WO1994006581A2 - Procede de fabrication d'un corps moule realise par moulage par pression ou par emboutissage - Google Patents

Procede de fabrication d'un corps moule realise par moulage par pression ou par emboutissage Download PDF

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Publication number
WO1994006581A2
WO1994006581A2 PCT/DE1993/000883 DE9300883W WO9406581A2 WO 1994006581 A2 WO1994006581 A2 WO 1994006581A2 DE 9300883 W DE9300883 W DE 9300883W WO 9406581 A2 WO9406581 A2 WO 9406581A2
Authority
WO
WIPO (PCT)
Prior art keywords
sheet metal
formed body
thickness
metal part
deep
Prior art date
Application number
PCT/DE1993/000883
Other languages
German (de)
English (en)
Other versions
WO1994006581A3 (fr
Inventor
Rainer Hansen
Christian Sander
Wolfgang Streubel
Original Assignee
Benteler 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 Benteler Ag filed Critical Benteler Ag
Priority to EP93921780A priority Critical patent/EP0621812A1/fr
Publication of WO1994006581A2 publication Critical patent/WO1994006581A2/fr
Publication of WO1994006581A3 publication Critical patent/WO1994006581A3/fr

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
    • 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
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/24—Automatic variation of thickness according to a predetermined programme
    • 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
    • B21D53/00—Making other particular articles
    • B21D53/84—Making other particular articles other parts for engines, e.g. connecting-rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • B21H7/007—Taper rolling, e.g. leaf springs

Definitions

  • the present invention relates to a method for producing a molded body produced by pressing or deep-drawing in m different wall thicknesses from an initially flat sheet.
  • Shaped bodies made of sheet metal are subjected to different levels of stress in different areas depending on the application. For this reason, it is known to provide such For body with different wall thicknesses to aec this way on the one hand the expected loads and on the other hand to save material accordingly.
  • the present invention has for its object to provide a method of the generic type, according to which a molded body can be produced in a material and weight-saving design while avoiding any welding work.
  • This object is achieved in that a one-piece sheet metal part with a thickness corresponding to the greatest wall thickness of the shaped body to be used is used and, before pressing or deep drawing, only in those areas in which the shaped body is to have a smaller wall thickness, by rolling or corresponding other stretching process is reduced to the desired smaller thickness.
  • a molded article produced by this process is characterized in that the properties of the starting material are in no way impaired and that additional, complex welding work and reworking of the weld seams are avoided.
  • FIG. 1 shows a perspective illustration of a shaped body
  • Figure 2 is a side view of the molded body according to
  • FIG. 1 partially shown in section
  • FIG. 3 shows a top view of the molded body according to FIGS. 1 and 2,
  • FIG. 4 shows the detail designated IV in FIG. 2 in an enlarged representation
  • 5 to 7 are schematic representations to illustrate various options for reducing the thickness of the starting material for producing a shaped body.
  • FIG. 1 to 3 show, as an example of a shaped body in the sense of the present invention, a carrier 1 which has been produced from an initially flat sheet metal part by pressing or deep drawing.
  • This carrier 1 has a greater wall thickness in its central region la than in its two outer regions 1b. This shows the detail according to FIG. 4 particularly clearly.
  • the carrier 1 is made from a one-piece sheet metal part, the thickness of which corresponds to the greatest wall thickness of the central region 1 a of the carrier 1. Before pressing or deep-drawing this starting material, the sheet metal part in the later areas 1b of the carrier has been reduced to the desired smaller thickness by rolling out or corresponding stretching processes.
  • Figures 5 to 7 show a schematic representation of the possibilities of reducing the thickness when rolling out.
  • FIG. 5 illustrates that the sheet metal part, which is generally also referred to as a plate and is provided with the reference number 2 in FIGS then either a reversal of the rolling direction or an opening of the roller mill takes place.
  • FIG. 6 shows that the reduction in thickness of a blank 2 can also take place in that the blank 2 is pushed as a whole through the roller mill 3, the roller spacing being able to be changed.
  • a blank can also be pushed through a roller mill 3 with profile rollers 4 in order to achieve a reduction in the initial thickness in some areas.
  • the thickness reduction may, as shown in Figures 5 to 7 is sofa ⁇ , made on the prefabricated board 2, with simple components, there is also the possibility that a reduction Blechdicken ⁇ according to the scheme of Figures 6 and 7 take place at the wound coil may ⁇ tone , in which case the boards are then separated from the coil.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Metal Rolling (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un corps moulé réalisé par moulage par pression ou par emboutissage, dont les parois ont des épaisseurs différentes, à partir d'une pièce de tôle initialement plate. Un corps moulé de ce type, par exemple un longeron (1) dont la paroi est plus épaisse dans sa zone médiane (1a) et qui comporte des zones (1b) où l'épaisseur de la paroi est réduite, est réalisé, selon l'invention, à partir d'une pièce de tôle monobloc ayant une épaisseur qui correspond à l'épaisseur de paroi la plus importante du corps moulé (1) à réaliser. Avant le moulage par pression ou l'emboutissage, l'épaisseur de la pièce de tôle est ramenée à l'épaisseur la plus réduite recherchée, exclusivement dans les zones où le corps moulé devra comporter une paroi peu épaisse, par laminage ou tout autre procédé d'étirage approprié. Cette invention permet par conséquent de réduire les besoins en matériaux et le poids du corps moulé (1) au moment de la fabrication, tout en permettant de réaliser un corps moulé résistant à des charges élevées, du fait que la qualité du matériau de départ n'est pas altérée, comme c'est par exemple le cas lorsque le corps moulé est réalisé à partir de pièces de tôle ayant des épaisseurs différentes soudées ensemble.
PCT/DE1993/000883 1992-09-18 1993-09-17 Procede de fabrication d'un corps moule realise par moulage par pression ou par emboutissage WO1994006581A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP93921780A EP0621812A1 (fr) 1992-09-18 1993-09-17 Procede de fabrication d'un corps moule realise par moulage par pression ou par emboutissage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19924231213 DE4231213C2 (de) 1992-09-18 1992-09-18 Verfahren zum Herstellen eines trägerartigen Formkörpers
DEP4231213.2 1992-09-18

Publications (2)

Publication Number Publication Date
WO1994006581A2 true WO1994006581A2 (fr) 1994-03-31
WO1994006581A3 WO1994006581A3 (fr) 1994-07-07

Family

ID=6468227

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1993/000883 WO1994006581A2 (fr) 1992-09-18 1993-09-17 Procede de fabrication d'un corps moule realise par moulage par pression ou par emboutissage

Country Status (3)

Country Link
EP (1) EP0621812A1 (fr)
DE (1) DE4231213C2 (fr)
WO (1) WO1994006581A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015133464A1 (fr) * 2014-03-04 2015-09-11 新日鐵住金株式会社 Procédé de production d'article moulé à la presse, dispositif de production d'article moulé à la presse, mandrin et article moulé à la presse
WO2016087465A1 (fr) * 2014-12-01 2016-06-09 Ebert-Consulting Gmbh Longeron profilé pour châssis de véhicule et son procédé de fabrication
JP6531875B1 (ja) * 2017-10-04 2019-06-19 日本製鉄株式会社 トーションビーム製造方法及びトーションビーム製造装置

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0760265A1 (fr) 1995-08-26 1997-03-05 Benteler Ag Tube pour application à la fabrication d'éléments pour essieu de véhicule automobile et essieu de véhicule automobile avec un tel tube
DE19604357B4 (de) * 1996-02-07 2004-06-24 Benteler Ag Verfahren zur Herstellung von Rohren mit Abschnitten unterschiedlicher Wanddicke
DE19704300B4 (de) * 1997-02-06 2008-07-10 Benteler Ag Verfahren zur Herstellung von Platinen mit unterschiedlichen Dicken
DE19835998A1 (de) * 1998-08-08 2000-02-10 Volkswagen Ag Dichtkanal für eine Tür- oder Heckklappenöffnung bzw. Verfahren zu dessen Herstellung
DE10048312B4 (de) * 2000-09-29 2004-07-29 Benteler Ag Abstreckvorrichtung
DE10063040C2 (de) * 2000-12-18 2002-10-24 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung von in der Dicke bereichsweise variierenden Platinen
DE10103487A1 (de) * 2001-01-26 2002-08-01 Volkswagen Ag Verfahren zur Herstellung eines großflächigen Gebildes an Kraftfahrzeugen und großflächiges Gebilde dazu
DE10145241C2 (de) * 2001-09-13 2003-07-17 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung von in der Dicke variierenden Blechprodukten
DE10303184B3 (de) * 2003-01-28 2004-04-08 Benteler Automobiltechnik Gmbh Verfahren und Vorrichtung zur Herstellung von einer in ihrer Dicke mindestens in einem Bereich variierenden Platine
DE602004004053T2 (de) * 2003-12-25 2007-04-26 Honda Motor Co., Ltd. Stützelement
DE102004053258B4 (de) 2004-11-04 2020-07-09 Volkswagen Ag Längsträger für eine Fahrzeugkarosserie
DE102009052210B4 (de) 2009-11-06 2012-08-16 Voestalpine Automotive Gmbh Verfahren zum Herstellen von Bauteilen mit Bereichen unterschiedlicher Duktilität
DE102015118099A1 (de) 2015-10-23 2017-04-27 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines Kraftfahrzeugbauteils

Citations (6)

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Publication number Priority date Publication date Assignee Title
FR486940A (fr) * 1917-09-26 1918-05-16 Detroit Pressed Steel Co Procédé de fabrication d'articles en tole estampée ou emboutie
FR1054724A (fr) * 1952-04-21 1954-02-12 Procédé de fabrication de récipients de mesure pour liquides
US3499305A (en) * 1967-05-02 1970-03-10 Prp Corp Rolling mill and method of rolling strips
DE1937288A1 (de) * 1969-07-23 1971-02-11 Maschf Augsburg Nuernberg Ag Achsbruecke fuer Nutzkraftfahrzeuge
JPS57168731A (en) * 1981-04-09 1982-10-18 Hitachi Zosen Corp Monolithic forming of double sink
JPS6061106A (ja) * 1983-09-16 1985-04-08 Kawasaki Steel Corp 異厚鋼板の圧延方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59052C (de) * M. MANNESMANN in Remscheid-Bliedinghausen Verfahren und Walzwerk zum Formen und Kalibriren von stabförmigen Körpern und Platten mit pilgerschrittförmiger Bewegung des Werkstückes
US1998970A (en) * 1931-08-31 1935-04-23 Republic Steel Corp Die rolled article and die rolling method
JPS5024899B2 (fr) * 1971-09-18 1975-08-19
JPS59109466A (ja) * 1982-12-16 1984-06-25 Nissan Motor Co Ltd 主として曲げ荷重を受ける部位に用いられる自動車用メンバの製造方法
ATE73372T1 (de) * 1986-12-22 1992-03-15 Thyssen Stahl Ag Verfahren zum herstellen eines formkoerpers aus blechteilen unterschiedlicher dicke.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR486940A (fr) * 1917-09-26 1918-05-16 Detroit Pressed Steel Co Procédé de fabrication d'articles en tole estampée ou emboutie
FR1054724A (fr) * 1952-04-21 1954-02-12 Procédé de fabrication de récipients de mesure pour liquides
US3499305A (en) * 1967-05-02 1970-03-10 Prp Corp Rolling mill and method of rolling strips
DE1937288A1 (de) * 1969-07-23 1971-02-11 Maschf Augsburg Nuernberg Ag Achsbruecke fuer Nutzkraftfahrzeuge
JPS57168731A (en) * 1981-04-09 1982-10-18 Hitachi Zosen Corp Monolithic forming of double sink
JPS6061106A (ja) * 1983-09-16 1985-04-08 Kawasaki Steel Corp 異厚鋼板の圧延方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 7, no. 9 (M-185)(1154) 4. Januar 1983 & JP,A,57 168 731 (HITACHI) 18. Oktober 1982 *
PATENT ABSTRACTS OF JAPAN vol. 9, no. 194 (M-403)(1917) 10. August 1985 & JP,A,60 061 106 (KAWASAKI) 8. April 1985 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015133464A1 (fr) * 2014-03-04 2015-09-11 新日鐵住金株式会社 Procédé de production d'article moulé à la presse, dispositif de production d'article moulé à la presse, mandrin et article moulé à la presse
US10695814B2 (en) 2014-03-04 2020-06-30 Nippon Steel Corporation Method for manufacturing press-formed product, device for manufacturing press-formed product, mandrel, and press-formed product
WO2016087465A1 (fr) * 2014-12-01 2016-06-09 Ebert-Consulting Gmbh Longeron profilé pour châssis de véhicule et son procédé de fabrication
JP6531875B1 (ja) * 2017-10-04 2019-06-19 日本製鉄株式会社 トーションビーム製造方法及びトーションビーム製造装置
US11498107B2 (en) 2017-10-04 2022-11-15 Nippon Steel Corporation Torsion beam manufacturing method and torsion beam manufacturing apparatus

Also Published As

Publication number Publication date
WO1994006581A3 (fr) 1994-07-07
DE4231213A1 (de) 1994-03-24
EP0621812A1 (fr) 1994-11-02
DE4231213C2 (de) 1997-04-03

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