WO2001081021A2 - Hydroforming a tubular structure of varying diameter from a tubular blank using electromagnetic pulse welding - Google Patents
Hydroforming a tubular structure of varying diameter from a tubular blank using electromagnetic pulse welding Download PDFInfo
- Publication number
- WO2001081021A2 WO2001081021A2 PCT/CA2001/000552 CA0100552W WO0181021A2 WO 2001081021 A2 WO2001081021 A2 WO 2001081021A2 CA 0100552 W CA0100552 W CA 0100552W WO 0181021 A2 WO0181021 A2 WO 0181021A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tubular member
- tubular
- welded
- diameter
- blank
- Prior art date
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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
-
- 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
- B21C37/154—Making multi-wall 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
- 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
- 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
- B21D26/053—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 characterised by the material of the blanks
-
- 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
- B21D26/14—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces applying magnetic forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K13/00—Welding by high-frequency current heating
- B23K13/01—Welding by high-frequency current heating by induction heating
- B23K13/02—Seam welding
- B23K13/025—Seam welding for tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/06—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of high energy impulses, e.g. magnetic energy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49805—Shaping by direct application of fluent pressure
Definitions
- the present invention generally relates to the forming of tubular structural members by internal pressurization of the member, and more particularly to such method as applied to a tubular structural member with a varying diameter.
- Hydroforming methods are commonly known as a means for shaping a tubular metal blank having a circular cross section into a tubular component having a predetermined desired configuration.
- a typical hydroforming operation involves the placement of a tubular metal blank having a circular, uniform cross section into a die cavity of a hydroforming assembly and providing high pressure fluid to the interior of the blank to cause the blank to expand outwardly into conformity with the surfaces defining the die cavity.
- the opposite longitudinal ends of the tubular metal blank are sealed by hydraulic rams, and high pressure hydroforming fluid is provided through a port formed in at least one of the rams to expand the tubular blank.
- the cross-sectional shape of the resultant structural member is typically appreciably different from the cross-sectional shape of the tube blank. For example, box shaped or quadrilateral cross sections are commonly formed from the cylindrical tube blanks.
- the forming is essentially limited to pressurizing the tube blank to force it to conform to an enclosing die, and produces little change in the length of a part.
- the length of the formed part is essentially equal to the length of the tube blank.
- Hydroforming will generally increase perimeter and decrease wall thickness. It is appreciated that a variant form of low-pressure hydroforming utilizes extremely high pressure and produces parts shorter than the tube blank to provide an increase in perimeter with little or no associated decrease in wall thickness. This requires a longitudinal loading of the blank simultaneous with the pressurization of the blank.
- two tube blanks of varying diameter are joined by first forming a transition region between them so that the two adjacent ends meet.
- transition regions consist of either a tapered or a flared end being formed on the end of either or both blanks, which is formed using conventional tube forming means, such as with tube expanders.
- an entirely separate piece of tubing with a truncated conical shape can be used as a transition blank member between two blanks of different diameters.
- the diameter of each end of the transition member corresponds to the tube blank end that it interfaces with.
- conventional welding is used to join the blanks in end-to-end abutting relation.
- the resultant tube blank is then hydroformed.
- the die into which the blank is placed has a generally corresponding transition perimeter to that of the tube blank so that the expansion of the perimeter is limited to approximately five percent in any one location along a longitudinal axis of the blank.
- the present invention provides a method of hydroforming a tubular part which comprises providing a first tubular member having a first diameter, providing a second tubular member having a second diameter which is greater than the first diameter of the first tubular member, positioning the first and second tubular members so that a first portion of the first tubular member is telescopically disposed within a second portion of the second tubular member so that the first and second portions are disposed in axially overlapping relation with one another, applying an electromagnetic pulse of sufficient magnitude in a vicinity of the overlapping portions to rapidly force the first and second portions into peripheral welded engagement with one another so as to form a welded tubular structure, placing the welded tubular structure into a hydroforming die assembly, and providing fluid pressure to the interior thereof so that it expands outwardly into conformity with the die surfaces of the hydroforming die assembly.
- the electromagnet pulse can be applied either from the exterior of the tubular. assembly, in which case the second outer tubular member is forced to move inwardly and into welded contact with the first tubular member, or the electromagnetic pulse can be applied from the interior of the tubular assembly, in which case the first inner tubular member is forced to move outwardly and into welded contact with the second tubular member.
- each of the first and second members can be moved towards the other.
- FIG. 1 is a longitudinal cross-section view of one embodiment of the present invention, where two tubular blanks of different diameters are to be electromagnetically welded by the welding device placed on the outside of the tube blank with the larger diameter;
- FIG. 2 is a longitudinal cross-section view of a compound tube blank formed by the assembly shown in FIG. 1 ;
- FIG. 3 is a longitudinal cross-section view of another embodiment of the present invention, where two tubular blanks of different diameters are to be electromagnetically welded by the welding device placed on the inside of the tube blank with the smaller diameter;
- FIG. 4 is a longitudinal cross-section view of a compound tube blank formed by the assembly shown in FIG. 3;
- FIG. 5 is a longitudinal cross-section view of a compound tubular blank member formed from a combination of the electromagnetic welding operations of FIGS. 1 and 3, and a schematic depiction of the hydroforming die cavity into which the tubular blank member is placed;
- FIG. 6 shows the hydroformed structural member of the tubular blank of FIG. 5.
- Electromagnetic pulse welding was developed from a technique in which a metal workpiece is formed using a magnetic pulse, known as pulsed magnetic forming (PMF).
- PMF is a process in which a metal workpiece or a portion thereof is put into a rapid motion by a pulsed magnetic field which causes the workpiece to deform.
- One advantage of the PMF process is in that the specific heat in this process is minimal and consequently there is no or very little heating of the workpiece.
- the PMF process uses a bank capacitor, a forming coil and often a field shaper for creating an intense magnetic field.
- the very intense magnetic field required for the PMF process is created by a rapid discharge of electric energy, stored in the bank capacitor, into the forming coil.
- the resulting eddy currents that are induced in the workpiece yield magnetic repulsion between the workpiece and the forming coil, and since the forming coil is firmly supported in its position, the repulsion causes the workpiece to deform.
- the forming magnetic pulse is made to be very short. In most PMF applications, the pulses have a duration between about 10 to about 250 mu.sec. (duration of the first wave of the discharging current).
- Electromagnetic pulse welding is achieved by causing a surface of a first of the two workpieces to move rapidly towards a surface of the other workpiece by means of a pulsed magnetic force, and controlling the conditions such that after the respective surface of the first workpiece impacts with the respective surface of the second workpiece, the two surfaces become joined or welded to one another.
- the magnetic energy may be controlled such that the speed of the moving workpiece imparts a kinetic energy to this workpiece, prior to impact with the second workpiece, which is larger than the sum of the plastic deformation energy of the first, moving workpiece and of the elastic deformation energy of the second, still workpiece, after the impact.
- electromagetic pulse welding With electromagnetic pulse welding, the end portion of a larger blank is contracted and brought into contact with the outside diameter of a smaller blank by plastically deforming the end portion of the larger blank. Or conversely, the end portion of a smaller blank is expanded and brought into contact with the inside diameter of a larger blank by plastically deforming the end portion of the smaller blank. Upon impact, welding of the two surfaces occurs. The plastic deformation is caused by the force imparted to the blank end by the electromagnet, which occurs as part of the electromagnetic welding process. Therefore, electromagetic pulse welding eliminates the need to taper or flare the ends of the tube blanks using conventional tube expanders, or to provide a conical shape tube blank between two blanks with different diameters, to form a transition region connecting them.
- tubular blank 30 has a diameter larger than tubular blank 32.
- the wall thicknesses of blank 30 and 32, t2 and tl, respectively, may differ as well.
- blank 32 is telescopically disposed within blank 30, creating overlapping portion 36 on blank 32 and overlapping portion 34 on blank 30, which are to be welded to one another.
- the electromagnetic pulse device generally designated as 20, comprises a forming coil 22 consisting of a plurality of windings, separated from one another by an insulating material 24.
- the device also may comprise a field shaper 26 to direct the field to the welding region 34 and 36.
- a field shaper 26 to direct the field to the welding region 34 and 36.
- An insert 38 which has a first portion 40 having a diameter equal to the internal diameter of tubular blank 30, and has a second portion 42 which has a diameter equal to the internal diameter of tubular blank 32.
- the insert 38 has several functions: one of which is to ensure proper mutual placing of the two tubular blanks; another being to ensure that upon application of a pulsed magnetic force, only portion 34 of tubular blank 30 will move and constrict; and a further being to support portion 36 to ensure that welding between the two portions will occur.
- the insert 38 should be made from a suitable material that will not itself be welded to the tubular portion 36 when impacted by tubular portion 34.
- a suitable material for insert 38 is, therefore, wood, hard plastic, thermoset plastic, ceramic, or a sufficiently hard metal (preferably steel) having a high enough yielding point above tubular blanks 30, 32 such that the insert 38 will not significantly yield upon impact of tubular portion 34.
- Support of the internal walls of a tubular blank during impact by an external tubular blank may also be achieved by a variety of other means. These include, for example, filling the entire cylinder with a non-compressible liquid such as water; introducing into the tube a magnetic liquid such as mercury, oil with suspended metal particles, etc., and then applying a constant magnetic field prior to the PMF so as to concentrate the magnetic liquid at a portion where the support is required; by means of ice frozen at a respective portion; etc.
- Such solutions of support are required, for example, where the internal cylinder is long and it is thus not possible to introduce an insert such as that shown in FIG. 1.
- the resultant blank 44 produced from the assembly of FIG. 1, is shown in FIG. 2.
- weld 46 was produced by electromagnetic pulse welding to join blank 32 and 30. It will be understood to those skilled in the art that the above procedure can be repeated from either end of blank 44 to attach a third blank. The procedure can then be performed again on either end of this three piece blank to attach a fourth blank, and so on. The resultant tubular blank can then be placed in a die for hydroforming, as will be described shortly.
- tubular blank 52 is telescopically disposed within tubular blank 54, creating overlapped regions 56 and 58, respectively, that are to be electromagnetically welded together.
- the electromagnetic pulse device 50 is placed on the inside of tubular blank 52, rather than on the outside of the larger diameter blank as in FIG. 1. This way, during the application of the pulsed electromagnetic force, portion 56 moves rapidly outward towards portion 58 and upon impact welds therewith.
- insert 60 is placed on the outside of blank 54.
- Blank 60 contains a region 62 that has a diameter equal to the outside diameter of tubular blank 54, and a region 64 equal to the outside diameter of tubular blank 52.
- the purpose of insert 60 is the same as that described in the embodiment of FIG. 1.
- the electromagnetic pulse device as in FIG. 1, comprises a forming coil 72 consisting of a plurality of windings, separated from one another by an insulating material 74.
- the device also may comprise a field shaper 76 to direct the field to the welding region 56 and 58.
- the resultant tubular blank 80 produced from the assembly of FIG. 3, is shown in FIG. 4.
- weld 82 was produced by electromagnetic pulse welding to join blank 54 and 52. It will be understood to those skilled in the art that the above procedure, as in the embodiment of FIG. 2, can be repeated from either end of blank 80 to attach a third blank, and a fourth blank, etc.
- the resultant blank may consist of a combination of the two embodiments shown in FIG. 2 and 4. That is, two blanks may be joined by the embodiment of FIG. 1, where the outside portion of the blank with a larger diameter is forced inward. This resultant blank can then be joined to a third tubular blank using the embodiment of FIG. 3, where the inside portion of the blank with smaller diameter is forced outward. This resultant blank can then be joined to a fourth blank, by either embodiment, and so on. Such a tubular blank combination 90 is depicted in FIG. 5.
- a tube blank manufactured in accordance with FIG. 1, or FIG. 3, or some combination thereof is then hydroformed.
- the tube blank 90 is placed in a die 94 for hydroforming.
- the compound tube blank 90 has been tailored so that its outer configuration corresponds more closely to the shape of the die cavity 98 of the die 94 in comparison with a conventional uniform cross- sectioned blank.
- the larger volume portions (and cross-sectional areas) of the die cavity 98 are generally aligned with the larger diameter portions of the compound blank, and the smaller portions of the die cavity 98 are generally aligned with the narrower portions of the compound blank.
- the blank 90 is positioned in a hydroforming machine between a first die section 94 and a cooperating die section 96.
- These cooperating die sections, 94, 96 have respective die surfaces 95, 97 that, when moved together, define the longitudinal die cavity 98.
- the open ends 99, 100 of the tubular blank 90 are engaged and sealed by conventional hydroforming rams.
- the cooperating die sections 94, 96 are pressed together to enclose the blank 90 in the die cavity 98, and the blank is filled with hydroforming fluid.
- the pressure of the hydraulic fluid inside the tube blank 90 is increased to a sufficient level to force blank 90 to expand into conformity with the surfaces 95, 97 defining the die cavity 98.
- the rams engaging the opposite ends 99, 100 of tube 90 are forced inwardly towards one another to maintain the wall thickness of tube 90 with a predetermined range (about ⁇ 10% of the original blank).
- a desired tubular structural member 105 is formed.
- the structural member is then depressurized and drained of hydroforming fluid.
- the die sections 94, 96 are separated, permitting the formed tubular structural member to be removed from the die 98. Hydroforming equipment suitable for use in this operation is described in U.S. Patent No. 5,987,950, which is assigned to the assignee of the present invention.
- tubular blanks that are electromagnetically pulse welded together may have different wall thicknesses as well as differing diameters.
- the inside diameter of the larger tube blank may be only slightly smaller than the outside diameter of the smaller tube blank; therefore, the radial space between blanks 30 and 32 at portions 34 and 36 of FIG. 1, or between blanks 54 and 52 at portions 58 and 56 of FIG. 3, may be negligible.
- die surfaces 95 and 97 defining die cavity 98 depicted in FIG. 5 can be of cross-sectional shapes other than circular, such as oval, rectangular, triangular, etc., depending on the desired shape of the part to be formed. For example for many automotive frame applications, tubular parts having a quadrilateral or triangular cross-section is desired.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002406454A CA2406454C (en) | 2000-04-26 | 2001-04-24 | Hydroforming a tubular structure of varying diameter from a tubular blank using electromagnetic pulse welding |
AT01923445T ATE299408T1 (en) | 2000-04-26 | 2001-04-24 | METHOD FOR HYDROFORMING A TUBULAR STRUCTURE WITH DIFFERENT DIAMETERS FROM A TUBULAR BLANK, USING MAGNETIC PULSE WELDING |
MXPA02010588A MXPA02010588A (en) | 2000-04-26 | 2001-04-24 | Hydroforming a tubular structure of varying diameter from a tubular blank using electromagnetic pulse welding. |
EP01923445A EP1276570B1 (en) | 2000-04-26 | 2001-04-24 | Hydroforming a tubular structure of varying diameter from a tubular blank using electromagnetic pulse welding |
DE60111935T DE60111935T2 (en) | 2000-04-26 | 2001-04-24 | METHOD FOR HYDRO FORMING A TUBULAR STRUCTURE COMPRISING DIFFERENT DIAMETERS FROM A TUBULAR ROHOLD IN MAGNETIC PULSE WELDING |
AU2001250218A AU2001250218A1 (en) | 2000-04-26 | 2001-04-24 | Hydroforming a tubular structure of varying diameter from a tubular blank using electromagnetic pulse welding |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US19981700P | 2000-04-26 | 2000-04-26 | |
US60/199,817 | 2000-04-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2001081021A2 true WO2001081021A2 (en) | 2001-11-01 |
WO2001081021A3 WO2001081021A3 (en) | 2002-02-07 |
Family
ID=22739152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA2001/000552 WO2001081021A2 (en) | 2000-04-26 | 2001-04-24 | Hydroforming a tubular structure of varying diameter from a tubular blank using electromagnetic pulse welding |
Country Status (10)
Country | Link |
---|---|
US (1) | US6474534B2 (en) |
EP (1) | EP1276570B1 (en) |
AR (1) | AR028029A1 (en) |
AT (1) | ATE299408T1 (en) |
AU (1) | AU2001250218A1 (en) |
CA (1) | CA2406454C (en) |
DE (1) | DE60111935T2 (en) |
MX (1) | MXPA02010588A (en) |
UY (1) | UY26682A1 (en) |
WO (1) | WO2001081021A2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011073589A3 (en) * | 2009-12-17 | 2012-05-10 | Gea Batignolles Technologies Thermiques | Method of manufacturing heat exchanger tubes and heat exchanger comprising such tubes |
WO2014184389A1 (en) * | 2013-05-17 | 2014-11-20 | Hydra Parts Nv | Improved method for assembling a membrane accumulator |
US9551360B2 (en) | 2011-11-17 | 2017-01-24 | Carl Freudenberg Kg | Hydraulic accumulator |
WO2018031773A1 (en) * | 2016-08-12 | 2018-02-15 | Baker Hughes, A Ge Company, Llc | Magnetic pulse actuation arrangement for downhole tools and method |
US10626705B2 (en) | 2018-02-09 | 2020-04-21 | Baer Hughes, A Ge Company, Llc | Magnetic pulse actuation arrangement having layer and method |
US10801283B2 (en) | 2016-08-12 | 2020-10-13 | Baker Hughes, A Ge Company, Llc | Magnetic pulse actuation arrangement for downhole tools and method |
Families Citing this family (53)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6379254B1 (en) | 1997-06-20 | 2002-04-30 | Spicer Driveshaft, Inc. | End fitting adapted to be secured to driveshaft tube by electromagnetic pulse welding |
US6654995B1 (en) * | 2000-10-16 | 2003-12-02 | General Motors Corporation | Method for joining tubular members |
FR2822104B1 (en) * | 2001-03-15 | 2003-06-13 | Vallourec Vitry | IMPROVED FIXING OF A CROSS-ARM AND ARM, ESPECIALLY DABS A SEMI-RIGID AXLE |
DE10136596B4 (en) * | 2001-07-30 | 2005-09-15 | Beru Ag | A method for connecting a rod-shaped heating element with a tubular housing of a glow plug and glow plug produced by this method |
EP1453621B1 (en) * | 2001-10-17 | 2007-10-10 | Corus Staal BV | Method for producing a container for a pressurized fluid, and container of this type |
US6910617B2 (en) * | 2002-03-06 | 2005-06-28 | Torque-Traction Technologies, Inc. | Method for securing a yoke to a tube using magnetic pulse welding techniques |
US6892929B2 (en) * | 2002-03-06 | 2005-05-17 | Torque-Traction Technologies, Inc. | Yoke structure that is adapted to be secured to a tube using magnetic pulse welding techniques |
US6908023B2 (en) * | 2002-03-06 | 2005-06-21 | Torque-Traction Technologies, Inc. | Apparatus for securing a yoke to a tube using magnetic pulse welding techniques |
US7025245B2 (en) * | 2002-06-10 | 2006-04-11 | Andrew Charles Gust | Magnetic welder |
US20040074095A1 (en) * | 2002-07-15 | 2004-04-22 | Stempien Vincent M. | Electromagnetic pulse welding of vehicle engine and exhaust components |
EP1561606A4 (en) * | 2002-09-17 | 2007-07-25 | Bridgestone Corp | Runflat tire support body and method of producing the same, and runflat tire |
US6817511B2 (en) * | 2002-12-16 | 2004-11-16 | Dana Corporation | Method for joining axle components |
US6922882B2 (en) * | 2003-05-19 | 2005-08-02 | General Motors Corporation | Method of joining tubular members |
US7204114B2 (en) * | 2003-08-28 | 2007-04-17 | General Motors Corporation | Method of progressive hydro-forming of tubular members |
CN1293338C (en) * | 2003-10-16 | 2007-01-03 | 河南新飞电器有限公司 | Method for jointing refrigerating coil with capillary tube of inner casing |
US8496258B2 (en) | 2003-10-20 | 2013-07-30 | Magna International Inc. | Hybrid component |
US8899624B2 (en) | 2005-05-19 | 2014-12-02 | Magna International Inc. | Controlled pressure casting |
US7143618B2 (en) * | 2004-01-22 | 2006-12-05 | General Motors Corporation | Method of making pre-formed tubular members |
JP4829798B2 (en) * | 2004-01-26 | 2011-12-07 | パルサー ウェルディング リミティド. | Apparatus and method for manufacturing a drive shaft |
US7059033B2 (en) * | 2004-01-30 | 2006-06-13 | General Motors Corporation | Method of forming thickened tubular members |
US7386938B2 (en) * | 2004-03-08 | 2008-06-17 | General Motors Corporation | Method of joining hydroformed tubular members |
EP1591173A1 (en) * | 2004-04-27 | 2005-11-02 | Corus Staal BV | Tubular blank |
KR101202139B1 (en) | 2004-06-17 | 2012-11-15 | 펄사르 웰딩 엘티디. | Bi-Metallic Connectors, Method for Producing the Same, and Method for Connecting the Same to a Structure |
EP1766727A1 (en) * | 2004-06-17 | 2007-03-28 | Pulsar Welding Ltd. | Bi-metallic connectors, method for producing the same, and method for connecting the same to a structure |
BRPI0518573A2 (en) * | 2004-11-24 | 2008-11-25 | Dana Corp | Method for performing magnetic pulse welding operation |
US20060108783A1 (en) * | 2004-11-24 | 2006-05-25 | Chi-Mou Ni | Structural assembly for vehicles and method of making same |
FR2883784B1 (en) * | 2005-03-31 | 2008-10-03 | Renault Sas | TOOL AND METHOD FOR ASSEMBLING METALLIC PARTS |
US7378622B2 (en) | 2006-01-11 | 2008-05-27 | Gateway Engineering, Inc. | System and method for electromagnetic pulse surface treatment |
MX2009003840A (en) * | 2006-10-13 | 2009-04-27 | Magna Int Inc | Metal forming with vibration assist. |
WO2008104980A2 (en) * | 2007-03-01 | 2008-09-04 | Pulsar Welding Ltd. | Apparatus for connecting an electric cable to a cable lug |
US8020272B2 (en) * | 2007-04-20 | 2011-09-20 | GM Global Technology Operations LLC | Method for joining tubes |
US8091588B2 (en) * | 2008-05-30 | 2012-01-10 | Fluid Routing Solutions, Inc. | Metallic tubular structure |
US8360301B2 (en) * | 2009-03-31 | 2013-01-29 | GM Global Technology Operations LLC | Mixed metal magnetic pulse impact beam |
CN102240908B (en) * | 2011-06-03 | 2014-01-08 | 浙江天兴管业有限公司 | Automatic forming and welding equipment and method of increaser pipe fitting |
US9028164B2 (en) | 2012-03-08 | 2015-05-12 | Dana Automotive Systems Group, Llc | Magnetic pulse formed vehicle driveshaft and method of making same |
FR3004368B1 (en) * | 2013-04-15 | 2015-09-25 | Aircelle Sa | SOLDERING WITHOUT TOOLS |
US9266190B2 (en) * | 2014-07-02 | 2016-02-23 | Ford Global Technologies, Llc | Solid cartridge for a pulse weld forming electrode and method of joining tubular members |
US9676054B2 (en) | 2014-08-08 | 2017-06-13 | Ford Global Technologies, Llc | Electrode cartridge for pulse welding |
FR3026037B1 (en) * | 2014-09-23 | 2017-03-10 | Adm28 S Ar L | COIL FOR WELDING MAGNETIC IMPULSE TUBULAR PIECES AND METHOD FOR WELDING THE SAME |
US9421636B2 (en) | 2014-12-19 | 2016-08-23 | Ford Global Technologies, Llc | Pulse joining cartridges |
JP6541979B2 (en) * | 2015-02-03 | 2019-07-10 | 株式会社神戸製鋼所 | Coil device for electromagnetic molding and method of manufacturing electromagnetic molding material |
FR3058661B1 (en) * | 2016-11-14 | 2019-06-28 | Adm28 S.Ar.L | MAGNETIC IMPULSE WELDING METHOD OF A STACK OF SHEETS |
US10822929B2 (en) * | 2016-12-02 | 2020-11-03 | Baker Hughes, A Ge Company, Llc | Electrohydraulic movement of downhole components and method |
JP6815946B2 (en) * | 2017-07-24 | 2021-01-20 | トヨタ自動車株式会社 | Manufacturing method of pipe with fixed member |
JP6793148B2 (en) * | 2018-04-12 | 2020-12-02 | 矢崎総業株式会社 | Manufacturing method of electromagnetic pressure welding terminal |
FR3084988B1 (en) | 2018-08-10 | 2022-10-07 | Unison Ind Llc | AVIONIC HEAT EXCHANGER |
EP4110682A4 (en) * | 2020-02-24 | 2024-04-03 | Multimatic Inc. | Multi-thickness welded vehicle rail |
CN111974865B (en) * | 2020-07-27 | 2024-05-10 | 佛山市永恒液压机械有限公司 | Clamping and pressing pipe forming equipment |
CN113814309B (en) * | 2021-09-23 | 2022-06-17 | 重庆大学 | Magnetic pulse forming device suitable for high-strength thick pipe fitting |
KR102530449B1 (en) * | 2021-11-04 | 2023-05-09 | 주식회사 이엠피케이 | Electromagnetic peening device for local processing of workpieces |
CN114473170A (en) * | 2021-12-28 | 2022-05-13 | 福州大学 | Device and method for welding pipe fitting by coil induction assisted electromagnetic pulse |
CN114505574B (en) * | 2022-04-08 | 2023-06-06 | 重庆科技学院 | Electromagnetic pulse welding device with smooth welding seam |
CN118081310B (en) * | 2024-04-26 | 2024-06-21 | 合肥工业大学 | Titanium-aluminum composite ring piece forming device and method |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1804455A1 (en) * | 1968-10-22 | 1970-09-03 | Inst Elektroswarki Patona | Magnetic forming of metals |
US3810372A (en) * | 1971-11-05 | 1974-05-14 | Alusuisse | Die |
WO1997000595A1 (en) * | 1995-06-16 | 1997-01-03 | Dana Corporation | Preparation of vehicle frame components for molecular bonding using magnetic impulse welding techniques |
GB2330096A (en) * | 1997-10-10 | 1999-04-14 | Gkn Sankey Ltd | A process for producing a tubular structural element |
WO1999065636A1 (en) * | 1998-06-14 | 1999-12-23 | Pulsar Welding Ltd. | Inducing physical changes in metal objects |
US6047582A (en) * | 1998-08-17 | 2000-04-11 | The Ohio State University | Hybrid matched tool-electromagnetic forming apparatus incorporating electromagnetic actuator |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE628067A (en) | 1961-01-13 | |||
US4513188A (en) | 1981-10-20 | 1985-04-23 | Jack Katzenstein | System and method for impact welding by magnetic implosion |
US4504714A (en) | 1981-11-02 | 1985-03-12 | Jack Katzenstein | System and method for impact welding by magnetic propulsion |
US4751836A (en) | 1986-07-07 | 1988-06-21 | Vetco Gray Inc. | Pipe end conditioner and method |
US5170557A (en) * | 1991-05-01 | 1992-12-15 | Benteler Industries, Inc. | Method of forming a double wall, air gap exhaust duct component |
US5333775A (en) | 1993-04-16 | 1994-08-02 | General Motors Corporation | Hydroforming of compound tubes |
US5644829A (en) | 1993-08-16 | 1997-07-08 | T I Corporate Services Limited | Method for expansion forming of tubing |
US5419171A (en) | 1993-10-14 | 1995-05-30 | The Boeing Company | Isostatic bulge forming |
US5445001A (en) | 1994-08-10 | 1995-08-29 | General Motors Corporation | Method and apparatus for forming and cutting tubing |
EP0954403B1 (en) | 1995-06-16 | 2005-02-09 | Dana Corporation | Molecular bonding of vehicle frame components using magnetic impulse welding techniques |
US5824998A (en) | 1995-12-20 | 1998-10-20 | Pulsar Welding Ltd. | Joining or welding of metal objects by a pulsed magnetic force |
DE19602951C2 (en) | 1996-01-27 | 2000-12-07 | Steingroever Magnet Physik | Method and device for expanding pipes or tubular parts by the magnetic field of a current pulse |
US5983478A (en) | 1996-09-18 | 1999-11-16 | The Boeing Company | Tube forming on an end fitting |
US6010155A (en) | 1996-12-31 | 2000-01-04 | Dana Corporation | Vehicle frame assembly and method for manufacturing same |
US5826320A (en) | 1997-01-08 | 1998-10-27 | Northrop Grumman Corporation | Electromagnetically forming a tubular workpiece |
US5981921A (en) | 1997-06-20 | 1999-11-09 | Dana Corporation | Method of magnetic pulse welding an end fitting to a driveshaft tube of a vehicular driveshaft |
CA2296098C (en) | 1997-07-18 | 2007-01-30 | Cosma International Inc. | Hydroforming of a tubular blank having an oval cross section and hydroforming apparatus |
US6346684B1 (en) * | 1997-10-16 | 2002-02-12 | Cosma International Inc. | Welding material assembly and method |
US5983497A (en) | 1997-12-22 | 1999-11-16 | Dana Corporation | Method for forming a vehicle driveshaft tube |
US5966813A (en) | 1997-12-23 | 1999-10-19 | Dana Corporation | Method for joining vehicle frame components |
US6050120A (en) | 1998-08-17 | 2000-04-18 | The Ohio State University | Hybrid matched tool-electromagnetic forming apparatus |
US6254488B1 (en) * | 1999-07-13 | 2001-07-03 | Daimlerchrysler Corporation | Hydroformed drive shaft and method of making the same |
US6255631B1 (en) * | 1999-11-29 | 2001-07-03 | Dana Corporation | Apparatus and method for joining vehicle frame components |
US6361244B1 (en) * | 2000-02-24 | 2002-03-26 | General Motors Corporation | Hydroformed tubular structures and methods of making |
-
2001
- 2001-04-24 CA CA002406454A patent/CA2406454C/en not_active Expired - Lifetime
- 2001-04-24 AT AT01923445T patent/ATE299408T1/en active
- 2001-04-24 MX MXPA02010588A patent/MXPA02010588A/en active IP Right Grant
- 2001-04-24 DE DE60111935T patent/DE60111935T2/en not_active Expired - Lifetime
- 2001-04-24 WO PCT/CA2001/000552 patent/WO2001081021A2/en active IP Right Grant
- 2001-04-24 EP EP01923445A patent/EP1276570B1/en not_active Expired - Lifetime
- 2001-04-24 AU AU2001250218A patent/AU2001250218A1/en not_active Abandoned
- 2001-04-24 AR ARP010101887A patent/AR028029A1/en unknown
- 2001-04-25 US US09/841,176 patent/US6474534B2/en not_active Expired - Lifetime
- 2001-04-25 UY UY26682A patent/UY26682A1/en not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1804455A1 (en) * | 1968-10-22 | 1970-09-03 | Inst Elektroswarki Patona | Magnetic forming of metals |
US3810372A (en) * | 1971-11-05 | 1974-05-14 | Alusuisse | Die |
WO1997000595A1 (en) * | 1995-06-16 | 1997-01-03 | Dana Corporation | Preparation of vehicle frame components for molecular bonding using magnetic impulse welding techniques |
GB2330096A (en) * | 1997-10-10 | 1999-04-14 | Gkn Sankey Ltd | A process for producing a tubular structural element |
WO1999065636A1 (en) * | 1998-06-14 | 1999-12-23 | Pulsar Welding Ltd. | Inducing physical changes in metal objects |
US6047582A (en) * | 1998-08-17 | 2000-04-11 | The Ohio State University | Hybrid matched tool-electromagnetic forming apparatus incorporating electromagnetic actuator |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011073589A3 (en) * | 2009-12-17 | 2012-05-10 | Gea Batignolles Technologies Thermiques | Method of manufacturing heat exchanger tubes and heat exchanger comprising such tubes |
US9551360B2 (en) | 2011-11-17 | 2017-01-24 | Carl Freudenberg Kg | Hydraulic accumulator |
WO2014184389A1 (en) * | 2013-05-17 | 2014-11-20 | Hydra Parts Nv | Improved method for assembling a membrane accumulator |
WO2018031773A1 (en) * | 2016-08-12 | 2018-02-15 | Baker Hughes, A Ge Company, Llc | Magnetic pulse actuation arrangement for downhole tools and method |
US10596655B2 (en) | 2016-08-12 | 2020-03-24 | Baker Hughes, A Ge Company, Llc | Magnetic pulse actuation arrangement for downhole tools and method |
US10801283B2 (en) | 2016-08-12 | 2020-10-13 | Baker Hughes, A Ge Company, Llc | Magnetic pulse actuation arrangement for downhole tools and method |
US11014191B2 (en) | 2016-08-12 | 2021-05-25 | Baker Hughes, A Ge Company, Llc | Frequency modulation for magnetic pressure pulse tool |
US11465229B2 (en) | 2016-08-12 | 2022-10-11 | Baker Hughes, LLC | Frequency modulation for magnetic pressure pulse tool |
US10626705B2 (en) | 2018-02-09 | 2020-04-21 | Baer Hughes, A Ge Company, Llc | Magnetic pulse actuation arrangement having layer and method |
Also Published As
Publication number | Publication date |
---|---|
US20020003159A1 (en) | 2002-01-10 |
EP1276570A2 (en) | 2003-01-22 |
MXPA02010588A (en) | 2003-05-14 |
DE60111935D1 (en) | 2005-08-18 |
US6474534B2 (en) | 2002-11-05 |
DE60111935T2 (en) | 2006-04-20 |
WO2001081021A3 (en) | 2002-02-07 |
EP1276570B1 (en) | 2005-07-13 |
AU2001250218A1 (en) | 2001-11-07 |
UY26682A1 (en) | 2001-12-28 |
ATE299408T1 (en) | 2005-07-15 |
AR028029A1 (en) | 2003-04-23 |
CA2406454C (en) | 2009-08-11 |
CA2406454A1 (en) | 2001-11-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2406454C (en) | Hydroforming a tubular structure of varying diameter from a tubular blank using electromagnetic pulse welding | |
US5333775A (en) | Hydroforming of compound tubes | |
US5826320A (en) | Electromagnetically forming a tubular workpiece | |
KR100517584B1 (en) | A hydroformed angled tubular part, and method and apparatus for making the same | |
US5824998A (en) | Joining or welding of metal objects by a pulsed magnetic force | |
US5460026A (en) | Method of and apparatus for the cutting of an opening in a hollow body | |
FI95544C (en) | Reduction of diameter in tubular pieces | |
EP1210189B1 (en) | Reinforced hydroformed members and methods of making the same | |
US6654995B1 (en) | Method for joining tubular members | |
EP0195157A2 (en) | Method of forming box-section frame members | |
MXPA01002003A (en) | Method of hydroforming tubular members. | |
US6467146B1 (en) | Method of forming of a tubular metal section | |
US6578400B1 (en) | Internal high pressure forming method for a workpiece | |
US6065317A (en) | Apparatus and procedure for manufacturing metallic hollow bodies with structural bulges | |
EP1395785B1 (en) | A method for producing a head element for heaters | |
EP1641589B1 (en) | Magnetic pulse welding method for sealing a vessel | |
JP2004337898A (en) | Hydraulic forming method and hydraulic forming device for tubular member | |
US7905129B1 (en) | Method and tool for contracting tubular members by electro-hydraulic forming before hydroforming | |
JP2006305587A (en) | Method for expanding end part of tubular material made of aluminum | |
US20060145474A1 (en) | Electromagnetic mechanical pulse forming of fluid joints for low-pressure applications | |
JPH0230336A (en) | Method for expanding metallic tube | |
CA2612998A1 (en) | Electromagnetic (em) metal forming techniques for hydroforming pierce punches drive via em energy, for forming tubular metal workpieces over a mandrel, and for making camshaft assemblies | |
EP1579931A1 (en) | Method for hydroforming a hollow body having at least a branch portion, and apparatus used for carrying out this method | |
MXPA98004990A (en) | Union or electromagnetic welding of metali objects |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
AK | Designated states |
Kind code of ref document: A3 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A3 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2001923445 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2406454 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: PA/a/2002/010588 Country of ref document: MX |
|
WWP | Wipo information: published in national office |
Ref document number: 2001923445 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWG | Wipo information: grant in national office |
Ref document number: 2001923445 Country of ref document: EP |