WO2005115652A1 - Procede de fabrication en parallele au cours du profilage par laminage - Google Patents

Procede de fabrication en parallele au cours du profilage par laminage Download PDF

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Publication number
WO2005115652A1
WO2005115652A1 PCT/EP2005/001768 EP2005001768W WO2005115652A1 WO 2005115652 A1 WO2005115652 A1 WO 2005115652A1 EP 2005001768 W EP2005001768 W EP 2005001768W WO 2005115652 A1 WO2005115652 A1 WO 2005115652A1
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WO
WIPO (PCT)
Prior art keywords
roll
profile
rolled
profiles
metal
Prior art date
Application number
PCT/EP2005/001768
Other languages
German (de)
English (en)
Inventor
Karl-Heinz FÜLLER
Tilmann Haug
Albrecht Krüger-Eppstein
Gerhard Miller
Original Assignee
Daimlerchrysler 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 Daimlerchrysler Ag filed Critical Daimlerchrysler Ag
Publication of WO2005115652A1 publication Critical patent/WO2005115652A1/fr

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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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/08—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles making use of forming-rollers

Definitions

  • the invention relates to a method for the production of metal profiles, which are suitable for vehicle support structures, by roll profiling of sheet metal by means of a roll profiling system, with forming taking place before or during roll profiling, a separating device being provided before, in or after the roll profiling system, which feeds the
  • the strip sheet is divided into at least two strips of the same width before the roll profiling or only after the roll profiling into at least two metal profiles, as a result of which at least two identical or symmetrical metal profiles are produced in parallel.
  • DE 198 07 830 AI discloses a method for producing body and chassis parts for vehicles from slowly welded aluminum tubes or open rolled profiles.
  • a strip plate often also referred to as a coil, is first formed in a continuous process by means of rolling, selectively over its width, to the material thickness required for the required wall thickness.
  • the material is then formed in a roll profiling system by means of forming rolls into a closed tubular profile or into an open profile. In the case of a tubular profile, the side edges of the original flat semi-finished product are welded together lengthways and then the weld seam is deburred.
  • the coil can also be reshaped locally to different wall thicknesses over its length using upstream rollers.
  • different wall thicknesses can be achieved not only over the circumference of the profile, but also over the length of the profile, that is to say in the axial direction.
  • the wall thicknesses can also be adapted to different local loads over the length of the pipe or open profile. Furthermore, further material and weight savings are possible.
  • a method for producing profile parts with a profile cross section that varies over their length is known from the publication DE 197 49 902 AI.
  • the strip metal becomes Generation of a profile bar which is variable in its cross-section along its longitudinal course before the roll profiling or during the roll profiling is trimmed along the longitudinal edge edges in accordance with the desired cross-sectional change of the profile bar over its length.
  • an upstream or integrated cutting device is provided for trimming the strip metal supplied at the longitudinal edge.
  • Hinge plates are available in different compositions, surface treatments, thicknesses and widths. Nevertheless, it is common for strip sheets to be offered in standard sizes, especially in standard widths.
  • the width of the strip that is required for a rolled section generally does not correspond to the available standard sizes.
  • the wide strip plates are more economical in terms of manufacture, transport and storage than several strip plates of smaller width.
  • the reduction in the number of roll profiling systems means a reduction in the system costs for the production of a specific profile. This also reduces set-up and adjustment effort, particularly when changing over to the production of a different profile, to fewer plants with fewer stands.
  • the object is achieved according to the invention by a method for producing metal profiles which are suitable for vehicle support structures, by roll profiling a strip plate by means of a roll profiling system, with forming taking place during roll profiling, with the characterizing features of claim 1.
  • the method according to the invention is characterized in that a separating device is provided before, in or after the roll profiling system, which either divides the supplied strip sheet into at least two strips of the same width before profiling or the at least two rolled profiles formed by the supplied sheet after the roll profiling system be divided so that at least two rolled sections are produced in parallel.
  • the rolled profiles are identical or symmetrical to each other.
  • the metal strip which according to the invention has at least twice the width required for the respective metal profile, is fed to the roll profiling system.
  • a cutting device is attached which separates the metal strip lengthwise into at least two strips of the same width.
  • This cutting device can be formed, for example, by rotating or fixed cutting knives, laser emitters or water emitters.
  • the individual profiles are usually of identical geometry, but can also be have different geometries. In particular, this means symmetrical, for example mirror-symmetrical, geometry variants of the individual profiles.
  • a typical use for mirror-symmetrical geometry variants can be found in motor vehicle construction.
  • otherwise identical profiles can be installed on the two mirror-opposite halves of a motor vehicle frame. These include door sills, long beams, A-, B- or C-pillars which are arranged in a left and a right half of the vehicle.
  • the corresponding rolling and forming tools are typically arranged side by side in parallel.
  • the corresponding tools of the individual parallel rolling mills of the same roll profiling system can also be arranged offset to one another.
  • the individual rolling and forming stations on adjacent streets can also be nested. It is important here that each of the strip strips has gone through the same processing steps after leaving the roll-forming system, so that the same metal profile parts are produced.
  • the supplied strip plate is preferably divided into 2, 3, 4, 5 or 6 strips of the same width and the same number of parallel rolling mills is provided within a rolling profile system.
  • the cutting devices are designed in such a way that the width of the at least two strip strips is varied over their length by separating material at the longitudinal edge edges can. Typically, this is achieved by arranging a plurality of cutting knives, some of which effect the separation of the original wide band plate and some of which only cause separation along one or both longitudinal edge edges of the band plate strip.
  • material can be separated along locally limited areas of the longitudinal edge by laser or water jet cutting. This method ensures that the cross-section of the at least two rolled profiles is changed over their profile length in the roll profiling system.
  • the rolled profiles are geometrically changed in the roll profiling system by means of forming.
  • forming beading, deep drawing and / or stretch drawing is preferred.
  • metal profile parts with a variable cross-section are also available.
  • the shaping processes also make it possible in a simple manner to produce symmetrical profiles with respect to the outer shape, but these differ in the position, size or number of cutouts, depressions or holes.
  • door sills, long girders, A-, B- or C-pillars can be manufactured in this way, which are arranged in a left and a right half of the vehicle can.
  • the forming tools are permanently or variably integrated into the process line of the roll forming system as forming stations.
  • the roll profiling can be carried out continuously, with the forming tools following the direction of movement, or also discontinuously, with the further movement of the respective rolling train being stopped for the forming process.
  • several different forming stations can be provided along the rolling mill.
  • the parallel arrangement according to the invention of several metal strip strips has proven to be particularly advantageous.
  • the same forming tool is used for the forming step on two adjacent rolling mills.
  • the adjacent rolling mills are alternately stopped and moved further, so that the same forming tool can be pivoted back and forth between the two adjacent rolling mills, or can alternately serve both rolling mills.
  • components with changed final dimensions can be produced by stretch drawing, which have complex cross-sectional changes in desired component areas and additionally reduced wall thicknesses over a constant profile cross section.
  • stretch drawing which have complex cross-sectional changes in desired component areas and additionally reduced wall thicknesses over a constant profile cross section.
  • the combination of stretch drawing with deep drawing allows large-area, asymmetrical components to be produced.
  • the arrangement of beads are used to generate a strength or stiffness distribution tailored to the requirement profile of the metal profile. For example, profile components with a reduced sheet thickness in zones with lower loads tion and with a possibly slightly increased sheet thickness in zones with high loads.
  • roll profiles with complex profile cross sections are hereby profiled, such as. B. rolled profiles with tapers or rolled profiles in which, for example, the entire component flank shifts, the angle of the component flank being retained. This enables the integrated production of very stable structural and safety components, which are particularly important for the automotive industry.
  • the metallic materials that are particularly suitable for the production of profile components for the automotive industry include, for example, TRIP steels, TWIP steels, which are nevertheless highly deformable with increased strength, or BTR steels.
  • Other materials are thin but very hard sheet metal alloys, such as Usibor steel, BOR steel, BORON steel or ZSTE steel
  • the cutting In contrast to the first version, where the supplied strip is cut into at least two strips of the same width before profiling, the cutting must be done in this Design after the roll profiling on the finished metal profiles connected along the longitudinal axis.
  • the at least two metal profiles which are attached to one another are cut up after the roll profiling system.
  • Corresponding separating devices are provided for this in the connection of the roll profiling system.
  • This variant is particularly suitable for simple profiles with little or no forming process during profiling.
  • the rolled profile is thinned out at the intended dividing line of the at least two connected metal profiles. This ensures simple separation, which makes the separation device simpler.
  • a further embodiment of the method according to the invention provides that the cut sheet metal edges are coated with a corrosion protection agent in the roll profiling system or immediately thereafter.
  • a heat treatment of the profile to increase the strength can also be carried out in the roll profiling system.
  • a device for remelting defined surface areas can be integrated in the process line.
  • a single remelting device in turn supplies several parallel rolling mills or strips. This is through back and forth Swiveling, for example a burner or laser beam, is particularly easy to implement if the remelt does not extend over the entire length of the metal profile.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)

Abstract

La présente invention concerne un procédé pour réaliser des profilés métalliques qui conviennent pour des structures porteuses de véhicules, par profilage par laminage de tôle en bande au moyen d'une installation de profilage par laminage. Selon l'invention, une déformation a lieu avant ou pendant le profilage par laminage, et un dispositif de séparation se trouve dans l'installation de profilage par laminage, ou en aval de celle-ci, ledit dispositif de séparation subdivisant la tôle en bande qui arrive avant le profilage par laminage, en au moins deux bandes de même largeur, ou seulement après profilage par laminage, en au moins deux profilés métalliques, ce qui permet la production en parallèle d'au moins deux profilés métalliques identiques ou symétriques l'un par rapport à l'autre.
PCT/EP2005/001768 2004-05-18 2005-02-21 Procede de fabrication en parallele au cours du profilage par laminage WO2005115652A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004025044.8 2004-05-18
DE200410025044 DE102004025044B3 (de) 2004-05-18 2004-05-18 Paralleles Fertigungsverfahren beim Walzprofilieren

Publications (1)

Publication Number Publication Date
WO2005115652A1 true WO2005115652A1 (fr) 2005-12-08

Family

ID=34960844

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/001768 WO2005115652A1 (fr) 2004-05-18 2005-02-21 Procede de fabrication en parallele au cours du profilage par laminage

Country Status (2)

Country Link
DE (1) DE102004025044B3 (fr)
WO (1) WO2005115652A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008040034B4 (de) 2008-06-30 2017-05-11 Volkswagen Ag Verfahren und Vorrichtung zur Herstellung eines Blechbauteils
DE102014013541A1 (de) 2014-09-12 2015-04-02 Daimler Ag Verfahren und Vorrichtung zur Herstellung von walzprofilierten Profilen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2493415A (en) * 1947-07-18 1950-01-03 John E Navin Method for forming sheet metal gutters
US3393547A (en) * 1966-07-22 1968-07-23 Yoder Co Metal forming method and apparatus
FR2035872A1 (en) * 1969-03-25 1970-12-24 Bandstahlkombinat Veb Cold forming metal ribbon
US3589159A (en) * 1969-03-14 1971-06-29 Dwaine E Warstler Punch for gutter forming machine
GB1441746A (en) * 1972-10-10 1976-07-07 Ward Bros Sherburn Ltd Cold forming
US4969346A (en) * 1986-03-12 1990-11-13 Usg Interiors, Inc. Apparatus for producing cold roll-formed structures

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19749902B4 (de) * 1997-11-12 2009-08-13 Schade Gmbh & Co. Kg Verfahren zur Herstellung eines Profilstabes aus Metall
DE10120063C2 (de) * 2001-04-24 2003-03-27 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung von metallischen Profilbauteilen für Kraftfahrzeuge

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2493415A (en) * 1947-07-18 1950-01-03 John E Navin Method for forming sheet metal gutters
US3393547A (en) * 1966-07-22 1968-07-23 Yoder Co Metal forming method and apparatus
US3589159A (en) * 1969-03-14 1971-06-29 Dwaine E Warstler Punch for gutter forming machine
FR2035872A1 (en) * 1969-03-25 1970-12-24 Bandstahlkombinat Veb Cold forming metal ribbon
GB1441746A (en) * 1972-10-10 1976-07-07 Ward Bros Sherburn Ltd Cold forming
US4969346A (en) * 1986-03-12 1990-11-13 Usg Interiors, Inc. Apparatus for producing cold roll-formed structures

Also Published As

Publication number Publication date
DE102004025044B3 (de) 2005-10-27

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