EP2529849B1 - Dispositif et procédé de fabrication de tuyaux fendus à partir de plaques de tôle - Google Patents

Dispositif et procédé de fabrication de tuyaux fendus à partir de plaques de tôle Download PDF

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Publication number
EP2529849B1
EP2529849B1 EP12003900.3A EP12003900A EP2529849B1 EP 2529849 B1 EP2529849 B1 EP 2529849B1 EP 12003900 A EP12003900 A EP 12003900A EP 2529849 B1 EP2529849 B1 EP 2529849B1
Authority
EP
European Patent Office
Prior art keywords
bending
sheet
tube
pipe
open seam
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
EP12003900.3A
Other languages
German (de)
English (en)
Other versions
EP2529849A3 (fr
EP2529849A2 (fr
Inventor
Mario Dr.-Ing. Thome
Manfred Dipl.-Ing. Kolbe
Jochen Dr.-Ing. Vochsen
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.)
SMS Group GmbH
Original Assignee
SMS Group GmbH
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Filing date
Publication date
Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP2529849A2 publication Critical patent/EP2529849A2/fr
Publication of EP2529849A3 publication Critical patent/EP2529849A3/fr
Application granted granted Critical
Publication of EP2529849B1 publication Critical patent/EP2529849B1/fr
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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
    • B21D5/01—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
    • 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

Definitions

  • the invention relates to a method for producing slotted tubes from sheet metal according to the preamble of claim 1.
  • a pipe forming or pipe bending press usually has in a base frame a lower tool consisting of two laterally spaced support or bending bodies and a lower tool that can be positioned vertically from above against the lower tool and carried by a lifting and lowering bending bar extending over the entire length the metal sheet extending upper tool with which a bending force can be applied to the metal sheet resting on the lower tool.
  • the sheet metal is pre-bent on the longitudinal edges, usually in a separate edge bending press.
  • the pre-bending of the longitudinal edges is carried out so that the pipe radius is deformed into a slotted pipe in the area of the later seam, where the longitudinal edges of the metal sheet bent over to form the pipe facing each other for longitudinal seam welding with a gap, is uniformly shaped.
  • the sheet metal pre-bent in this way is then pushed into the pipe forming press and there subjected to the actual bending process.
  • a bending force is applied to the sheet metal sheet by pressing down the upper part of the press, whereby a deformation of the sheet metal is set under the action of the bending bar and the upper forming tool carried by it. This process is repeated several times until the metal sheet has been formed into the slotted tube.
  • a large slot width requires high closing forces in the tack welding device, and because of the high stresses in the tacked pipe and also of residual stresses in the finished welded pipe, there is a risk of the tack or weld seam tearing open. If the slot widths are identified as being too large, this can be remedied by having experienced machine operators close the slot as far as possible by repeatedly manually operating the pipe forming press. This procedure is not only time-consuming with a correspondingly reduced throughput, but also cannot be carried out with reproducibly good quality.
  • the invention is therefore based on the object of creating a method without the disadvantages mentioned, in particular also in the case of thick-walled and small-diameter pipes, for example about 800 mm, in a simple manner to create the production of circular cylindrical slotted pipes with reproducible quality.
  • Two bending steps or two squeezing operations can be sufficient for regionally non-circular preforming as well as for final or final forming, and that also for final forming with the squeezing force applied to the left and right of the gap or slot.
  • the invention provides that the non-circular preform is positioned in the finishing step by turning it clockwise or counterclockwise before applying the clamping force. Depending on the positioning, the pressing force is thus introduced into the non-circular preform to the left or right of the slot or gap.
  • the area formed less to the right of the center is rotated to an approximately 3 o'clock position and the area to the left of the center less formed is rotated to an approximately 9 o'clock position.
  • a pipe forming press 1 which is well known as such, after Fig. 1 one on its long sides with curved edges 2 (cf. Fig. 3 ) provided sheet metal 3 step by step to a finished slotted tube 4 - or formed.
  • the sheet metal 3 rests on a lower tool 6, which has two spaced apart support bodies 5a, 5b, the forming force being applied by an upper tool 9 that can be raised and lowered and formed as a bending bar 7 with a forming tool 8 attached to its leading, front end.
  • the metal sheet 3 to be formed is guided by two lateral counterholders 10a, 10b, of which the counterholder 10a is linearly adjustable and pushes the sheet metal section required for the next forming step.
  • the finished slotted tube 4, as in Figure 1c shows, has a large slot or gap 11, which enables the welding to form a closed, longitudinally welded pipe, as shown in dashed lines in Figure 1c shown, extremely difficult.
  • the non-circular preform 13 thus produced in a first stage in the pipe forming press 1 is fed after it has been conveyed or pushed out of the pipe forming press 1 to a pressing press 14 connected downstream in the production process, as shown in FIG Figure 2b shown.
  • the pressing press 14 has a lower tool 15, which consists of two spaced apart, reversible in their direction of rotation, as in FIG Figure 2b indicated by the double arrows, driven rollers 16a, 16b and a stationary support body 17 bridging the distance between the rollers 16a, 16b.
  • the rotatable rollers 16a, 16b can be supported by a spring means 18 (cf. Fig. 3 ).
  • An upper tool 20 designed with a punch 19 is arranged opposite the lower tool 15.
  • the pressing force for producing the finished, largely circular slotted tube 104 is applied from the outside to the non-circular preform 13 via the punch 19.
  • the non-circular preform 13 is positioned via the rotatable rollers 16a, 16b in such a way that the less molded area 12b lying to the right of the slot or gap 11 is in a 3 o'clock position, as in FIG Fig. 3 indicated by the dash-dotted, horizontal line.
  • the second pressing-bending step is - in the same sequence as before - in Figure 4B illustrated.
  • the preform 13 which is unchanged in its left half, has been positioned so that the area 12a, which is less formed to the left of the slot or gap 11, assumes a 9 o'clock position.
  • the pressing force now applied by the punch 19 on this side of the preform 13 brings the non-circular preform 13 into the final, largely circular shape of the finished slotted tube 104 with the significantly smaller slot or gap 111 achieved in the process (Fig. right outside).

Landscapes

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

Claims (2)

  1. Procédé destiné à la fabrication de tubes fendus (4; 204) à partir de tôles en feuilles (3), en particulier de tôles en feuilles épaisses ; dans lequel on achemine une tôle en feuilles à une presse de formage de tubes (1) dans laquelle on la soumet à un formage sur une matrice (6) sur laquelle vient s'appliquer un poinçon (9) apte à se soulever et à s'abaisser, par l'application d'une force de pliage, de manière progressive pour obtenir le tube fendu (4 ; 104) qui présente des bords longitudinaux opposés destinés à une soudure ultérieure, sous la forme d'un joint longitudinal présentant un espacement ; dans lequel
    on produit d'abord un tube fendu qui comprend un préformé non circulaire (13) en procédant au moins dans une étape de pliage qui agit respectivement à gauche et à droite par rapport au côté interne de la tôle en feuille (3) par rapport aux moyens prédéfinis par l'axe longitudinal du poinçon (9) qui pénètre dans la tôle en feuille (3) qui est soumise à un formage progressif, à un formage réduit par rapport à celui des autres étapes de pliage ;
    caractérisé en ce que l'on positionne le préformé non circulaire (13) dans l'étape de finalisation avant l'application de la force de serrage (F), par rotation dans le sens des aiguilles d'une montre ou dans le sens contraire à celui des aiguilles d'une montre, et ensuite, par l'intermédiaire de l'application d'une force de serrage (F), à partir de l'extérieur sur le préformé non circulaire (13), qui s'exerce respectivement de manière ciblée dans les zones (12a, 12b) qui ont été soumises à un formage réduit antérieur, de part et d'autre du centre, on termine le formage pour obtenir le tube fendu (104) prêt à l'emploi.
  2. Procédé selon la revendication 1, caractérisé en ce que l'on met la zone (12b), qui a été soumise à un formage réduit à droite par rapport au centre, en rotation jusque dans une position qui correspond approximativement à 3 heures et la zone (12a) qui a été soumise à un formage réduit à gauche par rapport au centre, en rotation jusque dans une position qui correspond approximativement à 9 heures.
EP12003900.3A 2011-05-31 2012-05-18 Dispositif et procédé de fabrication de tuyaux fendus à partir de plaques de tôle Active EP2529849B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011103734 2011-05-31

Publications (3)

Publication Number Publication Date
EP2529849A2 EP2529849A2 (fr) 2012-12-05
EP2529849A3 EP2529849A3 (fr) 2017-03-15
EP2529849B1 true EP2529849B1 (fr) 2021-03-10

Family

ID=46318782

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12003900.3A Active EP2529849B1 (fr) 2011-05-31 2012-05-18 Dispositif et procédé de fabrication de tuyaux fendus à partir de plaques de tôle

Country Status (5)

Country Link
EP (1) EP2529849B1 (fr)
JP (1) JP6188282B2 (fr)
CN (1) CN102806245B (fr)
BR (1) BR102012012992B1 (fr)
RU (1) RU2505370C1 (fr)

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RU2640486C2 (ru) * 2013-05-20 2018-01-09 ДжФЕ СТИЛ КОРПОРЕЙШН Гибочный пресс, способ прессовой гибки, устройство для производства стальных труб и способ производства стальных труб
RU2621747C1 (ru) * 2013-05-29 2017-06-07 ДжФЕ СТИЛ КОРПОРЕЙШН Способ получения сварной стальной трубы
RU2648813C2 (ru) * 2013-05-30 2018-03-28 ДжФЕ СТИЛ КОРПОРЕЙШН Способ формовки стальной трубы и способ производства стальной трубы
JP6112740B2 (ja) * 2014-03-31 2017-04-12 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
JP6262166B2 (ja) * 2014-03-31 2018-01-17 Ｊｆｅスチール株式会社 ベンディングプレス成形用金型
KR101528155B1 (ko) * 2014-07-01 2015-06-11 (주)재원산업기계 용접강관 성형기의 프레스벤딩 기구
CN104275364B (zh) * 2014-08-28 2016-08-17 深圳市沃尔核材股份有限公司 一种用以将支撑条制成支撑管的设备
CN104384831B (zh) * 2014-09-12 2016-07-06 安吉中元管业有限公司 一种穿布管的制造方法
CA2967914C (fr) * 2014-11-25 2020-03-24 Jfe Steel Corporation Procede de fabrication de tuyau en acier et moule de presse utilise dans ledit procede
DE102015210259B4 (de) 2015-06-03 2016-12-15 Sms Group Gmbh Verfahren zum Herstellen von Schlitzrohren aus Blechtafeln
RU2641937C1 (ru) * 2016-12-07 2018-01-23 Вячеслав Геннадьевич Баландин Способ изготовления прямошевной трубы со стыковым швом из металлической заготовки и трубоформовочное устройство
KR102267366B1 (ko) 2017-03-15 2021-06-18 제이에프이 스틸 가부시키가이샤 프레스 금형 및 강관의 제조 방법
RU2660464C1 (ru) * 2017-10-23 2018-07-06 Акционерное общество "Выксунский металлургический завод" Способ производства сварных прямошовных труб большого диаметра для магистральных трубопроводов
CN111954580B (zh) * 2018-03-30 2022-05-10 杰富意钢铁株式会社 钢板的端部弯曲方法及装置以及钢管的制造方法及设备
DE102018211311B4 (de) * 2018-07-09 2020-03-26 Sms Group Gmbh Erweiterte Regelung JCO-Formpresse
RU2702666C1 (ru) * 2018-07-25 2019-10-09 Маргарит Арменовна Товмасян Способ шаговой формовки труб большого диаметра
JP6791397B2 (ja) * 2018-09-14 2020-11-25 Ｊｆｅスチール株式会社 鋼管の製造方法及びプレス金型
US11654208B2 (en) 2020-05-27 2023-05-23 Rajasekhar Rayaprol Disinfecting and illuminating lighting assemblies
CN115768572A (zh) 2020-07-10 2023-03-07 杰富意钢铁株式会社 钢管的圆度预测方法、钢管的圆度控制方法、钢管的制造方法、钢管的圆度预测模型的生成方法及钢管的圆度预测装置
KR20230022224A (ko) 2020-07-10 2023-02-14 제이에프이 스틸 가부시키가이샤 강관의 진원도 예측 모델의 생성 방법, 강관의 진원도 예측 방법, 강관의 진원도 제어 방법, 강관의 제조 방법 및, 강관의 진원도 예측 장치
WO2022009576A1 (fr) 2020-07-10 2022-01-13 Ｊｆｅスチール株式会社 Procédé de prédiction de rondeur de tuyau d'acier, procédé de commande de rondeur de tuyau d'acier, procédé de production de tuyau d'acier, procédé de génération de modèle de prédiction de rondeur de tuyau d'acier et dispositif de prédiction de rondeur de tuyau d'acier
WO2022009575A1 (fr) 2020-07-10 2022-01-13 Ｊｆｅスチール株式会社 Procédé de génération de modèle de prédiction de rondeur de tuyau d'acier, procédé de prédiction de rondeur de tuyau d'acier, procédé de commande de rondeur de tuyau d'acier, procédé de fabrication de tuyau d'acier et dispositif de prédiction de rondeur de tuyau d'acier
KR102208184B1 (ko) * 2020-08-05 2021-01-27 주식회사 현대알비 강관 밴딩기의 충격 완화 및 강관 배출장치
DE102020215088A1 (de) 2020-12-01 2022-06-02 Sms Group Gmbh Verfahren zur Herstellung von Schlitzrohren

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Also Published As

Publication number Publication date
JP2012250285A (ja) 2012-12-20
CN102806245B (zh) 2016-06-01
CN102806245A (zh) 2012-12-05
RU2505370C1 (ru) 2014-01-27
JP6188282B2 (ja) 2017-08-30
BR102012012992A2 (pt) 2013-11-05
RU2012122452A (ru) 2013-12-10
EP2529849A3 (fr) 2017-03-15
EP2529849A2 (fr) 2012-12-05
BR102012012992B1 (pt) 2021-03-16

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