EP0904865B1 - Procédé et dispositif de formage d'une bande métallique ayant des zones d'épaisseur différentes dans sa largeur - Google Patents

Procédé et dispositif de formage d'une bande métallique ayant des zones d'épaisseur différentes dans sa largeur Download PDF

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Publication number
EP0904865B1
EP0904865B1 EP98118246A EP98118246A EP0904865B1 EP 0904865 B1 EP0904865 B1 EP 0904865B1 EP 98118246 A EP98118246 A EP 98118246A EP 98118246 A EP98118246 A EP 98118246A EP 0904865 B1 EP0904865 B1 EP 0904865B1
Authority
EP
European Patent Office
Prior art keywords
strip
roll
working
areas
axis
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.)
Expired - Lifetime
Application number
EP98118246A
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German (de)
English (en)
Other versions
EP0904865A3 (fr
EP0904865A2 (fr
Inventor
Friedrich Prof. Dr.-Ing. Behr
Klaus Dipl.-Ing. Blümel
Thomas Dr.-Ing. Flehmig
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.)
ThyssenKrupp Steel Europe AG
Original Assignee
ThyssenKrupp Stahl 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 ThyssenKrupp Stahl AG filed Critical ThyssenKrupp Stahl AG
Publication of EP0904865A2 publication Critical patent/EP0904865A2/fr
Publication of EP0904865A3 publication Critical patent/EP0904865A3/fr
Application granted granted Critical
Publication of EP0904865B1 publication Critical patent/EP0904865B1/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
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H8/00—Rolling metal of indefinite length in repetitive shapes specially designed for the manufacture of particular objects, e.g. checkered sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/0805—Flat bars, i.e. having a substantially rectangular cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/227—Surface roughening or texturing

Definitions

  • the invention relates to a method for producing a Metal tape with different thicknesses across its width Areas and a device for carrying out the Process. (see e.g. WO-A-9 415 735).
  • a tape is in its thickness in sections in an deliverable Roll gap of a roll stand reduced. From a such tape with different thickness can then Cut out blanks for the desired components become.
  • the advantages of such a method exist in that the transitions from the smallest strip thickness to greatest strip thickness are steady.
  • the disadvantage is that the transitions are long because of the delivery of the roll gap cannot take place suddenly.
  • Another disadvantage is that for the delivery of the Rolling gap very large forces are required.
  • On Roll stand must be specially designed to Example of a special compensation device for these expansions of the Have roll stand.
  • this Process the usual roller speed of do not use for several 100 meters. That is why such process for the production of tailored blanks not suitable.
  • the object of the invention is a method and an apparatus for producing a Metal tape with different over its width To create thickness ranges and a smooth transition that a low manufacturing cost at one comparatively high production speed allowed.
  • This task is done with regard to the procedure solved that in a band with constant across its width Thickness at least one in the longitudinal direction of the tape extending strip of small thickness molded thereby is that the tape by at least one, of one Front of a work roll and a support roller formed drawing gap is drawn, the work roll with its axis of rotation so inclined to the band plane is employed that when pulling the tape Work roller with its face on the belt a force exercises transversely to the tape longitudinal direction.
  • the device for This method is carried out according to the invention characterized by guide and traction means for the belt and at least one drawing gap, each of which Front of a work roll and a backup roll is formed, the work roll with its axis of rotation is so inclined to the band level that at Pulling the belt through the front of the work roll a force on the belt transverse to the belt longitudinal direction exercises.
  • the dimensioning of the Work roll in itself influence the dimensioning of the thinned strip.
  • the axis of rotation of the Work roll is tilted in different directions.
  • the axes of the work rolls are both around an axis parallel to the longitudinal axis of the belt as well one parallel to the band plane and perpendicular to the Belt longitudinal axis tilted axis.
  • the Force directions Be with neighboring work rolls whose axes of rotation towards each other and in the direction of pull Band tipped, then tensile forces occur between the two Work rolls on.
  • Tractive forces occur between the two Work rolls even if their axes of rotation away from each other and against the direction of the tape be tilted.
  • step between the work rolls Compressive forces when the axes of rotation of the work rolls away from each other and tilted in the direction of pull or towards each other and against the direction of pull.
  • the task is further through a device with the Features of claim 5 solved.
  • the profile is the molded areas including the geometry of the Work roll decisive.
  • the contact angle is the angle of inclination of the molded strip.
  • the device can be driven with work rolls or freely rotatable and then dragged through the belt Work rolls work.
  • the method is applied to warm Steel belt with a temperature of> 600 ° C. Also it will considered advantageous if the procedure is based on recrystallized annealed cold steel strip applied after forming in the forming area is heated above 600 ° C.
  • each device has two pairs each Drawing gap 1,2 between the forming rolls 3,4,5,6.
  • the area of engagement of these work rolls 3,4,5,6 is located on the front side and is from Tapered ring surfaces 3a, 4a, 5a, 6a are formed.
  • the work rolls 3,4,5,6 consist of individual sections in Axis direction of decreasing diameter together, namely in particular from frustoconical sections.
  • the Work rolls 3,4,5,6 are in a frame 7,8 Radial and axial bearings freely rotatable. While she in the exemplary embodiment in FIG.
  • Both embodiments have in common that the Work rolls with their axes of rotation 3b, 4b, 5b, 6b twice are tilted, on the one hand towards each other and to others in the direction of tension of the belt B.
  • FIG. 2 differs of those of Figures 4 and 5 only in that the Work rolls 17, 18 arranged directly next to each other are. You can then roll on each other and thus support each other.
  • Work rolls 17, 18 creates a band, as in Cross section is shown in Figure 3.
  • the one at this Band slightly increased center area M can be in one subsequent rolling process can be leveled. Should for Compensating for the spread temporarily a bead in the band B can be shaped, this can be advantageous Way by means of a slide shoe, not shown here take place, which in the free gusset area between the work rolls 17, 18 is arranged.

Landscapes

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

Claims (12)

  1. Procédé pour fabriquer une bande métallique comportant des zones ayant des épaisseurs différentes sur sa largeur, selon lequel dans une bande (B) possédant une épaisseur constante sur sa largeur on forme au moins un ruban de faible épaisseur, qui s'étend dans la direction longitudinale de la bande par le fait qu'on tire la bande (B) à travers au moins une fente de tirage formée par une face frontale d'un cylindre de travail et d'un cylindre d'appui, caractérisé en ce que le cylindre de travail est disposé avec son axe de rotation incliné par rapport au plan de la bande de telle sorte que lors du tirage de la bande (B), le cylindre de travail applique par sa face frontale, à la bande (B), une force transversale par rapport à la direction longitudinale de la bande.
  2. Procédé selon la revendication 1, caractérisé en ce qu'on forme simultanément un autre ruban parallèlement au ruban d'épaisseur plus faible, par tirage de la bande (B) à travers une seconde fente de tirage qui correspond symétriquement à la première fente de tirage, les forces appliquées à la bande transversalement par rapport à la direction longitudinale de la bande se compensant.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'on utilise comme cylindre d'appui un autre cylindre de travail de sorte qu'une action de déformation est appliquée à la bande (B) à partir des deux faces de la bande (B) avec des cylindres de travail de type identique inclinés par rapport au plan de la bande.
  4. Procédé selon la revendication 1 ou 2, caractérisé en ce que dans le cas de deux fentes de tirage qui provoquent entre elles un élargissement de la bande, une moulure (S) compensant cet élargissement est formée entre les fentes de tirage.
  5. Dispositif pour fabriquer une bande métallique comportant des zones ayant des épaisseurs différentes sur la largeur de la bande pour la mise en oeuvre du procédé selon la revendication 1, comportant des moyens de guidage et de traction pour la bande (B) et au moins une fente de tirage (1, 2), qui est formée respectivement par la face frontale d'un cylindre de travail (3, 6) et par un cylindre d'appui, caractérisé en ce que les cylindres de travail (3, 6) sont disposés avec leurs axes de rotation (3b, 6b) inclinés par rapport au plan de la bande de telle sorte que lors du tirage de la bande (B), le cylindre de travail (3) applique par sa face frontale, à la bande (B), une traction transversalement par rapport à la direction longitudinale de la bande.
  6. Dispositif selon la revendication 5, caractérisé en ce qu'un autre cylindre de travail (4, 5) est prévu en tant que cylindre d'appui de sorte que chaque bande de tirage (1, 2) est formée par respectivement deux cylindres de travail de type identique (3, 4, 5, 6) disposés d'une manière inclinée par rapport au plan de la bande.
  7. Dispositif selon l'une des revendications 5 ou 6, caractérisé en ce que les axes des cylindres de travail sont basculés aussi bien autour d'un axe parallèle à l'axe longitudinal de la bande qu'autour d'un axe parallèle au plan de la bande et perpendiculaire à l'axe longitudinal de la bande.
  8. Dispositif selon la revendication 7, caractérisé en ce que les cylindres de travail (3, 4, 5 , 6) prennent appui les uns sur les autres par leurs enveloppes directement ou indirectement au moyen de bagues de roulement (9, 10, 11, 12, 13).
  9. Dispositif selon la revendication 8, caractérisé en ce que dans le cas d'un appui indirect des cylindres de travail (3, 4, 5, 6) un cylindre de formage (15) servant à former une moulure (S) est prévu entre les fentes de tirage (1, 2), sur un côté de la bande.
  10. Dispositif selon la revendication 8 ou 9, caractérisé en ce que les enveloppes des cylindres de travail (3, 4, 5, 6) sont coniques.
  11. Dispositif selon la revendication 10, caractérisé en ce que pour le soutien indirect des cylindres de travail (3, 4, 5, 6), plusieurs bagues de roulement (9, 10, 11, 12, 13), qui sont disposées en étant superposées concentriquement et peuvent tourner d'une manière indépendante les unes des autres, supportent les cylindres de travail sur leurs enveloppes coniques.
  12. Dispositif selon l'une des revendications 6 à 11, caractérisé en ce que chaque cylindre de travail (3, 4, 5, 6) possède, sur sa face frontale associée à la fente de tirage, une surface annulaire conique (3a, 4a, 5a, 6a) en tant que surface d'attaque.
EP98118246A 1997-09-30 1998-09-25 Procédé et dispositif de formage d'une bande métallique ayant des zones d'épaisseur différentes dans sa largeur Expired - Lifetime EP0904865B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19743093 1997-09-30
DE19743093A DE19743093C1 (de) 1997-09-30 1997-09-30 Verfahren und Vorrichtung zum Herstellen eines Metallbandes mit über seine Breite verschieden dicken Bereichen

Publications (3)

Publication Number Publication Date
EP0904865A2 EP0904865A2 (fr) 1999-03-31
EP0904865A3 EP0904865A3 (fr) 2001-11-14
EP0904865B1 true EP0904865B1 (fr) 2004-02-11

Family

ID=7844076

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98118246A Expired - Lifetime EP0904865B1 (fr) 1997-09-30 1998-09-25 Procédé et dispositif de formage d'une bande métallique ayant des zones d'épaisseur différentes dans sa largeur

Country Status (3)

Country Link
US (1) US5953949A (fr)
EP (1) EP0904865B1 (fr)
DE (2) DE19743093C1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8069407B1 (en) 1998-12-08 2011-11-29 Yodlee.Com, Inc. Method and apparatus for detecting changes in websites and reporting results to web developers for navigation template repair purposes
DE102007047875A1 (de) * 2007-11-28 2009-06-04 Hilti Aktiengesellschaft Profil
WO2010009751A1 (fr) 2008-07-24 2010-01-28 Welser Profile Ag Procédé de fabrication d’un profilé avec au moins un bord de profilé épaissi
DE102009003508B4 (de) * 2009-02-19 2013-01-24 Thyssenkrupp Steel Europe Ag Verfahren zur Herstellung eines pressgehärteten Metallbauteils
BE1019321A5 (nl) 2010-04-29 2012-06-05 Levin Henri Bvba Ets Spanring en vatsamenstel.
FR2973490B1 (fr) * 2011-03-31 2018-05-18 Valeo Systemes Thermiques Tube pour echangeur thermique, echangeur thermique et procede d'obtention correspondants

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT988066B (it) * 1971-08-24 1975-04-10 Nippon Steel Corp Laminatoio acciaio del tipo a tre rulli
FR2394342A1 (fr) * 1977-06-14 1979-01-12 Mi Radiotekh Inst Procede de fabrication d'un ruban metallique et dispositif pour la mise en oeuvre dudit procede
FR2515541B1 (fr) * 1981-10-30 1985-05-10 Griset Ets
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
JPS59202101A (ja) * 1983-05-04 1984-11-15 Nippon Steel Corp フランジを有する形材の圧延方法
GB9300529D0 (en) * 1993-01-13 1993-03-03 Penny & Giles Blackwood Ltd Improvements in rotary forging

Also Published As

Publication number Publication date
EP0904865A3 (fr) 2001-11-14
DE19743093C1 (de) 1998-12-17
DE59810737D1 (de) 2004-03-18
US5953949A (en) 1999-09-21
EP0904865A2 (fr) 1999-03-31

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