EP2101935A1 - Werkstück und verfahren für das explosionsumformen - Google Patents
Werkstück und verfahren für das explosionsumformenInfo
- Publication number
- EP2101935A1 EP2101935A1 EP07856437A EP07856437A EP2101935A1 EP 2101935 A1 EP2101935 A1 EP 2101935A1 EP 07856437 A EP07856437 A EP 07856437A EP 07856437 A EP07856437 A EP 07856437A EP 2101935 A1 EP2101935 A1 EP 2101935A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- workpiece
- material supply
- preformed material
- preformed
- forming
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004880 explosion Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 94
- 230000008569 process Effects 0.000 claims abstract description 9
- 239000002360 explosive Substances 0.000 claims description 4
- 238000005474 detonation Methods 0.000 description 11
- 238000004200 deflagration Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 3
- 238000007373 indentation Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005552 hardfacing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- B21D26/06—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 by shock waves
- B21D26/08—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 by shock waves generated by explosives, e.g. chemical explosives
-
- 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
- Y10T29/49806—Explosively shaping
Definitions
- the invention relates to a workpiece and a method having the features of the preamble of claim 1 or 15.
- a tube-like workpiece is filled and sealed with a liquid, mostly water. Increasing the fluid pressure expands the workpiece and gradually conforms to the contours of the mold surrounding the workpiece.
- the problem underlying the invention is to improve a Explosionsumformmaschine the aforementioned type to the effect that in a simple manner a good quality of the workpiece can be achieved with the desired wall thickness.
- This material supply is formed by the detonation with and can be used to achieve desired wall thicknesses in desired areas of the workpiece.
- the material flow can be improved over the available material quantities during the forming process.
- the preformed material supply can therefore also serve to produce a good wall quality of the workpiece.
- the shape, size and position of the preformed material supply can therefore be based on the final shape of the workpiece and / or the course of the detonation front.
- the preformed material supply has a deformed region of the workpiece.
- a preformed material supply can be easily achieved by reshaping shaping of the workpiece itself and particularly well oriented to the workpiece end shape.
- the preformed material supply has an additionally applied to the workpiece material area. This additionally applied foreign material is well suited for a clearly defined preformed material supply and can be positioned very precisely on the workpiece.
- the preformed material supply consists of a region of thicker wall thickness.
- the material thus stored can be well detected by the detonation front and z. B. serve the shaping of cavities.
- the preformed material supply is arranged on the outside with respect to the forming direction.
- On the outside can be understood in this sense as on the side facing away from the explosion space of the workpiece.
- a preformed material supply on the outside is particularly suitable for reshaping bulges of the workpiece and is usually easily accessible.
- the preformed material supply is located on the inside with respect to the forming direction. This may be recommended if tighter tolerances and better surface quality are required on the outside than on the inside.
- preformed material supply may be formed approximately punctiform. Such a preformed material supply may be advisable at this point especially for small indentations or bulges of the mold.
- the preformed material supply extends approximately linearly.
- Such preformed material supply may support uniaxially extending shapes, e.g. B. paragraphs in the mold.
- the preformed material supply may be formed approximately flat.
- a planar training can z. B. be advantageous to form an extended range of greater wall thickness. It can also be composed of punctual and / or linear training, with its stated advantages.
- the preformed material supply consists of at least one indentation and / or bulge and / or depression and / or elevation in the workpiece wall.
- the preformed material supply consists of at least one groove and / or rib and / or fold and / or shaft and / or a shoulder and / or a groove.
- the preformed material supply can be designed running transversely to the longitudinal extension of the workpiece. This embodiment is particularly recommended when the forming work is transverse to the longitudinal extent of the workpiece.
- the preformed material supply is formed longitudinally with respect to the longitudinal extension of the workpiece. This modification is recommended if the forming work in this direction is large.
- the preformed material supply extends over the circumference of the workpiece.
- Such a preformed supply of material can serve for the transformation of workpieces with tubular sections.
- This preformed material supply is used in explosion forming and increases the amount of material available for forming locally, which can be used to improve the material flow.
- the material stored in this way can be deposited again at relevant areas in order to achieve the desired shape or wall thickness there.
- the preformed material supply can be formed on the workpiece as simply as inexpensively by known methods, for example by forming and thermal joining.
- the preformed material supply can be made by deforming a portion of the workpiece. This deformation can be easily achieved by reshaping shaping, z. B. by squeezing, bending or rolling, and can be integrated into the process chain without great effort and at no great cost.
- the preformed material supply is produced by applying additional material to the workpiece.
- This applied material area can quickly, z.
- Example be created by build-up welding or welding additional material, and the process step can also be easily and inexpensively integrated into the manufacturing process of the workpiece.
- the preformed material supply can be formed before the introduction of the workpiece into the mold.
- the material supply can be formed separately and the mold to be optimized for the Explosionsumformvorgang out.
- FIG. 1 shows schematically the principle of the invention with reference to a section through the
- FIG. 2 shows variants of the material supply preformed according to the invention on the basis of workpiece cuts, wherein
- FIG. 2a shows a recess or a bulge
- FIG. 2b shows a groove or rib
- FIG. 2d a shaft, Figure 2e an additionally applied material area
- Figure 3 variants of inventively preformed material inventories, especially punctual, linear and planar manifestations.
- FIG. 1 shows schematically a section through a closed mold 1.
- this work piece 2 is shown in its initial shape 3 and with a vorgefo ⁇ mten material supply 4.
- the dot-dash line 5 indicates an axis of symmetry of the workpiece 2 and / or a possible parting plane of the molding tool.
- a gas mixture in the interior of the workpiece 2 is ignited by an ignition device 6.
- a detonation front 7 extends from the ignition device 6 to the opposite end of the molding tool 1 in a propagation direction 11 and impresses the workpiece 2 on a pressure curve 8, which is shown by dashed lines.
- This material deformation zone 9 carries representation technology of the inertia of the material and the time-delayed deformation taking into account.
- the preformed material supply 4 serves to control the flow of material in the material conversion zone 9.
- the wall thickness and quality of the final shape 10 can be influenced for relevant regions of the workpiece 2.
- the preformed Materialvonrat 4 thus oriented favorably in its shape, position and shape on the course of the detonation front 7 and the desired final shape 10.
- the preformed material supply 4 is particularly suitable to the To supply workpiece 2 für spasmanosus, especially areas of large forming work.
- the mold 1 Shown is the mold 1 with constant to the line 5 spaced outer walls and the workpiece 2 with a circumferential riefenartig formed preformed ma- terialvorrat 4.
- This material supply 4 as well as the initial shape 3, still spaced from the mold 1.
- the subsequent material-forming zone 9 pushes the material supply 4 in front of it and stores it in the area of the desired greater wall thickness, so that it rests with the initial shape 3 on the outer walls up to the final shape 10.
- the stock of material 4 can serve to form indentations or bulges of the mold 1 in this area.
- FIG. 2 shows various embodiments of the preformed material supply 4 on the workpiece 2.
- deformed regions of the material supply 4 can be seen and, in contrast thereto, an additionally applied region in FIG. 2d.
- Figure 2a shows a bulge 12 and thus an approximately punctual expression of the preformed material supply 4.
- Das kann z. B. may be a bump, which is about to be formed simply by a hammer blow from the opposite side.
- Figure 2b shows a recess 13 of the preformed material supply 4 with respect to the workpiece 2, and thus an approximately linear extension, namely a groove, the z. B. can be folded.
- FIG. 2c shows two examples of a fold 14, and thus also a linear extension of the preformed material supply 4. Such folds 14 can be achieved by targeted upsetting or Mehrfachfalzen the workpiece 2 quickly.
- FIG. 2 d shows an exemplary embodiment of a shaft in the workpiece 2, and thus likewise an approximately linear extension of the preformed material supply 4, for B. by rolling, pressing or rolling.
- FIG. 2 e shows an exemplary embodiment of a material region 16 additionally applied to the workpiece 2, which as welded-on metal sheet forms the preformed material supply 4 with thicker wall thickness and, depending on the dimensions, can be designed as punctiform, linear or planar.
- FIG. 2f shows a material supply 4 of the workpiece 2, which extends over the circumference of the workpiece 2 which is rotationally symmetrical here.
- the preformed material supply 4 is formed in this embodiment as two paragraphs 17 and a groove 18.
- a tubular workpiece is shown, but the invention does not limit itself to this basic workpiece shape.
- the material supplies shown in Figure 2 may also be pronounced in the opposite direction; z. B. then from the bulge or bulge 12 to the outside in Figure 2a, a recess or dent to the inside and from the recess or groove 13 to the inside in Figure 2b an increase or rib to the outside.
- FIG. 3 shows further exemplary embodiments for the expression of the preformed material supply 4 on the workpiece 2. It shows a corrugated region 19 composed of corrugations 15, a hardfacing seam 20, a welded-on metal sheet 16 and a respective bulge 12 and dimple 21.
- these are punctual (FIG. uniaxial), linear (biaxial) and planar (triaxial) extents of the preformed material supply 4.
- a linear expression of several punctual exist and a two-dimensional expression in turn consist of several linear and / or biaxial arranged punctual.
- the preformed material supply 4 may extend longitudinally and transversely to the longitudinal extent of the workpiece. So is the corrugated area 19 z. B. shown along a first possible longitudinal extent 22 and transversely to a second possible longitudinal extension 23 is shown here by way of example a sheet-metal workpiece 2, wherein the shape is also not limited to this basic shape.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006060372A DE102006060372A1 (de) | 2006-12-20 | 2006-12-20 | Werkstück und Verfahren für das Explosionsumformen |
| PCT/EP2007/010632 WO2008080502A1 (de) | 2006-12-20 | 2007-12-06 | Werkstück und verfahren für das explosionsumformen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2101935A1 true EP2101935A1 (de) | 2009-09-23 |
| EP2101935B1 EP2101935B1 (de) | 2019-02-27 |
Family
ID=39032318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07856437.4A Not-in-force EP2101935B1 (de) | 2006-12-20 | 2007-12-06 | Werkstück und verfahren für das explosionsumformen |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US8322175B2 (de) |
| EP (1) | EP2101935B1 (de) |
| DE (1) | DE102006060372A1 (de) |
| WO (1) | WO2008080502A1 (de) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005025660B4 (de) | 2005-06-03 | 2015-10-15 | Cosma Engineering Europe Ag | Vorrichtung und Verfahren zum Explosionsumformen |
| DE102006037754B3 (de) | 2006-08-11 | 2008-01-24 | Cosma Engineering Europe Ag | Verfahren und Vorrichtung zum Explosionsumformen |
| DE102006037742B4 (de) | 2006-08-11 | 2010-12-09 | Cosma Engineering Europe Ag | Verfahren und Vorrichtung zum Explosionsumformen |
| DE102006056788B4 (de) | 2006-12-01 | 2013-10-10 | Cosma Engineering Europe Ag | Verschlusseinrichtung für das Explosionsumformen |
| DE102006060372A1 (de) | 2006-12-20 | 2008-06-26 | Cosma Engineering Europe Ag | Werkstück und Verfahren für das Explosionsumformen |
| DE102007007330A1 (de) | 2007-02-14 | 2008-08-21 | Cosma Engineering Europe Ag | Verfahren und Werkzeuganordnung zum Explosionsumformen |
| DE102007023669B4 (de) | 2007-05-22 | 2010-12-02 | Cosma Engineering Europe Ag | Zündeinrichtung für das Explosionsumformen |
| DE102007036196A1 (de) | 2007-08-02 | 2009-02-05 | Cosma Engineering Europe Ag | Vorrichtung für die Zufuhr eines Fluids für Explosionsumformen |
| DE102008006979A1 (de) | 2008-01-31 | 2009-08-06 | Cosma Engineering Europe Ag | Vorrichtung für das Explosionsumformen |
| US9587871B2 (en) | 2012-05-03 | 2017-03-07 | Whirlpool Corporation | Heater-less ice maker assembly with a twistable tray |
| US9513045B2 (en) | 2012-05-03 | 2016-12-06 | Whirlpool Corporation | Heater-less ice maker assembly with a twistable tray |
| US8925335B2 (en) | 2012-11-16 | 2015-01-06 | Whirlpool Corporation | Ice cube release and rapid freeze using fluid exchange apparatus and methods |
| US9273891B2 (en) | 2012-12-13 | 2016-03-01 | Whirlpool Corporation | Rotational ice maker |
| US9518770B2 (en) | 2012-12-13 | 2016-12-13 | Whirlpool Corporation | Multi-sheet spherical ice making |
| US9476629B2 (en) | 2012-12-13 | 2016-10-25 | Whirlpool Corporation | Clear ice maker and method for forming clear ice |
| US9557087B2 (en) | 2012-12-13 | 2017-01-31 | Whirlpool Corporation | Clear ice making apparatus having an oscillation frequency and angle |
| US9500398B2 (en) | 2012-12-13 | 2016-11-22 | Whirlpool Corporation | Twist harvest ice geometry |
| US9310115B2 (en) | 2012-12-13 | 2016-04-12 | Whirlpool Corporation | Layering of low thermal conductive material on metal tray |
| US9410723B2 (en) | 2012-12-13 | 2016-08-09 | Whirlpool Corporation | Ice maker with rocking cold plate |
| US9518773B2 (en) | 2012-12-13 | 2016-12-13 | Whirlpool Corporation | Clear ice maker |
| US9470448B2 (en) | 2012-12-13 | 2016-10-18 | Whirlpool Corporation | Apparatus to warm plastic side of mold |
| WO2016065269A2 (en) | 2014-10-23 | 2016-04-28 | Whirlpool Corporation | Method and apparatus for increasing rate of ice production in an automatic ice maker |
| US10739053B2 (en) | 2017-11-13 | 2020-08-11 | Whirlpool Corporation | Ice-making appliance |
| US10907874B2 (en) | 2018-10-22 | 2021-02-02 | Whirlpool Corporation | Ice maker downspout |
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| US7093470B2 (en) | 2002-09-24 | 2006-08-22 | The Boeing Company | Methods of making integrally stiffened axial load carrying skin panels for primary aircraft structure and fuel tank structures |
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| DE102006037754B3 (de) | 2006-08-11 | 2008-01-24 | Cosma Engineering Europe Ag | Verfahren und Vorrichtung zum Explosionsumformen |
| DE102006037742B4 (de) | 2006-08-11 | 2010-12-09 | Cosma Engineering Europe Ag | Verfahren und Vorrichtung zum Explosionsumformen |
| DE102006056788B4 (de) | 2006-12-01 | 2013-10-10 | Cosma Engineering Europe Ag | Verschlusseinrichtung für das Explosionsumformen |
| DE102006060372A1 (de) | 2006-12-20 | 2008-06-26 | Cosma Engineering Europe Ag | Werkstück und Verfahren für das Explosionsumformen |
| DE102007007330A1 (de) | 2007-02-14 | 2008-08-21 | Cosma Engineering Europe Ag | Verfahren und Werkzeuganordnung zum Explosionsumformen |
| DE102007023669B4 (de) | 2007-05-22 | 2010-12-02 | Cosma Engineering Europe Ag | Zündeinrichtung für das Explosionsumformen |
| DE102007036196A1 (de) | 2007-08-02 | 2009-02-05 | Cosma Engineering Europe Ag | Vorrichtung für die Zufuhr eines Fluids für Explosionsumformen |
| DE102008006979A1 (de) | 2008-01-31 | 2009-08-06 | Cosma Engineering Europe Ag | Vorrichtung für das Explosionsumformen |
-
2006
- 2006-12-20 DE DE102006060372A patent/DE102006060372A1/de not_active Ceased
-
2007
- 2007-12-06 US US12/520,192 patent/US8322175B2/en active Active
- 2007-12-06 WO PCT/EP2007/010632 patent/WO2008080502A1/de not_active Ceased
- 2007-12-06 EP EP07856437.4A patent/EP2101935B1/de not_active Not-in-force
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2008080502A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20100011827A1 (en) | 2010-01-21 |
| US8322175B2 (en) | 2012-12-04 |
| EP2101935B1 (de) | 2019-02-27 |
| DE102006060372A1 (de) | 2008-06-26 |
| WO2008080502A1 (de) | 2008-07-10 |
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