[go: up one dir, main page]

WO2007018499A1 - Appareil et procédé pour former des pièce de forme - Google Patents

Appareil et procédé pour former des pièce de forme Download PDF

Info

Publication number
WO2007018499A1
WO2007018499A1 PCT/US2005/026482 US2005026482W WO2007018499A1 WO 2007018499 A1 WO2007018499 A1 WO 2007018499A1 US 2005026482 W US2005026482 W US 2005026482W WO 2007018499 A1 WO2007018499 A1 WO 2007018499A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
pressure
liquid
dies
bending
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.)
Ceased
Application number
PCT/US2005/026482
Other languages
English (en)
Inventor
Gary A. Webb
James H. Brown
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.)
Aquaform Inc
Original Assignee
Aquaform Inc
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 Aquaform Inc filed Critical Aquaform Inc
Priority to MX2007016408A priority Critical patent/MX2007016408A/es
Priority to EP05775704A priority patent/EP1907147A4/fr
Priority to CA002616550A priority patent/CA2616550A1/fr
Priority to PCT/US2005/026482 priority patent/WO2007018499A1/fr
Priority to JP2008523850A priority patent/JP2009502511A/ja
Publication of WO2007018499A1 publication Critical patent/WO2007018499A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B21D9/00—Bending tubes using mandrels or the like
    • B21D9/15—Bending tubes using mandrels or the like using filling material of indefinite shape, e.g. sand, plastic material
    • 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
    • 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
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies

Definitions

  • the present invention relates generally to the field of forming tubular members into shaped parts using hydraulic pressure and, more particularly, to a method and apparatus for forming from a tube a shaped part having at least one bend and a substantially larger cross section in at least a portion of the tube between the bend or bends and an end or ends of the tube
  • U S Patent No 2,892,254 to Garvin discloses a hydraulic press for shaping metal parts Hydraulic presses such as that disclosed by the Garvin Patent generally have two opposing dies that close to form a cavity The cavity defines the desired resultant shape of the part
  • a tube is placed in the cavity between the dies of a hydraulic press The dies close and the ends of the tube are sealed
  • the tube is filled with liquid which is then pressurized to expand the tube until it conforms to the shape of the cavity defined by the dies of the hydraulic press In this manner, the tube is expanded to form the desired shaped part
  • the expansion of a tube is limited because as the tube is expanded the wall thickness of the expanded portion is progressively thinned
  • frictional constraints typically limit expansion of the cross section to fifty percent.
  • the tube first must be placed in a bender
  • tubes having wall thicknesses of about 0.065 inches and greater having wall thicknesses of about 0.065 inches and greater.
  • the apparatus includes a hydraulic
  • portion can be enlarged by as much as sixty- five percent of the original cross section while
  • Fig 1 is a partial perspective view of a portion of the preferred embodiment of the
  • FIG. 2 is a partial perspective view of a portion of the preferred embodiment of the
  • FIG. 3 is a side elevational view of the preferred embodiment of the present invention.
  • Fig. 4 is a side elevational view of the preferred embodiment of the present invention.
  • Fig. 5 is a cross sectional view of the preferred embodiment of the present invention.
  • the present invention is directed towards an apparatus and method for forming from a
  • tube a shaped part having a bend and a substantially larger cross section in at least a portion
  • the tube may be comprised of any material that permits the formation of a bend and a substantially larger cross section in at least a portion of the tube between the bend and an end.
  • the tube is comprised of metal.
  • the present invention works especially well with
  • the wall thickness of the tube depends upon the diameter of the tube and the type of
  • the present invention works best for wall thicknesses in the range of
  • the present invention works best for wall thicknesses of 0.049
  • the tube is expanded with any type of liquid that provides for the expansion of the
  • the liquid may comprise water.
  • the liquid may comprise water.
  • liquid may comprise a mixture or may include additives.
  • the liquid may include
  • the liquid is comprised of approximately 95%
  • water and 5% additives including a lubricant and a rust inhibitor.
  • the present invention uses a hydraulic press for bending the tube and forming the
  • the hydraulic press has first and second dies that move between a first or open position and a second or closed position. In the first or open position, the dies are spaced
  • the dies are configured such that the first die is above the second die.
  • both dies move towards each other from the first or open position to
  • the upper die moves vertically downward to engage the lower die, thereby
  • the dies are configured such that either the first die or
  • the second die move.
  • the first die travels vertically upward towards the second
  • die or both dies move towards one another to enclose on the tube. Additionally, the dies may
  • the dies travel in a horizontal path as opposed to a vertical path.
  • the dies have matching or corresponding cavities that hold the tube. In this
  • the cavities define the desired shape of the
  • An assembly retains at least one end of the tube during the bending and expansion
  • the assembly is configured to follow the end of the tube as the tube is being bent.
  • the assembly maintains pressure on the end of the tube during the expansion
  • the assembly is pivotally
  • the assembly pivots or moves from a first or downward position to a second or
  • the assembly begins in the first or downward position.
  • the tube is placed
  • the tube is received by a bore in the assembly, which retains the end of the tube.
  • the assembly pivots towards the second or upward position in order to ride on and follow the end of the tube.
  • the assembly pivots about a pin
  • the assembly pivots about the pin to the second or upward
  • the assembly includes a cylinder that pushes on the end of the tube while the tube is
  • the cylinder exerts force on a locking block, which retains the end of
  • the cylinder is a hydraulic cylinder.
  • the cylinder is a hydraulic cylinder.
  • the cylinder can be electric or pneumatic.
  • the cylinder exerts a specific force on the tube depending upon the type of material
  • the present invention includes a sealing mechanism to seal the ends of the tube.
  • sealing mechanism extends over or into the ends of the tube, thereby sealing the tube and
  • seal cone having tapered walls that is substantially similar to that disclosed in
  • the sealing mechanism is preferably composed of a hardened steel such as D2 Steel, which is a hardened
  • the tube is placed between the upper and lower dies of the
  • the tube is bent, and the liquid inside the tube is pressurized by the fluid control device.
  • the assembly presses on the ends of the tube during
  • the pressurized liquid serves as a mandrel to prevent the tube from
  • the liquid is pressurized to a specific pressure or pressure range depending upon
  • the liquid initially is pressurized to
  • control device to be within the pressure range of 3,000 to 60,000 pounds per square inch.
  • the pressurized liquid must be below the lesser of either a pressure
  • the bursting pressure, P burst is defined as:
  • the liquid initially is pressurized to be about 3,000 pounds per square
  • portion of the tube causes the cross section to expand by as much as sixty-five percent.
  • Fig. 1 is a perspective view of the rotating hydro forming apparatus 10.
  • the present invention is used in connection with a hydraulic
  • the hydraulic press 12 has first and second dies 16, 18
  • the dies 16, 18 are spaced
  • dies 16, 18 are disposed in parallel spaced relation to
  • First die 16 includes a cavity 20 that holds the tube 14 and defines a portion of the
  • the cavities define the desired shape of
  • An assembly 22 is pivotally mounted to one of the dies 16, 18. Preferably, assembly
  • assembly 22 is mounted to the first or lower die 16.
  • assembly 22 may be mounted to the
  • Assembly 22 is configured to follow the end of the tube 14 as the
  • Assembly 22 is shown in a first or downward position in Figs. 1 and 3. In this
  • the tube 14 may be placed between the dies 16, 18 such that an end of the tube is
  • the tube 14 is received by a bore 24, which retains the
  • a cylinder 28 pushes on the end of the tube 14 while the tube is being bent. As shown
  • cylinder 28 exerts force on locking block 30 via a piston rod 32, which
  • cylinder 28 forces the tube into the cavity 20. Additionally, the force exerted by cylinder 28
  • cylinder 28 may be hydraulic or pneumatic.
  • cylinder 28 is a hydraulic cylinder.
  • the cylinder 28 exerts a specific force on the tube 14 depending upon the type of
  • dies 16, 18 are configured such that either first die 16 or second die 18 move.
  • first die 16 or second die 18 move.
  • first die 16 may travel vertically upward towards second die 18, or both dies 16, 18 may move
  • dies 16, 18 may be configured
  • the dies 16, 18 bend the tube 14 as the dies move into the second or closed position.
  • assembly 22 pivots in a manner necessary to follow the end of the
  • assembly 22 pivots about a pin 26, which is aligned with bore 24, as shown
  • Assembly 22 pivots about pin 26 to a second or upward position, as shown in Figs.
  • assembly 22 retains the ends of tube 14 as it is being bent.
  • a sealing mechanism 34 is configured to seal the ends of the
  • the sealing mechanism extends into the ends of the tube, thereby sealing the tube and
  • mechanism 34 is a seal cone having tapered walls that is substantially similar to that disclosed
  • sealing mechanism 34 is preferably composed of a hardened steel such as D2 Steel, which is a
  • the tube 14 is placed between the dies 16, 18 of the hydraulic
  • the assembly 22 presses on the ends of the tube 14 during the bending process to feed tube material into the expanding portion between the bend and the end to
  • the tube 14 may be comprised of any material having a yield point to permit the
  • the tube is comprised of metal.
  • the present invention works especially well with common steel grades, such as SAE 1008 or 1018.
  • the present invention also may be used with difficult-to-form metals such as Stainless Steel 304L
  • the pressurized liquid serves as a mandrel to prevent the tube 14 from
  • the liquid is pressurized to a specific pressure or pressure range depending upon
  • the liquid initially is
  • fluid control device 36 to be within a range above a yield point of the tube and below a
  • the liquid is increased to about 60,000 pounds per square inch to cause the tube material to
  • portion of the tube causes the cross section to expand by as much as sixty- five percent.
  • the tube 14 may be expanded with any type of liquid that provides for the expansion
  • the liquid may comprise water.
  • the liquid may comprise water.
  • the liquid may comprise a mixture or may include additives.
  • the liquid may comprise a mixture or may include additives.
  • the liquid may be any suitable liquid.
  • the liquid may be any suitable liquid.
  • the specific applications may require.
  • the specific applications may require.
  • the specific applications may require.
  • liquid is comprised of approximately 95% water and 5% additives, including a lubricant and a

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

La présente invention concerne un appareil et un procédé pour former une pièce de forme à partir d’un tube (14) comprenant une extrémité et au moins une courbure, la partie formée comprenant une partie agrandie entre la courbure et l’extrémité. La partie formée est constituée en appliquant un fluide sous pression dans le tube (14) tout en maintenant une pression sur l’extrémité du tube afin de provoquer l’expansion du tube entre la courbure et l’extrémité. La partie formée est façonnée sur une presse hydraulique (10) comprenant des matrices hautes (18) et basses (16). L’appareil (10) inclut au moins un assemblage latéral (22) fixé en rotation sur la matrice inférieure (16) avec un vérin (28) permettant d’appliquer la pression au moins à une extrémité du tube (14). L’appareil inclut également des joints (34) afin de rendre étanches les extrémités du tube (14) et un dispositif de commande du fluide (36) pour pressuriser le fluide dans le tube.
PCT/US2005/026482 2005-07-26 2005-07-26 Appareil et procédé pour former des pièce de forme Ceased WO2007018499A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
MX2007016408A MX2007016408A (es) 2005-07-26 2005-07-26 Metodo y aparato para crear partes conformadas.
EP05775704A EP1907147A4 (fr) 2005-07-26 2005-07-26 Appareil et procédé pour former des pièces de forme
CA002616550A CA2616550A1 (fr) 2005-07-26 2005-07-26 Appareil et procede pour former des piece de forme
PCT/US2005/026482 WO2007018499A1 (fr) 2005-07-26 2005-07-26 Appareil et procédé pour former des pièce de forme
JP2008523850A JP2009502511A (ja) 2005-07-26 2005-07-26 成形部品形成装置および方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2005/026482 WO2007018499A1 (fr) 2005-07-26 2005-07-26 Appareil et procédé pour former des pièce de forme

Publications (1)

Publication Number Publication Date
WO2007018499A1 true WO2007018499A1 (fr) 2007-02-15

Family

ID=37727596

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/026482 Ceased WO2007018499A1 (fr) 2005-07-26 2005-07-26 Appareil et procédé pour former des pièce de forme

Country Status (5)

Country Link
EP (1) EP1907147A4 (fr)
JP (1) JP2009502511A (fr)
CA (1) CA2616550A1 (fr)
MX (1) MX2007016408A (fr)
WO (1) WO2007018499A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20080872A1 (it) * 2008-11-26 2010-05-27 Pst Engineering S R L Dispositivo per la piegatura di tubi
EP2090382A3 (fr) * 2008-02-11 2010-06-23 Officine Metallurgiche Piemontesi S.p.A. Procédé de pliage à froid des tuyaux et similaire
EP2746155A1 (fr) * 2012-12-21 2014-06-25 Bell Helicopter Textron Inc. Train d'atterrissage à patins d'hélicoptère
CN109304388A (zh) * 2017-07-28 2019-02-05 上海宝钢高新技术零部件有限公司 一种液压成形四弯零件模内压弯装置和方法
DE102019100582A1 (de) * 2019-01-11 2020-07-16 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung zum Innenhochdruckumformen sowie Verfahren

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5396786A (en) * 1993-03-15 1995-03-14 Mueller Industries, Inc. Machine and method for manufacturing crossover fittings
DE4428564A1 (de) 1994-08-12 1995-06-22 Daimler Benz Ag Verfahren und Vorrichtung für das Innenhochdruckumformen von geknickten Hohlteilen
US5979201A (en) * 1996-08-26 1999-11-09 Cosma International Inc. Hydroforming die assembly for pinch-free tube forming
US6502822B1 (en) * 1997-05-15 2003-01-07 Aquaform, Inc. Apparatus and method for creating a seal on an inner wall of a tube for hydroforming

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6006567A (en) * 1997-05-15 1999-12-28 Aquaform Inc Apparatus and method for hydroforming
JP4358367B2 (ja) * 1998-10-16 2009-11-04 本田技研工業株式会社 車両用車体フレームの構造及び製法
JP3719928B2 (ja) * 2000-11-24 2005-11-24 新日本製鐵株式会社 バルジ加工方法
JP2003126923A (ja) * 2001-10-24 2003-05-08 Honda Motor Co Ltd 管状部材の成形方法
US7251972B2 (en) * 2001-11-21 2007-08-07 Wilhelm Schulz Gmbh Method and device for reshaping tubes
JP2004044747A (ja) * 2002-07-15 2004-02-12 Denso Corp 分岐管および分岐管の製造方法
JP2004114078A (ja) * 2002-09-25 2004-04-15 Suzuki Motor Corp 張り出し形状を備えたハイドロフォーム成形部品の製造方法
DE10306161B4 (de) * 2003-02-14 2005-02-17 Daimlerchrysler Ag Einrichtung zum Innenhochdruckumformen von Werkstücken
JP4133465B2 (ja) * 2003-03-10 2008-08-13 新日本製鐵株式会社 ハイドロフォーム加工方法
JP3839787B2 (ja) * 2003-05-14 2006-11-01 アイシン高丘株式会社 二重壁中空金属部品の製造方法
JP4259194B2 (ja) * 2003-06-11 2009-04-30 日産自動車株式会社 液圧成形方法および液圧成形装置
JP2005081432A (ja) * 2003-09-11 2005-03-31 Toyo Valve Co Ltd 弁ハウジングの製造方法及び弁の製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5396786A (en) * 1993-03-15 1995-03-14 Mueller Industries, Inc. Machine and method for manufacturing crossover fittings
DE4428564A1 (de) 1994-08-12 1995-06-22 Daimler Benz Ag Verfahren und Vorrichtung für das Innenhochdruckumformen von geknickten Hohlteilen
US5979201A (en) * 1996-08-26 1999-11-09 Cosma International Inc. Hydroforming die assembly for pinch-free tube forming
US6502822B1 (en) * 1997-05-15 2003-01-07 Aquaform, Inc. Apparatus and method for creating a seal on an inner wall of a tube for hydroforming

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1907147A4 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2090382A3 (fr) * 2008-02-11 2010-06-23 Officine Metallurgiche Piemontesi S.p.A. Procédé de pliage à froid des tuyaux et similaire
ITTO20080872A1 (it) * 2008-11-26 2010-05-27 Pst Engineering S R L Dispositivo per la piegatura di tubi
EP2746155A1 (fr) * 2012-12-21 2014-06-25 Bell Helicopter Textron Inc. Train d'atterrissage à patins d'hélicoptère
US9994308B2 (en) 2012-12-21 2018-06-12 Bell Helicopter Textron Inc. Helicopter skid landing gear
CN109304388A (zh) * 2017-07-28 2019-02-05 上海宝钢高新技术零部件有限公司 一种液压成形四弯零件模内压弯装置和方法
DE102019100582A1 (de) * 2019-01-11 2020-07-16 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung zum Innenhochdruckumformen sowie Verfahren

Also Published As

Publication number Publication date
MX2007016408A (es) 2008-03-10
CA2616550A1 (fr) 2007-02-15
EP1907147A4 (fr) 2009-04-29
EP1907147A1 (fr) 2008-04-09
JP2009502511A (ja) 2009-01-29

Similar Documents

Publication Publication Date Title
US5481892A (en) Apparatus and method for forming a tubular member
EP0588528B1 (fr) Dispositif et procédé pour former et percer hydrauliquement un cadre tubulaire
CN1089041C (zh) 液压成型的弯角管件的制造方法和装置
EP1210189B1 (fr) Elements obtenus par hydroformage et procedes de fabrication
EP0693981B1 (fr) Dispositif et procede de formage par etirage de profiles metalliques creux et allonges
EP1161316B1 (fr) Hydroformage par compression
Ahmed et al. Estimation of machine parameters for hydraulic bulge forming of tubular components
EA000657B1 (ru) Штамп для гидроформинга и способ гидроформинга металлической трубы
US5802899A (en) Method for internal high-pressure deforming of hollow offset shafts made of cold-deformable metal
WO2002032596A9 (fr) Appareil et procede d'hydroformage de piece tubulaire
EP0800874B1 (fr) Methode et appareil de formage par haute pression interne
EP1100637B1 (fr) Dispositif et procede destines au formage par deploiement
EP1907147A1 (fr) Appareil et procédé pour former des pièces de forme
US7096700B2 (en) Method for performing a hydroforming operation
US7284403B2 (en) Apparatus and method for performing a hydroforming process
KR20080036589A (ko) 성형 부품을 형성하기 위한 방법 및 장치
WO1994020234A1 (fr) Procede de formage d'elements tubulaires
EP3856430B1 (fr) Profilage à axes multiples de cylindre à diamètre étagé
Balendra et al. Pressured-assisted injection forging of thick-walled tubes
RU2094151C1 (ru) Способ изготовления гибкой крутоизогнутых патрубков
US9186714B1 (en) Process for making a stamped tubular form with integral bracket and products made by the process
AU752981B2 (en) Apparatus and method for forming and hydropiercing a tubular frame member
SU1761353A1 (ru) Способ изготовлени полых изделий из сварных трубных заготовок
RU2172221C2 (ru) Гидравлический пресс для формообразования крутоизогнутых патрубков

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2005775704

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 9342/DELNP/2007

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: MX/a/2007/016408

Country of ref document: MX

WWE Wipo information: entry into national phase

Ref document number: 2008523850

Country of ref document: JP

ENP Entry into the national phase

Ref document number: 2616550

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 1020087001988

Country of ref document: KR

NENP Non-entry into the national phase

Ref country code: DE