WO2005046898A2 - Outil et procede de decoupe d'un profile creux - Google Patents

Outil et procede de decoupe d'un profile creux Download PDF

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Publication number
WO2005046898A2
WO2005046898A2 PCT/EP2004/011454 EP2004011454W WO2005046898A2 WO 2005046898 A2 WO2005046898 A2 WO 2005046898A2 EP 2004011454 W EP2004011454 W EP 2004011454W WO 2005046898 A2 WO2005046898 A2 WO 2005046898A2
Authority
WO
WIPO (PCT)
Prior art keywords
hollow profile
cutting
tool
die
cutting device
Prior art date
Application number
PCT/EP2004/011454
Other languages
German (de)
English (en)
Other versions
WO2005046898A3 (fr
Inventor
Helmut Augustin
Stephan HÖFIG
Carsten Rogowski
Original Assignee
Daimlerchrysler Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daimlerchrysler Ag filed Critical Daimlerchrysler Ag
Priority to US10/577,402 priority Critical patent/US20070144228A1/en
Priority to CA002543808A priority patent/CA2543808A1/fr
Priority to JP2006537106A priority patent/JP2007534489A/ja
Priority to EP04765946A priority patent/EP1684924A2/fr
Publication of WO2005046898A2 publication Critical patent/WO2005046898A2/fr
Publication of WO2005046898A3 publication Critical patent/WO2005046898A3/fr

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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/047—Mould construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/035—Deforming tubular bodies including an additional treatment performed by fluid pressure, e.g. perforating
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/28—Perforating, i.e. punching holes in tubes or other hollow bodies

Definitions

  • the invention relates to a tool for cutting a hollow profile according to the preamble of claim 1 and an associated method according to the preamble of claim 9.
  • a method for cutting a hollow body is known from DE 197 24 037 C2. The method is based on a combined application of mechanical cutting along a first cutting edge and internal high-pressure cutting along a second cutting edge. The fact that the hollow body is deformed by the hydroforming process is exploited in such a way that the hollow body is preferably severed transversely to its longitudinal extent after internal hydroforming has already been carried out.
  • a precision cutting method and an associated device are known from DE 100 30 882 A1.
  • a punched strip is supported in a first stamping step by means of at least one hold-down device against a fixed surface and the later finished part is pressed into a stamping die at the same time or at different times, preferably against the spring force of a spring base. This creates a sliding surface on the lateral surfaces of the finished part.
  • the punched strip is then supported in a second separation step following the embossing step by means of at least one hold-down device on a solid surface and the subsequent finishing step part separated with a separating stamp in a separating die.
  • a method for machining workpieces is known from DE 199 01 304 AI.
  • at least one station has essentially vertically moving machining tools and at least one further station has essentially horizontally moving machining tools which act on the workpieces.
  • at least two, preferably axially symmetrical, workpieces that leave a space between them are machined in each station.
  • a device suitable for carrying out the method is also known.
  • the device which is designed, for example, as a pressing tool, makes it possible, for example after deep-drawing a sheet metal workpiece, to carry out the subsequent cutting / hole operations on spatially differently oriented surfaces of the workpiece and thereby to increase the performance of the device.
  • a reusable tool pressing with stamp and die which can be moved relative to one another by the movement of the stamp.
  • a counter punch is arranged inside the die, which can be moved independently and with variable force via hydraulic cylinders accommodated in the tool.
  • a counter die is arranged adjacent to the punch in the tool, which can also be moved independently and with variable force via hydraulic cylinders accommodated in the tool.
  • the decisive factor here is that the counter-punch, as part of the tool, can be moved independently of this and with any desired and adjustable force, which defines an additional path.
  • This counter stamp is part of the tool, so that the additional path now creates a reusable tool.
  • a tool for trimming drawn parts is known from DE 101 36 792 AI.
  • the present invention deals with the problem of specifying a method for hydroforming, with which in particular a rationalized manufacturing process can be achieved. Furthermore, a tool is to be created that is suitable for the above-mentioned method, with which various method steps in particular can be combined.
  • the invention is based on the general idea of designing a tool for cutting a flange on a hollow profile also for shaping the hollow profile using the hydroforming process, the tool having at least one cutting device which is adjustable in the transverse direction of the hollow profile and runs parallel to the longitudinal extent.
  • a side of the cutting device facing the hollow profile is designed as a shaping die wall, against which the hollow profile bears after the cutting process during the subsequent hydroforming.
  • the tool according to the invention thus cuts off at least partially a flange running in the longitudinal direction of the hollow profile parallel to the longitudinal direction with a cutting edge formed on the cutting device, in that the cutting edge adjusts in the transverse direction of the hollow profile.
  • the side of the device facing the hollow profile is used as a shaping matrix wall, to which the hollow profile with an outside then adjoins. High pressure forming.
  • the tool according to the invention provides that a cutting process on the hollow profile roller is completed before the hydroforming process begins.
  • the solution according to the invention thus offers the advantage that two process steps, namely the cutting of the flange and the subsequent hydroforming, can be carried out in one production step in a single tool, which results in a rationalized production process.
  • the solution according to the invention thus contributes to streamlining the manufacturing process and thereby to achieving time and cost advantages.
  • the tool has a lower die and an upper die, which are adjustable relative to one another.
  • the cutting device is either integrated into one of the dies and the cutting edge then forms an integral part of the respective die, or the cutting edge is designed as a separate component and fixed in position on one of the dies, or the cutting device is arranged on one of the dies in a stroke-adjustable manner.
  • the illustrated variants of the arrangement of the cutting device on the tool already indicate the wide possibilities that the invention opens up with regard to process-optimized arrangement variants of the cutting devices.
  • Designing the cutting device as a separate component, which is fixed in position on one of the dies offers the advantage, for example, that after a large number of cutting processes, the cutting device or the cutting edge can be replaced simply and quickly, and the maintenance effort of the tool is thereby reduced can.
  • the lower weight of the cutting device that has to be moved results in a significantly quieter operation of the tool compared to the upper or lower die.
  • the integration of the cutting device in one of the dies or the formation of the cutting edge as an integral Component has the advantage that ⁇ a particularly precise and powerful cutting process can be achieved.
  • At least one hold-down device is provided in the area of the cutting edge, which fixes the flange of the hollow profile at least during the cutting process.
  • a hold-down device in conjunction with a positioning device, which presses the hollow profile before and during the cutting and forming process against the side of the cutting device facing the hollow profile, ensures that the hollow profile is held in position during the cutting process, thereby ensuring precise and high-quality cutting.
  • the hold-down device also ensures that the hollow profile is always positioned the same way within the tool, as a result of which a high, reproducible dimensional accuracy and thus uniformity of the hollow profiles to be produced is achieved.
  • a cjuer embossing die which is adjustable for the longitudinal extension of the hollow profile can expediently be provided, which stamps the outside of the hollow profile after the shaping process.
  • the solution according to the invention offers the advantage, in addition to a cutting and internal high-pressure forming process, of carrying out an embossing process almost simultaneously, but above all without a tool change, so that a further production step can be integrated into the respective work station with the tool according to the invention.
  • the stamping die can be arranged such that it crosses and penetrates the cutting device in a corresponding opening during the stamping process.
  • the embossing stamp thereby embosses an outer side which lies against the die wall of the cutting device the hollow profile against the internal high pressure, which leads to a particularly exact and dimensionally accurate embossing.
  • At least one punch is provided coaxially in the embossing punch, which punches the hollow profile after the embossing process has been completed.
  • punching can now also be integrated as a further work step in the same tool, which in turn results in time and cost advantages.
  • the solution according to the invention ensures that the holes produced by the punch have a high degree of position and shape accuracy and that the quality of the hollow profiles produced can thereby be significantly increased. In comparison to previous manufacturing processes, in which the holes were subsequently made in the already shaped hollow profiles, subsequent deformation and thus inaccuracy of the dimensions of the hollow profile can now be avoided.
  • the solution according to the invention offers the great advantage that the embossing stamp does not adversely affect the dimensional accuracy, that is to say the position and the shape of the holes produced, by the embossing.
  • the tool according to the invention can first be punched and then embossed after hydroforming, or vice versa.
  • FIG. 1 shows a cross section through a tool according to the invention with an inserted hollow profile before the cutting or forming process
  • FIG. 2 shows a representation as in FIG. 1, but with the positioning device actuated
  • FIG. 3 shows a cross section through the tool according to the invention after the cutting and forming process and before the embossing or locomotive process
  • FIG. 4 shows a representation as in FIG. 3, but with the embossing and punching process completed
  • Fig. 5 shows a cross section through the tool with the upper and lower dies open.
  • a tool 1 according to the invention which is designed to cut a flange 3 on a hollow profile 2 has a lower die 7 and an upper die 8, which are adjustable relative to one another.
  • the upper die 8 can be adjusted to the lower die 7 here.
  • the lower die 7 can be adjusted to the upper die 8 or that both are adjustably mounted.
  • the tool 1 has at least one cutting device 4 running parallel to the longitudinal extension with a cutting edge 5 which is adjustable in the transverse direction of the hollow profile 2 relative to the hollow profile.
  • the cutting device 4 can be integrated in one of the matrices 7 or 8, the cutting edge
  • the cutting device 4 can also be designed as a separate component which is fixed in position on one of the two dies 7 or 8, here the top die 8.
  • the cutting device 4 can be arranged on one of the matrices 7 or 8 in such a way that it can be adjusted in terms of stroke relative to the respective die 7, 8.
  • a particularly powerful and thereby precise cutting or cutting through of the flange 3 can be achieved, as a result of which the quality of a later end product can be significantly increased.
  • the design of the cutting device 4 as a separate component, which is fixed in position on one of the matrices 7 or 8, offers the great advantage that the exchange of the cutting edge 4, which can be designed, for example, as a cutting knife, is simple and inexpensive. For example, hardened metals which have a particularly long service life can be considered as cutting edge 5.
  • the advantage is that the cutting process starts from a closing process of the tool 1, that is to say moving the upper die 8 towards one another onto the lower die 7, can be decoupled.
  • a shaping die wall 17 is formed, against which the hollow profile 2 attaches after the cutting process and during the subsequent internal high-pressure forming. sets. 1 to 5 in cross section, the tool 1 is designed, for example, in such a way that the 0 upper die 8 and the lower die 7 each have an L-shaped shape, which when moved together form a cavity 14 in which the hollow profile 2 can be formed with internal high pressure.
  • This cavity 14 is bounded on at least one side by the die wall 17 of the cutting device 4.
  • a positioning device 9 is provided on the tool 1, which presses the hollow profile 2 against the side 6 of the cutting device 4 facing the hollow profile 2, ie on the die wall 17 thereof, before the cutting and forming process.
  • the positioning device 9 can be designed, for example, as a stamp acted upon by spring force or hydraulic pressure, which is arranged in a retractable and retractable manner in one of the dies 7 or 8, here in the lower die 7. 2, the positioning device 9 is actuated and in the actuated state presses the hollow profile 2 against the side 6 of the cutting device 4.
  • At least one hold-down device 10 is provided, which fixes the flange 3 of the hollow profile 2 at least during the cutting process.
  • a stair-like design of the cutting edge 5 can also provide a second hold-down device 10 ⁇ , which fixes the hollow profile 2 in position in the forming process or embossing and punching process following the cutting process.
  • an embossing die 11 is provided which is adjustable transversely to the longitudinal extent of the hollow profile 2 and which embosses the outside of the hollow profile 2 after the shaping process (cf. FIG. 4).
  • the embossing die 11 can preferably be actuated hydraulically and acts during embossing against an internal high pressure pi which prevails within the hollow profile 2.
  • the stamp 11 can be useful be arranged so that it crosses and penetrates the cutting device 4 after the cutting process and during the stamping process in a corresponding opening 12. During the cutting process, the stamp 11 moves with the cutting device 4 or the upper die 8 transversely to its embossing direction. It is conceivable here that, for example, an embossing surface 15 formed on the end face of the embossing die 11 is part of the shaping die wall 17 of the cutting device 4.
  • the hollow profile 2 is embossed against the internal high pressure pi and after the cutting process, so that an additional but optional working step can be carried out with the tool 1 with the embossing.
  • At least one punch 13 is provided in the punch 11 and coaxially therewith, which punches the hollow profile 2 after the completed stamping process.
  • An embossing direction of the embossing die 11 is parallel to a direction of movement of the punch 13.
  • the tool according to the invention thus integrates another likewise optional work step, namely the punching of the hollow profile 2 into the tool 1, as a result of which the manufacturing process itself can be greatly rationalized.
  • Embossing or punching against the internal high pressure pi also has the advantage that previously created embossings do not adversely affect through the punching or previously punched holes through the embossing due to the internal high pressure pi, so that a high quality of the hollow profiles 2 produced is achieved can be.
  • a possible method for cutting the hollow profile 2 or for forming, embossing and / or punching the hollow profile 2 is briefly explained below: 1, the hollow profile 2 is inserted into the tool 1, the two dies 7 and 8 being positioned in the open state, that is to say at a distance from one another. After inserting the hollow profile 2, which is still an unspecified hollow profile blank at this stage, the positioning device 9 according to FIG. 2 presses the hollow profile 2 against the side 6 of the cutting device 4 facing the hollow profile 2, before the cutting and shaping process against the die wall 17. When positioning as shown in FIG. 2, the tool is still in a partially open state, so that a simple adjustment of the hollow profile 2 in the direction of the cutting device 4 is possible.
  • the cutting process takes place after positioning. 3, the upper die 8 moves towards the lower die 7 and cuts off the flange 3 of the hollow profile 2 with the cutting edge 5 located at the front of the cutting device 4 in the direction of movement. At least during the cutting process, at least one holding-down device 10 arranged in the area of the cutting edge 5 fixes the flange 3 of the hollow profile 2. After the cutting process has been completed, a second holding-down device 10 "fixes the remaining flange stump of the hollow profile 2 and thereby fixes the hollow profile 2 in its position The cutting waste shown falls after the cutting process through an ejection chute 16 which, according to FIGS. 1 to 5, runs vertically in the direction of movement of the cutting device 4 in the lower die 7.
  • the cutting of the flange 3 is brought about by closing the tool 1, that is to say by moving the upper die 8 towards the lower die 7.
  • the cutting process is effected only after the tool has been closed, that is to say when the upper die 8 bears against the lower die 7, by means of a stroke-adjustable cutting device 4, which is designed, for example, as a separate component.
  • the hollow profile blank 2 V is formed by internal high-pressure forming and changes in size and shape as shown in FIG
  • the positioning force of the positioning device 9 is (significantly) smaller than the forces which occur during the shaping and which expand the hollow profile 2.
  • an embossing die 11 which can be adjusted transversely to the longitudinal direction of the hollow profile 2, according to FIG. 4, can emboss on the hollow profile 2.
  • Such an embossing process can optionally be selected. 4 the embossing die 11 moves transversely to the longitudinal extent of the hollow profile 2 through the opening 12 in the cutting device 4 and embosses an indentation into an outer wall of the hollow profile 2 with the embossing surface 15 attached at the front in the embossing direction.
  • a punch 13 arranged coaxially in the stamping punch 11 can punch the hollow profile 2 after the stamping process has been completed (cf. FIG. 4).
  • the punch 13 moves transversely to the direction of movement of the cutting device 4 and parallel to the embossing direction of the punch 11 and penetrates an outer wall of the hollow profile 2.
  • a punch 13 is provided in each case according to FIGS. 3 and 4. However, it is also possible for a plurality of punches 13 to be arranged. It is also conceivable that perforation takes place without embossing the hollow profile 2. Because.
  • the embossing surface 15 of the embossing die 11, which is arranged, for example, in the opening 12 of the cutting device 4, can form part of the side 6 of the cutting device 4 designed as a forming die wall 17.
  • the opening 12 only opens during an embossing or punching process and is closed during the cutting process or during the shaping process, as a result of which the shaping die wall 17 is formed entirely by the side 6 of the cutting device 4 facing the hollow profile 2 ,
  • the tool 2 is opened after the cutting and shaping process and / or embossing process and / or punching process by the upper die 8 moving away from the lower die 7.
  • the die 11 and the punch 13 have been inserted into the tool 1 or the cutting device 4 at least to such an extent that the two dies 7 and 8 can be easily moved apart and the hollow profile 2 can be removed from the tool 1.
  • the invention provides, in the case of a tool 1, which is designed for cutting a flange 3 of a hollow profile 2 and for shaping the hollow profile 2 according to the hydroforming process, to provide a cutting device 4 with a cutting edge 5 which runs parallel to the longitudinal extent and in the transverse direction of the hollow profile 2 is adjustable and in which a side 6 of the cutting device facing the hollow profile 2 is designed as a shaping matrix wall 17, against which the hollow profile 2 rests after the cutting process during hydroforming.
  • the invention thus makes it possible to combine several work steps, for example trimming, shaping, the embossing and punching of the hollow profile 2 in a production station, so that the tool 1 according to the invention can be used to perform several previously separate work steps promptly and without removing the hollow profile 2 from the tool 1.
  • the working steps can be embossed and punched optionally, so that cutting the flange 3 and subsequent shaping and / or subsequent stamping and / or subsequent punching can be carried out with the tool 1 according to the invention.
  • the side 6 of the cutting device 4, which is designed as a shaping matrix wall 17, provides a multifunctional use of the cutting device 4, the cutting device 4 being able to be implemented in a structurally simple manner and at the same time being a particularly successful constructive solution.
  • the embossing die 11 or punch 13 acting against the internal high pressure pi can also be used for an exact embossing or perforation of the hollow profile 2, in which the embossing and punching do not adversely affect one another, so that overall a high-quality end product can be achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Punching Or Piercing (AREA)

Abstract

L'invention concerne un outil (1) permettant la découpe d'un profilé creux (2). Selon l'invention, l'outil (1) permet la découpe d'un flasque (3) sur le profilé creux (2) et le formage du profilé creux (2) selon le procédé de formage par haute pression interne. Cet outil (1) présente également au moins un dispositif de découpe (4) s'étendant parallèlement à la longueur et pourvu d'une arête de coupe (5) qui se règle transversalement au profilé creux (2) et une face (6), tournée vers le profilé creux (2), du dispositif de coupe (4), est réalisée sous la forme d'une paroi matrice (17) destinée au façonnage et avec laquelle, lors du façonnage par haute pression interne, le profilé creux (2) vient en contact. En outre, l'outil (1) présente un outil d'estampage (11) intégré ainsi qu'un poinçon (13) formé coaxialement au précédent de telle manière que non seulement la découpe et le façonnage par haute pression interne puissent être réalisés mais aussi éventuellement un estampage et/ou une perforation du profilé creux (2).
PCT/EP2004/011454 2003-10-28 2004-10-13 Outil et procede de decoupe d'un profile creux WO2005046898A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US10/577,402 US20070144228A1 (en) 2003-10-28 2004-10-13 Tool and method for cutting a hollow profile
CA002543808A CA2543808A1 (fr) 2003-10-28 2004-10-13 Outil et procede de decoupe d'un profile creux
JP2006537106A JP2007534489A (ja) 2003-10-28 2004-10-13 中空形材の切断工具及び切断方法
EP04765946A EP1684924A2 (fr) 2003-10-28 2004-10-13 Outil et procede de decoupe d'un profile creux

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10350156.8 2003-10-28
DE10350156A DE10350156B3 (de) 2003-10-28 2003-10-28 Werkzeug und Verfahren zum Schneiden eines Hohlprofils

Publications (2)

Publication Number Publication Date
WO2005046898A2 true WO2005046898A2 (fr) 2005-05-26
WO2005046898A3 WO2005046898A3 (fr) 2007-05-03

Family

ID=32981367

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/011454 WO2005046898A2 (fr) 2003-10-28 2004-10-13 Outil et procede de decoupe d'un profile creux

Country Status (6)

Country Link
US (1) US20070144228A1 (fr)
EP (1) EP1684924A2 (fr)
JP (1) JP2007534489A (fr)
CA (1) CA2543808A1 (fr)
DE (1) DE10350156B3 (fr)
WO (1) WO2005046898A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109590676A (zh) * 2018-11-02 2019-04-09 陈志城 一种新型液压成型手推车的制备工艺

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19724037A1 (de) * 1997-06-06 1998-12-10 Audi Ag Verfahren zum Schneiden eines Hohlkörpers

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4035938A1 (de) * 1990-11-03 1992-05-07 Manfred Wanzke Mehrwegwerkzeug fuer pressen
US5070717A (en) * 1991-01-22 1991-12-10 General Motors Corporation Method of forming a tubular member with flange
DE19647963C2 (de) * 1996-11-20 1998-11-26 Daimler Benz Ag Verfahren und Vorrichtung zur Herstellung von Löchern am Umfang von Hohlprofilen
DE19733473C2 (de) * 1997-08-02 2000-07-06 Daimler Chrysler Ag Verfahren und Vorrichtung zur Herstellung einer Anbindung eines lambda-Sondenhalters an ein Abgasrohr
DE19901304B4 (de) * 1999-01-15 2005-04-14 Audi Ag Verfahren und Vorrichtung zum Bearbeiten von Werkstücken
DE10030882A1 (de) * 2000-06-23 2002-01-03 Prometall Werkzeugbau Gmbh Präzisionsschneidverfahren und Vorrichtung
DE10136792B4 (de) * 2001-07-27 2005-10-13 Audi Ag Werkzeug zum Beschneiden von Ziehteilen
US6591648B1 (en) * 2002-06-24 2003-07-15 Greenville Tool & Die Company Method of stamping and piercing a tube
US7249481B1 (en) * 2006-05-01 2007-07-31 Ford Global Technologies, Llc Process for forming a hydroformed automotive component with integrated weld flange

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19724037A1 (de) * 1997-06-06 1998-12-10 Audi Ag Verfahren zum Schneiden eines Hohlkörpers

Also Published As

Publication number Publication date
WO2005046898A3 (fr) 2007-05-03
US20070144228A1 (en) 2007-06-28
EP1684924A2 (fr) 2006-08-02
JP2007534489A (ja) 2007-11-29
DE10350156B3 (de) 2004-10-14
CA2543808A1 (fr) 2005-05-26

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