CA2548204A1 - Device for internal high-pressure deformation of a blank - Google Patents
Device for internal high-pressure deformation of a blank Download PDFInfo
- Publication number
- CA2548204A1 CA2548204A1 CA002548204A CA2548204A CA2548204A1 CA 2548204 A1 CA2548204 A1 CA 2548204A1 CA 002548204 A CA002548204 A CA 002548204A CA 2548204 A CA2548204 A CA 2548204A CA 2548204 A1 CA2548204 A1 CA 2548204A1
- Authority
- CA
- Canada
- Prior art keywords
- receiving space
- blank
- lubricant
- fluid
- residual fluid
- 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.)
- Abandoned
Links
- 239000012530 fluid Substances 0.000 claims abstract description 52
- 238000000034 method Methods 0.000 claims abstract description 25
- 239000000314 lubricant Substances 0.000 claims description 35
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007789 sealing Methods 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
- B21D26/033—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
- B21D37/00—Tools as parts of machines covered by this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
The invention relates to a device (2,2') for internal high-pressure deformation of a blank (12) with the aid of a high-pressure fluid, comprising a tool (4,6) which is provided with a receiving area (8) for a blank, wherein the tool consists of at least one channel (22, 24, 26, 30, 32, 34) which leads into the receiving area and through which fluid remaining in the receiving area can be removed therefrom. The invention also relates to a method for operating a device for internal high-pressure deformation of a blank.
Description
DaimlerChrysler AG
Method for operating an apparatus for hydroforming a blank The invention relates to a method for operating an apparatus for hydroforming a blank in accordance with the preamble of patent claim 1.
Hydroforming is becoming increasingly important in particular in the automotive industry in order, for example, to allow the production of body components.
First of all, undeformed blanks, for example tubes, are inserted into the receiving space of a die. The geometry of a receiving space corresponds to the desired external geometry of the finished component.
The blank is acted on by high-pressure fluid so that the walls of the blank are plastically deformed and come to bear against the walls of the receiving space.
It is in this way possible to economically produce high-strength, complex components.
To assist the deformation process and to minimize friction which occurs between the wall of the receiving space and the outer skin of the blank, it is known from EP 0 771 598 A1 to supply the receiving space with lubricant. The lubricant has the effect of allowing the outer skin of the blank to slide along the wall of the receiving space. It is in this way possible to avoid undesirable distortion.
DE 199 44 722 A1 has disclosed a method for operating a hydroforming die, in which during the deformation of a hollow body which is present in the die, lubricant is delivered into the forming zone of the die via AMENDED SHEET
Method for operating an apparatus for hydroforming a blank The invention relates to a method for operating an apparatus for hydroforming a blank in accordance with the preamble of patent claim 1.
Hydroforming is becoming increasingly important in particular in the automotive industry in order, for example, to allow the production of body components.
First of all, undeformed blanks, for example tubes, are inserted into the receiving space of a die. The geometry of a receiving space corresponds to the desired external geometry of the finished component.
The blank is acted on by high-pressure fluid so that the walls of the blank are plastically deformed and come to bear against the walls of the receiving space.
It is in this way possible to economically produce high-strength, complex components.
To assist the deformation process and to minimize friction which occurs between the wall of the receiving space and the outer skin of the blank, it is known from EP 0 771 598 A1 to supply the receiving space with lubricant. The lubricant has the effect of allowing the outer skin of the blank to slide along the wall of the receiving space. It is in this way possible to avoid undesirable distortion.
DE 199 44 722 A1 has disclosed a method for operating a hydroforming die, in which during the deformation of a hollow body which is present in the die, lubricant is delivered into the forming zone of the die via AMENDED SHEET
- 2 -feedlines running inside the forming die and is if appropriate removed again.
Furthermore DE 102 02 201 Al has disclosed a method in which, likewise during the deformation of a hollow body which is present in the forming die, lubricant is delivered into the forming zone of the die via feedlines running inside the forming die and is if appropriate removed again, but the feedlines for supplying the lubricant and those used to discharge it are different.
Furthermore, GB 21 26 510 A has disclosed a production process and an apparatus in which during the deformation of a hollow profiled section in a hydroforming die, excess pressurized fluid is removed via passages running inside the forming die. To facilitate the deformation, the hollow profiled section is lubricated with pressurized fluid on the outer side.
According to DE 102 02 201 Al, the principle which is known from EP 0 771 598 Al is further developed in such a way that a flow of lubricant is generated in the receiving space of the die, so that the deformation process can be assisted even more effectively.
One problem with the hydroforming apparatuses which are known from the prior art is that following the actual deformation operation residual fluid collects in the receiving space. This residual fluid may contain high-pressure fluid, lubricants and/or inclusions of air.
After the blank has been removed from the die, the residual fluid remains in the receiving space and may have an adverse effect on a subsequent deformation process. On the one hand, the residual fluid enclosed in the receiving space is substantially not compressible, with the ensuing risk that a blank that AMENDED SHEET
Furthermore DE 102 02 201 Al has disclosed a method in which, likewise during the deformation of a hollow body which is present in the forming die, lubricant is delivered into the forming zone of the die via feedlines running inside the forming die and is if appropriate removed again, but the feedlines for supplying the lubricant and those used to discharge it are different.
Furthermore, GB 21 26 510 A has disclosed a production process and an apparatus in which during the deformation of a hollow profiled section in a hydroforming die, excess pressurized fluid is removed via passages running inside the forming die. To facilitate the deformation, the hollow profiled section is lubricated with pressurized fluid on the outer side.
According to DE 102 02 201 Al, the principle which is known from EP 0 771 598 Al is further developed in such a way that a flow of lubricant is generated in the receiving space of the die, so that the deformation process can be assisted even more effectively.
One problem with the hydroforming apparatuses which are known from the prior art is that following the actual deformation operation residual fluid collects in the receiving space. This residual fluid may contain high-pressure fluid, lubricants and/or inclusions of air.
After the blank has been removed from the die, the residual fluid remains in the receiving space and may have an adverse effect on a subsequent deformation process. On the one hand, the residual fluid enclosed in the receiving space is substantially not compressible, with the ensuing risk that a blank that AMENDED SHEET
- 3 -is to be deformed cannot adopt the geometry predetermined by the wall of the receiving space during the deformation process and remains undeformed in a region in which residual fluid is present in the receiving space. A second problem is that a reliable supply of lubricant is not ensured in those regions of the receiving space in which the residual fluid has collected.
Working on this basis, the object of the present invention is to improve a method of the type described in the introduction in such a manner that a reproducibly good process quality is ensured.
According to the invention, this object is achieved by the features of patent claim 1 and by the features of patent claim 3.
On the one hand, according to the invention, prior to the deformation of a blank, residual fluid which is present in the receiving space of die is removed from the receiving space through a passage, then lubricant is fed to the receiving space and the interior of the blank is supplied with high-pressure fluid. This removal of residual fluid can be assisted by the application of subatmospheric pressure or superatmospheric pressure to the passage.
Alternatively, prior to the deformation of a blank, residual fluid which is present in the receiving space is removed from the receiving space through the passage by lubricant being fed to the receiving space to displace the residual fluid, thereafter high-pressure fluid being supplied to the interior of the blank.
In the abovementioned methods, it may be advantageous to use a low-viscosity lubricant, since compared to AMENDED SHEET
Working on this basis, the object of the present invention is to improve a method of the type described in the introduction in such a manner that a reproducibly good process quality is ensured.
According to the invention, this object is achieved by the features of patent claim 1 and by the features of patent claim 3.
On the one hand, according to the invention, prior to the deformation of a blank, residual fluid which is present in the receiving space of die is removed from the receiving space through a passage, then lubricant is fed to the receiving space and the interior of the blank is supplied with high-pressure fluid. This removal of residual fluid can be assisted by the application of subatmospheric pressure or superatmospheric pressure to the passage.
Alternatively, prior to the deformation of a blank, residual fluid which is present in the receiving space is removed from the receiving space through the passage by lubricant being fed to the receiving space to displace the residual fluid, thereafter high-pressure fluid being supplied to the interior of the blank.
In the abovementioned methods, it may be advantageous to use a low-viscosity lubricant, since compared to AMENDED SHEET
- 4 -high-viscosity lubricants a low-viscosity lubricant is easier to remove from the receiving space of a die.
As has already been explained above, the residual fluid substantially comprises high-pressure fluid but may also include dirt particles, lubricant residues and/or inclusions of air. The at least one passage ensures that the receiving space can be drained or vented before a deformation process begins, so that a subsequent deformation process is not affected or disrupted by the presence of residual fluid in the receiving space.
To assist with the removal of the residual fluid, it is possible for there to be suction means which can be used to apply a subatmospheric pressure to the passage.
By way of example, it is possible to provide a suction pump which is connected to the at least one passage, so that high-pressure fluid, lubricant residues and/or air can be sucked out of the receiving space.
In addition or as an option, it is also possible for there to be a pressure supply. This pressure supply can be used to apply superatmospheric pressure to the passage. Therefore, a superatmospheric pressure can be built up in the region where the passage opens out in the receiving space, with the result that residual fluid which is present in the receiving space is forced out of the receiving space through the passage.
The die may have lines which open out in the receiving space for supplying and/or removing lubricant. These lines may each be suitable for one direction of transport or may be suitable for both directions of transport, i.e. for both supplying and removing lubricant.
AMENDED SHEET
F~802645/WO/1 PCT/EP2004/012652
As has already been explained above, the residual fluid substantially comprises high-pressure fluid but may also include dirt particles, lubricant residues and/or inclusions of air. The at least one passage ensures that the receiving space can be drained or vented before a deformation process begins, so that a subsequent deformation process is not affected or disrupted by the presence of residual fluid in the receiving space.
To assist with the removal of the residual fluid, it is possible for there to be suction means which can be used to apply a subatmospheric pressure to the passage.
By way of example, it is possible to provide a suction pump which is connected to the at least one passage, so that high-pressure fluid, lubricant residues and/or air can be sucked out of the receiving space.
In addition or as an option, it is also possible for there to be a pressure supply. This pressure supply can be used to apply superatmospheric pressure to the passage. Therefore, a superatmospheric pressure can be built up in the region where the passage opens out in the receiving space, with the result that residual fluid which is present in the receiving space is forced out of the receiving space through the passage.
The die may have lines which open out in the receiving space for supplying and/or removing lubricant. These lines may each be suitable for one direction of transport or may be suitable for both directions of transport, i.e. for both supplying and removing lubricant.
AMENDED SHEET
F~802645/WO/1 PCT/EP2004/012652
- 5 -7:t is particularly advantageous if the passage through which residual fluid located in the receiving space can be removed from the receiving space is also suitable i=or supplying and/or removing lubricant. This allows t;he die to be of particularly simple configuration, ;since only at least one passage need be present compared to the use of separate passages and lines.
;This text is followed by the description of the drawings relating to the exemplary embodiments starting on page 5 of the original documents).
AMENDED SHEET
;This text is followed by the description of the drawings relating to the exemplary embodiments starting on page 5 of the original documents).
AMENDED SHEET
- 6 -The invention also relates to a method for operating an apparatus for hydroforming a blank, which is characterized in that prior to the deformation of a blank, residual fluid which is present in the receiving space of a die is removed from the receiving space through a passage, then lubricant is fed to the receiving space and the interior of the blank is supplied with high-pressure fluid. This removal of residual fluid can be assisted by the application of subatmospheric pressure or superatmospheric pressure to the passage.
The invention relates to a further method for operating an apparatus for hydroforming a blank, which is distinguished by the fact that prior to the deformation of a blank, residual fluid which is present in the receiving space is removed from the receiving space through the passage by lubricant being fed to the receiving space to displace the residual fluid, and in that thereafter high-pressure fluid is supplied to the interior of the blank.
In the abovementioned methods, it may be advantageous to use a low-viscosity lubricant, since compared to high-viscosity lubricants a low-viscosity lubricant is easier to remove from the receiving space of a die.
Further advantageous configurations and details of the invention are to be found in the following description, in which the invention is explained and described in more detail on the basis of the exemplary embodiments illustrated in the drawing, in which:
Figure 1 shows a sectional side view of a first hydroforming apparatus during the removal of residual fluid by suction;
Figure 2 shows the apparatus from Figure 1 during the supply of lubricant; and Figure 3 shows a sectional side view of a second hydroforming apparatus during the removal of residual fluid by displacement with lubricant.
The apparatus, which is denoted overall by reference numeral 2 in Figure 1, has an upper die half 4 and a lower die half 6. The die halves 4 and 6 delimit a receiving space 8 , the wall 10 of which corresponds to the external geometry of a shaped part which is to be produced.
An as yet undeformed, tubular blank 12 has been inserted into the receiving space 8, the outer skin 14 of which blank 12 comes to bear against the wall 10 of the receiving space 8 during the deformation process.
The blank 12 may be laterally sealed with the aid of axial cylinders 16 and 18, the axial cylinder 18 having a line 20 for a high-pressure fluid supply (not shown).
High-pressure fluid can be introduced into the cavity of the blank 12 through the line 20, so that the blank 12 can be deformed.
The lower die half 6 has three passages 22, 24 and 26 opening out in the receiving space 10. These passages are connected to a manifold 28. Accordingly, the upper die half 4 has passages 30, 32 and 34, which likewise open out in the receiving space 8 of the apparatus 2 and lead to a manifold 36. The manifold 36 of the upper die half 4 and the manifold 28 of the lower die half 6 lead to a common main passage 38.
The main passage 38 is connected to suction means (not shown), for example a vacuum pump. By applying a _ g _ vacuum, residual fluid 40 which is present in the receiving space 10 can be removed from the receiving space 8 in accordance with the directions of flow indicated by the arrows in the passages 22 to 38. The residual fluid 40 may comprise high-pressure fluid, residues of lubricants and/or inclusions of air. The removal of the residual fluid 40 allows the receiving space 8 to be drained and vented, so that a subsequent deformation process carried out on the blank 12 is not disrupted by the presence of residual fluid in the receiving space 8.
Figure 2 illustrates the apparatus 2 from Figure 1 in a subsequent process step. The axial cylinders 16 and 18 have been displaced in the direction of the receiving space 8 compared to the position illustrated in Figure 1, so that the axial cylinders 16 and 18 bear in a sealing manner against the blank 12. A high-pressure fluid can now be supplied through the line 20.
Simultaneously with or prior to high-pressure fluid being supplied to the line 20, the passages 22 to 38 can be used to feed a lubricant, denoted by 42, to the receiving space 8. For this purpose, the main passage 38 is coupled to a lubricant supply. The lubricant 42 passes into the receiving space 8 in the region where the passages 22 to 26 and 30 to 34 open out. As a result, during the subsequent deformation process carried out on the blank 12, it is ensured that the outer skin 14 of the blank 12 can bear against the wall 10 of the receiving space 8 without any friction losses.
Figure 3 illustrates an apparatus 2' which is similar to the apparatus 2 shown in Figures 1 and 2. The reference numerals shown in Figure 3 are identical where they denote the same components as in the apparatus 2 shown in Figures 1 and 2. The lower die half 6 of the apparatus 2' has passages 22, 24 and 26 which lead to a manifold 28'. Residual fluid 40 which is present in the receiving space 8 of the apparatus 2' can be removed through the manifold 28' . The upper die half 6 of the apparatus 2' has passages 30, 32 and 34 which lead to a manifold 36'. Lubricant 42 can be fed to the receiving space 8 of the apparatus 2' through the manifold 36'. Unlike in the apparatus 2 shown in Figures 1 and 2, the manifolds 28' and 36' of the apparatus 2' shown in Figure 3 are not in communication with one another.
With the embodiment illustrated in Figure 3, it is possible for residual fluid 40 which is present in the receiving space 8 of the apparatus 2' to be removed from the receiving space 8 by lubricant 42 being supplied through the manifold 36', which lubricant passes via the passages 30 to 34 into the receiving space 8, where it displaces residual fluid 40 which is present in the receiving space 8 and can be discharged via the passages 22 to 26 and ultimately via the manifold 28.'
The invention relates to a further method for operating an apparatus for hydroforming a blank, which is distinguished by the fact that prior to the deformation of a blank, residual fluid which is present in the receiving space is removed from the receiving space through the passage by lubricant being fed to the receiving space to displace the residual fluid, and in that thereafter high-pressure fluid is supplied to the interior of the blank.
In the abovementioned methods, it may be advantageous to use a low-viscosity lubricant, since compared to high-viscosity lubricants a low-viscosity lubricant is easier to remove from the receiving space of a die.
Further advantageous configurations and details of the invention are to be found in the following description, in which the invention is explained and described in more detail on the basis of the exemplary embodiments illustrated in the drawing, in which:
Figure 1 shows a sectional side view of a first hydroforming apparatus during the removal of residual fluid by suction;
Figure 2 shows the apparatus from Figure 1 during the supply of lubricant; and Figure 3 shows a sectional side view of a second hydroforming apparatus during the removal of residual fluid by displacement with lubricant.
The apparatus, which is denoted overall by reference numeral 2 in Figure 1, has an upper die half 4 and a lower die half 6. The die halves 4 and 6 delimit a receiving space 8 , the wall 10 of which corresponds to the external geometry of a shaped part which is to be produced.
An as yet undeformed, tubular blank 12 has been inserted into the receiving space 8, the outer skin 14 of which blank 12 comes to bear against the wall 10 of the receiving space 8 during the deformation process.
The blank 12 may be laterally sealed with the aid of axial cylinders 16 and 18, the axial cylinder 18 having a line 20 for a high-pressure fluid supply (not shown).
High-pressure fluid can be introduced into the cavity of the blank 12 through the line 20, so that the blank 12 can be deformed.
The lower die half 6 has three passages 22, 24 and 26 opening out in the receiving space 10. These passages are connected to a manifold 28. Accordingly, the upper die half 4 has passages 30, 32 and 34, which likewise open out in the receiving space 8 of the apparatus 2 and lead to a manifold 36. The manifold 36 of the upper die half 4 and the manifold 28 of the lower die half 6 lead to a common main passage 38.
The main passage 38 is connected to suction means (not shown), for example a vacuum pump. By applying a _ g _ vacuum, residual fluid 40 which is present in the receiving space 10 can be removed from the receiving space 8 in accordance with the directions of flow indicated by the arrows in the passages 22 to 38. The residual fluid 40 may comprise high-pressure fluid, residues of lubricants and/or inclusions of air. The removal of the residual fluid 40 allows the receiving space 8 to be drained and vented, so that a subsequent deformation process carried out on the blank 12 is not disrupted by the presence of residual fluid in the receiving space 8.
Figure 2 illustrates the apparatus 2 from Figure 1 in a subsequent process step. The axial cylinders 16 and 18 have been displaced in the direction of the receiving space 8 compared to the position illustrated in Figure 1, so that the axial cylinders 16 and 18 bear in a sealing manner against the blank 12. A high-pressure fluid can now be supplied through the line 20.
Simultaneously with or prior to high-pressure fluid being supplied to the line 20, the passages 22 to 38 can be used to feed a lubricant, denoted by 42, to the receiving space 8. For this purpose, the main passage 38 is coupled to a lubricant supply. The lubricant 42 passes into the receiving space 8 in the region where the passages 22 to 26 and 30 to 34 open out. As a result, during the subsequent deformation process carried out on the blank 12, it is ensured that the outer skin 14 of the blank 12 can bear against the wall 10 of the receiving space 8 without any friction losses.
Figure 3 illustrates an apparatus 2' which is similar to the apparatus 2 shown in Figures 1 and 2. The reference numerals shown in Figure 3 are identical where they denote the same components as in the apparatus 2 shown in Figures 1 and 2. The lower die half 6 of the apparatus 2' has passages 22, 24 and 26 which lead to a manifold 28'. Residual fluid 40 which is present in the receiving space 8 of the apparatus 2' can be removed through the manifold 28' . The upper die half 6 of the apparatus 2' has passages 30, 32 and 34 which lead to a manifold 36'. Lubricant 42 can be fed to the receiving space 8 of the apparatus 2' through the manifold 36'. Unlike in the apparatus 2 shown in Figures 1 and 2, the manifolds 28' and 36' of the apparatus 2' shown in Figure 3 are not in communication with one another.
With the embodiment illustrated in Figure 3, it is possible for residual fluid 40 which is present in the receiving space 8 of the apparatus 2' to be removed from the receiving space 8 by lubricant 42 being supplied through the manifold 36', which lubricant passes via the passages 30 to 34 into the receiving space 8, where it displaces residual fluid 40 which is present in the receiving space 8 and can be discharged via the passages 22 to 26 and ultimately via the manifold 28.'
Claims (4)
1. A method for operating an apparatus (2, 2') for hydroforming a blank (12) with the aid of a high-pressure fluid, which apparatus includes a die (4, 6) which has a receiving space (8) for the blank (12), characterized in that prior to the deformation of a blank (12), residual fluid which is present in the receiving space (8) is removed from the receiving space (8) through the passage (22, 24, 26, 30, 32, 34), and in that thereafter lubricant (42) is fed to the receiving space (8) and high-pressure fluid is supplied to the interior of the blank (12).
2. The method as claimed in claim 1, characterized in that the removal of residual fluid is assisted by the application of a subatmospheric pressure or a superatmospheric pressure to the passage (22, 24, 26, 30, 32, 34).
3. A method for operating an apparatus (2, 2') as described in the preamble of patent claim 1, characterized in that prior to the deformation of a blank (12) residual fluid (40) located in the receiving space (8) is removed from the receiving space (8) through the passage (22, 24, 26, 30, 32, 34) by lubricant (42) being fed to the receiving space (8) in order to displace the residual fluid (40), and in that thereafter high-pressure fluid is supplied to the interior of the blank (12).
4. The method as claimed in one of claims 1 to 3, characterized in that a low-viscosity lubricant (42) is used.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10357341.0 | 2003-12-09 | ||
| DE10357341A DE10357341B4 (en) | 2003-12-09 | 2003-12-09 | Apparatus and method for hydroforming a blank |
| PCT/EP2004/012652 WO2005061145A1 (en) | 2003-12-09 | 2004-11-09 | Device for internal high-pressure deformation of a blank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2548204A1 true CA2548204A1 (en) | 2005-07-07 |
Family
ID=34672499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002548204A Abandoned CA2548204A1 (en) | 2003-12-09 | 2004-11-09 | Device for internal high-pressure deformation of a blank |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20070209418A1 (en) |
| CA (1) | CA2548204A1 (en) |
| DE (1) | DE10357341B4 (en) |
| WO (1) | WO2005061145A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009000076A1 (en) * | 2007-06-22 | 2008-12-31 | Triumf, Operating As A Joint Venture By The Governors Of The University Of Alberta, The University Of British Columbia, Carleton | Higher pressure, modular target system for radioisotope production |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10337383B4 (en) * | 2003-08-13 | 2005-12-08 | Thyssenkrupp Drauz Gmbh | Process for hydroforming conical metal pipes |
| DE102006048290A1 (en) | 2006-10-12 | 2008-04-17 | Daimler Ag | Method and device for producing a composite component |
| DE102007019511B3 (en) * | 2007-04-25 | 2008-11-13 | Benteler Automobiltechnik Gmbh | Device for hydraulic-interior high pressure transformation of composite metal tube into bottom die and upper die, has forming tool, where medium, between individual tube wall, is escaped during interior high pressure reforming process |
| DE102007043316B4 (en) * | 2007-09-12 | 2009-08-20 | Schulze, Bernd, Dr.-Ing. | Method and device for producing a bulge-containing workpiece by means of a pressure medium |
| CN103691796A (en) * | 2013-12-31 | 2014-04-02 | 一重集团大连设计研究院有限公司 | Large internal high-pressure forming die |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2126510A (en) * | 1982-08-27 | 1984-03-28 | Vitkovice Zdarske Strojirny A | Tool for manufacture of shaped workpieces |
| EP0771598A1 (en) * | 1995-11-09 | 1997-05-07 | Benteler Ag | Process for reducing the friction by hydraulic forming with internal high pressure and device for hydraulic forming |
| DE19628688C1 (en) * | 1996-07-17 | 1997-11-20 | Siempelkamp Pressen Sys Gmbh | Press for internal high pressure forming hollow blanks |
| DE19944722A1 (en) * | 1999-09-17 | 2001-04-12 | Walter Panknin | Tool for transformation of workable metallic workpieces has at least one shape tool part with surface determining form of transformed material |
| DE10150092C1 (en) * | 2001-10-11 | 2003-04-03 | Salzgitter Antriebstechnik Gmb | Process for charging inner high pressure deforming presses with several parts comprises inserting all parts of the workpiece into the lower part of an assembly device, and controlling the position of the parts in the lower part |
| DE10202201A1 (en) * | 2002-01-22 | 2003-07-31 | Porsche Ag | Forming process esp. for metal plates, tubes, etc. with supply of fluid esp. oil to forming area to reduce friction and generate hydrostatic effect within work piece area |
-
2003
- 2003-12-09 DE DE10357341A patent/DE10357341B4/en not_active Expired - Fee Related
-
2004
- 2004-11-09 US US10/582,137 patent/US20070209418A1/en not_active Abandoned
- 2004-11-09 CA CA002548204A patent/CA2548204A1/en not_active Abandoned
- 2004-11-09 WO PCT/EP2004/012652 patent/WO2005061145A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009000076A1 (en) * | 2007-06-22 | 2008-12-31 | Triumf, Operating As A Joint Venture By The Governors Of The University Of Alberta, The University Of British Columbia, Carleton | Higher pressure, modular target system for radioisotope production |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10357341A1 (en) | 2005-07-14 |
| DE10357341B4 (en) | 2006-02-09 |
| WO2005061145A1 (en) | 2005-07-07 |
| US20070209418A1 (en) | 2007-09-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5918494A (en) | Method and apparatus for hydroforming metallic tube | |
| EP0588528B1 (en) | Apparatus and method for forming and hydropiercing a tubular frame member | |
| JP2634384B2 (en) | Method and apparatus for hydraulic forming of manifold for vehicle | |
| DE19530056B4 (en) | Method and device for producing T-shaped or at least one dome-like hollow body | |
| JP3206505B2 (en) | Hydraulic bulge processing method and hydraulic bulge processing apparatus for metal tube | |
| JP4643096B2 (en) | Method and apparatus for forming a hole opposite a sidewall of a tubular workpiece | |
| EP1161316B1 (en) | Compressive hydroforming | |
| EA001975B1 (en) | Method and apparatus for hydroforming an angled tubular part without inhibiting wrinkles formation | |
| JP5016174B2 (en) | Hydroforming flushing system | |
| US6305204B1 (en) | Bulge forming machine | |
| CA2548204A1 (en) | Device for internal high-pressure deformation of a blank | |
| US6662611B2 (en) | Hydroforming flush system | |
| JP2001517154A (en) | Method and apparatus for manufacturing a camshaft | |
| JP2002537118A (en) | Sealing method and press equipment | |
| AU1870202A (en) | Method of hydroforming a fuel rail for a vehicular fuel delivery system | |
| US6009734A (en) | Process and device for manufacturing hollow sections with end-side cross-sectional expansions | |
| US20070017267A1 (en) | Apparatus and method for performing a hydroforming process | |
| JP2003103314A (en) | Method and apparatus for manufacturing metal bent pipe having bulge | |
| MX2007016408A (en) | Apparatus and method for forming shaped parts. | |
| US6584821B1 (en) | Self-aligning non-pinching hydroforming dies | |
| DE10347601B4 (en) | Apparatus and method for hydraulic high pressure forming of a circuit board | |
| US6151937A (en) | Machine for forming T-shaped tubular components using a forming material insert | |
| US11583913B2 (en) | Tool for internal high-pressure shaping and method for shaping a workpiece by internal high-pressure shaping | |
| DE10207572B4 (en) | forming press | |
| EP2332667B1 (en) | Method for producing components by high intermal fluid pressure forming |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |