CN107570572A - Symmetrical casting liquid-filling shaping device and manufacturing process - Google Patents
Symmetrical casting liquid-filling shaping device and manufacturing process Download PDFInfo
- Publication number
- CN107570572A CN107570572A CN201710781143.4A CN201710781143A CN107570572A CN 107570572 A CN107570572 A CN 107570572A CN 201710781143 A CN201710781143 A CN 201710781143A CN 107570572 A CN107570572 A CN 107570572A
- Authority
- CN
- China
- Prior art keywords
- former
- formpiston
- cavity
- liquid
- infusion pipeline
- 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
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention provides a kind of symmetrical casting liquid-filling shaping device, includes formpiston (1), former (3) and blank holder (2)；Cavity (300) and the first infusion pipeline (51) are provided with former (3), the cavity (300) runs through former (3) upper surface；Cavity (300) is internally formed liquid holding space, and the first infusion pipeline (51) is interconnected with liquid holding space；Platen gap is formed between blank holder (2) and former (3)；The height of platen gap can be adjusted；Central through hole is provided with blank holder (2), formpiston (1) is reached in liquid holding space through the central through hole.Present invention also offers a kind of manufacturing process using above-mentioned symmetrical casting liquid-filling shaping device.Middle-jiao yang, function of the spleen and stomach model face of the present invention matches with former type face, and shaping is carried out to the final type face of drawing parts, the shaping effect of alternative a part of supercharging pressure, effectively reduces supercharging pressure, improves product size precision.
Description
Technical field
The present invention relates to a kind of flexible die forming technology, in particular it relates to which the building mortion and technique of a kind of symmetrical casting, special
It is not a kind of symmetrical casting liquid-filling shaping device and manufacturing process.
Background technology
Variable curvature symmetrical casting (the rotary body symmetrical casting that section is made up of different radii circular arc) is space flight type product
Important core in dynamical system, its architectural feature are the revolving parts being made up of different curvature radius, for transmitting fire
Arrow and satellite play an important role.Because specification species is more, required shaping dies specification is various, at present space industry for
Variable curvature symmetrical casting uses punching block drawing and forming technology, and the technology often leads to plate by part due to suspension area be present
Unstability and produce wall thickness reduction or corrugation the defects of, so as to influence product evenness of wall thickness and follow-up assembling manufacturing.
Liquid-filling shaping is a kind of flexible die forming technology, and flexible plastic processing can be achieved.It is adapted to produce complex-shaped, batch
Plate material parts small, size and shape is changeable.It is close beneficial to hydraulic pressure again due to the demand that Aero-Space and auto manufacturing develop
The progress of encapsulation technique, obtains important breakthrough in recent years, is rapidly developed.Sheet material Hydraulic shaping technology is with car industry and boat
My god, aircraft industry largely developed rapidly using complex-shaped structural member, some new forming technologies continuously emerge, technology development
Make rapid progress, greatly expand the scope of liquid-filling shaping technique, the appearance of these new technologies, improve production efficiency, improve
The forming property of plate.
Patent document CN102641954B discloses a kind of Drawing Die, including cavity die structure, flanging coil structures and punch-pin knot
Structure.When this Drawing Die works, punch-pin axle is driven by bevel-gear sett and key and rotated, and cavity plate declines, at flanging coil structures
In non-working condition, when cavity plate is close to flanging coil structures, the hydraulic coupling of blank holder makes plate be pasted with lower rotary table structure and cavity plate
Tightly, then decline together, when plate touches punch-pin axle, punch-pin axle drive plate rotate, cavity plate, top rotary table structure, lower turn
Dish structure is driven by plate and rotated together, while cavity plate and lower rotary table structure continue to decline until drawing and forming.According to patent text
Readme is offered, the limit drawing coefficient of plate can be reduced, gives full play to the potential of material, reduces the requirement to material property,
Greatly save expensive sheet material, particularly advanced high-strength panel.But the structure that the patent document provides is in punching block drawing
During, side-walls are also easy to produce corrugation ripple, cause subsequent turning processing characteristics poor, and punching block easily has wall unevenness
The problem of even.
The content of the invention
For in the prior art the defects of, it is an object of the invention to provide a kind of symmetrical casting liquid-filling shaping device and shaping
Method.
According to symmetrical casting liquid-filling shaping device provided by the invention, formpiston, former and blank holder are included；
Cavity and the first infusion pipeline are provided with former, the cavity runs through former upper surface；
Inside cavity forms liquid holding space, and the first infusion pipeline is interconnected with liquid holding space；
Platen gap is formed between blank holder and former；The height of platen gap can be adjusted；
Central through hole is provided with blank holder, formpiston is reached in liquid holding space through the central through hole.
Preferably, the cavity is revolving body；Cavity wall forms guide part with being bonded forming section；
Profile bearing of trend is turned round along cavity, former upper surface, guide part, fitting forming section smoothly transit connection successively；
On former axial cross section, guide angle α, the guide angle α between former upper surface and guide part be present is obtuse angle.
Preferably, it is bonded forming section and change is present along revolution profile bearing of trend curvature；
Formpiston type face matches with former type face.
Preferably, blank holder includes flanging inner ring and flanging outer ring；
Flanging inner ring is detachably connected with flanging outer ring.
Preferably, also comprising former mould bases；
Former mould bases is detachably connected with former.
Preferably, the second infusion pipeline is provided with former mould bases；
Connected between first infusion pipeline and the second infusion pipeline the two infusion pipelines by sealing ring.
Preferably, also comprising hydraulic press；The hydraulic press includes master slider, upper blankholder slide and following table；
Formpiston, blank holder, former are connected with master slider, upper blankholder slide, following table respectively.
Preferably, the connected entrance of the first infusion pipeline and liquid holding space is located at the bottom of cavity.
Present invention also offers a kind of manufacturing process using above-mentioned symmetrical casting liquid-filling shaping device, following step is included
Suddenly：
Step S1：The diameter of the symmetrical casting of shaping is processed as needed from the flanging inner ring to match and the moon
Mould；
Step S2：The flanging inner ring of selection, former are fixedly connected with flanging outer ring, former mould bases respectively, the first transfusion
Pipeline installs sealing ring with the second infusion pipeline junction and orifice position is alignd；
Step S3：Place plate on former upper surface, by formpiston, former mould bases, blank holder respectively with master slider, leave office
Face, upper blankholder slide are fixedly connected, and on the basis of formpiston, adjust the platen gap between blank holder and former；
Step S4：By infusion pipeline, into liquid holding space, topping up to being flushed with plate, starts hydraulic press, and blank holder closes
Mould；
Step S5：Formpiston comes downwards to be bonded with plate after, hydraulic press implement hydraulic loaded, as drawing height increases, contain
Liquid space Simultaneous Pressure changes；
Step S6：Hydraulic loaded is kept after sheet metal deep drawing to final height, and drawing pressure is applied by formpiston so that plate is same
When be bonded with formpiston, former, shaping is carried out to plate to obtain symmetrical casting；
Step S7：Infusion pipeline release, the symmetrical casting of shaping is taken out after hydraulic press backhaul.
Compared with prior art, the present invention has following beneficial effect：
1st, middle-jiao yang, function of the spleen and stomach model face of the present invention and former type face match, and shaping is carried out to the final type face of drawing parts, alternative
The shaping effect of a part of supercharging pressure, supercharging pressure is effectively reduced, improve product size precision.
2nd, using the former type face to match with formpiston type face, topping up cavity volume can be effectively reduced, reduces filling process
Equipment energy consumption.
3rd, former entrance sets guide angle α, and α>90 °, former is flowed into material and is oriented to, forming process plate can be improved
Material patch imitates fruit, effectively reduces suspension area construction instability trend, improves product evenness of wall thickness after shaping.
4th, blank holder and former are designed to Split type structure, realize interchangeability, and different sizes, rule can be met after once mounting
The shaping demand of lattice symmetrical casting, improve the scope of application and production efficiency of device.
5th, the present invention can complete the liquid-filling shaping of variable curvature symmetrical casting in set of device, reduce traditional punching block shaping
Needed for different passage annealing operations, formation of parts wall thickness reduction amount is smaller and thickness distribution is uniform, improves symmetrical casting
Processing efficiency and dimensional accuracy.
Brief description of the drawings
The detailed description made by reading with reference to the following drawings to non-limiting example, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is symmetrical casting liquid-filling shaping device semi-cutaway provided by the invention；
Fig. 2 is symmetrical casting liquid-filling shaping device stereogram provided by the invention；
Fig. 3 is schematic diagram before Sheet metal forming processing；
Fig. 4 is schematic diagram in Sheet metal forming processing；
Fig. 5 is Sheet Metal Processing into target symmetrical casting schematic diagram.
Shown in figure：
The former mould bases 4 of formpiston 1
The infusion pipeline 5 of blank holder 2
The infusion pipeline 51 of flanging inner ring 21 first
The infusion pipeline 52 of flanging outer ring 22 second
The sealing ring 6 of former 3
The plate 7 of cavity 300
The master slider 81 of guide part 31
It is bonded blankholder slide 82 on forming section 32
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
In the description of the invention, it is to be understood that term " on ", " under ", "front", "rear", "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " top ", " bottom ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position
Relation is put, it is of the invention necessary with simplified description, rather than the device or element of instruction or hint meaning to be for only for ease of description
With specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
As shown in Figure 1 and Figure 2, in embodiment, symmetrical casting liquid-filling shaping device provided by the invention includes formpiston 1, former
3rd, former mould bases 4 and blank holder 2, wherein blank holder 2 are again comprising flanging inner ring 21 and flanging outer ring 22.Former 3 and former mould
Connected between frame 4, between flanging inner ring 21 and flanging outer ring 22 by fastener.Cavity 300 and first is provided with former 3
Infusion pipeline 51, cavity 300 run through the upper surface of former 3, and cavity 300 is internally formed liquid holding space, the first infusion pipeline 51 with
Liquid holding space is interconnected, and connected entrance is located at the bottom of cavity 300.In addition, the second infusion pipeline is provided with former mould bases 4
52, when being assembled to former 3 and former mould bases 4, the first infusion pipeline 51 and second infusion pipeline 52 the two woven hoses
Aperture is mutually aligned between road 5, and is connected by sealing ring 6.Platen gap is formed between blank holder 2 and former 3, is actually used
During, plate 7 is placed in the platen gap, for convenience of loading plate 7 and adapting to the processing of different wall plate 7,
Platen gap can be adjusted.Central through hole is provided with blank holder 2, formpiston 1 can run through the central through hole and reach Sheng
In liquid space.In addition, as shown in figure 3, the present invention also includes hydraulic press, the hydraulic press includes master slider 81, upper blankholder slide
82 and following table, when being processed to plate 7, the master slider 81 of hydraulic press, upper blankholder slide 82 respectively with formpiston 1, flanging
Circle 2 is fixed, and former mould bases 4 is then placed on the following table of hydraulic press.
Between former 3 and former mould bases 4, between flanging inner ring 21 and flanging outer ring 22 by fastener with dismountable side
Formula links together, and is advantageous to change the former 3 and flanging inner ring 21 of different model specification, to adapt to returning for different model specification
The processing of part is turned, so as to realize the one-shot forming of symmetrical casting, handling return among tradition is eliminated, improves part forming precision
And efficiency, meanwhile, also greatly save manufacturing cost of the invention.In actual use, plate 7 is pressed in the moon by blank holder 2
On mould 3, plate 7 covers the upper end open of cavity 300, highly pressurised liquid is filled with into liquid holding space by infusion pipeline 5, in formation
High-pressure forming, reduces suspension area construction instability trend, and formpiston 1 moves downward processing plate under the promotion of hydraulic press master slider 81
7, realize that single pass shapes.To meet the needs of the shape of the symmetrical casting of processing, the cavity 300 of former 3 is also revolving body, cavity
300 walls form guide part 31 with being bonded forming section 32, turn round profile bearing of trend along cavity 300, the upper surface of former 3, are oriented to
Portion 31, fitting forming section 32 smoothly transit connection successively.Fruit is imitated to improve the patch of forming process plate 7, reduces suspension area material
Unstability trend, on the axial cross section of former 3, guide angle α, the guide angle α between the upper surface of former 3 and guide part 31 be present is
Obtuse angle.Preferably, there is change in the curvature for being bonded forming section 32, to adapt to the processing of variable curvature symmetrical casting；In addition, formpiston 1
Type face matches with the type face of former 3, that is to say, that the fillet in the type face of former 3 matches with the fillet on the type face of formpiston 1, the knot
Structure can carry out shaping to the final type face of plate 7 after drawing, the shaping effect of alternative a part of supercharging pressure, effectively reduce
Supercharging pressure in liquid holding space, filling process equipment energy consumption is reduced, improve product size precision.In preference, blank holder 2 is also
It can be integrally formed, can also be integrally formed between former 3 and former mould bases 4, but this structure can cause different rule
The symmetrical casting of lattice number needs corresponding special mould, considerably increases the manufacturing cost of mould.Preferably, the first woven hose
The connected entrance of road 51 and liquid holding space can also be located at the other positions except the bottom of cavity 300, but may cause liquid effects in
Pressure imbalance on plate 7 causes crudy to reduce.
Present invention also offers a kind of manufacturing process using above-mentioned symmetrical casting liquid-filling shaping device, following step is included
Suddenly：Step S1：The diameter of the symmetrical casting of shaping is processed as needed from the flanging inner ring 21 to match and former 3；
Step S2：As shown in figure 3, the flanging inner ring 21 of selection, former 3 are fixedly connected with flanging outer ring 22, former mould bases 4 respectively,
First infusion pipeline 51 installs sealing ring 6 with the junction of the second infusion pipeline 52 and orifice position is alignd；Step S3：In former
On 3 upper surfaces place plate 7, by formpiston 1, former mould bases 4, blank holder 2 respectively with master slider 81, following table, upper blankholder slide
82 are fixedly connected, and on the basis of formpiston 1, adjust the platen gap between blank holder 2 and former 3；Step S4：Pass through infusion pipeline
5 into liquid holding space topping up to being flushed with plate 7, start hydraulic press, the 2-in-1 mould of blank holder；Step S5：As shown in figure 4, formpiston 1
Coming downwards to after being bonded with plate 7, hydraulic press implements hydraulic loaded, as drawing height increases, the change of liquid holding space Simultaneous Pressure；
Step S6：As shown in figure 5, keeping hydraulic loaded after the drawing of plate 7 to final height, and drawing pressure is applied by formpiston 1 so that plate
Material 7 is bonded with formpiston 1, former 3 simultaneously, carries out shaping to plate 7 to obtain symmetrical casting；Step S7：The release of infusion pipeline 5,
The symmetrical casting of shaping is taken out after hydraulic press backhaul.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.In the case where not conflicting, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (9)
1. a kind of symmetrical casting liquid-filling shaping device, it is characterised in that include formpiston (1), former (3) and blank holder (2)；
Cavity (300) and the first infusion pipeline (51) are provided with former (3), the cavity (300) runs through former (3) upper end
Face；
Cavity (300) is internally formed liquid holding space, and the first infusion pipeline (51) is interconnected with liquid holding space；
Platen gap is formed between blank holder (2) and former (3)；The height of platen gap can be adjusted；
Central through hole is provided with blank holder (2), formpiston (1) is reached in liquid holding space through the central through hole.
2. symmetrical casting liquid-filling shaping device according to claim 1, it is characterised in that the cavity (300) is revolution
Body；Cavity (300) wall forms guide part (31) with being bonded forming section (32)；
Profile bearing of trend is turned round along cavity (300), former (3) upper surface, guide part (31), is bonded forming section (32) light successively
Slip over and cross connection；
On former (3) axial cross section, guide angle α, the guide angle α between former (3) upper surface and guide part (31) be present
For obtuse angle.
3. symmetrical casting liquid-filling shaping device according to claim 2, it is characterised in that fitting forming section (32) edge revolution
Change be present in contour extension directional curvature；
Formpiston (1) type face matches with former (3) type face.
4. symmetrical casting liquid-filling shaping device according to claim 1, it is characterised in that blank holder (2) is included in flanging
Enclose (21) and flanging outer ring (22)；
Flanging inner ring (21) is detachably connected with flanging outer ring (22).
5. symmetrical casting liquid-filling shaping device according to claim 1, it is characterised in that also comprising former mould bases (4)；
Former mould bases (4) is detachably connected with former (3).
6. symmetrical casting liquid-filling shaping device according to claim 5, it is characterised in that former mould bases is provided with (4)
Second infusion pipeline (52)；
It is connected between the two infusion pipelines (5) of first infusion pipeline (51) and the second infusion pipeline (52) by sealing ring (6).
7. symmetrical casting liquid-filling shaping device according to claim 1, it is characterised in that also comprising hydraulic press；The liquid
Press includes master slider (81), upper blankholder slide (82) and following table；
Formpiston (1), blank holder (2), former (3) are connected with master slider (81), upper blankholder slide (82), following table respectively.
8. symmetrical casting liquid-filling shaping device according to claim 1, it is characterised in that the first infusion pipeline (51) is with containing
The connected entrance of liquid space is located at the bottom of cavity (300).
9. a kind of manufacturing process of the symmetrical casting liquid-filling shaping device any one of usage right requirement 1 to 8, its feature
It is, comprises the steps of：
Step S1：The diameter of the symmetrical casting of shaping is processed as needed from the flanging inner ring (21) and former to match
(3)；
Step S2：The flanging inner ring (21) of selection, former (3) are fixed with flanging outer ring (22), former mould bases (4) respectively and connected
Connect, the first infusion pipeline (51) installs sealing ring (6) with the second infusion pipeline (52) junction and orifice position is alignd；
Step S3：On former (3) upper surface place plate (7), by formpiston (1), former mould bases (4), blank holder (2) respectively with
Master slider (81), following table, upper blankholder slide (82) are fixedly connected, on the basis of formpiston (1), adjustment blank holder (2) and former
(3) platen gap between；
Step S4：By infusion pipeline (5), into liquid holding space, topping up to being flushed with plate (7), starts hydraulic press, blank holder
(2) matched moulds；
Step S5：Formpiston (1) comes downwards to be bonded with plate (7) after, hydraulic press implement hydraulic loaded, as drawing height increases,
Liquid holding space Simultaneous Pressure changes；
Step S6：Hydraulic loaded is kept after plate (7) drawing to final height, and drawing pressure is applied by formpiston (1) so that plate
(7) while with formpiston (1), former (3) it is bonded, shaping is carried out to plate (7) to obtain symmetrical casting；
Step S7：Infusion pipeline (5) release, the symmetrical casting of shaping is taken out after hydraulic press backhaul.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710781143.4A CN107570572B (en) | 2017-09-01 | 2017-09-01 | Symmetrical casting liquid-filling shaping method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710781143.4A CN107570572B (en) | 2017-09-01 | 2017-09-01 | Symmetrical casting liquid-filling shaping method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107570572A true CN107570572A (en) | 2018-01-12 |
| CN107570572B CN107570572B (en) | 2019-05-31 |
Family
ID=61030569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710781143.4A Active CN107570572B (en) | 2017-09-01 | 2017-09-01 | Symmetrical casting liquid-filling shaping method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107570572B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108723160A (en) * | 2018-06-22 | 2018-11-02 | 西安飞机工业（集团）有限责任公司 | A kind of manufacturing process and shaping dies of thin-walled spherical part |
| CN114535393A (en) * | 2022-01-18 | 2022-05-27 | 桂林电子科技大学 | Stepped pre-expansion forming processing device and method for stepped part |
| WO2023107053A3 (en) * | 2021-12-06 | 2023-08-10 | Coşkunöz Kalip Maki̇na Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ | Mold embodiment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0976037A (en) * | 1995-09-12 | 1997-03-25 | Topy Ind Ltd | Disk forming method for automobile wheel and device therefor |
| DE19717953A1 (en) * | 1997-04-28 | 1998-10-29 | Bayerische Motoren Werke Ag | Hydromechanical reverse-drawing method for sheet-metal |
| DE10153600A1 (en) * | 2001-11-02 | 2003-05-15 | Forschungsges Umformtechnik | Chasing and subsequent hydromechanical deep drawing process involves performing sheet in hydraulic fluid in drawing direction |
| CN104607524A (en) * | 2014-12-31 | 2015-05-13 | 哈尔滨工业大学 | Tailor welded blank integral drawing forming device and method for large-scale curved surface part |
| CN105537362A (en) * | 2016-02-26 | 2016-05-04 | 哈尔滨工业大学 | Device and method for reducing hydro-mechanical deep drawing force of large-size plate component |
| CN106363067A (en) * | 2015-07-20 | 2017-02-01 | 上海航天设备制造总厂 | Overall shaping device for box bottom of spacecraft fuel storage box and shaping method for same |
-
2017
- 2017-09-01 CN CN201710781143.4A patent/CN107570572B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0976037A (en) * | 1995-09-12 | 1997-03-25 | Topy Ind Ltd | Disk forming method for automobile wheel and device therefor |
| DE19717953A1 (en) * | 1997-04-28 | 1998-10-29 | Bayerische Motoren Werke Ag | Hydromechanical reverse-drawing method for sheet-metal |
| DE10153600A1 (en) * | 2001-11-02 | 2003-05-15 | Forschungsges Umformtechnik | Chasing and subsequent hydromechanical deep drawing process involves performing sheet in hydraulic fluid in drawing direction |
| CN104607524A (en) * | 2014-12-31 | 2015-05-13 | 哈尔滨工业大学 | Tailor welded blank integral drawing forming device and method for large-scale curved surface part |
| CN106363067A (en) * | 2015-07-20 | 2017-02-01 | 上海航天设备制造总厂 | Overall shaping device for box bottom of spacecraft fuel storage box and shaping method for same |
| CN105537362A (en) * | 2016-02-26 | 2016-05-04 | 哈尔滨工业大学 | Device and method for reducing hydro-mechanical deep drawing force of large-size plate component |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108723160A (en) * | 2018-06-22 | 2018-11-02 | 西安飞机工业（集团）有限责任公司 | A kind of manufacturing process and shaping dies of thin-walled spherical part |
| WO2023107053A3 (en) * | 2021-12-06 | 2023-08-10 | Coşkunöz Kalip Maki̇na Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ | Mold embodiment |
| CN114535393A (en) * | 2022-01-18 | 2022-05-27 | 桂林电子科技大学 | Stepped pre-expansion forming processing device and method for stepped part |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107570572B (en) | 2019-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102764808B (en) | Hydraulic forming device and method of reducing cylindrical part | |
| CN107570572A (en) | Symmetrical casting liquid-filling shaping device and manufacturing process | |
| CN101972795B (en) | Machining process of metal elbow | |
| CN104438537B (en) | The swollen shape drawing forming method of a kind of variable curvature half flat tube part | |
| CN103272910B (en) | Tubular product hydraulic forming device capable of achieving inside and outside pressurization | |
| CN110666457A (en) | Preparation method of titanium alloy thin-wall lightweight flap part | |
| CN103331575B (en) | A kind of moulding process of two-way tubular boss wheel hub | |
| CN107052124A (en) | A kind of method for bending thin-wall rectangular section tubing | |
| CN104816488A (en) | Reinforcing rib wall plate co-curing forming method | |
| CN102921791B (en) | Section-variable hollow component forming device and method | |
| CN206140787U (en) | Reverse nested double combustion chamber structure engine heat insulation layer forming device of single casing | |
| CN102672025B (en) | Manufacturing method of drawing die face on handle of outboard door panel of automobile and outboard door panel of automobile | |
| CN105013919B (en) | Hydroforming device and method of spatial multi-feature hollow body component | |
| CN106001235A (en) | Forming method and forming mold of semi-closed sheet part | |
| CN205217711U (en) | Bloated shape device of frame -type hydraulic pressure pipe fitting | |
| CN202105868U (en) | Asymmetric forming system and forming device of asymmetric pipe fittings | |
| CN205074428U (en) | Control elbow stamping forming mould | |
| CN206918496U (en) | Novelty throttling socket type pipeline | |
| CN105921587A (en) | Forming machining method and device for three branch pipes side by side | |
| CN103817187B (en) | A kind of pipe fitting bending apparatus | |
| CN102641934B (en) | Forming method for cylindrical shell piece with flanged holes | |
| CN206065309U (en) | Can be used for circumferential non-close variable cross-section tube shape component fixture for forming | |
| CN206106410U (en) | Dress ring device of wound gasket | |
| CN206305278U (en) | A kind of thin-walled wave disc flexible forming apparatus | |
| CN206943633U (en) | Throttle socket type pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |