CN106180463A - The spin-on process of a kind of plate body composite molding and device - Google Patents
The spin-on process of a kind of plate body composite molding and device Download PDFInfo
- Publication number
- CN106180463A CN106180463A CN201610561421.0A CN201610561421A CN106180463A CN 106180463 A CN106180463 A CN 106180463A CN 201610561421 A CN201610561421 A CN 201610561421A CN 106180463 A CN106180463 A CN 106180463A
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- core
- slab
- preform
- spinning
- spinning roller
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Classifications
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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
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
- B21D51/44—Making closures, e.g. caps
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
- B21D22/16—Spinning over shaping mandrels or formers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/24—Making hollow objects characterised by the use of the objects high-pressure containers, e.g. boilers, bottles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The present invention provides spin-on process and the device of a kind of plate body composite molding, including: preform core is fixed on core driver element, and slab is fixed on preform core, and tail top clamps slab with preform core；Slab edge is clamped by slab grip unit；Core drive unit drives preform core rotates and drives slab, control preform spinning roller and make its core of fitting, along the radial and axial at the uniform velocity feeding of core, control preform spinning roller and preform core gap, use multi-step forming track to roll slab to control radially apart from Thickness Distribution, until slab shaping terminates, to prepare prefabricated blank；Prefabricated blank is installed on target core, and the slab face that spinning rolled contacts with target core, starts core driver element, and spinning spinning roller, by setting track feeding, moves to hold greatly along bus from core small end, and after slab is fully formed laminating core, mould pressing terminates.The present invention simplifies the technique of slab preforming, improves stock utilization, the guarantee accuracy of manufacture.
Description
Technical field
The present invention relates to spin forming technique field in Metal Forming, concrete, relate to a kind of plate body composite molding
Spin-on process and device.
Background technology
End socket part is the typical part in spinning process, as the main pressure-containing member in pressure vessel, passes through spinning
End socket after shaping can obtain the structure of integration, and mechanical property relatively melon lobe butt-welding type end socket is more uniform, extensively should
In boiler, satellite, nuclear reactor, Rocket tank bottom and other all kinds of pressure pressure vessels for the chemical industry equipment.End socket itself
Performance parameter and dimensional accuracy be directly connected to the safety and reliability of equipment, therefore the shape of end socket, size and wall thickness
Control is particularly important.
Spinning, as Large Elastic-Plastic Deformation process, relates to geometrical non-linearity, material nonlinearity, boundary condition non-linear,
Forming process is sufficiently complex, easily occurs that Instability wrinkling causes shaping unsuccessfully, or occurs excessively cutting thin making part uniformity
Poor, the precision control of quality that whole spinning process carries out precision also seems extremely difficult.Evenness of wall thickness and pad pasting degree
Usually used as the precision evaluation index of the quality evaluating mould pressing component, uneven thickness, pad pasting degree difference are also in mould pressing
Most commonly seen problem.Traditional spinning process selects equal thickness plate as initial slab, and forming technology can be divided into common rotation
Pressure and shear spinning, in shear spinning, wall thickness is cut and thin is followed sinusoidal rule, the component being continually changing for semi-cone angle, reduction with
The reduction of semi-cone angle and increase so that the evenness of wall thickness of end socket part is very poor, but owing to forming process belongs to shear spinning,
Slab can preferably be fitted core, and pad pasting degree is preferable；During conventional spinning, the diameter of slab can occur significantly to receive
Contracting or expansion, due to flange weak separation, forming process easily produces wrinkling or cracking phenomena, it addition, flange
Shaping hinder also make spinning roller front produce metal accumulation, increase slab shape tension, cause the spinning roller zone of action
Slab occur drawing thin phenomenon, the component waist after shaping there will be certain thinning phenomenon, and evenness of wall thickness is poor, pad pasting degree
Also it is difficult to ensure.Therefore, traditional processing technique has been difficult to meet the manufacture demand that spinning component precise treatment becomes more meticulous.
About the research of spinning accurate forming method, it is mostly to concentrate on the design analysis of track and key process parameter at present
Optimization.Document: Huang Chenglong. conventional spinning forming quality is analyzed and controls research [D]. and South China Science & Engineering University, 2015. use directly
Footpath is mm, 1.8mm thickness 1060-O pure aluminum plate, and research finds that first passage uses middle rotation track to be more beneficial for part wall thickness and divides
Cloth, uses R25-12 to be combined profile spinning roller and is more beneficial for reducing the reduction of general rotation part.Utilize artificial neural network and genetic algorithms
The technological parameter affecting wall thickness is optimized by the method combined, and wall thickness reduction is decreased to 16.22%.This process
Shortcoming be feature based on general lathe turner's skill self, so occurring in that of being difficult to avoid that of the component after Cheng Xinging is thinning, reduction reaches
16.22%, distribute pretreatment owing to have ignored the wall thickness of initial slab, evenness of wall thickness is still difficult to ensure that.
In terms of the slab preforming of spinning, the technique using casting, punching press and Milling Process at present more, document: Liu
Pottery. magnesium alloy cylinder part spinning forming process research [D]. University Of Chongqing, 2010. proposition preforming strands carry out spinning plasticity
Shape；Document: bright in the moon, Zhang Xuhu, Zhou Xiaojian, etc. large thin-wall aluminium alloy Loadings On Hemispherical Shell spinning forming process research [J].
Material science and technique, 2013,21 (4): the 127-130. processes using punching press preforming and spinning to combine manufacture big
Type thin-walled spherical tank housing.It is disadvantageously, casting and punching press make process planning the most complicated loaded down with trivial details, and Milling Process is difficult
The preforming slab less to meet wall thickness difference, the accuracy of manufacture is difficult to ensure that.
Summary of the invention
The present invention is directed to defect and the deficiency of spinning precision form prior art, it is proposed that the rotation of a kind of plate body composite molding
Pressure method and device, simplifies the preforming process of spinning slab, and the effect of rolling of spinning roller makes slab along radial distance weight
Newly distribute thickness, the anti-unstability ability of flange can be strengthened, effectively avoid the wrinkling cracking phenomena in forming process, it is easy to
Realize, and the utilization rate of material can be improved, can significantly improve evenness of wall thickness and pad pasting degree simultaneously, take into account spinning work
The forming accuracy of skill and efficiency.
According to an aspect of the invention, it is provided the spin-on process of a kind of plate body composite molding, described method is divided into pre-
Formative stage (1-2 step) and rotary press modelling stage (the 3rd step), step is as follows:
1st step: be preformed by core and be connected on core driver element, equal thickness slab is fixed on preform core
On；Along machine tool chief axis direction applying hydraulic pressure to tail top, make tail top and preform core clamping slab；The marginal portion of slab
Clamped by slab grip unit, to prevent marginal portion warpage in forming process of slab；
2nd step: core drive unit drives preform core high speed rotating, slab is driven by preform core and rotates；Rotation
Wheel drive unit drive preform spinning roller feeding make slab pad pasting preform core, then along preform core radial direction and
Axially at the uniform velocity feeding；Control the gap of preform spinning roller and preform core simultaneously, utilize multi-pass track to roll slab with control
The Thickness Distribution of making sheet base radially distance, terminates until slab shapes, and prepares prefabricated blank；
3rd step: prepared prefabricated blank is fixed on target core, core drive unit drives target core high-speed rotary
Turn, spinning roller drive unit drives spinning spinning roller according to set track axially and radially feeding, from the small end of target core along
The bus of target core moves to the big end of target core, and after prefabricated blank is fully formed laminating target core, mould pressing is tied
Bundle.
Preferably, described method includes two stages, respectively preform stage and mould pressing stage, wherein: the 1st step
Being preform stage with the 2nd step, the 3rd step is the pressing formation stage；Slab obtains prefabricated blank, prefabricated blank warp through preform stage
Spending the pressing formation stage obtains final goal part, only need to change preforming core two stages and become target core, preforming
Spinning roller becomes pressure spinning roller, carries out in chronological order realizing on same lathe.
Preferably, in the 2nd step, described track is the gap of preform spinning roller and preforming core；Preform spinning roller
Being continually varying gap with the gap of preforming core, its gap width is according to cutting rotation rule and the design of general rotation reduction, and adopts
Control method with the incremental progressively feeding in shunting time.
According to another aspect of the present invention, it is provided that the spinning apparatus of a kind of plate body composite molding, described device includes:
Preform core, target core, preform spinning roller, spinning spinning roller, tail top, slab grip unit, spinning roller driver element, core drive
Moving cell, wherein:
In the preform stage: preform spinning roller is placed in the top of slab；Preform core is placed in the lower section of slab；Tail top is subject to
To the hydraulic coupling along machine tool chief axis direction, and preform core coordinates to clamp slab；Slab grip unit is bolted
On preform core, for clamping the edge of slab to prevent warpage；Preform core be connected with core driver element and by
Core drive unit drives high speed rotating；Preform spinning roller is connected with spinning roller driver element, and preform spinning roller is driven by spinning roller
Unit drives and shapes track feeding along setting；
In the mould pressing stage: spinning spinning roller is placed in the top of slab, target core is placed in the lower section of described prefabricated blank；Tail
Top is by the hydraulic coupling along machine tool chief axis direction, and target core coordinates to clamp described prefabricated blank；Target core drives with core
Moving cell is connected and by core drive unit drives high speed rotating, and spinning spinning roller is connected with spinning roller driver element, and spinning revolves
Take turns by spinning roller drive unit drives and according to the multi-pass spinning track set along the most at the uniform velocity feeding of lathe, until
Mould pressing terminates.
Preferably, the profile of described preform core is rectangle, or is the rectangle of edge rounding, or is circular arc
Shape.
Preferably, described slab grip unit is ring-band shape, and the internal diameter of slab grip unit is less than the external diameter of slab, outer
Footpath is more than the external diameter of slab；Slab grip unit is bolted on preform core.
Preferably, described preform spinning roller and the edge of spinning spinning roller are semicircle arc structure；Bright for material flowing
Aobvious forming process, the quantity of preform spinning roller and spinning spinning roller is multiple；The material of preform spinning roller and spinning spinning roller all selects
Use grinding tool steel.
Preferably, described target core is core final in spin-forming procedure, and its cross section is oval.
Compared with prior art, the present invention has a following beneficial effect:
(1) technique that this invention simplifies slab preforming, it is possible to be effectively improved stock utilization, its accuracy of manufacture is also
Can be protected；
(2) present invention more reasonably distributes the wall thickness of slab, it is to avoid cut rotation and the wall unevenness that brought of general lathe turner's skill
Phenomenon, is conducive to improving the anti-unstability ability of flange, effectively improves the forming accuracy of spinning component；
(3) mode of texturing of the present invention is more flexible and changeable, and automaticity is high, it is possible to take into account the precision that slab shapes simultaneously
And efficiency.
Accompanying drawing explanation
By the detailed description non-limiting example made with reference to the following drawings of reading, the further feature of the present invention,
Purpose and advantage will become more apparent upon:
Fig. 1 is the structural representation of the device for exerting of the plate body composite molding of one embodiment of the invention；
Fig. 2 is a kind of double rotary wheel forming schematic diagram without pre-flange of one embodiment of the invention；
Fig. 3 is a kind of forming schematic diagram with pre-flange of one embodiment of the invention；
Fig. 4 is the one band preformed forming schematic diagram of one embodiment of the invention；
Fig. 5 is the forming path schematic diagram of embodiments of the invention one；
Fig. 6 is the forming path schematic diagram of embodiments of the invention two；
In figure: 1 is slab, 2 is preform spinning roller, and 3 is preform core, and 4 for shaping track, and 5 is tail top, and 6 is slab
Grip unit.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following example will assist in the technology of this area
Personnel are further appreciated by the present invention, but limit the present invention the most in any form.It should be pointed out that, the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement.These broadly fall into the present invention
Protection domain.
As it is shown in figure 1, the spinning apparatus of a kind of plate body composite molding is for carrying out spinning preform, described dress to slab 1
Put and include: slab grip unit 6, preform spinning roller 2, preform core 3, tail top 5, core driver element (not showing in Fig. 1) with
And spinning roller driver element (not showing in Fig. 1), wherein:
Preform spinning roller 2 is arranged at the top of slab 1；Preform core 3 is arranged at the lower section of slab 1；Tail top 5 is by edge
The hydraulic coupling in machine tool chief axis direction, and preform core 3 coordinates to clamp slab 1；Preform core 3 and core driver element phase
Connect and by core drive unit drives high speed rotating；Slab grip unit 6 is bolted on preform core 3, is used for
The edge of clamping slab 1 prevents warpage；Preform spinning roller 2 shapes track 4 (Fig. 1 by spinning roller drive unit drives and along setting
In do not show) feeding.
In the present embodiment, the quantity of described preform spinning roller 2 optional one or more, typically the most commonly used with one to three.
Changing obvious Varying-thickness slab for preparing thickness, in spinning process, material flowability is obvious, it is proposed that use multiple preform
Spinning roller 2.
In the present embodiment, the edge of described preform spinning roller 2 is semicircle arc structure.
In the present embodiment, the profile of described preform core 3 may select rectangle, the rectangle of edge rounding, and circular arc
Shape.
In the present embodiment, mould steel all selected by the material of described preform spinning roller 2 and preform core 3.
As in figure 2 it is shown, when the number of described preform spinning roller 2 is two:
Two preform spinning rollers 2 are all positioned the top of slab 1, and two preform spinning rollers 2 are along the distance of slab 1 axis
Can the identical or a certain distance that staggers；Preform core 3 is positioned the lower section of slab 1；
First by core drive unit drives preform core 3 high speed rotating, then by two preformations of spinning roller drive unit drives
Shape spinning roller 2, along the geometric locus radial feed set, makes slab 1 become unequal thickness plate base, reaches the purpose of plastic forming.
As it is shown on figure 3, when the rectangle that profile is edge rounding of described preform core 3:
Preform core 3 is positioned the lower section of slab 1, and contacts location with slab 1；Preform spinning roller 2 is positioned slab 1
Top；
Preform core 3 and tail top 5 clamp and drive slab 1 high speed rotating；Preform spinning roller 2 the most radially distance makes
Slab 1 is fitted preform core 3, it is achieved pre-flange is to prevent from follow-up rolling generation warpage；Then, preform spinning roller 2 is along setting
Preform spinning roller 2 and the gap feeding of preform core 3, revolve unequal thickness plate base processed, reach the purpose of plastic forming.
As shown in Figure 4, when the profile of described preform core 3 is circular arc:
Preform core 3 is positioned the lower section of slab 1, and contacts location with slab 1；Preform spinning roller 2 is positioned slab 1
Top；
Preform spinning roller 2 is back fed by spinning roller drive unit drives, makes the preforming of slab 1 gradually pad pasting circular arc profile
Core 3；Then, controlling the gap of preform spinning roller 2 and preform core 3, feeding mode is the most progressive, is done step-by-step thickening
The plastic forming of degree slab.
Utilize said apparatus and various shaped form, by the following processing step realization forming to slab 1:
1st step: be preformed by core 3 and be fixedly connected on core driver element, by alignment pin solid for equal thickness slab 1
It is scheduled on preform core 3, applies hydraulic pressure along machine tool chief axis direction to tail top 5 so that tail top 5 and preform core 3
Clamping slab 1；
2nd step: the marginal portion of slab 1 is clamped by slab grip unit 6, to prevent the marginal portion of slab 1 from shaping
During warpage；
3rd step: core drive unit drives preform core 3 high speed rotating, slab 1 is driven rotation by preform core 3；
First controlling preform spinning roller 2 feeding makes slab 1 fit preform core 3, and the radial distance then along preform core 3 is even
Speed feeding；Control the gap of preform spinning roller 2 and preform core 3 simultaneously, use multi-step forming track 4 to roll slab 1 and control
The Thickness Distribution of making sheet base 1 radially distance, terminates until slab 1 shapes, and prepares prefabricated blank；
4th step: prepared prefabricated blank is fixed on target core by alignment pin, the slab that spinning was rolled
Face contacts with target core location；Start core driver element, spinning spinning roller according to set track axially and radially feeding, from
The small end of target core moves to the big end of target core along bus, when prefabricated blank is fully formed to target core of fitting completely
After, mould pressing terminates.
The whole forming process of the present invention includes being two stages, i.e. preform stage and mould pressing stage, initial plate
Base prepares Varying-thickness slab through preform stage, and Varying-thickness slab prepares final goal part for the mould pressing stage,
Two stages need to change core (i.e. preform core, target core) and spinning roller (i.e. preform spinning roller, spinning spinning roller), can be
Carry out in chronological order on same lathe.
Below by two embodiments, forming technology is described further.
Embodiment one:
As it is shown in figure 5, the shaping track 4 in figure is Varied clearance curve shape, it is preforming core 3 in the lower section of slab 1,
Preforming core 3 and tail top 5 drive slab 1 to rotate, spinning roller driver element drive preform spinning roller 2 along slab 1 radial feed,
For making slab 1 have good Plastic Flow when shaping, when shaping track 4 feeding, use incremental load mode, the most past
Rolling slab 1 again and obtain Varying-thickness slab, in forming process, the edge of slab 1 is by clamped by slab grip unit 6, prevents from sticking up
Bent.
Embodiment two:
As shown in Figure 6, the present embodiment is essentially identical with the above embodiments one, except for the difference that, and the preformation in the present embodiment
Core die 3 is circular arc profile core, and when preform spinning roller 2 carries out grinding forming on slab 1, the gap shaping track 4 is
Along the distance of arc normal direction, the method for this rotation Varying-thickness slab so that obtain the Varying-thickness with preforming after molding
Slab.
The technique that this invention simplifies slab preforming, and it is effectively improved stock utilization, its accuracy of manufacture is also protected
Barrier；More reasonably distribute the wall thickness of slab, it is to avoid cut the phenomenon of the wall unevenness that rotation is brought with general lathe turner's skill, be conducive to improving
The anti-unstability ability of flange, effectively improves the forming accuracy of spinning component；Mode of texturing is more flexible and changeable, automatization's journey
Degree height, it is possible to simultaneously take into account precision and efficiency that slab shapes.
Above the specific embodiment of the present invention is described.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformation or amendment within the scope of the claims, this not shadow
Ring the flesh and blood of the present invention.
Claims (9)
1. the spin-on process of a plate body composite molding, it is characterised in that comprise the steps:
1st step: be preformed by core and be connected on core driver element, equal thickness slab is fixed on preform core；Edge
Machine tool chief axis direction applying hydraulic pressure, to tail top, makes tail top and preform core clamping slab, and the edge of slab is pressed from both sides by slab
Hold unit clamping, to prevent marginal portion warpage in forming process of slab；
2nd step: core drive unit drives preform core high speed rotating, slab is driven by preform core and rotates；Spinning roller drives
Moving cell drives preform spinning roller feeding to make slab pad pasting preform core, radial and axial then along preform core
At the uniform velocity feeding；Control the gap of preform spinning roller and preform core simultaneously, utilize multi-pass track to roll slab with panel
The Thickness Distribution of base radially distance, terminates until slab shapes, and prepares prefabricated blank；
3rd step: prepared prefabricated blank is fixed on target core, core drive unit drives target core high speed rotating, rotation
Wheel drive unit driving spinning spinning roller is according to the track axially and radially feeding set, from the small end of target core along target core
The bus of mould moves to the big end of target core, and after prefabricated blank is fully formed laminating target core, mould pressing terminates.
The spin-on process of a kind of plate body composite molding the most as claimed in claim 1, it is characterised in that described method includes two
Stage, respectively preform stage and mould pressing stage, wherein: the 1st step and the 2nd step are preform stage, the 3rd step is pressure
Formative stage；Slab obtains prefabricated blank through preform stage, and prefabricated blank obtains final goal part through the pressing formation stage,
Only need to change preforming core two stages becomes target core, preforming spinning roller to become pressure spinning roller, on same lathe on time
Between order carry out realizing.
The spin-on process of a kind of plate body composite molding the most as claimed in claim 1 or 2, it is characterised in that in the 2nd step, described
Track be the gap of preform spinning roller and preforming core, preform spinning roller is consecutive variations with the gap of preforming core
Gap, its gap width is according to cutting rotation rule and the design of general rotation reduction, and uses the control of shunting time incremental progressively feeding
Method processed.
4. the spinning apparatus of a plate body composite molding, it is characterised in that described device includes: preform core, target core,
Preform spinning roller, spinning spinning roller, tail top, slab grip unit, spinning roller driver element, core driver element, wherein:
The preform stage: preform spinning roller is placed in the top of slab；Preform core is placed in the lower section of slab；Tail top is by along machine
The hydraulic coupling of bed major axes orientation, and the cooperation of preform core is to clamp slab；Slab grip unit is fixed on preform core,
For clamping the edge of slab to prevent warpage；Preform core is connected with core driver element and is driven by core driver element
Dynamic high speed rotating；Preform spinning roller is connected with spinning roller driver element, and preform spinning roller is by spinning roller drive unit drives and along setting
Figuration track feeding；Prefabricated blank is obtained in the described preform stage；
In the mould pressing stage: spinning spinning roller is placed in the top of slab, target core is placed in the lower section of described prefabricated blank；Tail top is subject to
Along the hydraulic coupling in machine tool chief axis direction, and target core coordinates to clamp described prefabricated blank；
Target core is connected with core driver element and by core drive unit drives high speed rotating, and spinning spinning roller drives with spinning roller
Moving cell is connected, and spinning spinning roller is by spinning roller drive unit drives and according to axial along lathe of multi-pass spinning track set
With radially at the uniform velocity feeding, until mould pressing terminates, obtain target part.
The spinning apparatus of a kind of plate body composite molding the most as claimed in claim 4, it is characterised in that described preformation core
Mould, its profile is rectangle, or is the rectangle of edge rounding, or is circular arc.
The spinning apparatus of a kind of plate body composite molding the most as claimed in claim 1, it is characterised in that described slab clamping is single
Unit is ring-band shape, the internal diameter of slab grip unit less than the external diameter of slab, external diameter more than the external diameter of slab.
7. the spinning apparatus of a kind of plate body composite molding as described in any one of claim 4-6, it is characterised in that described is pre-
The edge shaping spinning roller and spinning spinning roller is semicircle arc structure.
The spinning apparatus of a kind of plate body composite molding the most as claimed in claim 7, it is characterised in that described preform spinning roller
It is one or more with the quantity of spinning spinning roller, material selection grinding tool steel.
9. the spinning apparatus of a kind of plate body composite molding as described in any one of claim 4-6, it is characterised in that described mesh
Mark core, its cross section is oval.
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| CN109834149A (en) * | 2019-04-11 | 2019-06-04 | 山东崇盛冶金氧枪有限公司 | A kind of blast furnace tuyere small sleeve preceding cap spin forming device and its technique |
| CN113996690A (en) * | 2021-11-09 | 2022-02-01 | 四川航天长征装备制造有限公司 | Manufacturing method of large thin-wall special-shaped curved surface component |
| CN114147114A (en) * | 2021-10-21 | 2022-03-08 | 航天材料及工艺研究所 | Multi-pass reverse curve track spinning forming method for aluminum alloy plate |
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| CN107497914A (en) * | 2017-07-04 | 2017-12-22 | 上海交通大学 | Flange constrains spinforming apparatus and process |
| CN109213072A (en) * | 2017-09-07 | 2019-01-15 | 中国航空制造技术研究院 | A kind of spinning machine accuracy control method |
| CN108515318A (en) * | 2018-04-04 | 2018-09-11 | 广东博赛数控机床有限公司 | A kind of thin-wall conical part spinning processing method |
| CN109834149A (en) * | 2019-04-11 | 2019-06-04 | 山东崇盛冶金氧枪有限公司 | A kind of blast furnace tuyere small sleeve preceding cap spin forming device and its technique |
| CN109834149B (en) * | 2019-04-11 | 2021-08-27 | 山东崇盛冶金氧枪有限公司 | Front cap spinning forming equipment for blast furnace tuyere small sleeve and process thereof |
| CN114147114A (en) * | 2021-10-21 | 2022-03-08 | 航天材料及工艺研究所 | Multi-pass reverse curve track spinning forming method for aluminum alloy plate |
| CN114147114B (en) * | 2021-10-21 | 2024-05-03 | 航天材料及工艺研究所 | Multi-pass reverse curve track spinning forming method for aluminum alloy plate |
| CN113996690A (en) * | 2021-11-09 | 2022-02-01 | 四川航天长征装备制造有限公司 | Manufacturing method of large thin-wall special-shaped curved surface component |
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