WO2009023973A1 - Procédé et dispositif pour former un tube à partir d'une tôle - Google Patents

Procédé et dispositif pour former un tube à partir d'une tôle Download PDF

Info

Publication number
WO2009023973A1
WO2009023973A1 PCT/CH2008/000033 CH2008000033W WO2009023973A1 WO 2009023973 A1 WO2009023973 A1 WO 2009023973A1 CH 2008000033 W CH2008000033 W CH 2008000033W WO 2009023973 A1 WO2009023973 A1 WO 2009023973A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheet
holder
counter
tube
die
Prior art date
Application number
PCT/CH2008/000033
Other languages
German (de)
English (en)
Inventor
Werner Urech
Original Assignee
Soutec Soudronic 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 Soutec Soudronic Ag filed Critical Soutec Soudronic Ag
Publication of WO2009023973A1 publication Critical patent/WO2009023973A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/0815—Making tubes with welded or soldered seams without continuous longitudinal movement of the sheet during the bending operation
    • 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
    • B21D5/01—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments
    • B21D5/015—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments for making tubes
    • 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
    • B21D5/10—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 for making tubes

Definitions

  • the invention relates to a device for forming a tube from a sheet according to the preamble of claim 1 and a method for forming a tube from a sheet according to the preamble of claim 6.
  • Under a sheet is also a board, in particular a welded blank (so-called Tailored Blank ) Understood.
  • Under a tube is understood both a cylindrical hollow body and a conically shaped hollow body.
  • tubes are formed by bending a sheet, whereby the gap existing between the sheet edges after bending is closed by welding.
  • the tube is formed in two steps (so-called U-0 forming), one step involving a circumferential swaging operation which may result in reduced ductility of the tube.
  • U-0 forming is used for example for the production of pipeline pipes.
  • the radius of the punch 2 corresponds to the radius of the radius-shaped portion 5 minus the sheet thickness.
  • the radius-shaped area 5 acts as a die to the punch 2.
  • the punch 2 is arranged on a trained as a sword holder 6, via which the punch 2 can be moved up and down.
  • a plate 7 is inserted between the punch 2 and the die 3.
  • the punch 2 is then lowered and presses the sheet 7 against the radius-shaped region 5, so that the sheet 7 corresponding to the radius of the punch 2 and the radius-shaped portion 2 is bent or rounded.
  • another portion of the sheet 7 is typically bent, which portions may overlap.
  • the depth of the radiused portion 5 of the die 3 depends on the desired number of forming steps and the resulting wrapping of the punch 2 by the bent sheet 7 at each forming step, the wrap of the sheet being typically measured in degrees and some overlap of the sheet Form steps is taken into account.
  • the tubes are in the known
  • Multi-step method usually shaped so that the radius of the formed during the individual steps steps portions of the sheet 7 is only slightly larger than the radius of the finished tube. Since the plate 7 springs back upon lifting of the punch 2 after each forming step, the radii of the punch 2 and the radiused portion 5 of the die 3 are smaller than the inner and outer radius of the tube to be formed. The extent of the springback represents the scrubsprungmass.
  • Figures 1 to 6 show the first six
  • Forming steps of the known multi-step molding process which comprises, by way of example, seven molding steps.
  • the forming steps shown in FIGS. 1, 3 and 5 (first, third and fifth forming steps) in which one half of the sheet 7 is formed or rounded correspond to the forming steps shown in FIGS. 2, 4 and 6 (second, fourth, etc.) and sixth forming step) for the forming or rounding of the other half of the sheet 7.
  • the first two forming steps (FIGS. 1 and 2), they are joined to the sheet edges Edge portions of the sheet 7 rounded.
  • subsequent, inner sections of the sheet are then rounded to these edge sections.
  • the sections of the sheet 7 adjoining the sections formed in the third and in the fourth forming step are rounded.
  • all forming steps on one side (eg on the left side as seen by the observer) and then all forming steps on the other side (eg on the right side of the observer) of the forming step can also be carried out first ,
  • the tube is completed except for an opening in the form of a gap between the plate edges. Since the radii of punch 2 and radius-shaped portion 5 are smaller than the radius of the tube to be formed, there would be an overlap of the sheet edges of the sheet 7. This is prevented by the sword 6 of the punch 2 by the sheet edges abut against the sword and thereby be bent back from this or spring back, wherein the edges 8 of the radius-shaped portion 5 of the die 3 form the points or axes of rotation at which the highest (re) bending moment occurs. At these points, a high local bending stress is produced in the plate 7, wherein a tensile force acts on the inner side of the sheet metal and a compressive force acts on the outer side of the sheet metal.
  • the inside of the sheet metal is the side of the sheet 7, which forms the inside of the pipe to be formed.
  • Sheet metal side is corresponding to the side of the sheet 7, which forms the outside of the pipe to be formed.
  • Figure 8 shows a molded Tube 9 with such permanent deformations 10. If the yield strength is not exceeded, so the sheet 7 springs back after raising the punch 2 and thus after relieving back into a cylindrical shape. Occur at a desired number of
  • the tube typically has an opening in the form of a gap between the plate edges, which opening is for example 6 to 12 mm wide.
  • the radii of the punch 2 and the radiused portion 5 of the die 3 are also determined depending on the desired gap width.
  • the gap can then be closed by suitable clamping means in a welding machine, wherein the sheet edges which form the welding edges are butt welded.
  • a laser resonator is usually used as a source of welding.
  • the inventive device for forming a tube from a sheet metal has a die and a punch, wherein in the die a counter-holder is provided, which is preferably spring-mounted.
  • the counter-holder is adjustable in height and lockable, with a device for locking the counter-holder is provided.
  • the counterpart can as
  • Counter ledge be formed and is used in particular for pressing the sheet against the punch.
  • the counter-holder is designed such that it can be locked at a height in which it protrudes beyond a surface of the die or a radius-shaped portion of the die.
  • protrude is also understood to mean a partial protrusion, ie a protrusion with a part of the counter-holder
  • the surface of the counter-holder is adapted to the surface of the die, ie it has the same radius as the surface of the die During the molding process, the counter-holder presses the sheet resting on it against the stamp during the lowering of the stamp and thus prevents the sheet from slipping during the molding process.
  • the counter-holder is locked in a height in which it protrudes beyond the surface of the die or a radius-shaped region of the die in order to carry out the last forming step.
  • the punch is then lowered onto the sheet lying on the counter-holder.
  • the last forming step preferably the last bow of the tube is formed.
  • the counter-holder in its lowest position is preferably flush with the surface of the die, ie the surface of the counter-holder forms a curved plane with the surface of the die.
  • preceding molding steps serve both the die or its radius-shaped area and the counter-holder as a die for the punch, used in the last forming step, only the protruding beyond the die counterholder as compared to the previous steps narrowed die for the punch.
  • the narrowing of the die advantageously has the consequence that in the last forming step, in which only a relatively narrow section of the sheet is bent, the width of the section corresponding at most to the width of the counter-holder, only relatively small
  • Rebend stresses occur and permanent deformation after the tube outside can be avoided. Since, in the case of the last forming step, the die is formed with a slight wrap around the die because of the narrowing of the die, in the case of the forming steps preceding the last forming step a larger looping of the punch, that is to say with a wrap around a larger angle range, can be formed. Because it is possible to work with a larger loop in the forming steps preceding the last forming step, the number of forming steps can be compared with the known, so-called Soudronic method Multi-step molding can be reduced or minimized without causing permanent deformation. In particular, according to the method according to the invention, no more than five molding steps are required for forming a pipe from a metal sheet, which makes it possible to reduce or minimize the cycle time in production.
  • the counter-holder may comprise an opening, preferably a transverse bore, and the means for locking a fitting, preferably a rod, for insertion into this opening.
  • the device for locking can also be designed as a clamping device, which allows lateral clamping of the counter-holder.
  • the locking of the counter-holder can also be achieved in that a means for locking, which is formed for example as a cylindrical or sawtooth shaped piece (eg as a wedge) or hydraulic cylinder, is placed under the counter-holder, in particular in an embodiment of the device for locking as a hydraulic cylinder locking in different heights is possible.
  • tubes can be formed which have a length of, for example, 500 to 4000 millimeters, a tight roundness tolerance and sufficient to optimum deformability for further processing by means of bending, hydroforming (hydroforming) or the like, so that, for example Components for vehicles such as chassis parts and load-bearing body components (eg beams, sills, roofing rings, columns, etc.) can be produced.
  • the inventive method and the inventive device are applicable to sheets of a variety of materials, such as soft to high-strength steels, aluminum alloys, etc.
  • FIG. 1 shows a device known from the prior art for forming a tube from a sheet in a perspective view ( Figure Ia) and in front view ( Figure Ib) in a first forming step
  • FIG. 2 shows a device known from the prior art for forming a tube from a sheet in a perspective view (FIG. 2a) and in a front view (FIG. 2b) in a second forming step, FIG.
  • Figure 3 is a known from the prior art apparatus for forming a tube from a sheet in a perspective view ( Figure 3a) and in front view (Figure 3b) in a third forming step
  • Figure 4 is a known from the prior art apparatus for forming a tube from a sheet in perspective view ( Figure 4a) and in front view ( Figure 4b) in a fourth molding step
  • FIG. 5 shows a device known from the prior art for forming a tube from a sheet in a perspective view (FIG. 5a) and in a front view (FIG. 5b) in a fifth forming step, FIG.
  • Figure 6 is a known from the prior art apparatus for forming a tube from a sheet in a perspective view ( Figure 6a) and in
  • FIG. 7 shows a device known from the prior art for forming a tube from a sheet in a perspective view (FIG. 7 a) and in a front view (FIG. 7 b) in a seventh and final forming step
  • 8 shows a tube formed in seven steps with the known device shown in FIGS. 1 to 7 in a perspective view (FIG. 8a) and in a front view (FIG. 8b);
  • FIG. 9 shows a device according to the invention for forming a tube from a metal sheet in a perspective view (FIG. 9a) and in front view (FIG. 9b) with an inserted sheet metal,
  • FIG. 10 shows an inventive apparatus for forming a tube from a sheet in a perspective view ( Figure 10a) and in front view ( Figure 10b) in a first molding step
  • FIG. 11 shows an inventive apparatus for forming a tube from a sheet in a perspective view ( Figure IIa) and in front view ( Figure IIb) in a second forming step
  • FIG. 12 shows a device according to the invention for forming a tube from a sheet in a perspective view (FIG. 12a) and in a front view (FIG. 12b) in a third forming step,
  • FIG. 13 shows a device according to the invention for forming a tube from a metal sheet in a perspective view (FIG. 13a) and in a front view (FIG. 13b) in a fourth forming step
  • FIG. 14 shows a device according to the invention for forming a tube from a metal sheet in a perspective view (FIG. 14a) and in front view (FIG. 14b) in a fifth and last forming step
  • FIG. 15 a device according to the invention shown in FIGS. 9 to 14 in five
  • FIG. 9 shows an inventive device
  • a radius-shaped portion 25 is provided, the radius of which corresponds to the radius of the punch 22.
  • the surface 24 also includes, as the surface of the die, the unspecified surface of the radiused area.
  • the punch 22 is arranged on a holder 26 configured as a sword.
  • a sheet 27 is inserted between punch 22 and die 23 or its radius-shaped region 25 and comes to bear on the portions of the surface 24 of the die 23 located laterally of the radius-shaped region 25.
  • a movable, height-adjustable counter-holder 28 is arranged in the die 23 or in the radius-shaped region 25 in the die 23 or in the radius-shaped region 25, a movable, height-adjustable counter-holder 28 is arranged.
  • the radius of the surface 34 of the counter-holder 28 corresponds to the
  • the counter-holder 28 is preferably arranged centrally in the radius-shaped area (see Figure Ib).
  • the width of the counter-holder 28 is less than the width of the radius-shaped portion 25.
  • a height adjustment unit 29 for adjusting the height of the counter-holder 28, which is formed in particular as a suspension, which is arranged below the counter-holder 28.
  • the height adjustment unit 29 is preferably arranged several times in the device according to the invention at certain, preferably constant intervals. A hydraulic bearing of the counter-holder 28 is also possible.
  • the counter-holder 28 can be raised to a height in which it projects beyond the radius-shaped region 25 of the die 23 or over the portion of the surface 24 of the die 23 assigned to the radius-shaped region 25.
  • the surface 34 of the counter-holder 28 preferably terminates flush with the radius-shaped region 25 or its surface 24. It is a device 30 for locking the
  • Counter-holder 28 is provided, which by way of example comprises a shaped piece in the form of a rod 31, which is performed for locking the counter-holder 28 by an opening provided in the counter-holder 28 32 in the form of a transverse bore and preferably inserted into a groove 33 in the die 23.
  • the device 30 for locking along the device according to the invention preferably several times at certain, preferably constant intervals arranged.
  • the groove 33 is located in the adjacent to the anvil 28 inner
  • the groove 33 and / or the transverse bore 32 may also be considered as part of the means 30 for locking.
  • the arrows indicated on the rod 31 and the counter-holder 28 symbolize the mobility of both the rod 31 and the counter-holder 28.
  • FIG. 10 shows how, with the device 21 according to the invention, a first shaping step for forming a tube from the sheet 27 is carried out.
  • the counter-holder 28 is in its initial state, ie it or its surface 34 terminates flush with the radius-shaped region 25. This is symbolized in FIG. 10 (and in FIGS. 11 to 13) by the downwardly pointing arrow on the counter-holder 28.
  • the anvil 28 need not be locked in its initial state.
  • the rod 31 of the means 30 for locking is not inserted into the transverse bore 32 of the counter-holder 28. This is symbolized in Figure 10 (and in Figures 11 to 13) by the outwardly directed arrow on the rod 31.
  • the first forming step it will follow the instructions of the
  • FIG. 11 shows a second forming step for forming a tube with the invention
  • the second forming step corresponds to the first forming step, wherein in the second forming step, an edge portion (right edge portion) of the sheet 27 adjoining the right-hand sheet edge seen by the viewer is bent. Also in the second forming step, a larger looping of the sheet 27 around the punch 22 can be selected than in the second forming step of the known multi-step molding process (see FIG. 2), wherein the wrapping preferably corresponds in terms of amount to the wrapping in the first forming step of the process according to the invention.
  • FIG. 12 shows a third forming step for forming a tube with the device 21 according to the invention, in which a section of the plate 27 adjoining the left-hand edge section as seen by the observer is bent.
  • the counter-holder 28 is preferably still not locked and is in its initial state, ie it or its surface 34 closes flush with the radius-shaped portion 25 from.
  • a larger looping of the sheet 27 around the punch 22 can be selected than in the third forming step of the known multi-step molding process (see Fig. 3), wherein the looping is preferably selected larger than in the first or second forming step of the inventive method.
  • FIG. 13 shows a fourth forming step for forming a tube with the device 21 according to the invention.
  • the fourth forming step corresponds to the third forming step, wherein in the fourth forming step a section of the plate 27 adjoining the right-hand edge section as seen by the observer is bent.
  • a larger looping of the sheet 27 around the punch 22 is preferably also selected than in the fourth forming step of the known multi-step molding process (see FIG. 4), wherein the looping is preferably selected to be greater than in the first or second forming step of the method according to the invention and in terms of amount, the looping in the third shaping step preferably corresponds to the method according to the invention.
  • Forming step of the inventive method for forming a tube with the inventive device 21 In the fifth forming step, the bow of the tube is formed.
  • Height adjustment unit 29 brought into a height in which it projects beyond the radius-shaped region 25 and thus over the surface 24 of the Gesenk 23.
  • the raising of the counter-holder 28 is symbolized in FIG. 14 by the upwardly pointing arrow on the counter-holder 28.
  • the counter-holder 28 is locked by the locking means 30 by the rod 31 is performed by the transverse bore 32 of the counter-holder 28 and inserted into the groove 33 of the die 23.
  • the locking of the counter-holder 28 is symbolized in Figure 14 by the inwardly directed arrow on the rod 31.
  • FIG. 15 shows an example of a method according to the invention and the method according to the invention
  • the tube 36 unlike the tube 9 (see Figure 8) formed by the known multi-step molding method of Figures 1 to 7, advantageously has no permanent deformation, for example in the form of wrinkles to the outside, up.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

L'invention concerne un dispositif (21) pour former un tube, notamment un tube cylindrique et/ou conique, à partir d'une tôle (27), ce dispositif comprenant un poinçon (22) et une matrice (23) pourvue d'un fond de matrice (28) mobile en hauteur et blocable et d'un dispositif (30) destiné au blocage du fond de matrice (28). L'invention porte également sur un procédé pour former un tube à partir d'une tôle (27) au moyen d'un dispositif (21) selon une des revendications de l'invention. Selon ce procédé, dans une dernière étape de formage, le fond de matrice (28) est bloqué à une hauteur où il se trouve en saillie relativement à une surface (24) de la matrice (23), le poinçon (22) étant abaissé sur la tôle (27) posée sur le fond de matrice (28).
PCT/CH2008/000033 2007-08-21 2008-01-31 Procédé et dispositif pour former un tube à partir d'une tôle WO2009023973A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1314/07 2007-08-21
CH13142007 2007-08-21

Publications (1)

Publication Number Publication Date
WO2009023973A1 true WO2009023973A1 (fr) 2009-02-26

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101983109A (zh) * 2009-06-19 2011-03-02 贝格有限责任公司锡根 多层管道制造的优化方法
WO2015152108A1 (fr) * 2014-03-31 2015-10-08 Ｊｆｅスチール株式会社 Procédé de formage de tube en acier et dispositif de formage utilisant une flexion en trois points
EP3006128A4 (fr) * 2013-05-29 2016-06-29 Jfe Steel Corp Procédé de fabrication de tuyau en acier soudé
CN105983598A (zh) * 2015-02-09 2016-10-05 江苏金达电热电器有限公司 一种液压滚筒压紧机
CN106180295A (zh) * 2016-08-30 2016-12-07 天津滨海精大制桶有限公司 一种钢桶卷圆成型模具
WO2016193395A1 (fr) * 2015-06-03 2016-12-08 Sms Group Gmbh Procédé de fabrication de tubes fendus en feuilles de tôle
DE102016114934B3 (de) * 2016-08-11 2018-02-01 Finow Automotive GmbH Verfahren und Vorrichtung zur Herstellung eines runden Hohlprofils
CN111872232A (zh) * 2020-07-21 2020-11-03 东莞市振亮精密科技有限公司 一种金属加工件卷圆成型装置及成型方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2763924A (en) * 1953-12-29 1956-09-25 Bellometti Ugo Process and apparatus for manufacturing tubes, tanks and hollow bodies generally from metal in sheet or band form
JPS5853328A (ja) * 1981-09-25 1983-03-29 Matsushita Electric Ind Co Ltd コイル曲げ金型
WO2001012356A1 (fr) * 1999-08-13 2001-02-22 Elpatronic Ag Procede et dispositif de moulage d'enveloppes de tuyaux coniques
EP1382402A2 (fr) * 2002-07-15 2004-01-21 SMS Meer GmbH Dispositif pour la fabrication de tubes à partir de tôles
JP2004195504A (ja) * 2002-12-18 2004-07-15 Nippon Steel Corp 鋼管の成形装置、成形方法、及び製造設備列
JP2005324255A (ja) * 2005-06-17 2005-11-24 Nakajima Steel Pipe Co Ltd 丸鋼管の製造方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2763924A (en) * 1953-12-29 1956-09-25 Bellometti Ugo Process and apparatus for manufacturing tubes, tanks and hollow bodies generally from metal in sheet or band form
JPS5853328A (ja) * 1981-09-25 1983-03-29 Matsushita Electric Ind Co Ltd コイル曲げ金型
WO2001012356A1 (fr) * 1999-08-13 2001-02-22 Elpatronic Ag Procede et dispositif de moulage d'enveloppes de tuyaux coniques
EP1382402A2 (fr) * 2002-07-15 2004-01-21 SMS Meer GmbH Dispositif pour la fabrication de tubes à partir de tôles
JP2004195504A (ja) * 2002-12-18 2004-07-15 Nippon Steel Corp 鋼管の成形装置、成形方法、及び製造設備列
JP2005324255A (ja) * 2005-06-17 2005-11-24 Nakajima Steel Pipe Co Ltd 丸鋼管の製造方法

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101983109A (zh) * 2009-06-19 2011-03-02 贝格有限责任公司锡根 多层管道制造的优化方法
EP3006128A4 (fr) * 2013-05-29 2016-06-29 Jfe Steel Corp Procédé de fabrication de tuyau en acier soudé
CN106132578B (zh) * 2014-03-31 2018-01-05 杰富意钢铁株式会社 基于三点弯曲冲压成形的钢管的成形方法及成形装置
WO2015152108A1 (fr) * 2014-03-31 2015-10-08 Ｊｆｅスチール株式会社 Procédé de formage de tube en acier et dispositif de formage utilisant une flexion en trois points
JP2015199125A (ja) * 2014-03-31 2015-11-12 Ｊｆｅスチール株式会社 ３点曲げプレス成形による鋼管の成形方法および成形装置
CN106132578A (zh) * 2014-03-31 2016-11-16 杰富意钢铁株式会社 基于三点弯曲冲压成形的钢管的成形方法及成形装置
RU2655511C2 (ru) * 2014-03-31 2018-05-28 ДжФЕ СТИЛ КОРПОРЕЙШН Способ и устройство для формовки стальной трубы посредством трехточечной прессовой гибки
KR101852704B1 (ko) 2014-03-31 2018-04-26 제이에프이 스틸 가부시키가이샤 3 점 굽힘 프레스 성형에 의한 강관의 성형 방법 및 성형 장치
EP3127625A4 (fr) * 2014-03-31 2017-08-02 JFE Steel Corporation Procédé de formage de tube en acier et dispositif de formage utilisant une flexion en trois points
CN105983598A (zh) * 2015-02-09 2016-10-05 江苏金达电热电器有限公司 一种液压滚筒压紧机
WO2016193395A1 (fr) * 2015-06-03 2016-12-08 Sms Group Gmbh Procédé de fabrication de tubes fendus en feuilles de tôle
CN108076631A (zh) * 2015-06-03 2018-05-25 西马克集团有限公司 由金属板制造直缝管筒的方法
US11097326B2 (en) 2015-06-03 2021-08-24 Sms Group Gmbh Method for producing open-seam pipes from sheet metal panels
DE102016114934B3 (de) * 2016-08-11 2018-02-01 Finow Automotive GmbH Verfahren und Vorrichtung zur Herstellung eines runden Hohlprofils
CN106180295A (zh) * 2016-08-30 2016-12-07 天津滨海精大制桶有限公司 一种钢桶卷圆成型模具
CN111872232A (zh) * 2020-07-21 2020-11-03 东莞市振亮精密科技有限公司 一种金属加工件卷圆成型装置及成型方法

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