EP1796859B1 - Procede et dispositif pour produire un profile creux a soudure longitudinale - Google Patents

Procede et dispositif pour produire un profile creux a soudure longitudinale Download PDF

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Publication number
EP1796859B1
EP1796859B1 EP05778094A EP05778094A EP1796859B1 EP 1796859 B1 EP1796859 B1 EP 1796859B1 EP 05778094 A EP05778094 A EP 05778094A EP 05778094 A EP05778094 A EP 05778094A EP 1796859 B1 EP1796859 B1 EP 1796859B1
Authority
EP
European Patent Office
Prior art keywords
sheet metal
metal blank
mandrel
profile
tool parts
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.)
Not-in-force
Application number
EP05778094A
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German (de)
English (en)
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EP1796859A1 (fr
Inventor
Michael BRÜGGENBROCK
Thomas Flehmig
Wladimir Rituper
Mohamed Tohfa
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.)
ThyssenKrupp Steel Europe AG
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ThyssenKrupp Steel AG
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Publication of EP1796859A1 publication Critical patent/EP1796859A1/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
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/10—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/0815—Making tubes with welded or soldered seams without continuous longitudinal movement of the sheet during the bending operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles

Definitions

  • the invention relates to a method for producing a longitudinally welded hollow profile from a defined longitudinal edges having sheet metal blank according to the preamble of claim 1 and an apparatus for producing a longitudinally welded hollow profile from a defined longitudinal edges having sheet metal blank according to the preamble of claim 9 (see, eg US-A-3,732,614 ).
  • Tailored tubes are those tube elements which are composed of sheet metal sections, or whose material properties are adapted to the loads and requirements occurring in practical use or in the shaping process.
  • the sheet metal blank is formed into a slot pipe and welded.
  • the longitudinal edges of the sheet metal blank are aligned parallel to the recesses of the mold halves so that the tool halves receive their respective associated edges when moving together and viewed in cross-section circular arc to move toward each other.
  • a major disadvantage of the DE-PS 966 111 known procedure is that it requires a certain minimum stiffness of the processed sheet. This is the only way to ensure that the sheet curves uniformly to the slotted tube when the tool halves move together. Thin sheets can not be targeted deform in this known manner to a tube with a precisely predetermined cross-sectional shape, but form in the course of the deformation process uncontrollable edges and wrinkles, the pipe element unusable can do. Also, the welding performs a according to the of DE-PS 966 111 known method formed slot pipe to undesirable deformations when the sheet is so thin that it can not absorb the unavoidable load on it during welding forces.
  • the thin sheet to be deformed is placed between the tool halves in such a way that its longitudinal edges are threaded during the subsequent movement of the tool halves into the annular gap formed in the respective tool half.
  • the longitudinal edges continue to push up the longitudinal gap and the sheet is bent to a slot pipe.
  • This designated as "curling" molding process is complete when the longitudinal edges meet in the apex of the slot tube obtained. After a rounding of the edge impact by means of a roller, this slotted tube can be welded in the region of its slot without the need to spend the tube in another device.
  • the object of the invention to provide a method and an apparatus that allow the cost-effective production of precisely shaped hollow profiles in a simple manner.
  • the sheet metal blank is actively inserted into the recess provided for the shaping of the stationary tool part. This can be done with the help of the second, movable tool part. Additionally or alternatively, the mandrel and the base plate may be used individually or together to hold and move the sheet metal blank as it is deformed.
  • the mandrel supports the sheet metal in its deformation by being able to rest against it, thus enabling a minimized, true-to-the-faith production of the hollow profiles in short production times.
  • a calibration of the obtained, initially coarsely shaped slot profile is carried out in at least two further steps.
  • This calibration is effected by a further change in the relative position of the tool parts.
  • the tool parts can optionally be pressed individually or jointly against the mandrel in order to adapt the shape of the slot profile perfectly to the final shape of the hollow profile predetermined by the desired manufacturing result. The pre-formed in this way slot profile can then be welded easily.
  • a particularly practical embodiment of the method according to the invention is characterized in that the sheet metal blank is placed on a base plate between the Tool parts is placed and the mandrel is then pressed against the plate lying on the base plate to exert a holding force on the sheet, by which a lateral displacement of the sheet is prevented.
  • the mandrel fulfills a double function by, on the one hand, reproducing the shape of the hollow profile to be produced and, on the other hand, serving as a holder, by means of which the secure, positionally accurate hold of the sheet metal blank is ensured during its deformation.
  • the mandrel may be designed such that it has a length-constant shape in the region facing the sheet-metal blank. Such a shape is, for example, when the mandrel is cylindrical, block, box or tube-like. A counterpart corresponding to the mandrel is present in the form of the counterplate. Due to the force exerted by the mandrel, the sheet metal blank can be embossed between the base plate and the mandrel. It is also conceivable to provide only one recess in the base plate, wherein the embossing between the sheet metal blank and the base plate is effected by the force exerted by the mandrel and thus a positive connection can be provided.
  • a positive connection of the type can be realized that the transverse edges of the sheet metal blank by existing on both sides of the base mold elements by laterally applied to the sheet metal blank Holding elements against a Slipping secured.
  • a positive retention of the sheet can also be realized in that provided on the base plate, for example, elevations, such as pins, bolts or the like, which cooperate positively with corresponding form elements, such as recesses, the sheet metal blank.
  • suitable form elements can be realized on the mandrel, which in turn cooperate with form elements of the sheet to ensure its positive fit.
  • the deformation of the sheet metal blank takes place at least three stages.
  • Such performed deformation proves to be particularly advantageous in the processing of thin sheets, if particularly precisely shaped hollow sections to be produced.
  • the multi-stage production makes it possible to preform the slot profile produced from the sheet metal blank initially in a rough approximation to the final shape in order then to bring it in several steps in its final form.
  • This approach is contrary to the tendency of each processed sheets not to deform when pushed into the recesses of the tool parts in a continuous arc, but gradually fold over, the transitions between the individual bent steps are soft.
  • the slot profile formed from the sheet metal blank then has a polygonal cross-section, which is then brought into its final shape in at least two further processing stages, the calibration process.
  • the longitudinal edges of the previously obtained slot profile are guided by means of a hold-down device. Such a hold-down makes it possible to align the longitudinal edges of the sheet metal blank in the region of the slot of the slot profile formed from it parallel and in a common plane.
  • the hold-down is adapted to reduce the width of the slot of the slot profile at each stage of the calibration.
  • the longitudinal edges in the region of the slot of the slot profile are kept at a predetermined distance.
  • the secure support provided by the holddown of the slot profile also in the region of its slot makes it possible to perform before the longitudinal seam welding in addition to the calibration effect, a smoothing of the edges of the sheet metal blank. In this way, welds of high quality can be produced, as required in particular in the manufacture of components for the body shop.
  • a recess is formed in the mandrel which is positioned in the region which is associated with the longitudinal weld seam to be produced on the profile to be produced.
  • the method of the invention does not necessarily assume that the mandrel remains in the slot profile during welding. Rather, it has been found that the tool parts used according to the invention and the inherent rigidity achieved by the calibration of the slotted tube are often sufficient in the case of corresponding sheet qualities, in order to ensure sufficient dimensional stability of the slit profile even during the welding. It is therefore provided according to a further variant of the invention to remove the mandrel from the slot profile between the calibration and the welding of the slot profile.
  • a holding device can be provided, which is designed, for example, in the form of hooks and, if necessary, engages in the slot of the slot profile in order to keep the slot at the required for the extension of the mandrel small retraction of the tool parts to a specified size.
  • the mandrel can then be easily pulled out of the slot profile. Subsequently, the tool parts are moved together again defined, so that the slot profile held securely for the welding process and the edge impact is closed.
  • the mandrel In principle, it is possible to manufacture the mandrel from a solid material. This is particularly useful when in the mandrel further functional elements are used, which are needed for molding the hollow profile or for removing the mandrel from the finished hollow profile.
  • the mandrel itself can also be produced from a hollow profile, for example in the form of a dimensionally stable tube. Its interior can then be used, for example, to catch the weld residue.
  • the extraction of the mandrel from the finished hollow profile can be simplified in that the outer shape of the mandrel is smaller by a small undersize than the inner shape of the hollow profile to be produced. Practical tests have shown that it is sufficient if this undersize is up to 0.2 mm compared to the desired inner shape of the hollow profile to be produced.
  • secondary shaping elements such as beads or similar embossings
  • the mandrel has an embossing device for embossing the sheet placed around it.
  • a mandrel may not have length-constant secondary structures for embossing, provided that it is possible to remove the mandrel after deformation, which is the case for example with a conical basic structure.
  • the embossing device can be designed as an embossing die which can be moved beyond the circumference of the mandrel and in the recesses of the tool parts form elements as a counterpart be provided for the shaping produced by the embossing device.
  • an embossing device may be provided in the region of at least one of the recesses of the tool parts, for which purpose the embossing device may likewise be designed as an embossing stamp and in the mandrel a shaped element as a counterpart for the shaping produced by the embossing device.
  • the embossing devices used in each case are preferably hydraulically operated in order to apply the required pressing forces safely. It is also conceivable to use pneumatically, mechanically or electrically operated embossing devices.
  • the procedure according to the invention in which the longitudinal edges of the sheet metal blank to be deformed move freely along the inner surfaces of the recess provided in the tool parts in the first step of the deformation, makes it possible to produce hollow profiles with non-uniform cross-sectional shapes.
  • the recesses formed in the tool parts can be designed differently, wherein the mandrel is adapted in a corresponding manner to the different shape of the recesses.
  • the device according to the invention is equipped with a hold-down, which is deliverable in the direction of the mandrel.
  • this hold-down device has a first step whose thickness corresponds to a first width of the gap of the slot profile to be preformed from the sheet metal blank, and at least one second shoulder whose thickness is equal to a second width of the second Slits of the slot profile is. If a recess is provided in the mandrel, which extends along the weld seam to be produced, then the section with the smallest thickness can have a height that is greater than the thickness of the sheet metal blank to be deformed.
  • a further advantageous embodiment of the invention is in this context characterized in that at least one deflection surface is formed on the hold-down, which is positioned at befindlichem in operating position hold-down so that it deflects a striking it longitudinal edge of the sheet metal blank in the direction of the mandrel.
  • tool parts can be introduced into the hollow profile by this hydroforming secondary elements.
  • the tool parts can be provided with form elements, such as recesses, in which the sheet is pressed in the course of hydroforming.
  • the in the FIGS. 1 to 9 illustrated device V1 for producing a longitudinally welded hollow profile R which has the shape of a circular tube comprises two tool parts 2,3, which are mounted on a base plate G against each other movable.
  • the working length of the device V1 for the production of hollow profiles R is for example up to 3,000 mm.
  • adjusting devices For moving together and moving apart of the tool parts 2.3 adjusting devices, not shown here are provided, of which in each case several, for example, four, distributed in the longitudinal direction of the tool parts 2.3 may be arranged to uniform as possible movement of the tool parts 2.3 and a like ensure uniform transmission of the forces exerted by the tool parts 2.3 forces.
  • the adjusting devices are designed so that they can move the tool parts 2,3 at a speed of 1 mm / s to 80 mm / s and thereby exert a force of at least 7,500 kN.
  • each of the other tool part 2.3 associated side of the tool parts 2,3 each have a half-shell-shaped recess is formed 4.5.
  • the radius RiA of the concavity of the inner surfaces 6,7 of the recesses 4, 5 corresponds to the outer radius RaR of the tubular hollow profile R to be produced.
  • the device V1 has a mandrel 8 made of a solid material, which can be moved from a removal position, not shown here, into a working position, in which it is arranged centrally between the tool parts 2, 3.
  • the mandrel 8 can be adjusted in the vertical direction to exert a holding force on a placed on the base plate G between the tool parts located in the starting position 2.3 sheet metal blank B.
  • a groove-shaped recess 9 is provided in the mandrel 8 formed, which extends from a narrow, the circumference of the mandrel 8 associated portion 9a in a chamber 9b, in the bottom of a slot 9c is formed, the width of which is again smaller than the width of the portion 9a.
  • the width of the narrow portion 9a of the recess 9 corresponds to an excess of the width of the weld S to be produced on the hollow profile R.
  • the width of the slit 9c aligned centrally with the narrow portion 9a is smaller than the width of the portion 9a.
  • collecting strips 10 are arranged, which serve to catch welding residues.
  • the collecting strips 10 are made of a heat-resistant material and can be pulled over openings, not shown, from the mandrel 8.
  • the device V1 comprises a sword-shaped hold-down 11 whose length corresponds to the length of the mandrel 8.
  • the hold-down device 11 can be moved by means of an actuating device, not shown, from its working positions assigned to the mandrel 8 into a waiting position arranged laterally of the tool part 2.
  • the hold-down 11 has an upper, in cross-section roof-shaped portion 11a, whose shoulders 11b, 11c viewed in cross-section are aligned obliquely tapering towards each other at the bottom and inside.
  • the section 11a is adjoined by a first shoulder 11d, which extends over the length of the hold-down 11 and, viewed in cross section, is aligned centrally with the section 11a.
  • the thickness D1 of the first paragraph 11d corresponds to the width of the slot Z of one of the Blechzu Songs B shaped slot profile Sr after a first deformation stage.
  • a second step 11e of the hold-down 11 is formed. Also this paragraph 11e extends over the length of the blank holder. Its thickness D2 corresponds to the width of the slot Z of the slot profile Sr after a second stage of the calibration.
  • a blade-like design, thin third shoulder 11f is formed, which is also seen in cross section centrally to the other paragraphs 11d, 11e of the blank holder 11 and extends over the length thereof.
  • the thickness D3 of the third portion is slightly smaller than the width of the slit 9c formed in the bottom of the chamber 9b in the mandrel 8.
  • the height H of the third portion 11f is greater than the distance of the opening of the slot 9c in the bottom of the chamber 9b to the circumference of the mandrel 8.
  • the third section runs like a blade, pointed in cross-section.
  • the hold-down device 11 is lowered in the direction of the mandrel 8. At first, its third section 11f dips into the recess 9 and is inserted into the slot 9c. The slot 9c thus forms a guide for the hold-down 11 during the molding process. In the course of the calibration of the hollow profile R, the hold-down 11 is pulled in one or more steps.
  • a laser welding device 12 is preferably used for welding the slit profile Sr formed from the sheet metal blank B.
  • other welding units for example, inductively operating welding devices that allow economic welding of the associated longitudinal edges B1, B2 in the region of the slot Z of the slot profile Sr.
  • the laser welding device 12 is attached to a carrier 13 which can be moved by means of an adjusting device, not shown, along the slot Z. Furthermore, the carrier 13 carries a Nachformrolle 14, which is arranged in the welding direction F with a small distance in front of the laser welding device 12. The edge impact acts with a certain force against the path-controlled Nachformrolle 14 to eliminate a roof-shaped edge formation and to avoid springback of the edges B1, B2 of the hollow profile R in the seam area. At least the laser welding device 12 should be surrounded by a housing, not shown here, to protect the operator from the light radiation.
  • the carrier 13 may carry a cleaning device, not shown here, which cleans the welding area before the laser welding device 12 reaches it.
  • the cleaning device can suck, pre-brush or rinse off the dirt present in front of the welding area.
  • sliding shoes 15 or rollers may be provided, which are also fastened to the carrier 13.
  • the carrier 13 may also carry a supply line, via the protective gas in the Welding area is passed.
  • the carrier is moved by an adjusting device which is controllable in exactly three degrees of freedom (X, Y, Z direction).
  • the device V1 can be designed as a twin device. This makes it possible to load the one device with a new sheet blank B and traversformen this, while still in the other device, the welding is performed.
  • the sheet metal blank B is located on the base plate G. It is pressed firmly and immovably against the base plate G by the mandrel 8, the underside of which has a small flat surface.
  • the hold-down device 11 is lowered with its blade-like portion 11f into the slot 9c of the recess 9 until the upper portion 11a of the hold-down 11 sits on the mandrel 8 and acts on the mandrel 8 with a defined pressure force ( Fig. 1 ).
  • the two tool parts 2, 3 are pushed toward one another, so that the edges 2,3, respectively, of the sheet metal blank B assigned to the tool parts 2, 3 are first pushed upwards and then gradually buckle.
  • the mandrel 8 approaches the straight, unfolded leg of the sheet metal blank B, it presses it so far crooked that further kinks occur.
  • the sheet edges B1, B2 abut the inclined shoulders 11b, 11c of the blank holder 11.
  • the edges B1.B2 are deflected in the direction of the mandrel 8.
  • a pressure results in the sheet metal blank B, which leads to a certain calibration effect with the consequence that the kinks are flattened ( Fig. 3 ).
  • the holding-down device 11 After relieving the hold-down device 11 by slightly driving up the tool parts 2, 3, the holding-down device 11 is pulled until its second shoulder 11e becomes free and is in the region of the slot bounded by the edges B1, B2 of the sheet metal blank B. Upon further movement of the tool parts 2, 3, the edges B1, B2 also abut against the second section 11e, so that here too a calibration effect with improvement of the roundness of the slot profile Sr formed from the sheet metal blank B arises ( Fig. 4 ).
  • the holding-down device 11 is lifted so far that its narrow section 11 f is arranged in the region of the slot Z ( Fig. 5 ).
  • the tool parts 2,3 are fed to each other under high pressure, so that an accurate calibration of the slot profile Sr is established with formation of the desired roundness and linearity of the strip edges, which then give an ideal impact.
  • the gap remaining between the mandrel 8 and the tool parts 2, 3 is only minimal ( Fig. 6 ).
  • the hold-down 11 is pulled out of the recess 9.
  • the pulling movement of the blank holder 11 can be combined with a further movement of the tool parts 2,3, so that its tip in the region of Slot Z stands and ensures that the edges B1, B2 of the slot profile remain exactly in the middle ( Fig. 7 ).
  • the hold-down 11 When the hold-down 11 is completely pulled, the slot profile Sr is finished and ready for welding.
  • the hold-down 11 is moved from the edge region laterally into its rest position and retracted from the carrier 13, the laser welding device 12, the Nachformrolle 14, the shoe 15 and the other elements not shown here Nachrundungs- and welding unit.
  • the postforming roller 14 When driving over the edge impact formed in the region of the slot Z from one tube end to the other, the postforming roller 14 initially presses down the edges B1, B2 in a defined manner. In this case, a rounding can be made if the edges B1, B2 are not formed sufficiently round by the calibration. Subsequent to Nachformrolle 14 of the shoe 15 or a corresponding role immediately before the laser welding device 12, the springback and the height differences of the edges B1, B2 push away, so that an ideal I-shock. The welding of the slot Z is then carried out by the output from the laser welding device 12 laser beam ( Fig. 8.9 ).
  • a new manufacturing process begins with the positioning of the Tool parts 2.3, the insertion of the sheet metal blank B and the positioning of the mandrel 8 on the sheet metal blank B.
  • the tool parts 2, 3 have been moved synchronously against the mandrel 8.
  • the mandrel 8 can be pressed so firmly against the sheet metal blank B that slipping during deformation is reliably avoided.
  • the secure hold of the sheet metal blank B in the deformation can also be supported by the fact that on the base plate G form elements in the form of pins are provided which engage in corresponding recesses of the sheet metal blank B, so that not only a frictional, but also a positive fit of Sheet metal blank B is guaranteed.
  • the tool part 2 can be displaced in the direction of the mandrel 8 to form the first half of the slot profile Sr.
  • the second tool part 3 is then moved in the direction of the mandrel 8 to produce the second half of the slot profile Sr.
  • FIGS. 10a to 12 Another, particularly practical way of realizing the invention is in the FIGS. 10a to 12 shown.
  • the device V2 shown there has tool parts 102,103, which are designed according to the tool parts 2,3 of the device V1 and each have a recess 104,105.
  • the device has a mandrel 108 shaped like the mandrel 8, a hold-down 111 shaped like the hold-down 11, and a base plate G2.
  • the first tool part 102 is fixedly arranged in the device V2, while the tool part 103 can be moved by means of suitable, not shown here adjusting devices on the fixed tool part 102 to and from this.
  • the mandrel 108 with the hold-down device 111 can be moved in the horizontal direction toward and away from the tool part 102.
  • the base plate G2 on which the tool part 103 is displaceably mounted can be moved horizontally in the direction of the stationary tool part 102 by suitable means not shown here.
  • the base plate G2 in the region of the transverse edges B3, B4 of the sheet metal blank Bz to be deformed in the device V2 into a tubular slot profile Sr2, there are provided on the base plate G2 form elements 116, 117 in the form of pins. These pin-shaped form elements 116,117 engage with resting on the base plate G2 sheet metal blank Bz form-fitting manner in recesses B5, B6, which are arranged centrally in the transverse edges B3, B4 of the sheet metal blank Bz.
  • the latter has, in the region of its end faces on its side assigned to the base plate G2, in each case a recess 118 into which the shaped elements 116, 117 engage when the mandrel 108 is pressed onto the sheet metal blank Bz.
  • the sheet metal blank Bz For deforming the respective sheet metal blank Bz for slot profile Sr2, the sheet metal blank Bz is placed on the base plate G2, so that the mold elements 116,117 engage in the recesses B5, B6 of the sheet metal blank Bz and it is held in a form-fitting manner.
  • the sheet metal blank Bz is arranged centrally below the mandrel 108, which is then lowered until it presses with a prescribed holding force on the sheet metal blank Bz. It is also conceivable embodiment in which a frictional connection is applied by means of mandrel 108 and thus the mold elements 116, 117 can be omitted with the recesses B5, B6 in the sheet metal blank Bz.
  • structures in the contact area of the mandrel can provide positive locking.
  • the movable tool part 103 is in this case in its starting position remote from the stationary tool part 102, in which the longitudinal edges B1, B2 of the sheet metal blank Bz lie in the entry of the respective recesses 104, 105 of the tool parts 102, 103.
  • the base plate G2 is in a retracted starting position, in which its longitudinal edge assigned to the fixed tool part 102 is arranged just below it ( FIGS. 10a, 10b ).
  • the base plate G2 is then moved with the tool part 103, which is still stationary on it, in the direction of the stationary tool part 102.
  • the mandrel 108 is moved with the hold-111 in the direction of the tool part 102, wherein the on the Blechzuintroductory Bz applied holding force is maintained.
  • the sheet metal blank Bz is forced in this way to move with its longitudinal edge B1 in the recess 104 of the tool part 102. This movement is completed; when the longitudinal edge B1 hits the hold-down 111 and the mandrel 108 has moved into the recess 104 ( Fig. 11 ).
  • the movable tool half 103 is displaced on the now stationary base plate G2 in the direction of the mandrel 108.
  • the longitudinal edge B2 of the sheet metal blank Bz is thereby pushed into the recess 105 of the tool part 103 until it also hits the hold-down 111 and the tool part 103 has reached the mandrel 108 (FIG. Fig. 12 ).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Laser Beam Processing (AREA)

Claims (28)

  1. Procédé pour la fabrication d'un profilé creux (R) soudé par un cordon longitudinal, à partir d'un flan de tôle (B) présentant des bords longitudinaux définis (B1, B2),
    dans lequel la pièce découpée en tôle (B) est préalablement déformée en un profilé fendu (Sr), au moyen d'au moins deux éléments d'outils (2, 3), qui présentent chacun un évidement (4, 5), qui détermine la forme extérieure d'au moins une section du profilé creux (R) à fabriquer, la pièce découpée en tôle (B) étant placée librement, par une modification de la position relative des éléments d'outils (2, 3), autour d'un mandrin (8), qui est positionné entre les éléments d'outil (2, 3), en s'étendant dans la direction longitudinale de la pièce découpée en tôle (B), et dont la forme extérieure détermine la forme intérieure du profilé creux (R) à fabriquer,
    et dans lequel, des bords longitudinaux définis (B1, B2) de la pièce découpée en tôle (B), orientés l'un vers l'autre, sont ensuite soudés ensemble dans la zone du profilé fendu (Sr),
    caractérisé en ce que, avant le processus de soudage, le profilé à fente (Sr) est complètement préformé et calibré au moins en deux étapes, par une autre modification de la position relative des éléments d'outil (2, 3), en ce que la largeur de la fente (Z) du profilé fendu (Sr) est réduite lors de chaque étape du calibrage, et en ce que, lors de chaque étape du calibrage, les bords longitudinaux définis (B1, B2) sont maintenus à une distance prédéterminée, dans la zone de la fente (Z) du profilé fendu (Sr).
  2. Procédé selon la revendication 1, caractérisé en ce que, dans la première étape du préformage de la pièce découpée en tôle (B), un profilé à fente (Sr) de section transversale polygonale est formé.
  3. Procédé selon l'une des revendications précédentes, caractérisé en ce que la pièce découpée en tôle (B) est posée sur une plaque de base (G), entre les éléments d'outil (2, 3), et que le mandrin (8) est pressé ensuite contre la pièce découpée en tôle (B), posée sur la plaque de base (G), pour exercer sur la pièce découpée en tôle (B) une force de maintien, par laquelle un déplacement latéral de la pièce découpée en tôle (B) est empêché.
  4. Procédé selon l'une des revendications précédentes, caractérisé en ce que la pièce découpée en tôle (B) est maintenue, sur ses côtés transversaux, par emboîtement et / ou par friction, pendant le préformage.
  5. Procédé selon la revendication 4, caractérisé en ce que, dans les côtés transversaux de la pièce découpée en tôle (B), sont formés des éléments façonnés ou que, sur les côtés transversaux de la pièce découpée en tôle (B) sont formés des éléments façonnés, qui coopèrent avec des éléments de maintien disposés sur la plaque de base (G) ou sur le mandrin (8).
  6. Procédé selon l'une des revendications précédentes, caractérisé en ce que le profilé creux (R) fini et le mandrin (8) sont séparés l'un de l'autre, après le soudage, par un mouvement relatif, s'effectuant dans le sens longitudinal, entre le mandrin (8) et l'élément tubulaire (R).
  7. Procédé selon l'une des revendications 1 à 5,
    caractérisé en ce que le profilé fendu (Sr) et le mandrin (8) sont séparés l'un de l'autre avant le soudage.
  8. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'un post-formage des bords de la pièce découpée en tôle (B) est exécuté avant la soudure à cordon longitudinal.
  9. Dispositif pour la fabrication d'un profilé creux à soudure longitudinale (R) à partir d'une pièce découpée en tôle (B) présentant des bords longitudinaux définis (B1, B2), avec au moins deux éléments d'outil (2, 3), dont la position relative peut être modifiée, et qui présentent chacun un évidement (4, 5), qui définit la forme extérieure d'au moins une section du profilé creux à fabriquer (R), avec un mandrin (8), dont la forme extérieure correspond à la forme intérieure du profilé creux (R) à fabriquer, et avec un dispositif de soudage (12) pour souder les bords longitudinaux définis (B1, B2) de la pièce découpée en tôle (B) après son façonnage en un profilé fendu (Sr), caractérisé en ce qu'est prévu un système de commande, qui émet les signaux de commande pour la modification, effectuée en au moins deux phases, de la position relative des éléments d'outil (2, 3) d'une position initiale, dans laquelle ils sont éloignés l'un de l'autre, à une position de formage, en ce qu'est prévu un dispositif de retenue (11), qui peut être ajusté dans la direction du mandrin (8) afin de former un guidage pour les bords longitudinaux définis (B1, B2) de la pièce découpée en tôle (B), dans la région d'un profilé à fente (Sr), préformé à partir de la pièce découpée en tôle (B), et en ce que le dispositif de retenue (11) présente une première section (11d), dont l'épaisseur (D1) correspond à une première largeur de la fente (Z) du profilé fendu (Sr) à former à partir de la pièce découpée en tôle (B), et au moins une deuxième section? (11e, 11f), dont l'épaisseur (D2, D3) est égale à une deuxième largeur de la fente (Z) du profilé fendu (Sr).
  10. Dispositif selon la revendication 9, caractérisé en ce qu'est prévu un dispositif d'ajustage pour mouvoir le mandrin (8) d'une position de service, dans laquelle il est positionné entre les éléments d'outil (2, 3), au-dessus de la pièce découpée en tôle (B) devant être respectivement déformée, à une position de prélèvement, dans laquelle le profilé creux (R) fini peut être retiré hors du dispositif (1).
  11. Dispositif selon la revendication 10, caractérisé en ce que, dans le mandrin (8), est formée une cavité (9), qui est positionnée dans la région qui est associée au cordon de soudure longitudinal à exécuter sur le profilé creux (R) à fabriquer.
  12. Dispositif selon la revendication 11, caractérisé en ce que, dans la cavité (9), est disposée une barre collectrice (10) pour collecter les déchets provenant de la soudure.
  13. Dispositif selon l'une des revendications 9 à 12, caractérisé en ce que le mandrin (8) présente, dans la zone de contact, des structures constantes longitudinalement.
  14. Dispositif selon l'une des revendications 9 à 13, caractérisé en ce que la forme extérieure du mandrin (8) est légèrement plus petite que la forme intérieure de la pièce découpée en tôle (B) à fabriquer.
  15. Dispositif selon l'une des revendications 9 à 14, caractérisé en ce que le mandrin (8) présente un dispositif d'estampage pour l'estampage de la tôle disposée autour de lui.
  16. Dispositif selon la revendication 15, caractérisé en ce que le dispositif d'estampage est conçu en tant que poinçon déplaçable au-delà du pourtour du mandrin (8), et que, dans les évidements des éléments d'outil (2, 3), sont formés des éléments façonnés, en tant que contre-pièces pour le façonnage réalisé par le dispositif d'estampage.
  17. Dispositif selon l'une des revendications 9 à 16, caractérisé en ce que, dans au moins l'un des évidements (4, 5) des éléments d'outil (2, 3), est prévu un dispositif d'estampage.
  18. Dispositif selon la revendication 17, caractérisé en ce que le dispositif d'estampage est conçu en tant que poinçon, et que, dans le mandrin (8), est formé un élément façonné, en tant que contre-pièce pour le façonnage réalisé par le dispositif d'estampage
  19. Dispositif selon la revendication 18, caractérisé en ce que le mandrin (8) ne présente pas de structures accessoires constantes longitudinalement.
  20. Dispositif selon l'une des revendications 9 à 19, caractérisé en ce que les évidements (4, 5), formés dans les éléments d'outil (2, 3) sont de conception différente.
  21. Dispositif selon l'une des revendications 9 à 20, caractérisé en ce que la section du dispositif de retenue (11) avec la plus faible épaisseur présente une hauteur qui est plus grande que l'épaisseur de la pièce découpée en tôle (B) à façonner.
  22. Dispositif selon l'une des revendications 9 à 21, caractérisé en ce que, sur le dispositif de retenue (11) est formée au moins une surface de renvoi (11b, 11c), qui, lorsque le dispositif de retenue (11) se trouve en position de service, est positionnée de sorte qu'elle renvoie en direction du mandrin (8) un bord longitudinal (B1, B2) de la pièce découpée en tôle (B) entrant en contact avec elle.
  23. Dispositif selon l'une des revendications 9 à 23, caractérisé en ce qu'un élément d'outil (102) est disposé de manière stationnaire.
  24. Dispositif selon l'une des revendications 9 à 23, caractérisé en ce que la plaque de base (G2) peut être déplacée dans la même direction que celle, dans laquelle s'effectue la modification de la position relative des éléments d'outil (102, 103).
  25. Dispositif selon l'une des revendications 9 à 24, caractérisé en ce que le mandrin (108) peut être déplacé dans la même direction de mouvement que celle dans laquelle s'effectue la modification de la position relative des éléments d'outil (102, 103).
  26. Dispositif selon l'une des revendications 9 à 25, caractérisé en ce que, sur la plaque de base (G2), sont formés des éléments façonnés (116, 117), qui sont aptes à coopérer avec des éléments façonnés correspondants de la pièce découpée en tôle (Bz) devant être déformée, afin de maintenir par emboîtement et / ou de pré-estamper la pièce découpée en tôle (Bz) concernée.
  27. Dispositif selon l'une des revendications 9 à 26, caractérisé en ce que, sur le mandrin (108), sont formés des éléments façonnés (116, 117), qui sont aptes à coopérer avec des éléments façonnés correspondants de la pièce découpée en tôle (Bz) devant être déformée, afin de maintenir par emboîtement et / ou de pré-estamper la pièce découpée en tôle (Bz) concernée.
  28. Dispositif selon l'une des revendications 9 à 27, caractérisé en ce que le dispositif dispose d'un hydroformage IHU.
EP05778094A 2004-09-24 2005-09-08 Procede et dispositif pour produire un profile creux a soudure longitudinale Not-in-force EP1796859B1 (fr)

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DE102004046687A DE102004046687B3 (de) 2004-09-24 2004-09-24 Verfahren und Vorrichtung zur Herstellung eines längsnahtgeschweißten Hohlprofils
PCT/EP2005/009632 WO2006034773A1 (fr) 2004-09-24 2005-09-08 Procede et dispositif pour produire un profile creux a soudure longitudinale

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EP1796859B1 true EP1796859B1 (fr) 2009-01-21

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EP (1) EP1796859B1 (fr)
JP (1) JP2008514429A (fr)
KR (1) KR20070051371A (fr)
CN (1) CN101065197B (fr)
AT (1) ATE421391T1 (fr)
DE (2) DE102004046687B3 (fr)
WO (1) WO2006034773A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011008997A1 (de) 2011-01-19 2012-04-26 Daimler Ag Verfahren zum Herstellen eines längsnahtgeschweißten Hohlprofils

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004041024B4 (de) * 2004-08-25 2006-07-06 Thyssenkrupp Steel Ag Verfahren und Vorrichtung zum Herstellen eines längsnahtgeschweißten Hohlprofils
DE102007021798B4 (de) 2007-05-07 2011-03-24 Karl Eugen Fischer Gmbh Vorrichtung zur Herstellung von Profilen
DE102008016748B3 (de) * 2008-03-31 2009-09-10 Lemuth Gmbh Verfahren und Vorrichtung zum Herstellen von Rohren
DE102010017022B4 (de) * 2010-05-19 2012-05-31 Thyssenkrupp Steel Europe Ag Verfahren zum Herstellen eines Hohlprofils, Stützkern zur Durchführung des Verfahrens sowie ein danach hergestelltes Profil
DE102010037533A1 (de) 2010-09-14 2012-03-15 Thyssenkrupp Steel Europe Ag Vorrichtung und Verfahren zur Herstellung zumindest teilweise geschlossener Hohlprofile mit geringer Taktzeit
DE102010037534A1 (de) * 2010-09-14 2012-03-15 Thyssenkrupp Steel Europe Ag Vorrichtung und Verfahren zur Herstellung von zumindest teilweise geschlossenen Hohlprofilen mit drehbaren Gesenkhälften und geringer Taktzeit
US9018560B2 (en) * 2011-02-28 2015-04-28 General Electric Company Repair alignment method and apparatus for turbine components
EP2529849B1 (fr) * 2011-05-31 2021-03-10 SMS group GmbH Dispositif et procédé de fabrication de tuyaux fendus à partir de plaques de tôle
CN102266884A (zh) * 2011-07-25 2011-12-07 江苏华阳金属管件有限公司 一种厚壁直管合口工艺
CN102699217B (zh) * 2012-05-24 2015-01-07 青岛华东工程机械有限公司 一种热水器外壳抱圆扣缝装置
DE102013106287A1 (de) * 2013-06-17 2014-12-18 Thyssenkrupp Steel Europe Ag Vorrichtung zur Herstellung mindestens eines Hinterschnitts in ein geschlitztes oder geschlossenes Blechprofil
DE102013013762B4 (de) 2013-08-19 2015-06-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Formdorn mit einem biegeelastisch verformbaren Druckmantel sowie Umformvorrichtung mit einem solchen Formdorn
DE102013220179B4 (de) * 2013-10-07 2015-06-25 Siemens Aktiengesellschaft Verfahren zur Herstellung von Behälterteilen für gekapselte Schaltanlagen und gekapselte Schaltanlage
ES2614554T3 (es) * 2014-04-30 2017-05-31 Salvagnini Italia S.P.A. Máquina de doblado de láminas metálicas
CN106881402B (zh) * 2017-03-23 2018-07-24 西安飞机工业（集团）有限责任公司 一种管状钣金零件的成形方法及成形模具
CN107116145B (zh) * 2017-06-28 2019-02-15 中国航发南方工业有限公司 锥筒成型模具
DE102018100989B3 (de) * 2018-01-17 2019-02-14 Benteler Automobiltechnik Gmbh Verfahren zum Herstellen eines gebogenen Torsionsprofils sowie Torsionsprofil
CN109047400A (zh) * 2018-09-13 2018-12-21 上海胜迪实业有限公司 内嵌式金属加热器成型装置
CN109570342B (zh) * 2018-11-08 2020-07-28 东莞市翔龙泰达实业有限公司 一种具有缝隙宽厚比小于1的产品的冲压工艺
CN111375691B (zh) * 2018-12-28 2022-04-12 航天海鹰(哈尔滨)钛业有限公司 一种钛合金薄壁筒形件预成型装置及预成型方法
CN110814081A (zh) * 2019-12-02 2020-02-21 福建捷思金属科技发展有限公司 一种薄壁铜管制造方法及其生产设备
CN111069596B (zh) * 2019-12-13 2022-03-08 安泰天龙钨钼科技有限公司 一种钼铼合金筒件的制备方法
CN114406554B (zh) * 2022-03-21 2023-04-18 重庆科技学院 一种用于x80管线钢焊管焊接和消除焊缝应力的装置
US20240165728A1 (en) * 2022-11-22 2024-05-23 Fca Us Llc Extruded weld joint backing insert

Family Cites Families (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7324077U (de) * 1973-09-27 Asdorfer Eisenwerk Gmbh Biegevorrichtung zum Rundbiegen von Blechzuschnitten, insbesondere zu Rohrschüssen
US1290578A (en) * 1916-06-08 1919-01-07 Pressed Bearing Company Inc Apparatus for forming lined bushings.
US1899143A (en) * 1929-02-18 1933-02-28 Union Metal Mfg Co Tube manufacture
US2077336A (en) * 1935-01-07 1937-04-13 Gen Motors Corp Apparatus for forming circular bushings
US2373163A (en) * 1942-06-15 1945-04-10 John F Cailloux Apparatus for reconditioning drill pipe
US2605732A (en) * 1945-04-10 1952-08-05 Air Reduction Tube welding machine
US2623973A (en) * 1951-01-18 1952-12-30 Smith Corp A O Pipe flash welder
DE966111C (de) * 1951-10-03 1957-07-11 Mannesmann Huettenwerke A G Vorrichtung zum Rundbiegen von Blechstreifen zu Rohren grossen Durchmessers
FR1254669A (fr) * 1960-04-20 1961-02-24 Méthode et appareil pour souder les tubes métalliques
US3285490A (en) * 1963-06-25 1966-11-15 Wallace Expanding Machines Apparatus for making tubular members
US3418706A (en) * 1967-09-25 1968-12-31 Charles S. White Method and apparatus for making bearings
US3662940A (en) * 1969-05-13 1972-05-16 Grotnes Machine Works Inc Method and apparatus for forming cylinders from strip material
US3609276A (en) * 1970-06-08 1971-09-28 Torin Corp Machine for producing welded bearings and the like
US3732614A (en) * 1970-09-10 1973-05-15 Emf Inc Method for making motor shells and the like
US4187406A (en) * 1976-09-13 1980-02-05 Grotnes Machine Works, Inc. Machine for welding seams in automotive wheel rim blanks
CA1033199A (fr) * 1978-01-16 1978-06-20 Cyril J. Astill Methode de fabrication de tubes a couture soudee
JPS54123571A (en) * 1978-03-20 1979-09-25 Koyo Seiko Co Molding apparatus of ring like product
US4395900A (en) * 1979-03-02 1983-08-02 Saurenman Phillip E Stiff metal ring and process for making it
JPS5938846B2 (ja) * 1979-05-22 1984-09-19 日本鋼管株式会社 厚肉鋼管の製造方法
US4466267A (en) * 1981-10-28 1984-08-21 Casler William A Process for forming curved structures, and the resulting structures
JPS59107776A (ja) * 1982-12-14 1984-06-22 Nippon Arm Kogyo Kk 金属管溶接時の開先部の圧締方法
US5011064A (en) * 1985-10-19 1991-04-30 Heinrich Fuss Method of manufacturing a double-walled tube
JPS632519A (ja) * 1986-06-23 1988-01-07 Toyo Seikan Kaisha Ltd チユ−ブの製造方法及び装置
JPS63127787A (ja) * 1986-11-17 1988-05-31 松下電器産業株式会社 二槽式洗濯機の制御装置
JPS63165022A (ja) * 1986-12-25 1988-07-08 Kawasaki Steel Corp 電縫鋼管の製造方法
US4944287A (en) * 1988-03-29 1990-07-31 Asahi Kogaku Kogyo K.K. Flexible tube of endoscope
JPH05123741A (ja) * 1991-09-06 1993-05-21 Keiaishiya Mikami Seisakusho:Kk パイプ製造装置
CN1026867C (zh) * 1992-04-21 1994-12-07 陕西省宝鸡石油钢管厂 多功能直缝焊管成型工艺及成型机组
US5494209A (en) * 1992-12-28 1996-02-27 Olin Corporation Method for the manufacture of an internally enhanced welded tubing
US5839644A (en) * 1994-04-08 1998-11-24 Windle; John W. L. Method of coupling and forming copper fittings with solder therein
WO1995029775A1 (fr) * 1994-04-29 1995-11-09 Qa Technology Company, Inc. Procede et appareil d'hydroformage de pieces a paroi mince
DE4432674C1 (de) * 1994-09-14 1996-02-22 Weil Eng Gmbh Vorrichtung und Verfahren zum Herstellen von Rohren
JP2845170B2 (ja) * 1995-06-23 1999-01-13 東洋製罐株式会社 立体形状を有する缶の成型システム、缶胴成型装置及びその製造方法
US5657922A (en) * 1995-07-14 1997-08-19 Univ Oklahoma State Machine and process for forming tapered or cylindrical utility poles from flat sheet metal
EP0761365B1 (fr) * 1995-09-04 2000-10-18 Elpatronic Ag Procédé et appareil pour le soudage à la molette de récipients
CH692910A5 (de) * 1996-04-22 2002-12-13 Elpatronic Ag Verfahren und Vorrichtung zum Schweissen, insbesondere zum Rollnathschweissen.
US6832547B2 (en) * 1996-10-16 2004-12-21 Fort James Corporation Embossing system including sleeved rolls
JP3441317B2 (ja) * 1996-10-21 2003-09-02 大和製罐株式会社 胴部に凹凸模様をもつ変形金属缶の製造方法
US5909907A (en) * 1997-03-21 1999-06-08 Hans Oetiker Ag Maschinen - Und Apparatefabrik Machine for automatically manufacturing puzzle-lock compression rings
DE19743436A1 (de) * 1997-10-01 1999-04-08 Georg Burger Verfahren zum Verformen eines Bauteils aus Blech und Vorrichtung hierzu
DE19827798A1 (de) * 1998-06-23 1999-12-30 Thyssenkrupp Stahl Ag Verfahren und Vorrichtung zum Herstellen von längsnahtgeschweißten Rohren aus ebenen Blechzuschnitten
DE19922309C1 (de) * 1999-05-14 2000-10-19 Smu Edelmann Gmbh Schließwerkzeug zur Herstellung von Rohren
AR027371A1 (es) * 2000-02-10 2003-03-26 Envases Uk Ltd Deformacion de cuerpos de pared delgada
JP3925370B2 (ja) * 2002-09-19 2007-06-06 住友金属工業株式会社 液圧バルジ加工用異形素管の製造方法及び装置
DE102004041024B4 (de) * 2004-08-25 2006-07-06 Thyssenkrupp Steel Ag Verfahren und Vorrichtung zum Herstellen eines längsnahtgeschweißten Hohlprofils
US7325435B2 (en) * 2005-11-15 2008-02-05 Noble International, Ltd. Method of manufacturing, apparatus and resulting irregular shaped cross section tubes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011008997A1 (de) 2011-01-19 2012-04-26 Daimler Ag Verfahren zum Herstellen eines längsnahtgeschweißten Hohlprofils

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US7909226B2 (en) 2011-03-22
WO2006034773A1 (fr) 2006-04-06
JP2008514429A (ja) 2008-05-08
DE502005006547D1 (de) 2009-03-12
US20090114703A1 (en) 2009-05-07
DE102004046687B3 (de) 2006-06-01
CN101065197B (zh) 2010-12-22
CN101065197A (zh) 2007-10-31
EP1796859A1 (fr) 2007-06-20
ATE421391T1 (de) 2009-02-15

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