CN101987337A - Hot bulge forming apparatus, a hot bulge forming method and a product formed through hot bulge forming - Google Patents
Hot bulge forming apparatus, a hot bulge forming method and a product formed through hot bulge forming Download PDFInfo
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- CN101987337A CN101987337A CN2010102429511A CN201010242951A CN101987337A CN 101987337 A CN101987337 A CN 101987337A CN 2010102429511 A CN2010102429511 A CN 2010102429511A CN 201010242951 A CN201010242951 A CN 201010242951A CN 101987337 A CN101987337 A CN 101987337A
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- 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
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- 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
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- 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
- B21D37/16—Heating or cooling
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- Fluid Mechanics (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The present invention relates to a hot bulge forming apparatus, a hot bulge forming method and a product formed through hot bulge forming, which can suppress a generation of a dent at a lengthwise central side of a workpiece. In the hot bulge forming apparatus 1, a preheated tubular material 10b is disposed in a cavity 33A defined by dies 21A, 31A, air is supplied into an interior of the tubular material 10b so that the tubular material 10b is pressed against cavity surfaces 211A, 311A by the pressure of the air to thereby form the tubular material 10b into a shape defined by the cavity 33A. Thereafter, the resulting tubular material 10c is disposed in a cavity 33B defined by dies 21B, 31B, and air is supplied into an interior of the tubular material 10c so that the tubular material 10c is pressed against cavity surfaces 211B, 311B by the pressure of the air to thereby form the tubular material 10c into a shape defined by the cavity 33B while the tubular material 10c is cooled by the cavity surfaces 211B, 311B. Projecting portions 331 each having an arc-shaped section are formed at portions of the cavity surfaces 211A, 311A against which lengthwise end sides of the tubular material 10b are pressed.
Description
Technical field
The present invention relates to heat expansion building mortion, heat expansion manufacturing process and heat expansion formed products.In detail, relate to heat expansion building mortion as described below, heat expansion manufacturing process and heat expansion formed products: with the work piece configuration of pre-heated tubulose in the die cavity of metal film, to this die cavity supply with fluid and with the pressure of fluid with the cavity surface of workpiece pushing and pressing at metal film on and form, then, the work-piece cools after will being shaped with metal film.
Background technology
All the time, known die cavity to metal film is supplied with the air of high pressure and the heat expansion that the workpiece of tubulose forms is shaped.
Particularly, during this heat expansion is shaped, for example, the workpiece of tubulose is heated in advance, and with the work piece configuration of this tubulose between the pair of metal film.Then, on one side the length direction both end sides of workpiece retrained on one side this metal film closed film and supplies with the air of high pressure to die cavity, the pressure by this air with the workpiece pushing and pressing on the cavity surface of metal film.Afterwards, this state is kept certain hour and with metal film with work-piece cools.Then, press and open metal film in discharging, the workpiece after being shaped is taken out (for example, with reference to patent documentation 1) from metal film.
Patent documentation 1: TOHKEMY 2003-126923 communique
But, in case owing to press in discharging then power reduction that the inboard of workpiece is pushed, so workpiece can shrink largely.At this moment, the amount of contraction of the length direction both end sides of workpiece is bigger than the amount of contraction of the length direction center side of workpiece, is subjected to the pulling of contraction of the length direction both end sides of this workpiece, and the part depression of the length direction center side of workpiece can be sunk.Especially, as shown in figure 10, be under the rectangular situation at the cross sectional shape of the length direction center side of workpiece 110, because long leg divides 111 rigidity lower than the rigidity of short side part 112, so long leg divides 111 recessed largely.
It is described that the reasons are as follows of this phenomenon taken place.
When expansion-molded, owing to supply with pressure-air under the bound state of length direction both end sides of workpiece, therefore, compare with the length direction both end sides of workpiece, the length direction center side of workpiece is pushed against on die cavity by the pressure of air more powerfully.Therefore, compare with the length direction both end sides of workpiece, the length direction center side of workpiece is cooling early, is all cooling off till pressing in discharging.Therefore, in case press in discharging, then compare with the length direction both end sides of workpiece, the length direction both end sides of workpiece is shunk to a greater degree, and the length direction center side of workpiece is pulled by the contraction of the length direction both end sides of this workpiece, cave in concurrent give birth to heavy.
Summary of the invention
The object of the present invention is to provide a kind of heat expansion building mortion, the length direction center side that can be suppressed at workpiece is sunk.
Heat expansion building mortion of the present invention (for example, heat expansion building mortion 1 described later), with the workpiece of warmed-up tubulose in advance (for example, tubular blank 10b described later) (for example is configured in first metal film, counterdie 21A described later, patrix 31A) die cavity (for example, die cavity 33A described later) in, in described workpiece, (for example supply with fluid, air described later) and with described workpiece pushing and pressing (for example in the cavity surface of described first metal film with the pressure of this fluid, cavity surface 211A described later, form 311A), then, with described work piece configuration (for example at second metal film, film 21B down described later, last film 31B) die cavity (for example, die cavity 33B described later) in, in described workpiece, supply with fluid and with described workpiece pushing and pressing (for example in the cavity surface of described second metal film with the pressure of this fluid, cavity surface 211B described later, 311B), described workpiece being cooled off one side on one side by this cavity surface forms, it is characterized in that, on the distolateral part that pushes against of length direction in the cavity surface of described first metal film to workpiece, be formed with the protuberance (for example, protuberance 331 described later) of cross section circular shape.
According to the present invention, on the distolateral part that pushes against of the length direction in the cavity surface of first metal film, be formed with the protuberance of cross section circular shape to workpiece.
Therefore, when by first metal film workpiece being formed, the protuberance that is formed on the cavity surface is transferred on the workpiece, at the recess of the distolateral formation of the length direction of workpiece cross section circular shape.Then, in case by second metal film workpiece is formed, and then press in cooling off and discharging, then compare the length direction one distolateral contraction largely of workpiece with the length direction center side of workpiece.That is to say that the length direction one distolateral girth of workpiece reduces largely.
But because the length direction of workpiece is distolateral and length direction center side workpiece is continuous, therefore, the distolateral contraction distortion of the length direction of this workpiece is subjected to the constraint of the length direction center side of workpiece.Therefore, recess is stretched, because this tensile force, recess deforms, and the curvature of the circular shape of this recess reduces, and therefore, is suppressed though the distolateral girth desire of the length direction of workpiece reduces this minimizing.
Consequently, the length direction one distolateral contraction that can suppress to be subjected to this workpiece pulls and sinks in the length direction center side of workpiece.
Heat expansion manufacturing process of the present invention, with the work piece configuration of pre-heated tubulose in the die cavity of metal film, in described workpiece, supply with fluid and with the pressure of this fluid described workpiece is pushed against on the cavity surface of described metal film and form, it is characterized in that, before described shaping, at the recess of the distolateral formation of the length direction of described workpiece cross section circular shape.
Heat expansion formed products of the present invention is the heat expansion formed products of the tubulose that is shaped by heat expansion, it is characterized in that, at the distolateral recess (for example, recess 11 described later) that is formed with the cross section circular shape of length direction.
The effect of invention
According to the present invention, when by first metal film workpiece being formed, the protuberance that is formed on the cavity surface is transferred on the workpiece, at the recess of the length direction one distolateral formation cross section circular shape of workpiece.Then, when in by second metal film workpiece being formed and then cooling off and discharge, pressing, compare the length direction one distolateral contraction largely of workpiece with the length direction center side of workpiece.That is to say that the length direction one distolateral girth of workpiece reduces largely.But because the length direction of workpiece is distolateral and length direction center side workpiece is continuous, therefore, the distolateral contraction distortion of the length direction of this workpiece is subjected to the constraint of the length direction center side of workpiece.Therefore, recess is stretched, because this tensile force, recess deforms, and the curvature of the circular shape of this recess reduces, and therefore, is suppressed though the distolateral girth desire of the length direction of workpiece reduces this minimizing.Consequently, the length direction one distolateral contraction that can suppress to be subjected to this workpiece pulls and sinks in the length direction center side of workpiece.
Description of drawings
Fig. 1 is the flow chart of action of the heat expansion building mortion of expression an embodiment of the invention.
Fig. 2 is the stereogram of the workpiece that forms of the heat expansion building mortion by described embodiment.
Fig. 3 is the cutaway view of the first expansion-molded device that constitutes the heat expansion building mortion of described embodiment.
Fig. 4 is the cutaway view of metal film of the first expansion-molded device of described embodiment.
Fig. 5 is the cutaway view of the second expansion-molded device that constitutes the heat expansion building mortion of described embodiment.
Fig. 6 is the cutaway view of metal film of the second expansion-molded device of described embodiment.
Fig. 7 is the cutaway view of the 3rd expansion-molded device that constitutes the heat expansion building mortion of described embodiment.
Fig. 8 is the cutaway view of metal film of the 3rd expansion-molded device of described embodiment.
Fig. 9 is the figure that the distortion to the workpiece in the 3rd expansion-molded device of described embodiment describes.
Figure 10 is used for the figure that the distortion to the workpiece of conventional example describes.
The explanation of Reference numeral
1 heat expansion building mortion
10a～10d tubular blank
11 recesses
21A counterdie (first metal film)
31A patrix (first metal film)
21B counterdie (second metal film)
31B patrix (second metal film)
33A, 33B die cavity
211A, 211B, 311A, 311B cavity surface
331 protuberances
The specific embodiment
Below, with reference to the accompanying drawings an embodiment of the invention are described.
Fig. 1 is the flow chart of action of the heat expansion building mortion 1 of expression an embodiment of the invention.
Fig. 2 is the stereogram of expression tubular blank 10a～10d, and this tubular blank 10a～10d is the workpiece that is shaped by heat expansion building mortion 1.
Heat expansion building mortion 1 is carried out following operation according to following order: energising heating process 2, as the expander forming process 3 of preliminary forming operation and conquassation forming process 4, as the cross section forming process 5 of final forming process.
Particularly, in energising heating process 2, the tubular blank 10a that the aluminium alloy of roughly linearity extension is made heats.
In expander forming process 3,,, make it become tubular blank 10b with near the expansion of the position the two ends of tubular blank 10a by the first expansion-molded device 6 (with reference to Fig. 3).
In conquassation forming process 4, by the second expansion-molded device 7 (with reference to Fig. 5), the cross sectional shape of tubular blank 10b is formed the substantially elliptical shape, and make the pars intermedia bending of tubular blank 10b, make it become tubular blank 10c.
In cross section forming process 5, by the 3rd expansion-molded device 8 (with reference to Fig. 7), the cross sectional shape of tubular blank 10c is formed the essentially rectangular shape, make it become tubular blank 10d.
Fig. 3 is the cutaway view that the summary of the expression first expansion-molded device 6 constitutes.Fig. 4 is the cutaway view of the metal film of the first expansion-molded device 6.
The first expansion-molded device 6 comprises: following mold mechanism 20, and it has the counterdie 21 that tubular blank 10a, 10b are supported; Last mold mechanism 30, its have with counterdie 21 together with tubular blank 10a, 10b patrix 31 from clamping up and down; Maintaining body 40, it keeps the both end sides of tubular blank 10a, 10b; Dipper crowding gear 50, it pushes the both end sides of tubular blank 10a, 10b on direction of principal axis; Air feeder 60, it is to the internal feed air of tubular blank 10a, 10b; Heater 70, it heats counterdie 21 and patrix 31.
Following mold mechanism 20 has: as the above-mentioned following film 21 of fixing metal film; The base station 22 that this time film 21 is supported.Be formed with cavity surface 211 on the film 21 down.
Film laminating apparatus structure 30 has: the above-mentioned last film 31 of the movable metal film of conduct of relative configuration with the top of following film 21; Make the lowering or hoisting gear 32 of film 31 liftings.On last film 31, be formed with cavity surface 311.
When driving lowering or hoisting gear 32, make film 31 approaching films 21 down and close film, then form die cavity 33 by the cavity surface 311 of film 31 on these and the cavity surface 211 of following film 21.
Maintaining body 40 has: will descend tubular blank 10a, 10b on the film 21 to be located at a pair of holding member 41 of direction of principal axis both sides; Make the driving and reversing mechanism 42 of these a pair of holding members 41 along the direction of principal axis advance and retreat of tubular blank 10a, 10b.
Holding member 41 is the general cylindrical shape shape.
Driving and reversing mechanism 42 makes holding member 41 near tubular blank 10a, 10b, and makes its both end sides that is entrenched in tubular blank 10a, thus this tubular blank 10a, 10b is kept.
Fig. 5 is the cutaway view that the summary of the expression second expansion-molded device 7 constitutes.Fig. 6 is the cutaway view of the metal film of the second expansion-molded device 7.
The difference of the second expansion-molded device 7 and the first expansion-molded device 6 is: by the cavity surface 311A of last film 31A and down shape, the air feeder 60 of the die cavity 33A that constitutes of the cavity surface 211A of film 21A structure and maintaining body 40 is not set and dipper crowding gear 50 and constraint mechanism 80 is set, identical as for other formation with the first expansion-molded device 6.
That is,, that is to say, on the part that the length direction both end sides to tubular blank 10b, 10c pushes against, be formed with the protuberance 331 of cross section circular shape in the cavity surface 311A of last film 31A and the length direction both end sides of descending the cavity surface 211A of film 21A.
In addition, constraint mechanism 80 has: a pair of confining part 81, and it is set to clamp down tubular blank 10b, 10c on the film 21A from direction of principal axis; Driving and reversing mechanism 82, it makes the direction of principal axis advance and retreat of this a pair of confining part 81 along tubular blank 10b, 10c.
On confining part 81, be formed with recess 811.
Driving and reversing mechanism 82 makes confining part 81 near tubular blank 10b, 10c, and the both end sides of tubular blank 10b, 10c is entrenched in the recess 811, thereby the both end sides of this tubular blank 10b, 10c is retrained.
In addition, the air of air feeder 60 is supplied with the both end sides that road 61A connects a pair of confining part 81 and extends to tubular blank 10b, 10c.
Fig. 7 is the cutaway view that the summary of expression the 3rd expansion-molded device 8 constitutes.Fig. 8 is the cutaway view of the metal film of the 3rd expansion-molded device 8.
The difference of the 3rd expansion-molded device 8 and the second expansion-molded device 7 is: by the cavity surface 311B of last film 31B and the shape of die cavity 33B and the constituting of heater 70B that constitute of the cavity surface 211B of film 21B down, identical with the second expansion-molded device 7 as for other formation.
That is,, do not form protuberance 331 at the cavity surface 311B of last film 31B and down on the cavity surface 211B of film 21B.
In addition, as heater 70B, for example, can use fluid heater.
Below, the expansion-molded order of being undertaken by above-mentioned heat expansion building mortion 1 is described.
Expansion-molded energising heating process, expander forming process, conquassation forming process and the cross section forming process of comprising.
At first, in the energising heating process, the tubular blank 10a that aluminium alloy is made is heated to about 500 ℃.
Then, carry out the expander forming process.Particularly, at first, metal film 21,31 is heated to about 500 ℃, that is to say, be heated to more than the recrystallization temperature of tubular blank 10a by heater 70.
Then, the tubular blank 10a after the heating is configured in down on the film 21.
Then, drive the lowering or hoisting gear 32 of Film laminating apparatus structure 30, film 31 is descended, carry out the film that closes of metal film 21,31.
Then, drive the driving and reversing mechanism 42 of maintaining body 40, holding member 41 is entrenched in the both end sides of tubular blank 10a, 10a keeps to this tubular blank.
Then, drive the push part 51 of dipper crowding gear 50, the two ends that will remain on the tubular blank 10a on the holding member 41 with push part 51 push to compression direction.Simultaneously, drive the air pump of air feeder 60, in die cavity 33, supply with the air of high pressure.
Like this, tubular blank 10a is shaped by hot-expanding pipe in the mode that the shape with die cavity 33 adapts, and becomes tubular blank 10b.
Then, carry out the conquassation forming process.Particularly, at first, metal film 21A, 31A are heated to about 500 ℃, that is to say, be heated to more than the recrystallization temperature of tubular blank 10b by heater 70.
Then, keep heated condition to carry by not shown known carrying mechanism unchangeably to the tubular blank 10b after the expander shaping, 10b is configured in down on the film 21A with this tubular blank.
Then, drive the driving and reversing mechanism 82 of constraint mechanism 80, confining part 81 is entrenched in the both end sides of tubular blank 10b.
In addition, drive the lowering or hoisting gear 32 of Film laminating apparatus structure 30, film 31A is descended, carry out the film that closes of metal film 21A, 31A.Simultaneously, drive the air pump of air feeder 60, supply with the air of high pressure to die cavity 33A.
Like this, the tubular blank 10b after expander is shaped is shaped by heat (about 500 ℃) conquassation in the mode that the shape with die cavity 33A adapts, and becomes tubular blank 10c.At this moment, the protuberance 331 that is formed on cavity surface 211A, the 311A is transferred on the tubular blank 10c, is formed with the recess 11 (with reference to Fig. 9 (a) and (b)) of cross section circular shape in the length direction both end sides of tubular blank 10c.
Then, carry out the cross section forming process.Particularly, at first, metal film 21B, 31B are heated to about 200 ℃, that is to say, be heated to below the recrystallization temperature of tubular blank 10c by heater 70B.
Then, by not shown rotating mechanism, the tubular blank 10c after the conquassation shaping is rotated roughly 90 ° around central shaft, then, carry by not shown known carrying mechanism, 10c is configured in down on the film 21B with this tubular blank.
Then, drive the driving and reversing mechanism 82 of constraint mechanism 80, confining part 81 is entrenched in the both end sides of tubular blank 10c, the both end sides of tubular blank 10e is retrained.In addition, drive the lowering or hoisting gear 32 of Film laminating apparatus structure 30, film 31B is descended, carry out the film that closes of metal film 21B, 31B.Simultaneously, drive the air pump of air feeder 60, in die cavity 33B, supply with the air of high pressure.
Like this, the tubular blank 10c after being shaped by conquassation is shaped by the cross section in the mode of the shape that adapts to die cavity 33B, becomes tubular blank 10d.
In this cross section forming process,, therefore,, can carry out hot forming to a certain degree though the heat of tubular blank 10c reduces to the temperature of metal film 21B, 31B transmission, tubular blank 10c because the temperature of metal film 21B, 31B is about 200 ℃.
Then, the temperature of metal film 21B, 31B is remained on below the recrystallization temperature of tubular blank 10d, and the membrane stage that closes of metal film 21B, 31B is kept the regular hour.Thus, tubular blank 10d cooled off make its thermal contraction, then, press in discharging.
At this moment, because therefore restrained member 81 constraints in the both ends of tubular blank 10d, can suppress the axial thermal contraction of tubular blank 10d.
At this, shown in Fig. 9 (a), the length direction one of tubular blank 10c of recess 11 that will be formed with the cross section circular shape is distolateral as end 12, with the length direction center side of tubular blank 10c as central portion 13.
In case tubular blank 10c is cooled off and discharges interior the pressure by metal film 21B, 31B, then to compare with the central portion 13 of tubular blank 10c, shrink largely the end 12 of tubular blank 10c.That is to say that shown in Fig. 9 (b), the girth of the end 12 of tubular blank 10c reduces largely.
But because end 12 and the central portion 13 of tubular blank 10c are continuous, therefore, the contraction distortion of the end 12 of this tubular blank 10c is subjected to the constraint of the central portion 13 of tubular blank 10c.Therefore, recess 11 is stretched on Fig. 9 (b) hollow core direction of arrow, because this tensile force, recess 11 deforms, and the curvature of the circular shape of this recess 11 reduces.Thus, though the girth desire of the end 12 of tubular blank 10c reduces this minimizing is suppressed.
According to present embodiment, has following effect.
(1) on the part that is pushed against by the length direction both end sides of tubular blank 10c in last film 31A and following film 21A, forms the protuberance 331 of cross section circular shape.
Therefore, when by metal film 21A, 31A tubular blank 10c being formed, the protuberance 331 that is formed on cavity surface 211A, the 311A is transferred on the tubular blank 10b, forms the recess 11 of cross section circular shape in the length direction both end sides of tubular blank 10c.Then, by metal film 21B, 31B tubular blank 10c is formed, and then press in cooling off and discharging, at this moment, recess 11 is stretched, and recess 11 is out of shape because of this tensile force, and the curvature of the circular shape of recess 11 reduces, therefore, the girth that can suppress the length direction both end sides of tubular blank 10c reduces.Consequently, the contraction that is subjected to the length direction both end sides of this tubular blank 10c pulls, and the length direction center side that can be suppressed at tubular blank 10c is sunk.
In addition, the invention is not restricted to described embodiment, the distortion in the scope that can realize the object of the invention, improvement etc. are also contained among the present invention.
For example, in the present embodiment, on metal film 21A, the 31A of the second expansion-molded device 8, form protuberance 331, when carrying out the conquassation forming process, protuberance 331 is transferred on the tubular blank 10b, but is not limited thereto.That is, also can on the metal film 21,31 of the first expansion-molded device 6, form protuberance, when carrying out the expander forming process, protuberance is transferred on the tubular blank 10a.
In addition, in the present embodiment, tubular blank 10a～10d is that aluminium alloy is made, but is not limited thereto, and also can be that other are metal.
In addition, in the present embodiment,, but be not limited thereto, also can supply with other fluid by the internal feed air of air feeder 60 to tubular blank 10a～10d.
Claims (3)
1. heat expansion building mortion in the die cavity of first metal film, is supplied with the work piece configuration of warmed-up tubulose in advance fluid and with the pressure of this fluid described workpiece pushing and pressing is formed on the cavity surface of described first metal film in described workpiece, then,
With described work piece configuration in the die cavity of second metal film, in described workpiece, supply with fluid and with the pressure of this fluid with described workpiece pushing and pressing on the cavity surface of described second metal film, described workpiece is cooled off one side on one side by this cavity surface and form, it is characterized in that
On the distolateral part that pushes against of length direction in the cavity surface of described first metal film, be formed with the protuberance of cross section circular shape to workpiece.
2. heat expansion manufacturing process in the die cavity of metal film, is supplied with the work piece configuration of pre-heated tubulose fluid and with the pressure of this fluid described workpiece pushing and pressing is formed on the cavity surface of described metal film in described workpiece, it is characterized in that,
Before described shaping, at the recess of the distolateral formation of the length direction of described workpiece cross section circular shape.
3. heat expansion formed products is the heat expansion formed products of the tubulose that is shaped by heat expansion, it is characterized in that,
At the distolateral recess that is formed with the cross section circular shape of length direction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-178953 | 2009-07-31 | ||
| JP2009178953A JP5437730B2 (en) | 2009-07-31 | 2009-07-31 | Hot bulge forming apparatus, hot bulge forming method, and hot bulge formed product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101987337A true CN101987337A (en) | 2011-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102429511A Pending CN101987337A (en) | 2009-07-31 | 2010-07-30 | Hot bulge forming apparatus, a hot bulge forming method and a product formed through hot bulge forming |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20110023568A1 (en) |
| JP (1) | JP5437730B2 (en) |
| CN (1) | CN101987337A (en) |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105246612A (en) * | 2013-05-24 | 2016-01-13 | 蒂森克虏伯钢铁欧洲股份公司 | Method and device for producing a shaped component |
| CN105246612B (en) * | 2013-05-24 | 2018-03-13 | 蒂森克虏伯钢铁欧洲股份公司 | Method and apparatus for being manufactured component |
| CN104438878A (en) * | 2014-12-08 | 2015-03-25 | 无锡朗贤汽车组件研发中心有限公司 | High-pressure gas bulging thermoforming die of boron steel pipe |
| CN104525746A (en) * | 2015-01-06 | 2015-04-22 | 哈尔滨工业大学（威海） | Rapid heating and forming integrated device and method |
| CN113814672A (en) * | 2021-10-27 | 2021-12-21 | 三门峡三星智能装备制造有限公司 | Axle housing forming process |
Also Published As
| Publication number | Publication date |
|---|---|
| US20110023568A1 (en) | 2011-02-03 |
| JP5437730B2 (en) | 2014-03-12 |
| JP2011031265A (en) | 2011-02-17 |
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Application publication date: 20110323 |