clamped board into a one filled with an active medium (water) Vessel that replaces the die. The water pressure causes the sheet to form of the drawing die.
  • the clamped Blank pre-stretched before the actual shaping process to a to achieve increased drawing and thus an increased solidification in the middle of the sinker.
  • the object of the invention is a method for producing a large area To create sheet metal part from a flat board, which with increased buckling stiffness in the Short cycle times of the sheet metal part in the middle of the board.
  • the main advantages achieved with the invention are the fact that by combining two known processes for the first time, namely the stretching of one First, level the board using the active medium to achieve strain hardening in the middle of the board and the conventional pressing (deep drawing) of sheet metal parts Advantages of both processes - optimized component behavior and high process effectiveness - come to fruition.
  • the pre-stretched sheets can be produced on systems with relatively low clamping forces as the maximum pressures required are approx. 15 bar. Even mechanical Presses can be used.
  • the well-known hydromechanical Finished forms require high pressures, which in turn lead to high press clamping forces lead, are not necessary in the method according to the invention, since the final molding done here conventionally. Because the stretching in contrast to the hydromechanical Finished molds take up little time, the cycle time at The inventive method significantly reduced.
  • pre-stretched sheets are in a linked press line as first operation imaginable.
  • the semi-finished product Pre-stretched blanks (comparable to tailored blanks) at the press shop to be delivered.
  • tailored blanks are also for further weight reduction conceivable.
  • consolidation e.g. in the area of the thinner sheet local increase in buckling stiffness can be used (example Floor panel / tunnel / floor panel).
  • Pre-stretched boards can also be found in soft tools commonly used in prototype manufacturing Find use, be used. So far it was not possible because of the high Occurring pressures of hydromechanically manufactured parts using so-called soft tools to reshape.
  • An increased component rigidity can be achieved by the method according to the invention again a significant weight reduction potential through the use of thinner Sheet metal offers can be achieved without the previous disadvantages of hydromechanical formed sheets - very high process cycle time and high system costs - in purchase to have to take. It can be the conventional sheet metal forming processes achieve comparable cycle times. A separate production of the preformed blanks e.g. can be carried out at the semi-finished product manufacturer. So it is also a commitment for Prototype components are almost cost-neutral.
  • a body part For a vehicle For producing a large-area sheet metal part 1, in particular a body part For a vehicle, first cut or punch a flat Board 2 created. This board 2 is then placed in a forming tool 3, that consists of a fixed lower part 4 and an upper movable die 5 put together. Connected to the die 5 are spaced apart Hold-down device 6 which, when the forming tool 3 is closed, against the top of the Press board 2 and thus position it correctly in the forming tool 3.
  • the cavity 7 there is a cavity 7 in the lower part 4 adjacent to the circuit board 2 provided for an active medium 8.
  • the cavity 7 has an inlet or outlet 9 provided for the active medium 8.
  • a liquid is preferably used as the active medium 8 (Water, oil or the like) is used.
  • the active medium 8 could also be pneumatic be trained (e.g. air).
  • the die 5 has a profiled on its underside Shape up.
  • the pre-stretched, profiled Preform 10 removed from the forming tool and into a conventional one multi-part deep-drawing tool 11 inserted and there in a deep-drawing process in the Formed end shape 12.
  • the deep drawing tool 11 comprises a fixed lower part 13 with an insert 14 which determines the final shape 12, a movable upper part 15 and Hold-down device 16.
  • the circuit board 2 can have one over the entire area have constant wall thickness; however, the board 2 can also be used as a tailored blanks component be trained.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
EP00119880A 1999-11-05 2000-09-13 Méthode de formage d' une large tôle, en particulier une partie de carrosserie d'un véhicule Expired - Lifetime EP1097758B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19953522A DE19953522A1 (de) 1999-11-05 1999-11-05 Verfahren zur Herstellung eines großflächigen Blechteiles, insbesondere eines Karosseriebauteiles für ein Fahrzeug
DE19953522 1999-11-05

Publications (3)

Publication Number Publication Date
EP1097758A2 true EP1097758A2 (fr) 2001-05-09
EP1097758A3 EP1097758A3 (fr) 2002-01-02
EP1097758B1 EP1097758B1 (fr) 2004-12-01

Family

ID=7928191

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00119880A Expired - Lifetime EP1097758B1 (fr) 1999-11-05 2000-09-13 Méthode de formage d' une large tôle, en particulier une partie de carrosserie d'un véhicule

Country Status (6)

Country Link
US (1) US6675620B1 (fr)
EP (1) EP1097758B1 (fr)
JP (1) JP2001162330A (fr)
KR (1) KR20010051446A (fr)
DE (2) DE19953522A1 (fr)
ES (1) ES2228374T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1019185C2 (nl) * 2001-10-17 2003-04-18 Corus Staal Bv Werkwijze voor het vervaardigen van een houder en houder voor het opnemen van een vloeistof en/of gas.
WO2003033186A1 (fr) * 2001-10-17 2003-04-24 Corus Staal Bv Procede permettant de produire un contenant pour fluide sous pression et contenant de ce type
WO2012069108A1 (fr) * 2010-11-26 2012-05-31 Daimler Ag Procédé et dispositif pour réaliser des composant destinés à une pile électrochimique, notamment à une pile à combustible, ou à un accumulateur d'énergie électrochimique

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003053438A (ja) * 2001-08-10 2003-02-26 Showa Denko Kk 張出し成形加工方法および容器
US6796267B2 (en) 2001-12-18 2004-09-28 Dubarry Suzanne Reminder for periodic tasks including taking medication
FR2851579B1 (fr) * 2003-02-26 2005-04-01 Pechiney Rhenalu PROCEDE D'EMBOUTISSAGE A TIEDE DE PIECES EN ALLIAGE A1-Mg
DE10347601B4 (de) * 2003-10-14 2011-01-27 Benteler Automobiltechnik Gmbh Vorrichtung und Verfahren zum hydraulischen Hochdruckumformen einer Platine
DE102004054120B4 (de) * 2004-11-08 2006-08-24 Thyssenkrupp Steel Ag Verfahren zum Umformen einer großflächigen Blechplatine zu einem Formteil, wie einem Außenhautteil einer Kraftfahrzeugkarosserie
DE102005001829B4 (de) * 2005-01-14 2009-05-07 Audi Ag Verfahren zum Umformen einer Platine
US7703820B2 (en) * 2005-04-29 2010-04-27 Autotech Engineering, A.I.E. Bumper reinforcing cross-member
DE102006040893B3 (de) * 2006-08-31 2008-01-10 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines Blechbauteils für Kraftfahrzeuge
US20090272171A1 (en) * 2008-05-05 2009-11-05 Ford Global Technologies, Llc Method of designing and forming a sheet metal part
US9522419B2 (en) * 2008-05-05 2016-12-20 Ford Global Technologies, Llc Method and apparatus for making a part by first forming an intermediate part that has donor pockets in predicted low strain areas adjacent to predicted high strain areas
JP5941369B2 (ja) * 2012-08-10 2016-06-29 株式会社エイチワン 液圧成形方法および液圧成形装置
CN106238551A (zh) * 2016-07-28 2016-12-21 南昌航空大学 一种基于在普通液压机上实现板材液压成形的装置及方法
JP6596466B2 (ja) * 2017-06-06 2019-10-23 株式会社Ｓｕｂａｒｕ 車両用パネル構造
DE102020120760B4 (de) 2020-08-06 2022-03-24 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Fertigungsanlage und Verfahren zum Betreiben einer Fertigungsanlage

Citations (5)

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JPS5966939A (ja) * 1982-10-07 1984-04-16 Honda Motor Co Ltd フランジ付カツプ状物のプレス成形方法
JPH05212463A (ja) * 1992-02-05 1993-08-24 Nippon Steel Corp 液圧及び金型の併用による金属薄板の成形装置
JPH06545A (ja) * 1991-03-19 1994-01-11 Yamaha Corp ゴルフクラブヘッドの製法
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

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US4045986A (en) * 1976-04-05 1977-09-06 T.I. Superform Forming ductile materials
CH633203A5 (de) * 1978-03-31 1982-11-30 Alusuisse Verfahren und vorrichtung zum herstellen einer verpackungsmulde in einer metall-kunststoffverbundfolie.
US5322206A (en) 1991-03-19 1994-06-21 Yamaha Corporation Golf club head and a process for producing the same
US5823032A (en) * 1994-04-07 1998-10-20 The Boeing Company Prethinning for superplastic forming
DE4434799A1 (de) * 1994-09-29 1996-04-04 Smg Sueddeutsche Maschinenbau Verfahren und Vorrichtung zum Umformen von Metallblech

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
JPS5966939A (ja) * 1982-10-07 1984-04-16 Honda Motor Co Ltd フランジ付カツプ状物のプレス成形方法
JPH06545A (ja) * 1991-03-19 1994-01-11 Yamaha Corp ゴルフクラブヘッドの製法
JPH05212463A (ja) * 1992-02-05 1993-08-24 Nippon Steel Corp 液圧及び金型の併用による金属薄板の成形装置
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

Non-Patent Citations (3)

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Title
PATENT ABSTRACTS OF JAPAN vol. 008, no. 174 (M-316), 10. August 1984 (1984-08-10) -& JP 59 066939 A (HONDA GIKEN KOGYO KK), 16. April 1984 (1984-04-16) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 651 (M-1519), 3. Dezember 1993 (1993-12-03) -& JP 05 212463 A (NIPPON STEEL CORP), 24. August 1993 (1993-08-24) *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 190 (M-1586), 31. März 1994 (1994-03-31) -& JP 06 000545 A (YAMAHA CORP;OTHERS: 01), 11. Januar 1994 (1994-01-11) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1019185C2 (nl) * 2001-10-17 2003-04-18 Corus Staal Bv Werkwijze voor het vervaardigen van een houder en houder voor het opnemen van een vloeistof en/of gas.
WO2003033186A1 (fr) * 2001-10-17 2003-04-24 Corus Staal Bv Procede permettant de produire un contenant pour fluide sous pression et contenant de ce type
WO2012069108A1 (fr) * 2010-11-26 2012-05-31 Daimler Ag Procédé et dispositif pour réaliser des composant destinés à une pile électrochimique, notamment à une pile à combustible, ou à un accumulateur d'énergie électrochimique

Also Published As

Publication number Publication date
DE19953522A1 (de) 2001-05-17
EP1097758A3 (fr) 2002-01-02
DE50008822D1 (de) 2005-01-05
EP1097758B1 (fr) 2004-12-01
KR20010051446A (ko) 2001-06-25
US6675620B1 (en) 2004-01-13
ES2228374T3 (es) 2005-04-16
JP2001162330A (ja) 2001-06-19

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