CN106825192A - A kind of electromagnetism Deep forming device and method - Google Patents
A kind of electromagnetism Deep forming device and method Download PDFInfo
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- CN106825192A CN106825192A CN201710129683.4A CN201710129683A CN106825192A CN 106825192 A CN106825192 A CN 106825192A CN 201710129683 A CN201710129683 A CN 201710129683A CN 106825192 A CN106825192 A CN 106825192A
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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
- B21D26/14—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces applying magnetic forces
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Abstract
The invention discloses a kind of electromagnetism Deep forming device and method, the device includes driving coil, fixed cell, forming punch, boosting coil, flanging unit and shaping dies, by to injected in boosting coil the second pulse current produce the second alternating magnetic field, second alternating electromagnetic field produces boosting pulse-electromagnetic force in plate to be formed, the boosting pulse electromagnetic axial force decomposed by boosting pulse-electromagnetic force is used for as plate to be formed provides pressure-pad-force, material in plate to be formed is contributed to be flowed in shaping dies from the boosting pulse electromagnetic radial load that boosting pulse-electromagnetic force is decomposed.During the second pulse current, by to injected in driving coil the first pulse current produce the first alternating magnetic field, first alternating magnetic field inductive loop in forming punch, forming punch is driven to move downward, act on plate to be formed, now the mobility of plate to be formed is high, it is possible to increase forming property, acting on plate to be formed by forming punch shapes it, it is possible to increase pad pasting performance.
Description
Technical field
The invention belongs to metal forming manufacture field, more particularly, to a kind of electromagnetism Deep forming device and method.
Background technology
The requirement of energy-conservation and environmental protection promotes the high-strength light alloy material that aluminium alloy is representative formerly to enter manufacture field to obtain
To extensive use.But conventional forming techniques run into major obstacles, major embodiment in high-strength light alloy material processed and applied
For alloy in lightweight plasticity is poor, difficult shaping, a kind of new forming technique is needed badly.Research shows, when two-forty shapes, the shaping of material
Performance is significantly improved.Electro-magnetic forming is the Rapid Manufacturing Technology that a kind of utilization Lorentz force shapes metal material, is belonged to
Two-forty shapes, and can be greatly enhanced the forming property of material.But when deep-draw type component forming is carried out, on the one hand, itself and biography
System quasistatic shaping faces the easily thinning problem of workpiece, on the other hand, for complex part, work under electromagnetic forming technique
The patch mould of part has to be hoisted.
The content of the invention
To solve, traditional quasistatic shaping alloy in lightweight plasticity is poor, easily tear, and pastes that mould is poor, technological requirement is high asks
Topic, the present invention proposes a kind of electromagnetism Deep forming that can be taken into account lifting material drawing forming limit and improve plate forming accuracy
Device and method.
To achieve the above object, as an aspect of of the present present invention, the invention provides a kind of electromagnetism Deep forming device, bag
Include：
Driving coil, for producing the first variation magnetic field when the first pulse current is passed through；
Fixed cell, positioned at driving coil top, for Constraints driven coil；
Forming punch, positioned at driving coil lower section, for being moved downward when by axial pulse-electromagnetic force, and by with
Be transferred to axial pulse-electromagnetic force on plate to be formed by plate directly contact to be formed；Axial pulse-electromagnetic force is become by first
Produced behind magnetizing field and the first eddy current effect, the first vortex is produced by the first variation magnetic field；
Boosting coil, positioned at the top of plate flange region to be formed, for producing when the second pulse current is passed through
Two variation magnetic fields；Second variation magnetic field produces second eddy current on plate to be formed, is made by the second variation magnetic field and second eddy current
It is used to promote plate flange region material to be formed with boosting pulse-electromagnetic force, boosting pulse-electromagnetic force is produced on plate to be formed
Expect to be flowed to the inside cavity of shaping dies, and for plate flange region to be formed provides pressure-pad-force；
Flanging unit, positioned at boosting coil top, for constraining boosting coil；
Shaping dies, positioned at plate lower surface to be formed, is provided with cavity, is made by cavity and forming punch cooperation to be formed
Plate is machined to required shape；
And first pulse current width be less than the second pulse current width, the first pulse current triggering moment is later than the second arteries and veins
Rush the current trigger moment.
The electromagnetism Deep forming device that the present invention is provided, the first variation magnetic field produced by driving coil drives forming punch
Quick motion, forming punch clashes into metal sheet shaping, the forming speed of workpiece is improved, because the first pulse current width is less than
Second pulse current width, the first pulse current triggering moment is later than the second pulse current triggering moment, in each axial arteries and veins
During rushing electromagnetic force driving forming punch shock plate shaping to be formed, all exist in the flange region of plate to be formed and help
Pulse-electromagnetic force is pushed away, promotes material flowability, effectively reduced plate to be formed and caused because material is thinning in forming process
Plate tear to be formed.Clash into plate to be formed by forming punch simultaneously to shape, the pad pasting that can be protected in forming process.Cause
This, the electromagnetism Deep forming device that the present invention is provided can take into account lifting material drawing forming limit and improve plate forming accuracy.
Preferably, forming punch includes：
Driving plate, positioned at driving coil lower section, for inducing the first vortex after by the first variation magnetic field, first becomes
Magnetizing field produces axial pulse-electromagnetic force with the first eddy current effect, orders about driving plate by axial pulse-electromagnetic force and moves downward；With
And
Hollow punch, is fixedly connected with driving plate, is moved downward jointly with driving plate, for and by with plate to be formed
Be transferred to axial pulse-electromagnetic force on plate to be formed by directly contact.
Forming punch uses hollow-core construction, in the case where ensureing that drift profile is constant, mitigates the quality of drift, improves into
The speed that shape drift is moved downward, improves the forming property of plate to be formed.
Preferably, the external diameter of boosting coil more than plate to be formed diameter, and boost line circuit covering plate to be formed
Flange region.
Preferably, boosting coil includes multiple boosting subcoils, and each boosting subcoil is loop configuration, multiple boosting
Coil nesting arrangement successively, and positioned at the top of plate flange region to be formed, and when plate member edge to be formed is marched to arbitrarily
During one boosting subcoil, the boosting subcoil is passed through pulse current.
Preferably, shaping dies bottom is provided with steam vent, the pressure for balancing plate upper surface to be formed and lower surface.
Preferably, shaping dies is provided with boss, for allow boosting coil not with plate directly contact to be formed.
As one aspect of the present invention, the invention provides a kind of electromagnetism Deep forming method, comprise the following steps：
(1) boosting pulse-electromagnetic force, boosting pulse-electromagnetic force are produced in plate flange region to be formed by electromagnetic induction
Material for accelerating plate flange region to be formed flows to the inside cavity of shaping dies, and for plate to be formed provides pressure
Bian Li；
(2) in each boosting pulse-electromagnetic force duration, applied with plate directly contact to be formed by forming punch
Axial pulse-electromagnetic force processes plate to be formed on plate to be formed by coordinating between forming punch and shaping dies
Into required shape.
Further, comprise the following steps：
When each boosting impulsive force reaches peak value, axial arteries and veins is applied by forming punch and plate directly contact to be formed
Electromagnetic force is rushed on plate to be formed.
The present invention has the advantages that：
1st, using pulse-electromagnetic force drive forming punch, make forming punch sharp downward movement, by with plate to be formed
Directly contact transmits pulse-electromagnetic force, effectively raises the shaping rate of plate, while driving lightweight with pulse-electromagnetic force
Drift produces pulse-electromagnetic force during shaping by boosting coil, promotes material to be flowed to mould inside, can allow shaping
Part has material to fill, the forming limit for comparing, significantly improving material stamping with traditional quasistatic.Meanwhile, utilize
Forming punch carries out high speed stamping with shaping dies, compared with existing electromagnetic forming technique, can significantly improve patch mould, improves
Electromagnetic energy rate, effective reduction workpiece resilience, improve forming accuracy.
2nd, pressure is provided above driving coil by fixed cell, it is ensured that in the first power subsystem discharge process, treat into
Shape plate is deformed during to bottom offset, will not vibrate device because of forming punch striking work, so as to cause flanging list
Unit falls and causes damage equipment.
3rd, diameter of the external diameter of boosting coil more than workpiece to be formed, it is ensured that boosting coil treats forming panels flange
The overall trend of domain radial forces is the inside cavity to shaping dies, while boost line circuit covering flange region, Ke Yiwei
Whole plate flange region to be formed provides uniform boosting pulse electromagnetic radial load.
4th, pressure between plate to be formed and shaping dies in steam vent control forming process, makes the plate to be formed will not be because
Cause the deformation of plate for upper surface and lower surface pressure are excessive.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description：
The structural representation of the first embodiment of the electromagnetism Deep forming device that Fig. 1 is provided for the present invention；
Boosting coil is being treated into first embodiment, second embodiment and 3rd embodiment that Fig. 2 is provided for the present invention
The flange region of shape plate produces the schematic diagram of second eddy current and pulse-electromagnetic force；
Boosting coil discharge electricity in first embodiment, second embodiment and 3rd embodiment that Fig. 3 is provided for the present invention
The time diagram of discharge current in stream and driving coil；
The structural representation of the second embodiment of the electromagnetism Deep forming device that Fig. 4 is provided for the present invention；
The line of multiple boosting subcoils is illustrated in the second embodiment of the electromagnetism Deep forming device that Fig. 5 is provided for the present invention
Figure；
The work of multiple boosting subcoils is illustrated in the second embodiment of the electromagnetism Deep forming device that Fig. 6 is provided for the present invention
Figure, wherein, (a) is outermost layer coil operating diagram, and (b) is time outer coil operating diagram, and (c) is intermediate layer coil work
Make schematic diagram, (d) innermost layer coil working schematic diagram；
The structural representation of the 3rd embodiment of the electromagnetism Deep forming device that Fig. 7 is provided for the present invention；
Each several part label declaration in figure：1：Driving coil, 2：Forming punch, 2-1：Driving plate, 2-2：Hollow punch, 3：Gu
Order unit, 4：Flanging unit, 5：Boosting coil, 6：Plate to be formed, 7：Shaping dies, 8：Steam vent, 9：Power subsystem, 10-
1：Second pulse current, 10-2：Second eddy current direction, 11-1：Boosting pulse radial electromagnetic force, 11-2：Boosting pulse is axially electric
Magnetic force, 12-1：Second pulse current waveform, 12-2：First pulse current waveform.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the present invention, not
For limiting the present invention.As long as additionally, technical characteristic involved in invention described below each implementation method that
Conflict is not constituted between this can be just mutually combined.
It is corresponding attached in some implementation methods to ensure the uniformity of the label of each part in three kinds of following implementation methods
In figure, be present continuous situation in its label, illustrate hereby.
1st, first embodiment
The first embodiment of the electromagnetism Deep forming device that Fig. 1 is provided for the present invention.The device include driving coil 1, into
Shape drift 2, fixed cell 3, flanging unit 4, boosting coil 5, shaping dies 7, power subsystem 9.
Power subsystem 9 includes that driving coil power supply 9-2 and boosting coil power 9-1, driving coil power supply 9-2 are drives line
Circle 1 provides pulse voltage, and driving coil power supply 9-1 is that boosting coil 5 provides pulse voltage.Driving coil 1 is used to produce first
Alternating magnetic field, forming punch 2 is located at the lower section of driving coil 1, and the first whirlpool is produced on forming punch 2 by the first alternating magnetic field
Stream, the first vortex and the first action of alternating magnetic field, produce axial pulse-electromagnetic force on forming punch 2, drive forming punch to
Lower motion.Boosting coil 5 is located at the top of plate flange region to be formed, and flanging unit 4 is located at the top of boosting coil 5, into
Shape mould 7 be located at plate to be formed lower section, boosting coil 5 power supply 9-1 discharge in the case of, by the second pulse current.Such as
Shown in Fig. 2, second eddy current 10-2 is induced on plate to be formed by the second pulse current, in the second eddy current and boosting coil
The sense of current is conversely, then produce the boosting pulse-electromagnetic force away from boosting coil 5, the boosting pulse-electromagnetic force can decompose again
It is boosting pulse electromagnetic radial load 11-1 and boosting pulse electromagnetic axial force 11-2.Boosting pulse electromagnetic radial load 11-1 is used to make
The metal material of plate flange region to be formed flows in the cavity of shaping dies；Boosting pulse electromagnetic axial force and flanging list
Unit 4 is jointly for plate flange region to be formed provides pressure-pad-force.Prevent plate to be formed from being tilted during shaping, influence
Forming accuracy.Now, flanging unit 4 plays and boosting coil 5 is fixed on concave die 7, prevents reaction force from causing boosting
Coil 5 is moved.
Because the pulse-electromagnetic force that boosting coil is produced on plate to be processed always deviates from boosting coil, when boosting coil
External diameter more than workpiece to be formed diameter, ensure that the boosting pulsed radial force on plate to be processed always towards finishing die
Tool inside cavity flowing, when forming punch clashes into plate to be formed every time, the material of plate to be formed can in time flow into material
The region of material weakened region, the forming property of raising material, and the flange region of boost line circuit covering workpiece to be formed, Neng Goubao
Card can provide uniform boosting pulse electromagnetic footpath in plate forming process to be formed for whole plate flange region to be formed
Xiang Li.
The present invention provide electromagnetism Deep forming device also include fixed cell 3, fixed cell 3 include upper mounted plate, under
Fixed plate and fixing bolt, upper mounted plate are located at the top of driving coil, and bottom plate is located at the lower section of shaping dies, upper fixation
Plate and bottom plate are connected by fixing bolt, and fixed cell is used for Constraints driven coil, the axial arteries and veins being subject to driving coil
Rush electromagnetic force equilibrium.Fixed cell can be hydraulic press.
Steam vent 8 is provided with above-mentioned shaping dies bottom, it is ensured that the pressure in forming process between workpiece and mould, no
The deformation of plate can be influenceed because of excessive.
Forming punch 2 includes that driving plate 2-1 and hollow drift 2-2, driving plate 2-1 are located at driving coil lower section, driving plate
2-1 is conductor, for example copper, and the driving alternating electromagnetic field produced by driving coil can produce the first vortex in driving plate 2-1,
Axial pulse-electromagnetic force is produced by the first vortex and the first alternating magnetic field, driving plate 2-1 is ordered about and is moved downward, hollow drift with drive
Dynamic plate 2-1 connections, drive hollow drift to move by driving plate 2-1, and hollow drift is directly contacted with plate to be formed, by pulse electricity
Magnetic force is transferred on plate to be formed.In the case that the forming punch 2 of the structure can ensure that drift size and shape is constant, subtract
The weight of light forming punch, improves the speed of forming punch, is conducive to improving forming property.
Driving coil power supply 9-2 can use identical structure with boosting coil power 9-1, i.e., including discharge capacity and electricity
Resistance, discharge capacity is discharged by resistance with driving coil or by the loop that resistance and boost line circle are formed, and produces pulse current.
As shown in figure 3, forming punch 2 is mainly plate to be formed 6 provides axial impulsive force, its driving force comes from driving
Coil power 9-2 discharges driving coil, when the second pulse current 12-1 in boosting coil 5 reaches peak value soon
Carve, now the material flowability energy highest of plate to be processed, driving coil 1 is by the first pulse current 12-2, first pulse
Electric current produces reverse first to be vortexed in the driving plate of forming punch, and then produces away from driving coil, the arteries and veins of intensity maximum
Electromagnetic force is rushed, drives forming punch to clash into metal sheet shaping, effectively reduce the thinning of material, lifting material drawing and forming pole
Limit.Power subsystem provides the electric discharge of sequential, energy-controllable for driving coil and boosting coil, due to the pulse of the first pulse current
Width is less than the pulse width of the second pulse current, when the triggering moment of the first pulse current is located at the peak value of the second pulse current
Carve, it is ensured that the material flowability of plate to be formed is good when each plate to be formed is by axial pulse-electromagnetic force.By helping
The structure and spatial distribution of push away line circle 5 and driving coil 1, the discharge energy and electric discharge temporal regulation of power supply, it is possible to realize punching
The cooperation of axial pulse-electromagnetic force and boosting pulse-electromagnetic force during pressing formation, and then realize stamping middle material flowing
Control, improves limit Forming depth.
2nd, second embodiment
As shown in figure 4, boosting in the structure of boosting coil 5 and first embodiment in the second embodiment that provides of the present invention
The structure of coil 5 is different, and other structures are identical with first embodiment, and boosting coil 5 is located at plate flange to be formed by multiple
The boosting subcoil in region is constituted.Boosting subcoil structure in a ring, multiple boosting subcoils nested arrangement successively.
Fig. 5 is the connected mode of multiple boosting subcoils and second source unit, and each boosting subcoil one end connects
Drawn by a copper bar afterwards and form contact, the contact is connected with second source unit 9-1 one end, the other end of each boosting subcoil
Each one copper bar of connection is individually drawn and forms contact, and multiple contacts are another with boosting subcoil power subsystem 9-1 by switching
One end connects.
Fig. 6 is the power-up sequence figure of each boosting subcoil in boosting coil during plate addition shape to be formed；When initial,
Fig. 6 (a), plate flange region outward flange to be formed is located at the zone of action of outermost layer boosting subcoil in boosting coil, passes through
After one or many electric discharge, plate flange region outward flange to be formed enters time outer layer and helps away from outermost layer boosting subcoil
The zone of action of hairclipper coil.By adjusting the circuit of power subsystem discharge end, triggering time outer layer boosting subcoil continues to treating
Forming panels flange region edge provides electromagnetic force and carries out boosting, shown in such as Fig. 6 (b).Repeat said process, such as Fig. 6 (c) and such as
Fig. 6 (d), with forming process, plate flange region edge to be formed is constantly moved to center, correspondingly changes second source
The state of unit breaker in middle, until whole shaping terminates.
Boosting subcoil in boosting coil 5 is inwardly uniformly distributed by the edge of plate to be formed, and by controlling boosting
Subcoil is passed through sequence of currents so that plate to be formed produces boosting electromagnetic force during Deep forming in flange region
Boosting subcoil will all the time concentrate on the edge of plate to be formed, can effectively lift the efficiency for pushing material.
Each boosting subcoil in connecting boosting coil by way of parallel connection, by selecting particular contact, realizes helping
The control of the electromagnetic force field distribution of sheet material flowing to be processed is pushed away, that is, realizes the control of boosting electromagnetic force, only use a set of power supply
The whole boosting process during Deep forming is achieved that, equipment requirement and installation difficulty are greatly reduced.Meanwhile, whole system
At most only need to two independent power supplys and achieve that to be that boosting coil and driving coil are powered, reduce coil discharge sequential and match somebody with somebody
The difficulty of conjunction, improves the reliability of whole forming process.
3rd, the 3rd implementation method
As shown in fig. 7, being shaped in the structure of shaping dies 7 and first embodiment in the 3rd implementation method of present invention offer
The structure of mould 7 is different, and other structures are identical with first embodiment.
The surface of shaping dies 7 is provided with boss, and the height of the boss ensure that boosting coil 5 is placed on shaping dies 7
When, the upper surface of plate to be formed 6 can not be contacted.During Deep forming, because boosting coil is straight with plate to be formed
Contact, when the material of plate to be formed in the cavity of shaping dies to flowing, material and the boosting coil of plate to be formed are sent out
Raw displacement, produces powerful frictional force between the two, causes workpiece surface scratch occur and be damaged.Set by shaping dies
Boss is put, realizes, in the case where being not directly contacted with, for plate provides pressure-pad-force, disclosure satisfy that some have surface flatness
It is required that Forming Workpiece processing.
Used as the electromagnetism Deep forming method that another aspect of the present invention, the present invention are provided, its specific implementation method includes：
S1：Plate to be formed 6 is placed between shaping dies 7 and boosting coil 5, and is compressed with flanging block 4；
S2：Forming punch 2 is placed in the top of plate to be formed 6；
S3：Driving coil 1 is placed on forming punch 2, and is compressed with fixed cell 3；
Step 4：Second source unit 9-1 is discharged boosting coil 5, and boosting pulse electromagnetic is produced on plate to be formed
Power, boosting pulse-electromagnetic force can be decomposed into boosting pulse electromagnetic radial load and boosting pulse electromagnetic axial force, boosting pulse electricity
Magnetic radial load pushes metal sheet material and is flowed to the inside cavity of shaping dies, and boosting pulse electromagnetic axial force is used for treat into
Shape plate provides pressure-pad-force；
Step 5：After the triggering of the second pulse current, the first power subsystem 9-2 discharges driving coil 1, produces the first arteries and veins
Electric current is rushed, the first pulse current produces the first alternating magnetic field on forming punch, produce powerful axial pulse-electromagnetic force to drive
Forming punch clashes into metal sheet shaping, and it is wide to ensure that the electricity width of the pulse in boosting coil rushes electric current more than boosting coil middle arteries
Degree, can make the mobile performance of material in each forming process of plate to be formed high；Preferred pulse electric current is electric close to peak value moment
Source control system 9-2 discharges driving coil 1, and now material flowability is maximum in plate to be formed, and forming property is optimal.
Step 6：Repeat step three, four, five, until completing the Deep forming of plate to be formed.
As it will be easily appreciated by one skilled in the art that the foregoing is only presently preferred embodiments of the present invention, it is not used to
The limitation present invention, all any modification, equivalent and improvement made within the spirit and principles in the present invention etc., all should include
Within protection scope of the present invention.
Claims (8)
1. a kind of electromagnetism Deep forming device, it is characterised in that including：
Driving coil (1), for producing the first variation magnetic field when the first pulse current is passed through；
Fixed cell (3), positioned at the driving coil (1) top, for constraining the driving coil (1)；
Forming punch (2), positioned at the driving coil (1) lower section, for being moved downward when by axial pulse-electromagnetic force, and
Axial pulse-electromagnetic force is transferred on plate to be formed by with plate directly contact to be formed；The axial pulse-electromagnetic force
It is to be produced by behind the first variation magnetic field and the first eddy current effect, first vortex is produced by the first variation magnetic field；
Boosting coil (5), positioned at the top of plate flange region to be formed, for producing second when the second pulse current is passed through
Variation magnetic field；Second variation magnetic field produces second eddy current on plate to be formed, by the second variation magnetic field and second eddy current
Generation boosting pulse-electromagnetic force on plate to be formed is acted on, the boosting pulse-electromagnetic force is used to promote plate flange to be formed
Region material flows to the inside cavity of shaping dies (7), and for plate flange region to be formed provides pressure-pad-force；
Flanging unit (4), positioned at the boosting coil (5) top, for constraining the boosting coil (5)；
Shaping dies (7), positioned at plate lower surface to be formed, is provided with cavity, is made by cavity and forming punch cooperation to be formed
Plate is machined to required shape；
And first pulse current width be less than the second pulse current width, the first pulse current triggering moment be later than the second pulse electricity
Stream triggering moment.
2. electromagnetism Deep forming device according to claim 1, it is characterised in that the forming punch includes：
Driving plate (2-1), positioned at driving coil lower section, for inducing the first vortex after by the first variation magnetic field,
First variation magnetic field produces axial pulse-electromagnetic force with the first eddy current effect, and the driving is ordered about by axial pulse-electromagnetic force
Plate (2-1) is moved downward；And
Hollow punch (2-2), is fixedly connected with the driving plate (2-1), is moved downward jointly with driving plate, for by with treat
Be transferred to axial pulse-electromagnetic force on the plate to be formed (6) by forming panels directly contact.
3. electromagnetism Deep forming device according to claim 1, it is characterised in that the external diameter of the boosting coil (5) is more than
The diameter of the plate to be formed (6), and the boosting coil (5) covers the plate flange region to be formed.
4. electromagnetism Deep forming device according to claim 1, it is characterised in that the boosting coil includes multiple boostings
Coil, each boosting subcoil is loop configuration；Multiple boosting subcoils nesting arrangement successively, and positioned at plate flange to be formed
The top in region；And when plate member edge to be formed marches to any one boosting subcoil, the boosting subcoil is passed through pulse
Electric current.
5. electromagnetism Deep forming device according to claim 1, it is characterised in that the cavity bottom of the shaping dies is provided with
Steam vent, the pressure for balancing plate upper surface to be formed and lower surface.
6. electromagnetism Deep forming device according to claim 1, it is characterised in that the shaping dies is provided with boss, uses
In allow the boosting coil (5) not with plate (6) directly contact to be formed.
7. a kind of electromagnetism Deep forming method of electromagnetism Deep forming device as claimed in claim 1, it is characterised in that including as follows
Step：
(1) boosting pulse-electromagnetic force, the boosting pulse-electromagnetic force are produced in plate flange region to be formed by electromagnetic induction
Material for accelerating plate flange region to be formed flows to the inside cavity of shaping dies, and for plate to be formed provides pressure
Bian Li；
(2) in each boosting pulse-electromagnetic force duration, applied axially with plate directly contact to be formed by forming punch
Pulse-electromagnetic force makes plate to be formed be processed into institute on plate to be formed by coordinating between forming punch and shaping dies
Need shape.
8. electromagnetism Deep forming method as claimed in claim 7, it is characterised in that in the step (2), when each boosting pulse
When electromagnetic force reaches peak value, axial pulse-electromagnetic force is applied in plate to be formed by forming punch and plate directly contact to be formed
On part.
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| CN113714376A (en) * | 2021-09-03 | 2021-11-30 | 北京理工大学深圳汽车研究院(电动车辆国家工程实验室深圳研究院) | Cylindrical part forming device and forming method |
| CN115041571A (en) * | 2022-06-20 | 2022-09-13 | 武汉理工大学 | Cross-shaped high-speed tensile experimental device and experimental method |
| WO2022198768A1 (en) * | 2021-03-23 | 2022-09-29 | 华中科技大学 | Precise forming apparatus and method for miniature metal device |
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