EP1010480A1 - Verfahren und Vorrichtung zur Herstellung einer geneigten Zweigleitung in einem metallischen Rohr durch Hydroformung - Google Patents

Verfahren und Vorrichtung zur Herstellung einer geneigten Zweigleitung in einem metallischen Rohr durch Hydroformung Download PDF

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Publication number
EP1010480A1
EP1010480A1 EP99403026A EP99403026A EP1010480A1 EP 1010480 A1 EP1010480 A1 EP 1010480A1 EP 99403026 A EP99403026 A EP 99403026A EP 99403026 A EP99403026 A EP 99403026A EP 1010480 A1 EP1010480 A1 EP 1010480A1
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EP
European Patent Office
Prior art keywords
metal
tube
axis
branch
creep
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Withdrawn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
EP99403026A
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English (en)
French (fr)
Inventor
Martin Gardon
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.)
Tubes Et Formes
Original Assignee
Tubes Et Formes
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 Tubes Et Formes filed Critical Tubes Et Formes
Publication of EP1010480A1 publication Critical patent/EP1010480A1/de
Withdrawn legal-status Critical Current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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/037—Forming branched 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
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/29—Making branched pieces, e.g. T-pieces
    • B21C37/294—Forming collars by compressing a fluid or a yieldable or resilient mass in the tube

Definitions

  • the present invention relates to a method and a hydroforming device for inclined tapping from a metal tube.
  • parts are used metal tubulars which have a main portion to which a connection is connected. These pieces are commonly used for example to form fittings or circulation duct connections of a fluid.
  • hydroforming a forming process, called hydroforming, which consists in placing a metal tube, straight or curved, in an imprint of a matrix comprising a derivation corresponding to the desired shape of the stitching to be made and to gradually flow the metal into this tapping by applying pressure inside the metal tube.
  • a fluid is injected into the tube under high pressure and simultaneously applying so watertight on each end of the mobile piston tube in the matrix to push on these ends and force the metal to flow in the bypass of this matrix.
  • Metal creep in the bypass is controlled by a counter pusher arranged in said bypass and moving in translation at the same time as the metal which gradually forms the stitching, under the effect of the pressure inside the tube.
  • the pusher is connected to a element which exerts an antagonistic resistance or force metal creep during the movement of this pusher in the bypass to allow the metal to flow evenly.
  • the counter pusher is movable in translation in the derivation of the matrix between a first position near the connection area between the cylindrical portion and this derivation and a second position moved away from said zone by a corresponding distance to the length of the stitching to be performed.
  • the pusher extends in the branch, either perpendicular to the axis of said diversion, either parallel to the axis of the portion cylindrical of the matrix imprint.
  • the pusher In the case where the pusher extends perpendicularly at the axis of the derivation, it subsists in the first position of the pusher between it and the portion of the tube opposite the branch, a free space which does not make it possible to control the creep of the metal from initiation of deformation in the bypass and what may cause risk of explosion of this metal.
  • the stitching carried out by creep of the metal in the bypass has an end wall also extending parallel to the axis of the tube.
  • the cutting of the free end of the nozzle is made in a direction perpendicular to the axis of this stitching so that part of said stitching is removed decreasing thus its length.
  • the object of the invention is to propose a method and a device for hydroforming a tapping tilted from a metal tube which avoids the disadvantages previously mentioned.
  • the subject of the invention is therefore a method of making by hydroforming of an inclined tap from a metal tube, in which the tube is placed in a matrix having an impression formed by a cylindrical portion intended to receive the tube and a corresponding branch to the desired shape of said stitching, we inject into the tube a fluid under high pressure and simultaneously pushes on each end of said tube to force the metal to flow in this branch, characterized in that as soon as the creep of the metal begins in the bypass, we retain the front surface of the metal in this derivation along a surface parallel to the axis of the tube and, at course of the metal creep in said branch, we orient the front surface of the metal along a perpendicular surface to the axis of the diversion.
  • a part produced by the device according to the invention which comprises, on the one hand, a main tubular part 1 and, on the other hand, a straight 2 tap and inclined according to a determined angle.
  • This tapping 2 is carried out by hydroforming from of a metal tube 3 and by means of a device shown in Figs. 2 and 3.
  • This hydroforming device includes a matrix 10 with a fingerprint designated as a whole by the reference 11 and which is formed of a cylindrical portion 12 intended to receive the tube 3 and a bypass 13 opening into the cylindrical portion 12 and having a shape corresponding to the stitching 2.
  • This branch 13 is inclined along an axis YY 'with respect to the vertical of an angle ⁇ equal to the angle tilt angle 2.
  • the hydroforming device also has two opposite pistons 14, movable in the cylindrical portion 12 formed in the matrix 10 and means 15 for injecting a fluid under high pressure at inside the metal tube 3.
  • the hydroforming device comprises a counter pusher 20 disposed in the bypass 13 provided in matrix 10 and means designated by the reference general 30 of translational and rotational movement of the pusher 20.
  • These means 30 are constituted by a jack 31 mounted rotatably movable on a frame, not shown, and which has a piston rod 32.
  • the cylinder 31 is rotated 180 ° to using for example an electric motor 33 whose shaft output is fitted with a pinion 34 which meshes with a wheel toothed 35 mounted on the cylinder body 31.
  • the rotational movement of the jack 31 can be provided by any other suitable system.
  • the free end of the piston rod 32 is connected to the pusher 20 via a crank 21.
  • This crank 21 therefore comprises a first end 21a connected to the pusher 20 and a second end 21b connected to the piston rod 32 of the jack 31.
  • the axis ZZ 'of the piston rod 32 of the jack 31 forms an angle ⁇ equal to half the angle with the vertical ⁇ of inclination of the nozzle 2.
  • the displacement of the pusher 20 between the two positions corresponds to a 180 ° rotation of the crank 21.
  • the pistons 14 are brought together one of the other so as to compress the cylindrical tube 3 and, simultaneously, the fluid is injected under high pressure at the interior of the tube 3 via the conduits 15.
  • the pusher 20 is in the position shown in FIG. 2, in which the contact surface of this pusher 20 is in support on the portion of the tube 3 located opposite the bypass 13 of imprint 11.
  • the jack 31 and the motor 33 are activated which causes the rotation and the translation in the direction of flow of the metal in the derivation 13, of the assembly constituted by the piston rod 32, the crank 21 and the pusher 20.
  • the pusher 20 moves during of the metal creep in the branch 13 between the first position in which this pusher 20 is parallel to the axis XX 'of the tube 3 and the second position in which said pusher 20 extends perpendicular to the axis YY 'of the tap 2 so as to orient the front surface 3a of the tap 2 perpendicular to the axis YY 'of said branch 13, as shown in FIG. 3.
  • the front surface 3a is in contact with the contact surface of the counter pusher 20 thereby avoiding the formation of folds or cracks in the fluxing metal in this derivation 13.
  • the creep of the metal in the branch 13 is controlled by the pusher 20 which exerts under the effect of the cylinder 31 a resistance or an antagonistic force to this creep during the movement of this pusher for allow the metal to flow evenly.
  • the axis ZZ 'of the piston rod 32 of the jack 31 passes through a point O located on the axis YY 'of the tap 2 and at middle of the distance between the center A1 of the surface of contact of the pusher 20 with the portion of the tube 3 before the creep of the metal and the center A2 of the surface of contact of said counter pusher 20 with the front surface 3a of the metal at the end of the creep of this metal in the bypass 13.
  • the projection O'A'1 on the XX 'axis of the tube 3 of the distance between the point O of intersection of the axis ZZ 'of the piston rod 32 and the axis YY' of the tap 2 and the center A1 of the contact surface of the pusher 20 with the portion of tube 3 before the creep of the metal is equal to the projection O'A'2 on said axis XX 'of the tube 3 of the distance between said point O of intersection and the center A2 of the contact surface of said counter-pusher 20 with the frontal surface of the metal at the end of the creep of this metal in derivation 13.
  • the rotation of the counter-pusher 20 orients gradually the front surface 3a of the metal perpendicular to the axis YY 'of the connection 2 during the creep of the metal in the bypass 13.
  • the rotation of the pusher 20 is performed at the start of the translational movement of this counter pusher 20 to orient the front surface of metal perpendicular to the axis YY 'of the tap 2 upon initiation of the creep of this metal in the bypass 13.
  • the rotation of the counter pusher 20 is carried out at the end of the creep of the metal in branch 13 to orient the frontal surface 3a of metal perpendicular to the axis of the branch 13 to the end of the creep of this metal.
  • the counter pusher 20 can be rotated for all the positions of it in between extreme positions, i.e. the first position at the start of the creep and the second position at the end of the creep of the metal in bypass 13.
  • the method according to the invention also applies when making a non-straight stitching.
  • the device according to the invention makes it possible to carry out a longer inclined tapping than with a counter pusher always oriented perpendicular to the axis the tube and avoid the risk of cracking or explosion of metal when initiating deformation in the case where the pusher is always oriented perpendicularly to the axis of this stitching.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
EP99403026A 1998-12-18 1999-12-03 Verfahren und Vorrichtung zur Herstellung einer geneigten Zweigleitung in einem metallischen Rohr durch Hydroformung Withdrawn EP1010480A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9816053 1998-12-18
FR9816053A FR2787357B1 (fr) 1998-12-18 1998-12-18 Procede et dispositif de realisation par hydroformage d'un piquage incline a partir d'un tube metallique

Publications (1)

Publication Number Publication Date
EP1010480A1 true EP1010480A1 (de) 2000-06-21

Family

ID=9534172

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99403026A Withdrawn EP1010480A1 (de) 1998-12-18 1999-12-03 Verfahren und Vorrichtung zur Herstellung einer geneigten Zweigleitung in einem metallischen Rohr durch Hydroformung

Country Status (5)

Country Link
US (1) US6202460B1 (de)
EP (1) EP1010480A1 (de)
BR (1) BR9905901A (de)
CA (1) CA2292823A1 (de)
FR (1) FR2787357B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1579931A1 (de) * 2004-03-24 2005-09-28 C.R.F. Società Consortile per Azioni Verfahren und Vorrichtung zum Innenhochdruckumformen eines Hohlkörpers mit mindestens einer Abzweigung
CN103920789A (zh) * 2014-05-06 2014-07-16 哈尔滨工业大学 一种弯头三通管内高压成形模具及方法
CN104084469A (zh) * 2014-06-25 2014-10-08 温州蓝天管件阀门有限公司 一种三通管液压成型装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19928873B4 (de) * 1999-06-24 2004-08-12 Benteler Ag Verfahren und Vorrichtung zum Innendruckformen eines hohlen metallischen Werkstücks aus Aluminium oder einer Aluminiumlegierung
US6497128B1 (en) * 2001-03-16 2002-12-24 Dana Corporation Method of hydroforming a fuel rail for a vehicular fuel delivery system
DE10121787C1 (de) * 2001-05-04 2002-07-11 Daimler Chrysler Ag Verfahren und Vorrichtung zur Herstellung von Nebenformelementen
EP1340558A1 (de) * 2002-03-01 2003-09-03 Alcan Technology & Management AG Verfahren zum Umformen eines gebogenen Ein-oder Mehrkammerhohlprofils mittels Innenhochdruck
DE502005000738D1 (de) * 2004-02-03 2007-07-05 Nussbaum & Co Ag R Armatur
US7337641B1 (en) * 2006-10-30 2008-03-04 Gm Global Technology Operations, Inc. Hydroformed tubular members and method of hydroforming tubular members for vehicles
FR2916833B1 (fr) * 2007-05-29 2013-05-17 Snecma Rampe d'alimentation en carburant d'une chambre de combustion de turbomachine et son procede de fabrication.
CN102641937B (zh) * 2012-02-29 2014-08-27 佛山市顺德区燉煌五金塑料实业有限公司 带支撑模的y型三通成型设备
TWI504451B (zh) 2012-09-14 2015-10-21 Ind Tech Res Inst 管件的製法及其液壓成型模具
RU2528927C1 (ru) * 2013-03-28 2014-09-20 ФГБОУ ВПО "Воронежский Государственный Университет Инженерных Технологий" Способ формообразования неравнопроходных тройников из трубной заготовки
JP6573275B2 (ja) * 2015-08-28 2019-09-11 株式会社三五 ハイドロフォーミング加工装置
USD824341S1 (en) * 2016-07-25 2018-07-31 General Electric Company Cable connector
CN107695624B (zh) * 2017-09-29 2019-07-19 北京科勒有限公司 卫浴五金壳体的制作方法
RU2696120C1 (ru) * 2018-12-10 2019-07-31 Акционерное общество "Новые Фитинговые Технологии" Способ изготовления тройника
RU2745218C1 (ru) * 2020-09-15 2021-03-22 Акционерное общество "Трубодетель" (АО "Трубодеталь") Способ изготовления тройников
CN117548556B (zh) * 2024-01-12 2024-04-09 南昌航空大学 一种周向弯曲斜三通管内高压成形装置及其成形方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3216092A (en) * 1960-10-27 1965-11-09 Alfred C Arbogast Method for making wrought y-fittings from a tubular work piece
FR2535987A1 (fr) * 1982-11-16 1984-05-18 Vallourec Procede de formage d'un ou plusieurs bulbes, par deformation plastique en expansion de la paroi d'un troncon de tube
EP0497438A1 (de) * 1991-01-28 1992-08-05 MANNESMANN Aktiengesellschaft Verfahren und Vorrichtung zum hydraulischen Aufweiten von rohrförmigen Hohlprofilen
EP0633075A1 (de) * 1993-07-08 1995-01-11 Subsana-Anstalt Verfahren und Vorrichtung zur innendruckgestützten Umformung von metallischen Hohlprofilen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2238037A (en) * 1936-02-14 1941-04-15 Jr Edward S Cornell Method and means of producing wholly integral cold wrought t's and like fittings
US3681960A (en) * 1969-04-22 1972-08-08 Furubayashi Welding Pipe Fitt Method and apparatus for forming valve bodies
US4051704A (en) * 1975-11-19 1977-10-04 Senkichiro Kimura Method for the manufacture of an ornamental head lug of the single unit type for use in bicycles
DE19530056B4 (de) * 1995-08-16 2004-09-09 Schuler Hydroforming Gmbh & Co. Kg Verfahren und Vorrichtung zum Herstellen T-förmiger bzw. mindestens eine domartige Abzweigung aufweisender Hohlkörper
US6029487A (en) * 1998-08-24 2000-02-29 Avmat Kydroforming Ltd. System and method for manufacturing tubular products from tubular workpieces

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3216092A (en) * 1960-10-27 1965-11-09 Alfred C Arbogast Method for making wrought y-fittings from a tubular work piece
FR2535987A1 (fr) * 1982-11-16 1984-05-18 Vallourec Procede de formage d'un ou plusieurs bulbes, par deformation plastique en expansion de la paroi d'un troncon de tube
EP0497438A1 (de) * 1991-01-28 1992-08-05 MANNESMANN Aktiengesellschaft Verfahren und Vorrichtung zum hydraulischen Aufweiten von rohrförmigen Hohlprofilen
EP0633075A1 (de) * 1993-07-08 1995-01-11 Subsana-Anstalt Verfahren und Vorrichtung zur innendruckgestützten Umformung von metallischen Hohlprofilen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1579931A1 (de) * 2004-03-24 2005-09-28 C.R.F. Società Consortile per Azioni Verfahren und Vorrichtung zum Innenhochdruckumformen eines Hohlkörpers mit mindestens einer Abzweigung
CN103920789A (zh) * 2014-05-06 2014-07-16 哈尔滨工业大学 一种弯头三通管内高压成形模具及方法
CN104084469A (zh) * 2014-06-25 2014-10-08 温州蓝天管件阀门有限公司 一种三通管液压成型装置
CN104084469B (zh) * 2014-06-25 2016-02-03 温州蓝天管件阀门有限公司 一种三通管液压成型装置

Also Published As

Publication number Publication date
BR9905901A (pt) 2000-09-05
FR2787357B1 (fr) 2001-03-16
CA2292823A1 (fr) 2000-06-18
FR2787357A1 (fr) 2000-06-23
US6202460B1 (en) 2001-03-20

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