EP1847334A1 - Méthode de réduction d'épaisseur d'un materiau roulé - Google Patents

Méthode de réduction d'épaisseur d'un materiau roulé Download PDF

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Publication number
EP1847334A1
EP1847334A1 EP07105761A EP07105761A EP1847334A1 EP 1847334 A1 EP1847334 A1 EP 1847334A1 EP 07105761 A EP07105761 A EP 07105761A EP 07105761 A EP07105761 A EP 07105761A EP 1847334 A1 EP1847334 A1 EP 1847334A1
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EP
European Patent Office
Prior art keywords
thickness
rollers
rolling
rolling stock
roller
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.)
Withdrawn
Application number
EP07105761A
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German (de)
English (en)
Inventor
Armin Herb
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
Publication of EP1847334A1 publication Critical patent/EP1847334A1/fr
Withdrawn legal-status Critical Current

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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
    • 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
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/005—Processes combined with methods covered by groups B21D1/00 - B21D31/00 characterized by the material of the blank or the workpiece
    • B21D35/006—Blanks having varying thickness, e.g. tailored blanks

Definitions

  • the invention relates to a method for reducing the thickness of one-piece rolling, the type mentioned in the preamble of claim 1, and a rolling device for carrying out the method.
  • a profile does not necessarily have to have a constant material thickness or material thickness over its circumference.
  • the material thickness can be partially reduced.
  • a partial reduction in thickness by a single-stage rolling by cold rolling on a strip-shaped rolling stock is not useful because due to the friction across the roller and the stiffness of the flat rolled material, the thickness reduction is converted only in one stretch in the longitudinal direction or rolling direction and a material consolidation. This leads to internal stresses and strong distortions of the strip-shaped rolling stock.
  • a method for forming thickness-profiled one-piece rolling stock in which, in order to form a reduced-thickness region, the starting material is shaped in the width direction by means of rollers which penetrate different depths into the starting material over the width of the rolling stock.
  • a disadvantage of the known solution is that depending on the width of the area reduced in thickness, five or more forming stages must be provided. These must be due be arranged in order of size before a standard profiling or the Abwalzungen must be prepared separately in a separate rolling process in advance. Such measures increase the cost of production, so that the economic benefit is not given despite the reduction in thickness created.
  • the object of the invention is to provide a method for reducing the thickness of one-piece rolling, in which a regional reduction in thickness can be achieved with a small additional effort in a profiling of the rolling stock.
  • the rolling stock in a first step, is provided with at least two bends extending at a distance parallel to the longitudinal extension and in a further step by means of two oppositely arranged rollers each having at least one embossing area arranged obliquely to the axis of rotation of the rollers Area between bends is reduced in thickness.
  • the bent turning areas of the rolling stock are advantageously bent at an angle to the area between the turning areas of 15 ° to 150 °.
  • the displaced material flow without great resistance to the outside without the regional reduction in thickness leads to internal stresses and strong distortions of the rolling stock.
  • the rolling stock is formed band-shaped, which is subsequently formed into a plurality of profile shapes.
  • the strip-shaped rolling stock forms, for example, a sheet-metal strip which is provided with at least one thickness-reduced area by means of the method according to the invention.
  • the thickness reduction takes place on the rolling stock at the same time with the formation of a profile preform, which enables economical production.
  • the formation of the profile preform is hardly hampered by the rolling to reduce the thickness and the resulting lateral flow of the displaced material portion.
  • the thick profiled sheet metal strip is formed into a C-shaped mounting rail.
  • C-shaped mounting rails represent a material-intensive profile, so that by means of the inventive method, the manufacturing costs for such a profile due the reduction in thickness and the resulting savings in material can be significantly reduced.
  • the thickness of the bottom section between openings arranged therein and also the thickness of the side walls can be partially reduced, these thickness reductions being only insignificantly influenced by the static behavior of the C-shaped mounting rail.
  • a rolling device for carrying out the reduction in thickness has two rolls arranged opposite one another, each of which has at least one embossing region arranged obliquely to the axis of rotation of the rolls, wherein the embossing regions are aligned parallel to one another on the rolls arranged opposite one another.
  • each roller has at least two obliquely arranged Abgarge Suitee, whereby two areas of the rolling can be reduced simultaneously.
  • the at least two obliquely arranged Abgarge Schemee a roller are arranged at an angle to each other, which additionally any resulting internal stresses or occurring distortions of the rolling stock can be prevented.
  • the rollers are profiling rollers for creating a profile preform.
  • the rolling stock can be formed into a profile preform, which is subsequently shaped into the desired profile.
  • the formation of the profile preform is hardly hampered by the rolling to reduce the thickness and the resulting lateral flow of the displaced material portion.
  • FIGS. 1 and 2 schematically show the method and a first rolling device 11.
  • the rolling device 11 has a first roller 12 and an oppositely disposed second roller 16.
  • the first roller 12 has an obliquely arranged to the rotational axis 13 Abgarge Scheme 14.
  • the second roller 16 has an obliquely arranged to the rotation axis 17 Abgarge Scheme 18.
  • the Abgarge Schemee 14 and 18 are aligned parallel to each other and include with their respective axes of rotation 13 and 17, an angle A and B of about 45 °.
  • the rolling stock 21 is strip-shaped and has a thickness D.
  • the rolling stock 21 is provided before the thickness reduction with two, at a distance from each other parallel to the longitudinal extent extending bends 25 for forming two turning areas 22.
  • the turning areas 22 were bent at an angle of 80 ° to the region 23 lying between the bends 25.
  • the area 23 between the turning areas 22 is reduced to the thickness E. Due to the different peripheral speeds on the rollers 12 and 16 in the region of their Abgarge Schemee 14 and 18 results in a longitudinal slip, which eliminates the frictional resistance of the rollers 12 and 16 transversely to the strip-shaped rolling stock 21 and the reduction of the thickness D by broadening of the rolling material 21 in the direction the arrows 24 compensates. By the previously bent not to be reduced in the thickness D turning areas 22 of the rolling stock 21, the displaced material can flow without greater resistance to the outside.
  • FIGS. 4 and 5 schematically show a method for producing a C-shaped mounting rail 40.
  • the rolling stock 41 is formed band-shaped and provided with a plurality of bends 44.
  • the edge regions 45 were bent before the thickness reduction.
  • the rolling device 31 has a first roller 32 and an oppositely disposed second roller 36.
  • the first roller 32 has two obliquely arranged to the rotational axis 33 Abgarge Schemee 34 and 35, which are arranged at an obtuse angle to each other.
  • the second roller 36 also has two obliquely arranged to the rotation axis 37 Abgarge Scheme 38, which are arranged at an obtuse angle to each other.
  • the Abgarge Schemee 34 and 38, as well as the Abgarge Schemee 35 and 39 are each aligned parallel to each other.
  • the rollers 32 and 36 are a part of profiling rollers for creating a profile preform, which is then converted to the C-shaped mounting rail 40.
  • the bead 48 is flat-rolled in the region 46 of the sheet-metal strip 41 with a rolling roller 51 and a counter-roller 52, wherein the wall portions 49 of the mounting rail 40 are aligned simultaneously perpendicular to the bottom portion 47.
  • the rolling roller 51 may be formed as a punch and the counter roller 52 as a counter punch, wherein the punch for flattening the bead 48 is moved in the direction of the arrow 53.
  • the counter punch or the stamp and the counter punch can be moved simultaneously to flattening the bead 48.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
EP07105761A 2006-04-18 2007-04-05 Méthode de réduction d'épaisseur d'un materiau roulé Withdrawn EP1847334A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006000181A DE102006000181A1 (de) 2006-04-18 2006-04-18 Verfahren zur Dickenreduzierung von einstückigem Walzgut

Publications (1)

Publication Number Publication Date
EP1847334A1 true EP1847334A1 (fr) 2007-10-24

Family

ID=38222472

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07105761A Withdrawn EP1847334A1 (fr) 2006-04-18 2007-04-05 Méthode de réduction d'épaisseur d'un materiau roulé

Country Status (2)

Country Link
EP (1) EP1847334A1 (fr)
DE (1) DE102006000181A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009052906A1 (fr) * 2007-10-26 2009-04-30 Welser Profile Ag Procédé de fabrication d'un profilé à partir d'un feuillard métallique plat
EP2085163A1 (fr) * 2008-02-01 2009-08-05 HILTI Aktiengesellschaft Procédé de profilage à froid pour la production d'un profilé
EP2208555A1 (fr) * 2009-09-25 2010-07-21 DREISTERN GmbH & Co.KG Procédé de laminage et dispositif de laminage pour la fabrication d'une bande de métal ayant une épaisseur variant en largeur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011009891A1 (de) * 2011-01-31 2012-08-02 Benteler Automobiltechnik Gmbh Verfahren zum Herstellen von Blechbauteilen sowie Vorrichtung zur Durchführung des Verfahrens

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2352675A (en) * 1941-04-21 1944-07-04 Carl M Yoder Mechanism for shaping sheet metal
DE1452724A1 (de) * 1964-09-29 1969-05-14 Kanegafuchi Steel Co Ltd Walzmaschine mit schraegen Walzen
US3475937A (en) * 1966-08-01 1969-11-04 James R Lawler Roll forming apparatus
GB2017556A (en) * 1978-03-30 1979-10-10 Wuppermann Gmbh Theodor Making metal sections
WO1987005651A1 (fr) * 1986-03-12 1987-09-24 Donn Incorporated Structures formees par laminage a froid, procede et appareil de production desdites structures
US4876837A (en) * 1988-08-22 1989-10-31 Usg Interiors, Inc. Corner bead structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2352675A (en) * 1941-04-21 1944-07-04 Carl M Yoder Mechanism for shaping sheet metal
DE1452724A1 (de) * 1964-09-29 1969-05-14 Kanegafuchi Steel Co Ltd Walzmaschine mit schraegen Walzen
US3475937A (en) * 1966-08-01 1969-11-04 James R Lawler Roll forming apparatus
GB2017556A (en) * 1978-03-30 1979-10-10 Wuppermann Gmbh Theodor Making metal sections
WO1987005651A1 (fr) * 1986-03-12 1987-09-24 Donn Incorporated Structures formees par laminage a froid, procede et appareil de production desdites structures
US4876837A (en) * 1988-08-22 1989-10-31 Usg Interiors, Inc. Corner bead structure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009052906A1 (fr) * 2007-10-26 2009-04-30 Welser Profile Ag Procédé de fabrication d'un profilé à partir d'un feuillard métallique plat
US8646303B2 (en) 2007-10-26 2014-02-11 Welser Profile Ag Process for producing a profile from a flat metal strip
EP2085163A1 (fr) * 2008-02-01 2009-08-05 HILTI Aktiengesellschaft Procédé de profilage à froid pour la production d'un profilé
US8485012B2 (en) 2008-02-01 2013-07-16 Hilti Aktiengesellschaft Cold rolling method for manufacturing a profile
EP2208555A1 (fr) * 2009-09-25 2010-07-21 DREISTERN GmbH & Co.KG Procédé de laminage et dispositif de laminage pour la fabrication d'une bande de métal ayant une épaisseur variant en largeur

Also Published As

Publication number Publication date
DE102006000181A1 (de) 2007-10-25

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