CN109590371A - A kind of quasi-static punching press compound molding device of electromagnetism-electric detonation-of large-sized sheet material and method - Google Patents
A kind of quasi-static punching press compound molding device of electromagnetism-electric detonation-of large-sized sheet material and method Download PDFInfo
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- CN109590371A CN109590371A CN201811571555.6A CN201811571555A CN109590371A CN 109590371 A CN109590371 A CN 109590371A CN 201811571555 A CN201811571555 A CN 201811571555A CN 109590371 A CN109590371 A CN 109590371A
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- plate
- electric detonation
- electromagnetism
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- punching press
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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
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/021—Deforming sheet bodies
- B21D26/031—Mould construction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- 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
Abstract
A kind of quasi-static punching press compound molding device of electromagnetism-electric detonation-of large-sized sheet material, including bottom plate, cavity plate, punch-pin, the punch-pin is located at the surface of cavity plate, cavity plate top is equipped with blank holder, it is equipped with radial side between blank holder and cavity plate and pushes away coil, the edge of plate to be formed is fixed on radial side and pushes away in coil, and the cricoid metal electric detonation element of several electric discharges that can explode is equipped in cavity plate, several metal electric detonation elements are connect along cavity plate concentric arrangement, metal electric detonation element with external power supply；When cavity plate upper end is completely covered in plate to be formed, power transmission medium is filled in cavity plate, bottom plate is equipped with the manhole appendix passed in and out for power transmission medium；The invention also includes a kind of quasi-static punching press combined shaping methods of electromagnetism-electric detonation-of large-sized sheet material.The present invention can improve the forming property of material, and the deformation uniformity of material is higher, it is not easy to wrinkle, and can realize the Flexible Manufacture of various sizes of heavy parts, wide adaptation range, cost is relatively low.
Description
Technical field
The present invention relates to the high-speed forming technique fields of Plastic working ", and in particular to a kind of electricity of large-sized sheet material
The quasi-static punching press compound molding device of magnetic-electric detonation-and method.
Background technique
Electromagnetic pulse forming is a kind of method for carrying out High-speed machining to metal works using pulse magnet field force.Study table
Bright: material generates under high speed impact and is different from the quasi-static deformational behavior of traditional diamond-making technique and a kind of dynamic behaviour occur,
I.e. material elastomeric deformable wave, plastic wave impact under there are the dynamic behaviors such as twin crystal, tissue inter-variable, Adiabatic Shear.
The forming limit of the difficult-to-deformation materials such as aluminium alloy, magnesium alloy and titanium alloy can thus be effectively improved, reduce rebound.
In patent " a kind of pull-shaped and Electromagnetic heating progressive molding method and device of large thin-wall element ", Li JianJun, Cui
Dawn brightness etc. proposes a kind of forming that heavy parts are realized using the alternating deformation of " pull-shaped and electromagnetism is progressive ".In document
“Large-scale sheet deformation process by electromagnetic incremental forming
In combined with stretch forming ", Cui Xiaohui etc. realizes height using " pull-shaped and electromagnetism is progressive " technique
The elliposoidal aluminum alloy part of 75mm, diameter about 600mm shape.But coil requires mobile multiple discharge, coil in each layer
Big deformation occurs for the plate of face, other regions are almost without deformation.This non-uniform increasing deformed with forming height
Add, the unhomogeneity of deformation aggravation of plate is finally easy to appear corrugation.
In order to solve homogeneous deformation of the heavy parts random layer under electromagnetic force, in a kind of patent " profile-followed deployment line
In the large piece electromagnetism progressive molding method and device of circle ", Cui Xiaohui etc. propose random layer be respectively provided with a whole coil with
Guarantee the homogeneous deformation of the laminate material.Section face after the section of the layer line circle and plate are pull-shaped is to improve electro-magnetic forming effect
Rate.It is discharged by several times by the profile-followed arrangement coil of multiple and different diameters, finally obtains the one-piece parts of a homogeneous deformation.But it is whole
In a deformation process, the coil of multiple and different diameters, different cross section is needed, the cost of manufacture of coil can be increased considerably.Work as needle
To different part forming shapes, the device of another set of profile-followed arrangement coil is generally required, adaptation range is narrow.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, provide a kind of electromagnetism-electricity of large-sized sheet material
Quick-fried-quasi-static punching press compound molding device and method, it can improve the forming property of material, and the deformation uniformity of material is higher,
Do not allow to crease easily, and can realize the Flexible Manufacture of various sizes of heavy parts, wide adaptation range, cost is relatively low.
In order to solve the above technical problems, technical solution proposed by the present invention are as follows: a kind of electromagnetism-electric detonation-standard of large-sized sheet material
Static punching press compound molding device, including bottom plate, cavity plate, punch-pin, the punch-pin are located at the surface of cavity plate, the cavity plate top
Radial side is equipped with equipped with blank holder, between blank holder and cavity plate and pushes away coil, and the edge of plate to be formed is fixed on radial side and pushes away line
In circle, die depth is greater than the height of punch-pin, and the metal electric detonation element of several electric discharges that can explode is equipped in the cavity plate, several
A metal electric detonation element is connect along cavity plate concentric arrangement, metal electric detonation element with external power supply；Plate to be formed covers completely
When lid cavity plate upper end, power transmission medium is filled in cavity plate, the bottom plate is equipped with the manhole appendix passed in and out for power transmission medium.
As a further improvement of the above technical scheme: the metal electric detonation element is metal tube, wire or metal foil
Any one of piece.
Further, the diameter of the metal tube or wire be 0.001~10mm, the sheet metal with a thickness of
0.001~10mm.
Further, the metal electric detonation element is arranged with multiple deformation process below plate to be formed several times or with one
Secondary deformation process is once provided with, and instantaneous high pressure is generated after the gasification of metal electric detonation element and drives plate to be formed at a high speed to convex
Mould Direction distortion is bonded plate to be formed completely with punch-pin under high pressure.
Further, the cavity plate upper bottom surface is equipped with groove A, is equipped with downside in groove A and pushes away coil；The blank holder bottom
Face is equipped with groove B, is equipped with upside in groove B and pushes away coil；The downside pushes away coil and upside pushes away coil and is symmetrical arranged, to be formed
The edge of plate is fixed on downside and pushes away coil and upside pushes away between coil.
Further, the power transmission medium is liquid or gas, and wherein liquid can make pure water, oil etc., and gas can be
Air etc..
Further, the shape of the metal electric detonation element is consistent with the shape of plate to be formed, when plate to be formed is ring
When shape structure, the structure of metal electric detonation element is also ring structure, when plate to be formed is laminated structure, metal electric detonation element
Structure be also laminated structure.
A kind of quasi-static punching press combined shaping method of electromagnetism-electric detonation-of large-sized sheet material, using the electricity of above-mentioned large-sized sheet material
The quasi-static punching press compound molding device of magnetic-electric detonation-, includes the following steps:
1) pre- pull-shaped: punch-pin is pushed, shaped sheet is treated and carries out the pre- pull-shaped of quasi-static punching press, it is pre- pull-shaped to be formed
The region to be deformed of plate is close to metal electric detonation element；
2) it electromagnetism-electric explosion forming: is powered to metal electric detonation element, metal electric detonation element is made to issue anger in the function of current
Change, generate powerful pressure to metal electric detonation component ambient and drive power transmission media expansion, power transmission medium further drives its periphery
Plate to be formed to punch-pin Direction distortion carry out electric explosion forming process；At the same time, radial side pushes away coil energization, makes to be formed
The material at plate flange position is flowed to plate center position to be formed carries out electromagnetism deformation process, with complexed metal electric detonation element
The rapid deformation that gasification promotes plate to be formed to occur；And plate and punch-pin to be formed are complete under the effect of the pressure of power transmission medium
Full fitting, is finally completed the deformation process of plate to be formed；
3) it is repeated in step 1) and 2), until plate to be formed is bonded with punch-pin completely.
As a further improvement of the above technical scheme: the electric explosion forming process in step 2) is once to be completed or divided
It is repeatedly completed layer/subregion.
Further, comprising being adjusted to the temperature of power transmission medium in step 2), the temperature of power transmission medium can from -200 DEG C to
Shaped sheet molten temperature region is arbitrarily adjusted.
Compared with the prior art, the advantages of the present invention are as follows:
1, apparatus and method of the present invention utilizes the radial side thrust of electromagnetic force, improves the thickness during part deformation
Degree is thinned；Using the quasi-static punching press of punch-pin, the deflection each time of part after electric discharge is reduced, and finally realizes that part leans on completely
Mould improves forming accuracy；Using the high-speed deformation characteristic of electric detonation, the forming property of part is improved, and due to materials such as wires
Material is convenient for production, reduces the difficulty of forming technology；
2, the gasification of metal electric detonation element is formed by electric explosion forming in apparatus and method of the present invention, is a kind of high-rate forming
Method, can improve the forming property of material, and the radial force-fitting that electric explosion forming and electromagnetic coil generate may finally be mentioned significantly
The drawing height of high part；
3, coil is substituted using metal electric detonation element in apparatus and method of the present invention, can significantly reduces the production of coil
Cost, the coil of different-diameter, different cross section are substituted with the wire of different-diameter, different sizes, different the number of turns, and cost is several
It can be ignored the Flexible Manufacture, it can be achieved that various sizes of heavy parts, wide adaptation range, cost is relatively low；
4, in apparatus and method of the present invention by change power transmission medium temperature, it can be achieved that deep cooling forming, room temperature forming,
Warm working and hot forming etc., the power transmission medium temperature the low more is conducive to refine crystal grain, improves part service performance；Power transmission medium temperature
Resistance of deformation that is more high more advantageously reducing part is spent, the plastic deformation ability of part is improved.
Detailed description of the invention
Fig. 1 is the knot that the quasi-static punching press compound molding device of electromagnetism-electric detonation-is cut from middle part in the specific embodiment of the invention
Structure schematic diagram；
Fig. 2 is the forming original state of the quasi-static punching press combined shaping method of electromagnetism-electric detonation-in the specific embodiment of the invention
Structural schematic diagram.
Fig. 3 is that the punch-pin of the quasi-static punching press combined shaping method of electromagnetism-electric detonation-in the specific embodiment of the invention is drawn for the first time
Structural schematic diagram after type；
Fig. 4 is the metal electric detonation element of the quasi-static punching press combined shaping method of electromagnetism-electric detonation-in the specific embodiment of the invention
Structural schematic diagram after discharging for the first time；
Fig. 5 is that second of punch-pin of the quasi-static punching press combined shaping method of electromagnetism-electric detonation-in the specific embodiment of the invention is drawn
Structural schematic diagram after type；
Fig. 6 is the metal electric detonation element of the quasi-static punching press combined shaping method of electromagnetism-electric detonation-in the specific embodiment of the invention
Structural schematic diagram after second of electric discharge；
Fig. 7 is the change at the end of the quasi-static punching press combined shaping method of electromagnetism-electric detonation-is last in the specific embodiment of the invention
Shape result figure.
Marginal data:
1, bottom plate；11, manhole appendix；2, cavity plate；3, punch-pin；4, blank holder；5, radial side pushes away coil；51, upside pushes away coil；
52, downside pushes away coil；6, metal electric detonation element；7, power transmission medium；8, plate to be formed.
Specific embodiment
To facilitate the understanding of the present invention, the present invention is made below in conjunction with Figure of description and preferred embodiment more complete
Face meticulously describes, but the protection scope of the present invention is not limited to the following specific embodiments.
As shown in Figures 1 to 7, the quasi-static punching press compound molding device of electromagnetism-electric detonation-of a kind of large-sized sheet material, including bottom
Plate 1, cavity plate 2, punch-pin 3, punch-pin 3 are located at the surface of cavity plate 2, and 2 top of cavity plate is equipped with blank holder 4, blank holder 4 and cavity plate 2 it
Between be equipped with radial side push away coil 5, the edge of plate 8 to be formed is fixed on radial side and pushes away in coil 5,2 depth of cavity plate be greater than punch-pin 3
Height, the metal electric detonation element 6 of several electric discharges that can explode is equipped in cavity plate 2, several metal electric detonation elements 6 are along cavity plate 2
Concentric arrangement, metal electric detonation element 6 are connect with external power supply, and metal electric detonation element 6 can gasify after being powered；Plate to be formed
8 when being completely covered 2 upper end of cavity plate, and power transmission medium 7 is filled in cavity plate 2, and bottom plate 1 is equipped with the disengaging passed in and out for power transmission medium 7
Hole 11.
In the present embodiment, metal electric detonation element 6 is any one of metal tube, wire or sheet metal.
In the present embodiment, the diameter of metal tube or wire is 0.1mm, sheet metal with a thickness of 0.1mm.
In the present embodiment, metal electric detonation element 6 be arranged several times below plate 8 to be formed with multiple deformation process or with
One time deformation process is once provided with, and metal electric detonation element 6 generates instantaneous high pressure and drives 8 high speed of plate to be formed after gasifying
To 3 Direction distortion of punch-pin, it is bonded plate 8 to be formed completely with punch-pin 3 under high pressure.
In the present embodiment, 2 upper bottom surface of cavity plate is equipped with groove A, is equipped with downside in groove A and pushes away coil 52；Blank holder 4 is gone to the bottom
Face is equipped with groove B, is equipped with upside in groove B and pushes away coil 51；Downside pushes away coil 52 and upside pushes away coil 51 and is symmetrical arranged, at
The edge of shape plate 8 is fixed on downside and pushes away coil 52 and upside pushes away between coil 51.
In the present embodiment, power transmission medium 7 is pure water.
In the present embodiment, the shape of metal electric detonation element 6 is consistent with the shape of plate 8 to be formed, because in the present embodiment
Plate 8 to be formed is ring structure, so the structure for the metal electric detonation element 6 that the present embodiment uses also is ring structure.
A kind of quasi-static punching press combined shaping method of electromagnetism-electric detonation-of large-sized sheet material, using the electricity of above-mentioned large-sized sheet material
The quasi-static punching press compound molding device of magnetic-electric detonation-, includes the following steps:
1) pre- pull-shaped: punch-pin 3 is pushed, shaped sheet is treated and carries out the pre- pull-shaped of quasi-static punching press, it is pre- it is pull-shaped to at
The region to be deformed of shape plate 8 is close to metal electric detonation element 6；
2) it electromagnetism-electric explosion forming: is powered to metal electric detonation element 6, metal electric detonation element 6 is made to issue anger in the function of current
Change, generate powerful pressure to 6 surrounding of metal electric detonation element and power transmission medium 7 is driven to expand, power transmission medium 7 further drives its week
The plate to be formed 8 on side carries out electric explosion forming process to 3 Direction distortion of punch-pin；At the same time, radial side pushes away the energization of coil 5, makes
The material at 8 flange position of plate to be formed is flowed to 8 center position of plate to be formed carries out electromagnetism deformation process, with complexed metal
Electric detonation element 6, which gasifies, promotes the rapid deformation of the generation of plate 8 to be formed；And it is to be formed under the effect of the pressure of power transmission medium 7
Plate 8 is bonded completely with punch-pin 3, is finally completed the deformation process of plate 8 to be formed；
3) it is repeated in step 1) and 2), until plate 8 to be formed is bonded with punch-pin 3 completely.
In the present embodiment, electric explosion forming process in step 2) be once completed or be layered/subregion repeatedly carries out
It completes.
In the present embodiment, adjusted in step 2) comprising the temperature to power transmission medium 7, the temperature of power transmission medium 7 can be from -200
It DEG C is arbitrarily adjusted to 8 molten temperature region of plate to be formed.
Claims (10)
1. a kind of quasi-static punching press compound molding device of electromagnetism-electric detonation-of large-sized sheet material, including bottom plate (1), cavity plate (2), punch-pin
(3), the punch-pin (3) is located at the surface of cavity plate (2), and cavity plate (2) top is equipped with blank holder (4), blank holder (4) with it is recessed
It is equipped with radial side between mould (2) to push away coil (5), the edge of plate (8) to be formed is fixed on radial side and pushes away in coil (5), cavity plate
(2) depth is greater than the height of punch-pin (3), it is characterised in that: the metal electricity in the cavity plate (2) equipped with several electric discharges that can explode
Quick-fried element (6), several described metal electric detonation elements (6) are along cavity plate (2) concentric arrangement, metal electric detonation element (6) and external electricity
Source connection；When cavity plate (2) upper end is completely covered in plate (8) to be formed, power transmission medium (7), the bottom plate are filled in cavity plate (2)
(1) it is equipped with the manhole appendix (11) passed in and out for power transmission medium (7).
2. the quasi-static punching press compound molding device of electromagnetism-electric detonation-of large-sized sheet material according to claim 1, feature exist
In: the metal electric detonation element (6) is any one of metal tube, wire or sheet metal.
3. the quasi-static punching press compound molding device of electromagnetism-electric detonation-of large-sized sheet material according to claim 2, feature exist
In: the diameter of the metal tube or wire be 0.001~10mm, the sheet metal with a thickness of 0.001~10mm.
4. the quasi-static punching press compound molding device of electromagnetism-electric detonation-of large-sized sheet material according to claim 2, feature exist
In: the metal electric detonation element (6) is arranged with multiple deformation process below plate to be formed (8) several times or with primary deformation
Process is once provided with, and instantaneous high pressure is generated after metal electric detonation element (6) gasification and drives plate to be formed (8) at a high speed to convex
Mould (3) Direction distortion, is bonded plate to be formed (8) completely with punch-pin (3) under high pressure.
5. the quasi-static punching press compound molding device of electromagnetism-electric detonation-of large-sized sheet material according to claim 1, feature exist
In: cavity plate (2) upper bottom surface is equipped with groove A, is equipped with downside in groove A and pushes away coil (52)；Blank holder (4) bottom surface
It is equipped with groove B, upside is equipped in groove B and pushes away coil (51)；The downside pushes away coil (52) and upside pushes away coil (51) symmetrically
Setting, the edge of plate (8) to be formed are fixed on downside and push away coil (52) and upside pushes away between coil (51).
6. the quasi-static punching press of electromagnetism-electric detonation-of large-sized sheet material according to any one of claims 1-5 is combined into shape dress
It sets, it is characterised in that: the power transmission medium (7) is liquid or gas.
7. the quasi-static punching press of electromagnetism-electric detonation-of large-sized sheet material according to any one of claims 1-5 is combined into shape dress
It sets, it is characterised in that: the shape of the metal electric detonation element (6) is consistent with the shape of plate to be formed (8), when plate to be formed
(8) be ring structure when, the structure of metal electric detonation element (6) is also ring structure, when plate to be formed (8) be laminated structure
When, the structure of metal electric detonation element (6) is also laminated structure.
8. a kind of quasi-static punching press combined shaping method of electromagnetism-electric detonation-of large-sized sheet material, it is characterised in that: use claim
The quasi-static punching press compound molding device of electromagnetism-electric detonation-of large-sized sheet material described in any one of 1-7, includes the following steps:
1) pre- pull-shaped: punch-pin (3) are pushed, shaped sheet (8) is treated and carries out the pre- pull-shaped of quasi-static punching press, it is pre- it is pull-shaped to at
The region to be deformed of shape plate (8) is close to metal electric detonation element (6)；
2) it electromagnetism-electric explosion forming: is powered to metal electric detonation element (6), metal electric detonation element (6) is made to issue anger in the function of current
Change, generate powerful pressure to metal electric detonation element (6) surrounding and power transmission medium (7) is driven to expand, power transmission medium (7) further drives
The plate to be formed (8) for moving its periphery carries out electric explosion forming process to punch-pin (3) Direction distortion；At the same time, radial side pushes away line
It encloses (5) to be powered, flows the material at plate to be formed (8) flange position to plate to be formed (8) center position and carry out electromagnetism change
Shape process, the rapid deformation for promoting plate to be formed (8) to occur with complexed metal electric detonation element (6) gasification；And it is situated between in power transmission
Plate (8) to be formed is bonded completely with punch-pin (3) under the pressure effect of matter (7), is finally completed the deformation of plate to be formed (8)
Journey；
3) it is repeated in step 1) and 2), until plate to be formed (8) are bonded with punch-pin (3) completely.
9. the quasi-static punching press combined shaping method of electromagnetism-electric detonation-of large-sized sheet material according to claim 8, feature exist
In: electric explosion forming process in step 2) be once completed or be layered/subregion repeatedly completed.
10. the quasi-static punching press combined shaping method of electromagnetism-electric detonation-of large-sized sheet material according to claim 8 or claim 9, special
Sign is: comprising being adjusted to the temperature of power transmission medium (7) in step 2), the temperature of power transmission medium (7) can from -200 DEG C to at
Shape plate (8) molten temperature region is arbitrarily adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811571555.6A CN109590371B (en) | 2018-12-21 | 2018-12-21 | Electromagnetic-electric explosion-quasi-static stamping composite forming device and method for large-scale plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811571555.6A CN109590371B (en) | 2018-12-21 | 2018-12-21 | Electromagnetic-electric explosion-quasi-static stamping composite forming device and method for large-scale plate |
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| Publication Number | Publication Date |
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| CN109590371A true CN109590371A (en) | 2019-04-09 |
| CN109590371B CN109590371B (en) | 2020-04-24 |
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| CN201811571555.6A Active CN109590371B (en) | 2018-12-21 | 2018-12-21 | Electromagnetic-electric explosion-quasi-static stamping composite forming device and method for large-scale plate |
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| CN111633103A (en) * | 2020-05-25 | 2020-09-08 | 华中科技大学 | Electro-hydraulic-electromagnetic composite forming system and forming method |
| CN111922175A (en) * | 2020-08-24 | 2020-11-13 | 华中科技大学 | Electro-hydraulic explosion forming device and method |
| CN111957809A (en) * | 2020-08-13 | 2020-11-20 | 中南大学 | Electromagnetic forming method and device for improving forming performance and precision of material difficult to deform |
| CN115582450A (en) * | 2022-10-12 | 2023-01-10 | 盐城工学院 | Flexible edge pressing structure for plate forming and regulation and control method |
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| CN115582450A (en) * | 2022-10-12 | 2023-01-10 | 盐城工学院 | Flexible edge pressing structure for plate forming and regulation and control method |
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