EP2025420B1 - Verfahren zur Dickenreduktion von einstückigem Walzgut - Google Patents

Verfahren zur Dickenreduktion von einstückigem Walzgut Download PDF

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Publication number
EP2025420B1
EP2025420B1 EP07121819A EP07121819A EP2025420B1 EP 2025420 B1 EP2025420 B1 EP 2025420B1 EP 07121819 A EP07121819 A EP 07121819A EP 07121819 A EP07121819 A EP 07121819A EP 2025420 B1 EP2025420 B1 EP 2025420B1
Authority
EP
European Patent Office
Prior art keywords
thickness
rolling stock
reduced
rolling
stock
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.)
Active
Application number
EP07121819A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2025420A1 (de
Inventor
Fritz Hermann
Christoph Wiedner
Frank Bertram
Frank Jackel
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.)
Hilti AG
Original Assignee
Hilti 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 Hilti AG filed Critical Hilti AG
Priority to PL07121819T priority Critical patent/PL2025420T3/pl
Priority to US12/228,792 priority patent/US8047041B2/en
Publication of EP2025420A1 publication Critical patent/EP2025420A1/de
Application granted granted Critical
Publication of EP2025420B1 publication Critical patent/EP2025420B1/de
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Classifications

    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2205/00—Particular shaped rolled products
    • B21B2205/02—Tailored blanks

Definitions

  • the invention relates to a method for reducing the thickness of one-piece rolling stock by longitudinal rolling, in which the rolling stock is deformed by laterally offset forming regions of successively following rollers in the feed direction in the width direction.
  • a profile does not necessarily have to have a constant thickness or material thickness over its circumference.
  • the thickness can be partially reduced and thus material can be saved.
  • a partial reduction in thickness by a single-stage rolling in cold rolling process on a strip-shaped rolling is not useful because due to the friction across the roller and the stiffness of the flat rolled material reduction is converted only in an extension in the longitudinal direction or in the feed direction and a material consolidation. This leads to internal stresses and strong distortions of the rolling stock.
  • a disadvantage of the known solution is that the adjustment or the control of the different depth penetrating forming areas is complex. In addition, occur in the sections reduced in thickness and each extending transversely to the feed direction Thickness transitions between the reduced in thickness and the non-reduced in thickness sections unevenness, which are often undesirable. In addition, a large number of forming steps, also called stitches, are needed to produce sections with a constantly reduced thickness.
  • the object of the invention is to provide a method for reducing the thickness of one-piece rolling, which is easily adjustable or controllable and in which the number of stitches for creating a constant depression in the rolling stock is low.
  • the forming areas of the rollers penetrate equally deep into the rolling stock.
  • the reduced thickness section of the rolling stock produced by the method according to the invention has an advantageous surface quality.
  • the forming area of a roll widens the rolling stock in each case towards a side edge.
  • an edge of the sections of a plurality of consecutive or sequentially following rolls lying in relation to the side edge of the rolling stock is aligned and the spacing of the forming regions increases in a direction transverse to that inward edge Feed direction or transverse to the rolling direction of roller to roller.
  • two forming regions are provided on one roll, one of the forming regions widening the rolling stock to one side edge and the other of the forming regions widening the rolling stock to an opposite side edge.
  • two sections running essentially parallel to one another and reduced in thickness are formed in the rolling stock.
  • the forming area of a roll broadens the rolling stock toward both side edges, with the forming in the width direction towards both side edges occurring simultaneously from a forming area of a roll.
  • a counter bearing can be provided a table which spans a plane parallel to the roll axis extending plane, or a counter-roller whose roller axis and lateral surface is parallel to the roll axis.
  • opposing rolls are provided with forming areas, between which the rolling stock is reduced in a section of two sides in some areas in thickness.
  • the reduced-thickness rolling stock is formed in a further process step by longitudinal rolling in a longitudinal profile.
  • the at least one section reduced in thickness is advantageously oriented in such a way that it comes to lie in a statically advantageous area of the manufactured profile.
  • the at least partially reduced in thickness rolling stock is advantageously fed directly to a profile rolling plant, which can be dispensed with a coiling of the reduced-thickness rolling stock before forming the longitudinal profile.
  • the reduced-thickness rolling stock is formed into a cross-sectionally C-shaped longitudinal profile, wherein the at least one reduced-thickness portion advantageously comes to rest in one of the side walls whose bent, free ends form the mounting opening running in the longitudinal direction.
  • the reduced-thickness rolling stock has two portions reduced in thickness, which advantageously come to lie in the C-shaped longitudinal profile in the opposite side walls.
  • the reduced-thickness rolling stock is formed into a longitudinal profile which is U-shaped in cross-section, wherein the at least one section reduced in thickness advantageously comes to lie in one of the side walls.
  • the reduced-thickness rolling stock is provided with openings, which serve for example, the implementation of fasteners for the finished profile and also reduce the weight of the finished profile.
  • the breakthroughs are advantageously formed after the thickness profiling of the rolling stock and before forming a profile in the rolling stock.
  • the reduced-thickness rolling stock is provided in the reduced-thickness section with openings.
  • the reduced-thickness rolling stock is provided with characteristics which stiffen a fabricated profile as well as arranged and designed to significantly increase the carrying capacity of the manufactured profile.
  • the characteristics are advantageously formed after the thickness profiling of the rolling stock and before forming into a profile in the rolling stock.
  • the reduced-thickness rolling stock is provided in the reduced-thickness portion with characteristics, which ensures an advantageous carrying capacity of the manufactured profile, despite the reduced in thickness sections.
  • the in the FIG. 1 shown rolling mill 11 comprises a feed unit 12 in the form of a reel with a one-piece rolling stock 14, such as a strip material, a Popeprofilierwalzvoriques 21, a straightening device 31, a processing device 41, a roll forming 51 and a cutting device 61.
  • a feed unit 12 in the form of a reel with a one-piece rolling stock 14, such as a strip material, a Popeprofilierwalzvoriques 21, a straightening device 31, a processing device 41, a roll forming 51 and a cutting device 61.
  • the width profiling rolling device 21, which in the FIG. 2 is shown schematically, has for area by area reduction of the thickness of the one-piece rolling stock 14 by longitudinal rolling in a cold rolling several successive in the feed direction W following rollers 22 to 25, each having two laterally offset forming regions 26 to 29, wherein all forming regions 26 to 29 of Rollers 22 to 25 equally deep penetrate into the rolling stock 14 for forming the rolling stock 14 in the width direction.
  • Forming regions 26 to 29 the widening of the rolling stock 14 in a plane parallel to the roll axis of the rollers 22 to 25.
  • the two forming regions 26 to 29 of a roller 22 to 25 widen the rolling stock 14 each to a side edge 17 and 18 out.
  • an edge of the rolls 22 to 25 carrying the forming regions 26 to 29 with respect to the side edge 17 or 18 of the rolling stock 19 is aligned and the spacing of the forming regions 26 to 29 decreases with respect to this inner edge in a direction transverse to the feed direction W from roller 22 to 24 to roller 23 to 25.
  • the width profiling rolling apparatus 21 shown here, two sections 15, which are spaced apart from one another and are spaced apart from the side edges 17 and 18 of the rolling stock 14, are formed in the rolling stock 14. Furthermore, the width profiling rolling device 21 has a cylindrical smoothing roller 30 for rolling off a possibly existing bead in the region of the transitions between the thickness-reduced portions 15 and the non-reduced thickness portions 16 of the rolling stock.
  • the processing device 41 has a perforation device 42 for producing apertures 76 in the rolling stock 19, which is reduced in thickness in some regions, and an embossing device for producing embossments 77 on the rolling stock 19 which is reduced in thickness in the region.
  • the profiling rolling device 51 has a plurality of profiling rollers, which transform the substantially flat, reduced-thickness rolling stock 19 in a further method step by longitudinal rolling in a longitudinal profile.
  • the rolled stock 19, which is reduced in thickness, is advantageously fed to the profiling rolling apparatus 51 in such a way that the portions 15 reduced in thickness come to rest in the regions of the finished longitudinal profile which are subjected to a statically reduced load.
  • the reduced-thickness rolling stock 19 is formed into a cross-sectionally C-shaped longitudinal profile 71.
  • the rolling stock 14 with the initial width A is introduced into the width profiling rolling device 21 and brought thereby to the processing width B.
  • the reduced-thickness rolling stock 19 is directed in the straightening device 31 to correct any undesired deformations or distortions.
  • the partially reduced in thickness rolling stock 19 is provided with openings 76 and forms 77, wherein the reduced-thickness rolling stock 19 in the thickness reduced portions 15 is provided with characteristics 77.
  • the reduced-thickness and processed rolling stock 19 in the profiling rolling 51 is formed by a further process step in a longitudinal profile and then cut to length by means of the cutting device 61.
  • FIG. 4 is shown as an example for a longitudinal profile produced by the method according to the invention, a longitudinal profile 71 which is C-shaped in cross-section, wherein the sections 15 reduced in thickness are provided in the region of the side walls 72.
  • the reduced in thickness portions 15 are provided for stiffening with characteristics 77.
  • an opening 76 In the connecting portion 73 between the side walls 72 is an opening 76, for example, for carrying out a fastening means not shown here for fixing the longitudinal profile 71 z. B. provided on a substrate.
  • FIG. 3 a variant of a Popewalzvorraum 81 is shown, in which the successive rollers 82 to 84 each laterally offset forming regions 86 to 88 have.
  • the forming areas 86 to 88 of the rollers 82 to 84 penetrate equally deep into the rolling stock 14 for forming the rolling stock 14 in the width direction, wherein the rolling stock 14 is widened by each forming area 86, 87 and 88 respectively to both side edges 17 and 18 out ,

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
EP07121819A 2007-08-16 2007-11-28 Verfahren zur Dickenreduktion von einstückigem Walzgut Active EP2025420B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL07121819T PL2025420T3 (pl) 2007-08-16 2007-11-28 Sposób zmniejszania grubości jednoczęściowego wyrobu walcowanego
US12/228,792 US8047041B2 (en) 2007-08-16 2008-08-15 Method of reducing thickness of unbroken rolling stock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007038554 2007-08-16

Publications (2)

Publication Number Publication Date
EP2025420A1 EP2025420A1 (de) 2009-02-18
EP2025420B1 true EP2025420B1 (de) 2012-04-11

Family

ID=39145111

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07121819A Active EP2025420B1 (de) 2007-08-16 2007-11-28 Verfahren zur Dickenreduktion von einstückigem Walzgut

Country Status (7)

Country Link
US (1) US8047041B2 (da)
EP (1) EP2025420B1 (da)
AT (1) ATE552925T1 (da)
CA (1) CA2638776C (da)
DK (1) DK2025420T3 (da)
ES (1) ES2383338T3 (da)
PL (1) PL2025420T3 (da)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007051354B4 (de) * 2007-10-26 2009-11-19 Welser Profile Ag Verfahren zum Herstellen eines Profils aus flachem Metallband
DE102011005401A1 (de) * 2011-03-11 2012-09-13 Hilti Aktiengesellschaft Rollenumformeinrichtung zum Umformen eines bandförmigen Metallmaterials
DE102011001320A1 (de) * 2011-03-16 2012-10-04 Muhr Und Bender Kg Verfahren zur Herstellung von Blechplatinen aus Bandmaterial
DE102011079095A1 (de) 2011-07-13 2013-01-17 Hilti Aktiengesellschaft Verfahren zum Herstellen eines Profils aus einem Blechband

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2813636C3 (de) * 1978-03-30 1980-10-30 Theodor Wuppermann Gmbh, 5090 Leverkusen Verfahren und Einrichtung zur Herstellung von Profilen aus Metall, vornehmlich von Stahlprofilen
US4357818A (en) * 1979-11-02 1982-11-09 Bicc Limited Method of shaping metal
JPH10180390A (ja) * 1996-12-27 1998-07-07 Hitachi Cable Ltd 異形断面条の製造方法
JPH11740A (ja) * 1997-06-11 1999-01-06 Hitachi Cable Ltd 異形断面条の製造方法
DE19831882A1 (de) 1998-07-17 2000-01-20 Schloemann Siemag Ag Verfahren und Walzanlage zum Herstellen eines beliebigen Dickenprofils über die Breite eines bandförmigen Walzgutes
DE10113610C2 (de) * 2001-03-20 2003-04-17 Reiner Kopp Verfahren und Walzvorrichtung zur Ausbildung von dickenprofiliertem einstückigem Walzgut

Also Published As

Publication number Publication date
US20090095045A1 (en) 2009-04-16
US8047041B2 (en) 2011-11-01
ES2383338T3 (es) 2012-06-20
CA2638776C (en) 2015-02-03
ATE552925T1 (de) 2012-04-15
PL2025420T3 (pl) 2012-09-28
DK2025420T3 (da) 2012-06-25
EP2025420A1 (de) 2009-02-18
CA2638776A1 (en) 2009-02-16

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