EP1138408A2 - Méthode de production des corps creux à grand volume - Google Patents

Méthode de production des corps creux à grand volume Download PDF

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Publication number
EP1138408A2
EP1138408A2 EP01105541A EP01105541A EP1138408A2 EP 1138408 A2 EP1138408 A2 EP 1138408A2 EP 01105541 A EP01105541 A EP 01105541A EP 01105541 A EP01105541 A EP 01105541A EP 1138408 A2 EP1138408 A2 EP 1138408A2
Authority
EP
European Patent Office
Prior art keywords
hydrostatic
die
expansion
welding
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP01105541A
Other languages
German (de)
English (en)
Other versions
EP1138408A3 (fr
Inventor
Stefan Dr.-Ing. Geissler
Karl Norbert Lohmann
Theodor Ostermann
Matthias Adolph
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.)
HDE Solutions GmbH
Original Assignee
hde Metallwerk GmbH
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 hde Metallwerk GmbH filed Critical hde Metallwerk GmbH
Publication of EP1138408A2 publication Critical patent/EP1138408A2/fr
Publication of EP1138408A3 publication Critical patent/EP1138408A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/02—Making hollow objects characterised by the structure of the objects
    • 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
    • B21D26/041—Means for controlling fluid parameters, e.g. pressure or temperature
    • 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
    • B21D26/049—Deforming bodies having a closed end
    • 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
    • B21D51/00—Making hollow objects
    • B21D51/02—Making hollow objects characterised by the structure of the objects
    • B21D51/10—Making hollow objects characterised by the structure of the objects conically or cylindrically shaped objects
    • 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
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/18—Making hollow objects characterised by the use of the objects vessels, e.g. tubs, vats, tanks, sinks, or the like
    • 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
    • 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
    • Y10T29/49826—Assembling or joining
    • Y10T29/49904—Assembling a subassembly, then assembling with a second subassembly

Definitions

  • the invention first relates to a method for Production of large-volume hollow bodies at least partly through hydrostatic forming of cold formable Metal within a mold cavity Die.
  • Such a method is, for example, from known from DE 44 36 436 of the applicant.
  • two become flat sheets of cold-formable metal using the Hydroforming process two matching halves a large-volume hollow body created in Area of their "equator line" all the way to a hollow body be welded.
  • the object of the invention is therefore to a new process for the production of large-volume To create hollow bodies, which with less material as well as low costs, higher process reliability having.
  • the method according to the invention has numerous advantages.
  • the main advantage is that one against the background of the final shape of one to be created large-volume hollow body first a sheet metal blank can create after the forming of the Cutting sheet metal into a three-dimensional, pressure-tight one Body with at least one opening circumferentially and materially adapted to the final shape of the hollow body becomes.
  • Provide body with a large cross section is in the areas in which the final shape of the hollow body has a smaller cross section, the body also has a small cross-section is.
  • conical, cylindrical and sectionally conical or cylindrical Basic bodies are created, which are later hydrostatic be expanded.
  • the invention further relates to a method for the production of large-volume hollow bodies according to Claim 2.
  • this method according to the invention has the basic advantages cited to claim 1 on, in addition through the tubular Body more variation options with regard to Final shape of the hollow body exist.
  • This method according to the invention avoids elaborate sealing through internal adaptation or External adaptation of two openings in that already an opening of the tubular body in front of the hydrostatic expansion is closed. This You can use a less technically elaborate die and is therefore cheaper.
  • the body will die before the hydrostatic Widening pressed into a flat oval shape. This has the advantage that tubular bodies that actually are too large for the die's engraving cavity moving the die halves into the die fit in. Otherwise it would be disadvantageous Way necessary before inserting the body into the die the body in a separate device to bring the flat oval shape.
  • Procedures will follow the expansion and before welding the closure piece inside the Hollow body installation parts arranged. This is with these Procedure due to the still existing opening possible in a simple manner, on the one hand none Precautions must be taken to include one of foreign bodies falling into the hollow body to avoid.
  • Procedure already pre-assembled from the side Assemblies in the largely closed Body are retracted. This increases process reliability noticeably.
  • a circumferential area of the intended opening Collar formed during hydrostatic expansion is used as a welded socket.
  • Procedure is in the hollow body before its hydrostatic Widening a liquid displacing element introduced, which creates the procedural advantage that the filling and emptying times are significantly lower.
  • a liquid displacing Element can be on the adapter, for example be attached.
  • the invention also relates to a large volume Hollow body, in particular motor vehicle tank and Like. Made by using the aforementioned Method.
  • a very special one on the space available in the motor vehicle body can have a coordinated shape, so that the available space is used optimally becomes.
  • Such a hollow body 10 is made from a cold-formable one Sheet metal blank 11 (see FIG. 1) produced, which in a first process step by means of a Roll up or other process into a tubular Body 12 (see FIG. 2) with two openings A1 and A2 is reshaped.
  • the connection of the opposite Sheet metal end faces are made using a Butt weld preferably with the help of a tungsten inert gas welding source, using other welding methods, such as. laser welding can be used (See weld S1 in Fig. 2).
  • the sheet metal blank 11 is based on the desired Final shape of the hollow body 10 determined so that conical, cylindrical and / or sectionally conical or cylindrical bodies 12 arise after the curling process, it is important that at both ends of the Tubular body 12 cylindrical cross sections available are.
  • the shape of the sheet metal blank 11 or itself resulting tube body 12 is tuned to the different sizes of the final shape of the hollow body 10 in certain areas.
  • the goal is in everyone Area of the tubular body 12 with an expansion step and the maximum possible shaping of the material the final contour to reach the hollow body 10.
  • the expansion of the tubular body 12 in one process step is important because it does not work hardening can arise and thus a complex intermediate annealing is avoided.
  • tubular Body 12 by means of a weld S2 Cap 13 is welded.
  • the cap 13 may vary their geometry also through a hydroforming process or be produced by deep drawing. Different to 3 and 4 is preferred in the tubular body 12 through the larger opening closed a cap because of the smaller diameter the other opening for adaptation and sealing requires lower side locking forces.
  • the one shown in Fig. 4, one-sided by the Cap 13 sealed tube body 12 is then - how 5 - inserted into a die 14, which to a die upper part 15 and a lower die part 16 exists.
  • the die 14 shows an engraving 17 of the Upper die part 15 and an engraving 18 of the lower die part 16 with which the final shape of the hollow body 10 is created shall be.
  • FIG. 6 is the die with an inserted hollow body 10 after the so-called pressing of the tubular Body 12 shown in a flat oval state.
  • the sealing surfaces 19 of FIG. 1 can be seen on the one hand Die upper part 15 and lower die part 16, the sealing lie on one another.
  • the one displacer component 21 has. With the help of the displacer component 21 the amount of hydraulic fluid required for the hydroforming process significantly reduced, which reduces the filling and Emptying times are greatly reduced. After Filling the tubular body 12 with the pressure fluid ultimately finds the moving together of Upper part and lower part 15, 16 instead.
  • Channels for the hydraulic fluid are available in the drawings are not shown.
  • the end contour is from the tubular Body 12 emerging hollow body 10th still recognizable within the die 14.
  • the outer peripheral surface has a pressure of up to approx. 1,000 bar of the tubular body 12 completely the engravings 17 and 18 of the upper die part 15 and lower die part 16 created.
  • the removal the adapter 20, the removal of the hollow body 10 from die 14 as well as cleaning and drying of the hollow body 10 can in a further step in the present case through the opening A2
  • Internals for a motor vehicle tank, namely for example a pump 22 and breakwater 23, can be installed (see Fig. 9). It is also possible - as not shown - that at that time or at the time shown in Fig. 8 next to the Separation of a sealing end 24 also additionally required openings, e.g. for the arrangement of a tank filler neck, be created.
  • the final hollow body is in FIG. 10 10 to recognize that the opening A2 in the meantime by a weld S3 with a further cap 25 has been locked.
  • This in the exemplary embodiment hollow body 10 provided as a motor vehicle tank naturally have a completely different shape and size than previously described and illustrated Embodiment.
  • the example described serves just the simple representation and description of the method according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
EP01105541A 2000-03-31 2001-03-06 Méthode de production des corps creux à grand volume Withdrawn EP1138408A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10016025A DE10016025B4 (de) 2000-03-31 2000-03-31 Verfahren zur Herstellung von Hohlkörpern
DE10016025 2000-03-31

Publications (2)

Publication Number Publication Date
EP1138408A2 true EP1138408A2 (fr) 2001-10-04
EP1138408A3 EP1138408A3 (fr) 2002-06-26

Family

ID=7637111

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01105541A Withdrawn EP1138408A3 (fr) 2000-03-31 2001-03-06 Méthode de production des corps creux à grand volume

Country Status (5)

Country Link
US (1) US6684475B2 (fr)
EP (1) EP1138408A3 (fr)
JP (1) JP2001353546A (fr)
KR (1) KR20010094972A (fr)
DE (1) DE10016025B4 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE375218T1 (de) * 2001-10-17 2007-10-15 Corus Staal Bv Verfahren zum herstellen eines behälters für ein unter druck stehendes fluid, und solcher behälter
US8516947B1 (en) * 2003-04-22 2013-08-27 Food Equipment Technologies Company, Inc Food equipment housing with arcuate panels
CN100431733C (zh) * 2006-10-11 2008-11-12 梁雪华 一种液胀成型工艺
US7832617B2 (en) * 2007-03-30 2010-11-16 Ashcroft, Inc. Adapter assembly and method of manufacture
DE102009010490A1 (de) * 2009-02-25 2010-09-02 Amborn, Peter, Dr. Ing. Verfahren zur Herstellung eines Hohlkörpers durch Beaufschlagung eines solchen in einer Kavität einliegenden Hohlkörperrohlings mit Innendruck unter erhöhter Temperatur
TR201807528T4 (tr) * 2014-01-31 2018-06-21 C N G V D O O İç metal kaplamaya sahip yüksek-dirençli kompozit tanklar ve söz konusu yöntemle meydana getirilen tanklar.
DE102016123265A1 (de) * 2016-12-01 2018-06-07 Linde + Wiemann SE & Co. KG Verfahren und Halbzeug zur Herstellung eines wenigstens partiell gehärteten Profilbauteils
CN113319185B (zh) * 2021-06-08 2023-04-11 哈尔滨工业大学 一种大直径薄壁筒形件流体压力成形装置及成形方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE474713A (fr) *
US2503190A (en) * 1947-04-07 1950-04-04 Mcnamar Boiler & Tank Company Method of forming spherical containers
FR2228551A1 (en) * 1973-05-08 1974-12-06 Eta Sa Method of forming hollow sheet metal sphere - metal cylinder deformed by internal water pressure within spherical mould
JPS5183062A (fr) * 1975-01-17 1976-07-21 Yamaha Motor Co Ltd
JPS5396963A (en) * 1977-02-04 1978-08-24 Yamaha Motor Co Ltd Manufacturing method of fuel tank for autoobicycle
GB2334472A (en) * 1998-02-18 1999-08-25 Nippon Oxygen Co Ltd Metal vessel and fabrication method for the same

Family Cites Families (16)

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DE372360C (de) 1923-03-27 August Schwarzer Selbsttaetiger Hebelverschluss fuer die innere Tuer der Heizoeffnung von Zimmeroefen
US3572073A (en) * 1969-03-10 1971-03-23 Walter B Dean Method of shaping a thin-walled body
GB1374977A (en) * 1970-12-02 1974-11-20 Fairey Stainless Ltd Double-walled containers and their manufacture
CH620166A5 (fr) * 1976-08-25 1980-11-14 Udo Schuetz
AT347207B (de) * 1976-12-21 1978-12-11 Voest Ag Verfahren zum senkrecht-stumpfschweissen von blechen, insbesondere von vertikalstoessen von grossraumbehaeltern
US4744237A (en) * 1987-05-06 1988-05-17 Ti Automotive Division Of Ti Canada Inc. Method of forming box-like frame members
DE3906957A1 (de) * 1988-12-05 1990-09-06 Kuhn Rainer Verfahren zur herstellung von rohrartigen bauteilen
GB9114444D0 (en) * 1991-07-04 1991-08-21 Cmb Foodcan Plc Apparatus and method for reshaping containers
DE4436436C2 (de) * 1994-10-12 1996-08-22 Hde Metallwerk Gmbh Verfahren zum hydrostatischen Umformen von insbesondere ebenen Blechen aus kaltumformbarem Metall und Vorrichtung durch Durchführung des Verfahrens
DE59606011D1 (de) * 1995-09-04 2000-11-23 Elpatronic Ag Bergdietikon Verfahren und Vorrichtung zum Rollnahtschweissen von Behältern
DE19719531A1 (de) * 1997-05-09 1998-11-12 Huber & Bauer Gmbh Verfahren zum Herstellen eines im ganzen quaderförmigen Blechgehäuses, insbesondere einer Backröhre
JPH11225890A (ja) * 1998-02-18 1999-08-24 Nippon Sanso Kk 金属製容器とその製造方法
US6216509B1 (en) * 1998-08-25 2001-04-17 R.J. Tower Corporation Hydroformed tubular member and method of hydroforming tubular members
DE19851259A1 (de) * 1998-11-06 2000-05-18 Alcan Gmbh Verfahren und Zwischenprodukt zum Herstellen eines Hohlkörpers sowie ein durch ein derartiges Verfahren hergestellter Hohlkörper
US6415638B1 (en) * 1999-03-26 2002-07-09 Nissan Motor Co., Ltd. Method and device for forming tubular work into shaped hollow product by using tubular hydroforming
DE10016206C1 (de) * 2000-03-31 2001-10-04 Schuler Hydroforming Gmbh & Co Formwerkzeug für nach dem Innenhochdruck-Umformen herzustellende hohle Bauteile aus zwei Blechplatinen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE474713A (fr) *
US2503190A (en) * 1947-04-07 1950-04-04 Mcnamar Boiler & Tank Company Method of forming spherical containers
FR2228551A1 (en) * 1973-05-08 1974-12-06 Eta Sa Method of forming hollow sheet metal sphere - metal cylinder deformed by internal water pressure within spherical mould
JPS5183062A (fr) * 1975-01-17 1976-07-21 Yamaha Motor Co Ltd
JPS5396963A (en) * 1977-02-04 1978-08-24 Yamaha Motor Co Ltd Manufacturing method of fuel tank for autoobicycle
GB2334472A (en) * 1998-02-18 1999-08-25 Nippon Oxygen Co Ltd Metal vessel and fabrication method for the same

Also Published As

Publication number Publication date
DE10016025B4 (de) 2005-06-16
KR20010094972A (ko) 2001-11-03
DE10016025A1 (de) 2001-10-18
US6684475B2 (en) 2004-02-03
EP1138408A3 (fr) 2002-06-26
JP2001353546A (ja) 2001-12-25
US20020029456A1 (en) 2002-03-14

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