EP2548666A1 - Procédé de fabrication dýun profilé à partir d'une bande de tôle - Google Patents

Procédé de fabrication dýun profilé à partir d'une bande de tôle Download PDF

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Publication number
EP2548666A1
EP2548666A1 EP12171604A EP12171604A EP2548666A1 EP 2548666 A1 EP2548666 A1 EP 2548666A1 EP 12171604 A EP12171604 A EP 12171604A EP 12171604 A EP12171604 A EP 12171604A EP 2548666 A1 EP2548666 A1 EP 2548666A1
Authority
EP
European Patent Office
Prior art keywords
section
metal strip
sheet
stage
flank
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
EP12171604A
Other languages
German (de)
English (en)
Other versions
EP2548666B1 (fr
Inventor
Guenter Domani
Christoph Wiedner
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 EP2548666A1 publication Critical patent/EP2548666A1/fr
Application granted granted Critical
Publication of EP2548666B1 publication Critical patent/EP2548666B1/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
    • 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
    • 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
    • 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
    • B21B1/098—Z-sections
    • 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
    • B21B1/095—U-or channel sections
    • 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
    • B21B1/224—Edge rolling of flat products

Definitions

  • the invention relates to a method for producing a profile from a sheet metal strip.
  • Roll forming methods are known in which rail profiles are produced from a sheet-metal strip by bending operations. Such a method is for example from the EP0736345A1 out. Furthermore, it is, for example, from the EP2025420A1 and the EP2085163A1 Known to locally reduce the wall thickness of the metal as part of the Walzprofiliervons. In this way, it can be taken into account that, for static reasons, a profile often does not necessarily have to have a wall thickness that is constant over the profile circumference. In particular, in the less loaded sections of the profile, the wall thickness can be partially reduced and thus material can be saved.
  • the object of the invention is to provide a method for producing a profile from a sheet metal strip, which allows for particularly high efficiency and reliability, the production of particularly varied designed profiles.
  • a method for producing a profile from a sheet-metal strip in which the sheet-metal strip is bent at least twice in a first stage, so that, seen in cross section of the sheet-metal strip, a central portion and two flank portions are formed, which from two opposite end portions of the central portion protrude at an angle, and is compressed in a subsequent to the first stage second stage of the central portion by means of two complementary roller assemblies which engage the two opposite end portions of the central portion, while the sheet metal strip is locally thickened.
  • a basic idea of the invention can be seen in bending the sheet-metal strip at least twice and compressing the resulting middle section at its two ends in such a way that local thickening occurs in the region of the middle section.
  • profile cross-sectional areas with increased wall thickness are therefore not obtained by the fact that adjacent areas are thinned, but they are obtained by targeted thickening.
  • the double bending makes it possible to initiate the compression forces particularly easily and reliably in the middle section, since the faces of the opposite end portions of the central portion are freely accessible by the double bending. Since the bends can be introduced at any point in the cross section, according to the invention, the thickenings can be positioned largely freely in cross section.
  • one or more thickenings can be generated at almost any point in the sheet metal strip. It is also economically possible to produce a cross section in which only small areas have a large wall thickness and large areas have a small wall thickness.
  • the inventive method is a cold rolling process, which can be carried out in particular on a cold rolling mill.
  • at least one of the roller assemblies has at least one recess, into which the material in Upsetting process flows in the second stage and thereby generates at least one local thickening.
  • the upsetting takes place in the plane of the middle section, that is to say the upsetting forces act at least approximately parallel to the flat sides of the middle section.
  • the bending takes place about bending axes which run at least approximately parallel to the longitudinal axis of the sheet-metal strip.
  • the at least two fold can be done simultaneously or sequentially.
  • the first stage may also comprise several individual stages.
  • Each roller assembly may comprise one roller or a plurality of coaxially arranged rollers.
  • the sheet-metal strip may in particular be a sheet metal strip.
  • the bending in the first stage can preferably be done by roll forming. In principle, however, other forming techniques are possible.
  • the bending in the first stage can be done in particular without significant influence on the wall thickness, i. in the first stage, the wall thickness changes by a maximum of 10%, preferably a maximum of 5% or 1%, wherein preferably in the first stage only a reduction of the wall thickness and no increase in the wall thickness is provided.
  • the bends are retained and are still present in the finished profile.
  • the profile production can be further simplified.
  • it can be provided to cancel at least one of the bends after upsetting and thickening again.
  • this bend is merely an auxiliary structure for the production of the thickening, which is no longer present in the finished profile.
  • the freedom in the positioning of the thickening is further increased.
  • the first roller arrangement has a first axis of rotation and the second roller arrangement has a second axis of rotation, wherein the axes of rotation are expediently parallel.
  • a nip is formed through which the metal strip is performed.
  • the center section during upsetting, seen in cross-section of the sheet metal strip at least approximately perpendicular to the axis of rotation of the first roller assembly and / or the axis of rotation of the second roller assembly.
  • the angle between the central portion, in particular between the flat sides of the central portion, and the axes of rotation 90 ° +/- 10 °, in particular 90 ° +/- 5 °, preferably 90 ° +/- 1 °.
  • the center section is thus guided through the roll gap at least approximately perpendicular to the rolling axes, so that the compression forces applied by the rolls lie in the plane of the center section.
  • a further preferred embodiment of the invention lies in the fact that the first flank section, viewed in cross-section of the sheet-metal strip, protrudes at least approximately at right angles from the middle section, and / or that the second flank section, seen in cross-section of the sheet-metal strip, protrudes at least approximately at right angles from the central section. Due to the rectangular arrangement, on the one hand, the end regions of the middle section for the roller arrangements are particularly easily accessible, so that the outlay on equipment is particularly low. On the other hand, in such an arrangement, the flank sections and / or the middle section can be supported particularly simply and reliably during swaging so that undesirable deformations are avoided.
  • An at least approximately perpendicular projection can be understood in particular to mean that the respective flank section and the middle section, in particular the flat sides of the respective flank section and the flat sides of the central section, form an angle of 90 ° +/- 10 °, in particular 90 ° +/- 5 ° , preferably 90 ° +/- 1 °.
  • Another embodiment of the invention lies in the fact that the two flank sections protrude on opposite flat sides of the middle section from the middle section. Accordingly, the three sections in the cross-section of the sheet metal strip at least approximately form a Z-shape, wherein the two outer legs of the Z-shape are formed by the flank portions and the center leg of the Z-shape through the central portion. According to this embodiment, the two roller assemblies can support the central portion during upsetting on both sides, so that manufacturing precision and manufacturing reliability can be further enhanced.
  • the sheet-metal strip in the second stage is locally thickened on at least one of the end regions of the middle section, in particular in both end regions.
  • This embodiment takes into account that the end regions of the middle section, ie the transition regions between the middle section and the angled flange sections, in a profile are often particularly burdened.
  • the embodiment provides for strengthening of these particularly stressed areas by targeted local thickening.
  • the method according to the invention can also be used with other methods affecting sheet thickness, such as e.g. Strip profile rolls or strip edge upsetting are combined.
  • Strip profile rolls or strip edge upsetting are combined.
  • At least one of the two flank sections, in particular both flank sections, is thinned out of the roller arrangements in the second step.
  • thickenings and thinning are produced in the second stage with the same complementary roller arrangements, so that particularly large wall thickness variations can be produced in the profile with particularly little effort.
  • the center section In order to thicken larger areas of the sheet-metal strip, it may be advantageous for the center section to be further compressed by means of two further complementary roller arrangements which act on the two opposite end areas of the middle section in a third step adjoining the second step, thereby enlarging the local thickening , It is also possible to provide further such upsetting steps, so that the middle section is reduced in height several times and the thickening is likewise increased several times.
  • a width of the profile during the upsetting in the second stage can be avoided for example by lateral support rollers and / or by a shoulder in the roller assemblies. Possibly, however, the method can also be carried out without the use of such auxiliary tools or auxiliary geometries.
  • a further advantageous development of the invention is that the sheet-metal strip is bent at least four times in the first stage, so that, seen in cross-section of the sheet metal strip, a further central portion is formed at the opposite end portions each a flank portion protrudes angularly, and that in the at the first stage subsequent second stage, the two central portions are compressed by means of the two complementary roller assemblies. Accordingly, by the two roller assemblies simultaneously compressed two middle sections while the sheet metal strip locally thickened at least two points in cross-section of the sheet metal strip, so that the cost of the process can be further increased.
  • the two middle sections viewed in the cross section of the sheet-metal strip, run at least approximately parallel.
  • the compression force can be introduced particularly effectively in both middle sections at the same time.
  • An at least approximately parallel course can be understood to mean that the two middle sections, in particular their flat sides, enclose an angle of less than 10 °, in particular less than 5 ° or 1 °.
  • the sheet metal strip can have a U-shape in regions in the cross-section of the sheet-metal strip, the side legs of the U-shape being formed by the two middle sections and the center leg of the U-shape being formed by the common flank section.
  • a profile shape is generated in the first stage, which includes at least one at least approximately vertical portion, the central portion. Subsequently, this profile shape is guided by complementary roller arrangements, which form a roll gap which is lower than the vertical central portion, which leads to a compression of the central portion.
  • FIGS. 1 to 4 show cross-sectional views of a metal strip in successive process stages of a first embodiment of a method according to the invention.
  • Starting material of the process is an unbent, flat sheet metal strip 1 as in FIG. 1 shown.
  • the sheet metal strip 1 preferably by roll profiling, bent twice, wherein the bending takes place about bending axes, in the longitudinal direction of the sheet metal strip, ie perpendicular to the plane of the FIGS. 1 to 4 extend.
  • the in FIG. 2 shown stepped structure having a central portion 10 and two angularly, in particular at right angles, for this purpose arranged flank sections 13 and 14 obtained, the flank sections 13 and 14 protrude at opposite end portions 23 and 24 from the central portion 10.
  • the two flank sections 13 and 14 in this case point in opposite directions, ie they project from opposite flat sides 17 and 18, respectively, from the middle section 10.
  • a structure which is angled at right angles to the cross section in two sections is obtained, in which the central section 10 is arranged perpendicular to the two flank sections 13 and 14, extending between the two flank sections 13, 14.
  • FIG. 2 deformed sheet metal strip 1 as in FIG. 3 shown guided by a nip formed between two corresponding roller assemblies 43 and 44, wherein the roller assemblies 43 and 44 are each rotatable about a rotation axis 53 and 54, respectively.
  • the sheet-metal strip 1 is passed between the two roller assemblies 43 and 44 that, seen in cross-section of the sheet-metal strip 1, the two flank portions 13 and 14 parallel to the two axes of rotation 53 and 54 and the central portion 10 perpendicular to the two axes of rotation 53 and 54 extend ,
  • the metal strip 1 act, as indicated by the arrows S, parallel to the plane and the flat sides 17, 18 of the central portion 10 directed compression forces on the end portions 23, 24 of the central portion 10, which elevate the central portion 10 in its end regions 23, 24 and thicken.
  • Compression-displaced material can flow into recesses 63 and 64, which are formed on the two roller assemblies 43 and 44 in the region of the end regions 23 and 24, respectively, thereby forming thickenings.
  • the first roller assembly 43 has a smaller diameter portion 91 and a larger diameter portion 92.
  • the second roller assembly 44 has a smaller diameter portion 96 and a larger diameter portion 95, wherein the smaller diameter portion 91 of the first roller assembly 43 opposite the larger diameter portion 95 of the second roller assembly 44 and the larger diameter portion 92 of the first roller assembly 43 to the smaller diameter portion 96 of the second Roller assembly 44 is opposite.
  • the first flank portion 13 is passed and preferably thinned out.
  • the second flank portion 14 is passed and thereby also preferably thinned out.
  • the middle section 10 is supported transversely to the direction of the compression forces S in the second stage when compressing the two larger diameter portions 95 and 92 which abut the flat sides 17 and 18, so that an undesirable deformation of the central portion 10 is prevented.
  • the second step, ie the compression step, according to an alternative embodiment of the invention is in FIG. 5 shown.
  • the sheet-metal strip is bent four times in the first step, so that two parallel central portions 10 and 11 are obtained, which are connected by a common edge portion 14.
  • the common flank section 14 forms a U-shape with the two central sections 10 and 11 in cross-section.
  • the metal strip has a hat shape in cross section.
  • the central portions 10 and 11 are simultaneously upset and thickened by the two roller assemblies 43, 44.
  • the two roller assemblies 43, 44 are each formed mirror-symmetrically.
  • the first roller assembly 43 has a smaller-diameter portion 71, next to a central diameter larger area 72 and next to a further smaller diameter portion 73.
  • the corresponding second roller arrangement 44 has a diameter-sized region 74, next to it a smaller-diameter region 75 and next to it a further diameter-larger region 76.
  • the areas 71 and 74, 72 and 75 and 73 and 76 are opposite.
  • At least one of the outer edge portions 13 and 15 can be supported laterally by means of support rollers 103 and 105, respectively.
  • These support rollers 103 and 105 may in particular be part of the second roller arrangement 44.
  • One or more lateral support rollers acting on at least one end portion of the sheet metal strip 10 may also be provided in the other described embodiments.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Forging (AREA)
  • Metal Rolling (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
EP12171604.7A 2011-07-13 2012-06-12 Procédé de fabrication dýun profilé à partir d'une bande de tôle Not-in-force EP2548666B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011079095A DE102011079095A1 (de) 2011-07-13 2011-07-13 Verfahren zum Herstellen eines Profils aus einem Blechband

Publications (2)

Publication Number Publication Date
EP2548666A1 true EP2548666A1 (fr) 2013-01-23
EP2548666B1 EP2548666B1 (fr) 2014-02-26

Family

ID=46318951

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12171604.7A Not-in-force EP2548666B1 (fr) 2011-07-13 2012-06-12 Procédé de fabrication dýun profilé à partir d'une bande de tôle

Country Status (10)

Country Link
US (1) US9199289B2 (fr)
EP (1) EP2548666B1 (fr)
CN (1) CN102873181B (fr)
BR (1) BR102012016611A2 (fr)
CA (1) CA2782445A1 (fr)
DE (1) DE102011079095A1 (fr)
DK (1) DK2548666T3 (fr)
IN (1) IN2012CH02736A (fr)
RU (1) RU2610375C2 (fr)
UA (1) UA110929C2 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH568111A5 (en) * 1972-12-15 1975-10-31 Rapena Patent & Verwaltungs Ag Cold forming metal strip by rolling - to form sections for metal windows
JPH06246301A (ja) * 1993-03-01 1994-09-06 Aichi Steel Works Ltd 板曲げチャンネル材の冷間圧延方法
EP0736345A1 (fr) 1995-04-03 1996-10-09 HILTI Aktiengesellschaft Procédé de fabrication d'un rail profilé
EP2025420A1 (fr) 2007-08-16 2009-02-18 HILTI Aktiengesellschaft Procédé d'amincissement de laminage d'une seule pièce
EP2065532A1 (fr) 2007-11-28 2009-06-03 HILTI Aktiengesellschaft Profilé à partir d'une bande laminée
EP2085163A1 (fr) 2008-02-01 2009-08-05 HILTI Aktiengesellschaft Procédé de profilage à froid pour la production d'un profilé
EP2108469A1 (fr) * 2008-04-08 2009-10-14 BPW Bergische Achsen KG Procédé de fabrication d'un corps d'axe constitué de profilés installés les uns contre les autres
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

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Publication number Priority date Publication date Assignee Title
US1343753A (en) * 1919-04-14 1920-06-15 Sloper Thomas Beaded strip of metal and the process of rolling the same
BE794217A (fr) * 1972-01-19 1973-05-16 Rapena Patent & Verwaltungs Ag Procede de fabrication de barres profilees et corps assembles a partir de celles-ci
SE399521B (sv) * 1974-09-24 1978-02-20 Metalform Ab Sett att i ett flertal stick nedvalsa ett metallemne
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
SU749489A1 (ru) * 1978-06-29 1980-07-23 Украинский научно-исследовательский институт металлов Способ изготовлени гнутых профилей проката с элементами двойной толщины у кромок
US4279139A (en) * 1979-07-02 1981-07-21 Arbed Acieries Reunies De Burbach-Eich-Dudelange, Societe Anonyme Method of rolling angle structural shapes
JPH0613123B2 (ja) * 1986-01-30 1994-02-23 日本冶金工業株式会社 プラネタリ−ミルライン圧延方法
JP2853123B2 (ja) * 1986-03-12 1999-02-03 ドン インコ−ポレイテッド 常温圧延金属成形物及びその成形方法並びにその成形装置
US4969346A (en) * 1986-03-12 1990-11-13 Usg Interiors, Inc. Apparatus for producing cold roll-formed structures
DE3738566A1 (de) * 1987-04-01 1988-10-13 Spaeth Gmbh & Co Kg Stahlbau B Verfahren und vorrichtung zum biegen eines bleches
RU1787637C (ru) 1989-02-08 1993-01-15 Казанский Авиационный Институт Им.А.Н.Туполева Устройство дл образовани утолщений на полосе
AU6527690A (en) * 1989-10-17 1991-05-16 Jacky Vandenbroucke Roll former and/or cutter with quick automated tool
RU2015774C1 (ru) * 1992-07-10 1994-07-15 Казанский государственный технический университет им.А.Н.Туполева Способ изготовления профиля с локальными утолщениями из полосовой заготовки
RU2108180C1 (ru) * 1992-10-26 1998-04-10 Магнитогорский металлургический комбинат им.В.И.Ленина Способ производства неравнополочных зетовых профилей
RU2056192C1 (ru) * 1994-07-20 1996-03-20 Акционерное общество "Магнитогорский металлургический комбинат" Способ изготовления гнутых зетовых профилей
RU2108279C1 (ru) * 1995-10-09 1998-04-10 Пензенский государственный архитектурно-строительный институт Зетобразный профиль и способ его изготовления
US5829295A (en) * 1997-04-08 1998-11-03 The Bradbury Company, Inc. Roll forming machine for forming different sized components having c- and z-shaped cross sections
DE10132960A1 (de) * 2001-07-06 2003-01-16 Sms Demag Ag Arbeitsverfahren zum Walzen von Walzprofilstäben aus Flachbändern
US7096702B2 (en) * 2003-06-06 2006-08-29 U.S. Rollformers Adjustable multi-axial roll former
DE102005003558A1 (de) * 2005-01-26 2006-07-27 Pass Stanztechnik Ag Rollenwerkzeug zur linienhaften Blechverformung sowie Blechverformungsvorrichtung mit einem derartigen Rollenwerkzeug
SE0500954L (sv) * 2005-04-28 2006-02-14 Ortic Ab Produktionslinje och sätt att forma profiler

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH568111A5 (en) * 1972-12-15 1975-10-31 Rapena Patent & Verwaltungs Ag Cold forming metal strip by rolling - to form sections for metal windows
JPH06246301A (ja) * 1993-03-01 1994-09-06 Aichi Steel Works Ltd 板曲げチャンネル材の冷間圧延方法
EP0736345A1 (fr) 1995-04-03 1996-10-09 HILTI Aktiengesellschaft Procédé de fabrication d'un rail profilé
EP2025420A1 (fr) 2007-08-16 2009-02-18 HILTI Aktiengesellschaft Procédé d'amincissement de laminage d'une seule pièce
EP2065532A1 (fr) 2007-11-28 2009-06-03 HILTI Aktiengesellschaft Profilé à partir d'une bande laminée
EP2085163A1 (fr) 2008-02-01 2009-08-05 HILTI Aktiengesellschaft Procédé de profilage à froid pour la production d'un profilé
EP2108469A1 (fr) * 2008-04-08 2009-10-14 BPW Bergische Achsen KG Procédé de fabrication d'un corps d'axe constitué de profilés installés les uns contre les autres
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

Also Published As

Publication number Publication date
DK2548666T3 (da) 2014-04-14
IN2012CH02736A (fr) 2015-07-31
US20130180303A1 (en) 2013-07-18
BR102012016611A2 (pt) 2013-10-01
UA110929C2 (uk) 2016-03-10
CN102873181B (zh) 2016-12-07
US9199289B2 (en) 2015-12-01
RU2610375C2 (ru) 2017-02-09
DE102011079095A1 (de) 2013-01-17
EP2548666B1 (fr) 2014-02-26
RU2012129479A (ru) 2014-01-20
CN102873181A (zh) 2013-01-16
CA2782445A1 (fr) 2013-01-13

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