EP1818115A1 - Procédé de fabrication d'un élément structurel ou de châssis pour véhicules automobiles et élément structurel ou de chassis - Google Patents

Procédé de fabrication d'un élément structurel ou de châssis pour véhicules automobiles et élément structurel ou de chassis Download PDF

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Publication number
EP1818115A1
EP1818115A1 EP07000296A EP07000296A EP1818115A1 EP 1818115 A1 EP1818115 A1 EP 1818115A1 EP 07000296 A EP07000296 A EP 07000296A EP 07000296 A EP07000296 A EP 07000296A EP 1818115 A1 EP1818115 A1 EP 1818115A1
Authority
EP
European Patent Office
Prior art keywords
structural
edge
chassis component
press tool
bead
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
EP07000296A
Other languages
German (de)
English (en)
Other versions
EP1818115B1 (fr
Inventor
Hans-Jürgen Knaup
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.)
Benteler Automobiltechnik GmbH
Original Assignee
Benteler Automobiltechnik GmbH
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 Automobiltechnik GmbH filed Critical Benteler Automobiltechnik GmbH
Publication of EP1818115A1 publication Critical patent/EP1818115A1/fr
Application granted granted Critical
Publication of EP1818115B1 publication Critical patent/EP1818115B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • 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
    • B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
    • 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
    • Y10T29/49616—Structural member making
    • Y10T29/49622—Vehicular structural member making

Definitions

  • the invention relates to a method for producing a structural or chassis component for motor vehicles and, on the other hand, to such a structural or chassis component.
  • the trimming edges are very often a weak point from which cracks go out, especially under dynamic load or in the event of a crash.
  • the reasons for this are the operational high loads in these edge areas.
  • structural changes and micro-cracks occur during mechanical trimming, which increase the susceptibility of the structure or chassis components to cracking.
  • the sheet thickness at the trim edge is reduced due to the necessary cutting pressure.
  • the technological background also includes the DE 33 43 709 A1 .
  • a method for producing a structural or chassis component in the form of a frame part for motor vehicles is described.
  • the frame component is formed from a blank in a press tool with the special feature that there the blank is partially rolled off and thus has sections of different thickness.
  • the invention is based on the prior art, the task of demonstrating a method for the production of structural or chassis components for motor vehicles with improved and more accurate edge properties and to create a structure or chassis component which is improved with respect to its load behavior.
  • a board made of steel or a light metal is used.
  • a material storage is provided, which is moved and transformed during the forming process in other areas of the structural or chassis component.
  • the board is pressed during the forming process to the structural or chassis component at least at one edge against an abutment in the press tool and formed the material storage in a recess in the press tool. This results in a precise, precisely defined longitudinal edge region on the edge of the structural or chassis component.
  • the procedure according to the invention ensures component edges of high quality, in which microcracks are reliably cold-solidified or hot-pressed.
  • the susceptibility to cracking of the structural or chassis components in the edge region is significantly reduced and overall increases the life of a structural or chassis component according to the invention.
  • the edge of the board is formed in the press tool such that a bead is formed at the edge.
  • One or more beads can be produced on the structural or chassis component. According to the invention, it is provided that a bead is applied, above all, in regions of a structural or chassis component that are subject to cracking or tight tolerances.
  • a circuit board can be used, which has a certain excess compared with the development of the structural or chassis component, so that the Board has a reserve of material to produce one or more beads on the edges.
  • the otherwise often customary subsequent trimming of the outer contour of the structural or chassis components due to fluctuations in the outer contour can be dispensed with. Due to the targeted provision and subsequent displacement of material in the area of the outer edge with defined shaping of the edges subsequent trimming operations are saved. This procedure is particularly suitable for hot-formed press-hardened structural or chassis components.
  • a particularly advantageous embodiment of the method according to the invention provides, initially at least along an edge of the board at a small distance from the outer edge of the board to form a wavy material storage in the manner of a bead.
  • the bead serves as a material reserve during the forming process.
  • the board is formed in the press tool for structural or chassis component.
  • the material storage is leveled in the press tool under material displacement in the direction of the outer edge, so that arises at the edge of the bead.
  • the material storage can be introduced simultaneously with the cutting of the board in a subsequent tool without a separate operation.
  • the edge can also be designed with recesses and as a hole edge.
  • the circuit board or the structural or chassis component may have perforations, for example holes or similar recesses, which are finally shaped to tolerance during the forming process in the press tool.
  • the edge of the openings can also be provided with a bead.
  • the structure or chassis component can be formed both warm and cold.
  • advantageously at least partial hardening of the structural or chassis component in the press tool can be carried out.
  • the structural or chassis component comprises a shell body produced by the method according to the invention.
  • the shell body has a U-shaped or V-shaped cross-section with a web and two legs, with the ends preferably connected to the legs outwardly directed flanges.
  • a bead extends along the edge of the component. This bead protrudes toward the bridge opposite the flange.
  • To complete the shell body is closed by a strike plate, which is joined at each of the flanges with the shell body. The joining takes place at the flat side of the flanges lying opposite the bead so that flat contact surfaces of the flanges and the striking plate are placed against one another and joined.
  • the beads thus do not present an obstacle during joining, in particular during spot welding.
  • the structure or chassis component according to the invention is highly resilient both statically and dynamically and has a significantly lower susceptibility to crack formation at the component edges.
  • Figure 1 shows a circuit board 1 made of steel or a light metal. This has been separated from a coil and optionally pre-assembled by means of a cutting operation.
  • the circuit board 1 is used to produce a structural or chassis component for motor vehicles.
  • a wavy material storage 6, 7 formed in the manner of a bead.
  • the material stores 6, 7 can be produced when trimming the board 1 in a follower tool.
  • the board 1 provided with the material stores 6, 7 is then converted into a structural or chassis component 9 in a press tool 8, as shown in FIG. 3 (see also FIGS. 4 and 5).
  • the press tool 8 may be a cold forming or a hot forming tool.
  • the pressing tool 8 comprises an upper tool 10 and a lower tool 11, between which a forming space 12 is formed during the forming process.
  • the circuit board 1 is inserted into the press tool and the upper tool 10 and the lower tool 11 are displaced relative to each other ( Figure 3a).
  • a shell body 13 is formed with a U-shaped cross-section, which has a web 14 and two legs 15, 16, to which each end facing outward flanges 17, 18th connect.
  • the material supplies 6, 7 are leveled with material displacement in the direction of the outer edges 4, 5.
  • the edges 2, 3 of the board 1 are each pressed against an abutment 19, 20 in the lower tool 11 of the press tool 8 and formed into a recess 21, 22 in the upper tool 10 of the press tool 8, so that at the edges 2, 3 each have a bead 23, 24 arises.
  • the beads 23, 24 provide defined longitudinal edge areas along the edges 2, 3 on the structural or chassis component 9 safely with low susceptibility to cracking and high dimensional accuracy. Subsequent trimming operations along the edges 2, 3 on the structural or chassis component 9 can be omitted.
  • FIGS. 4 and 5 show a section of the shell body 13 of a structural or chassis component 9 according to the invention.
  • the shell body 13 is closed by a closing plate 25, which in each case lies on the flat side 26, 27 of the flanges 17 opposite the beads 23, 24. 18 is joined to the shell body 13.
  • E1 and E2 are designated in Figures 4 and 5 welding electrodes.
  • E1 and E3 of the shell body 13 and the striking plate 25 ddling the welding electrodes E1 and E3 of the shell body 13 and the striking plate 25 ddling. Due to the fact that the beads 23, 24 are switched in the direction of the web 14 of the shell body 13, these do not constitute an obstacle in spot welding.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Body Structure For Vehicles (AREA)
EP07000296A 2006-02-08 2007-01-09 Procédé de fabrication d'un élément structurel ou de châssis pour véhicules automobiles Not-in-force EP1818115B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006005964A DE102006005964B3 (de) 2006-02-08 2006-02-08 Verfahren zur Herstellung eines Struktur- oder Fahrwerkbauteils für Kraftfahrzeuge und Struktur- oder Fahrwerkbauteil

Publications (2)

Publication Number Publication Date
EP1818115A1 true EP1818115A1 (fr) 2007-08-15
EP1818115B1 EP1818115B1 (fr) 2009-03-04

Family

ID=37781724

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07000296A Not-in-force EP1818115B1 (fr) 2006-02-08 2007-01-09 Procédé de fabrication d'un élément structurel ou de châssis pour véhicules automobiles

Country Status (5)

Country Link
US (1) US7748743B2 (fr)
EP (1) EP1818115B1 (fr)
AT (1) ATE424266T1 (fr)
DE (2) DE102006005964B3 (fr)
ES (1) ES2322623T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010136683A1 (fr) * 2009-05-27 2010-12-02 Peugeot Citroën Automobiles SA Procede d'emboutissage d'un element en tole, notamment de la caisse d'un vehicule automobile
CN101648245B (zh) * 2008-08-13 2011-04-13 王勇 铝锅的生产方法
CN102019317A (zh) * 2010-09-25 2011-04-20 山东潍坊福田模具有限责任公司 汽车腔形内覆盖件角部防开裂成形方法
WO2021165255A1 (fr) * 2020-02-18 2021-08-26 Thyssenkrupp System Engineering Gmbh Procédé de fabrication de pièces en tôle formées et dispositif correspondant

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007038036B4 (de) * 2007-08-10 2010-11-11 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines rohrförmigen Tragprofils für einen Instrumententräger
DE102010026216A1 (de) * 2010-07-06 2012-01-12 Gm Global Technology Operations Llc (N.D.Ges.D. Staates Delaware) Trägerartiges Bauteil für ein Kraftfahrzeug
DE102010048589A1 (de) * 2010-09-21 2012-03-22 Giw Gesellschaft Für Innovative Werkzeugsysteme Mbh Verfahren und Vorrichtung zum Formen flächiger Werkstücke
DE102011051965A1 (de) 2011-07-20 2013-01-24 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines rohrförmigen Strukturbauteils für ein Kraftfahrzeug und Strukturbauteil
JP5965159B2 (ja) * 2012-02-22 2016-08-03 東プレ株式会社 プレス部品の成形方法
FR2993806B1 (fr) * 2012-07-26 2015-02-13 Saint Jean Ind Procede de fabrication de pieces de structure en alliage leger et pieces ainsi obtenues permettant une optimisation du rapport masse/performances
CN104008219B (zh) * 2013-02-26 2017-06-23 上海通用汽车有限公司 一种焊接变形分析预测方法
DE102016205492A1 (de) 2016-04-04 2017-10-05 Thyssenkrupp Ag Verfahren und Vorrichtung zum Umformen eines Halbzeugs
DE102016005902B3 (de) * 2016-05-13 2017-06-29 Audi Ag Verfahren und Pressenwerkzeug zur Herstellung eines komplexen Blechformteils mit hoher Ziehtiefe
DE102017201674B3 (de) 2017-02-02 2018-03-29 Ford Global Technologies, Llc Verfahren zur Herstellung eines pressgehärteten Bauteils sowie Pressform
PL232341B1 (pl) * 2017-07-21 2019-06-28 Zakl Metalowy Wb Produkcja Handel Uslugi Wieslaw Bozek Maria Bozek Spolka Jawna Sposób wykonania goleni podwozia samolotu
CN113290098B (zh) * 2021-04-15 2023-01-06 佛山市南海圣特亮装饰材料有限公司 一种不锈钢瓦楞板压制成型时进行保护并检测装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991000155A1 (fr) * 1989-06-28 1991-01-10 Kabushiki Kaisha Kanemitsu Procede de production de poulies en toile metallique a gorges en v et produits ainsi obtenus
JPH08128487A (ja) * 1994-11-02 1996-05-21 Nissan Motor Co Ltd エネルギ吸収材およびその製造方法
DE19801341A1 (de) * 1997-01-27 1998-07-30 Kanemitsu Akashi Kk Verfahren zum Formen eines Innenflansches an einem Blechglied mit einem zylindrischen Teil
WO1999007492A1 (fr) * 1997-08-07 1999-02-18 Ssab Hardtech Ab Procede de fabrication d'un produit en tole trempee
EP0919304A1 (fr) * 1997-11-28 1999-06-02 Attrezzeria M.V. di Marin Visino & C. S.n.c. Outil d' emboutissage et de frappe pour la fabrication des boítes métalliques
US6276185B1 (en) * 1999-12-09 2001-08-21 General Motors Corporation Flow lock bead control apparatus and method for drawing high strength steel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
NO173538C (no) * 1991-09-06 1993-12-29 Norsk Hydro As Konstruksjonsbjelke og fremgangsmaate ved produksjon av den samme
DE19642995C1 (de) * 1996-10-18 1998-01-29 Thyssen Industrie Verfahren und Vorrichtung zum Herstellen von biege- oder torsionsbelasteten Trägern mit U- oder V-förmigem Profil
EP1113941B1 (fr) * 1998-09-16 2004-06-16 Cosma International Inc. Barre de renforcement de portiere de vehicule et son procede de fabrication

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991000155A1 (fr) * 1989-06-28 1991-01-10 Kabushiki Kaisha Kanemitsu Procede de production de poulies en toile metallique a gorges en v et produits ainsi obtenus
JPH08128487A (ja) * 1994-11-02 1996-05-21 Nissan Motor Co Ltd エネルギ吸収材およびその製造方法
DE19801341A1 (de) * 1997-01-27 1998-07-30 Kanemitsu Akashi Kk Verfahren zum Formen eines Innenflansches an einem Blechglied mit einem zylindrischen Teil
WO1999007492A1 (fr) * 1997-08-07 1999-02-18 Ssab Hardtech Ab Procede de fabrication d'un produit en tole trempee
EP0919304A1 (fr) * 1997-11-28 1999-06-02 Attrezzeria M.V. di Marin Visino & C. S.n.c. Outil d' emboutissage et de frappe pour la fabrication des boítes métalliques
US6276185B1 (en) * 1999-12-09 2001-08-21 General Motors Corporation Flow lock bead control apparatus and method for drawing high strength steel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101648245B (zh) * 2008-08-13 2011-04-13 王勇 铝锅的生产方法
WO2010136683A1 (fr) * 2009-05-27 2010-12-02 Peugeot Citroën Automobiles SA Procede d'emboutissage d'un element en tole, notamment de la caisse d'un vehicule automobile
FR2945971A1 (fr) * 2009-05-27 2010-12-03 Peugeot Citroen Automobiles Sa Procede d'emboutissage d'un element en tole, notamment de la caisse d'un vehicule automobile
CN102019317A (zh) * 2010-09-25 2011-04-20 山东潍坊福田模具有限责任公司 汽车腔形内覆盖件角部防开裂成形方法
WO2021165255A1 (fr) * 2020-02-18 2021-08-26 Thyssenkrupp System Engineering Gmbh Procédé de fabrication de pièces en tôle formées et dispositif correspondant

Also Published As

Publication number Publication date
DE502007000469D1 (de) 2009-04-16
EP1818115B1 (fr) 2009-03-04
US7748743B2 (en) 2010-07-06
ES2322623T3 (es) 2009-06-23
ATE424266T1 (de) 2009-03-15
US20070180697A1 (en) 2007-08-09
DE102006005964B3 (de) 2007-07-19

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