CN103978087A - Device and method for light alloy material magnetic pulse driven solid elastic medium pressure forming - Google Patents

Device and method for light alloy material magnetic pulse driven solid elastic medium pressure forming Download PDF

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Publication number
CN103978087A
CN103978087A CN201410242521.8A CN201410242521A CN103978087A CN 103978087 A CN103978087 A CN 103978087A CN 201410242521 A CN201410242521 A CN 201410242521A CN 103978087 A CN103978087 A CN 103978087A
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China
Prior art keywords
solid elastic
light alloy
plate
board
die
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Pending
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CN201410242521.8A
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Chinese (zh)
Inventor
徐俊瑞
林启权
崔俊佳
苏继爱
赵文娟
肖良红
刘洋
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Xiangtan University
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Xiangtan University
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Priority to CN201410242521.8A priority Critical patent/CN103978087A/en
Publication of CN103978087A publication Critical patent/CN103978087A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a device and method for light alloy material magnetic pulse driven solid elastic medium pressure forming. According to the device for light alloy material magnetic pulse driven solid elastic medium pressure forming, an upper pressing board and a lower fixing board are oppositely arranged and connected through bolts. A slab spiral coil is arranged on the lower side face of the upper pressing board. A copper driver board is arranged on the slab spiral coil. A cushion block is arranged on the upper side face of the lower fixing board. The device and method have the following technical advantages that firstly, the magnetic pulse forming technology and the solid elastic medium pressure forming technology are combined, the advantages of the two technologies are fully used, the forming performance of materials is improved, parts with good quality can be similarly formed by the materials with relatively poor forming performance at the indoor temperature, production cost is saved, the used method is simple, and operation is easy; secondly, the defects that only expanding deformation is generated through the magnetic pulse forming technology and a board collides with a mold, then rebounds and can not be attached to the mold in the magnetic pulse forming technology are overcome, drawing deformation can be achieved through the magnetic pulse high-speed forming technology, and a cylindrical part, a box part, a complex surface part and the like can be formed.

Description

A kind of light alloy material magnetic field impulse drives solid elastic dielectrics pressure former and manufacturing process thereof
Technical field
The invention belongs to part forming and manufacture field, be specifically related to a kind of light alloy material magnetic field impulse and drive solid elastic dielectrics pressure former and manufacturing process.
Background technology
Magnetic pulse formation is a kind of two-forty forming technique, can significantly improve the forming property of material.It is to utilize magnetic field force, instead of utilizes mechanical force to realize the processing to metal, has the features such as unlubricated, machinery-free contact, rapid processing, mould simple (single mode shaping).In magnetic pulse formation process, because shaping rate is very fast, there is strong collision in the normal and mould of sheet material, causes sheet material resilience, forms obvious depression at material surface, cannot paste mould.And magnetic pulse formation technique conventionally makes material production bulging in shaping, cannot realize the shaping of drawing parts.Solid elastic dielectrics pressure forming utilize solid elastic dielectrics to replace punch or the die in traditional Sheet Metal Forming Technology, makes sheet material generation plastic deformation using solid elastic dielectrics as power transmission medium.Solid elastic dielectrics pressure forming process have make metal sheet forming more flexibly, higher and surperficial good, the forming property that improves sheet material of die wear precision less, formation of parts, the advantage such as cost-saving.Both advantages will be conducive to make full use of in conjunction with magnetic pulse formation and solid elastic dielectrics pressure forming, not only embodied the feature that two-forty is shaped but also brought into play the pressure-formed characteristic of solid elastic dielectrics, thereby the high strain rate of realizing drawing part, box part and Complex Surface Part is shaped.
Summary of the invention
The high strain rate that the object of the invention is drawing part, box part and Complex Surface Part in order to realize light alloy material is shaped, and the present invention proposes a kind of magnetic field impulse and drives solid elastic dielectrics pressure former and manufacturing process thereof.
Technical scheme of the present invention is that a kind of light alloy material magnetic field impulse drives solid elastic dielectrics pressure former, top board, bottom plate is just to arranging, be bolted, at top board downside, dull and stereotyped spiral winding be housed, copper drive plate is housed on dull and stereotyped spiral winding; Upper side at bottom plate is equipped with cushion block.
A kind of light alloy material magnetic field impulse drives solid elastic dielectrics pressure forming method, and described method comprises the steps:
(1) die is positioned over to cushion block;
(2) sheet material to be formed light-alloy is placed on die;
(3) solid elastic dielectrics punch is connected with sheet material to be formed and contacts with copper drive plate;
(4) adjust bolt, by top board and bottom plate, whole building mortion is fixed;
(5) close discharge switch K, capacitor C starts electric discharge, the electric current changing in dull and stereotyped spiral winding, and copper drive plate produces induced-current, and the effect that copper drive plate is subject to electromagnetic force produces high-speed motion; Solid elastic dielectrics punch is the same high-speed motion that occurs under the driving of copper drive plate, and the plastic deformation of two-forty occurs breadth light alloy plate under the effect of solid elastic dielectrics punch, makes breadth light alloy plate and punch paste contour forming.
On die, by flanging bolt, blank holder is housed, sheet material to be formed is placed on die (11) by blank holder.
The present invention has following technique effect, (1) the present invention is combined magnetic pulse formation with solid elastic dielectrics pressure forming process, make full use of the advantage of two kinds of techniques, improve the one-tenth performance of material, for the poor material of forming property under the room temperature the second best in quality part that can be shaped equally, save production cost, and method therefor is simple, easy operating; (2) the present invention has overcome magnetic pulse formation and can only produce the defect that in bulging distortion and magnetic pulse formation, after sheet material and mould collision, the serious resilience of generation cannot be pasted mould, by the invention enables magnetic field impulse two-forty forming technology can carry out deep-drawing deformation, shaping cylindrical member, box part and complex curved surface parts etc.
Brief description of the drawings
Fig. 1 the present invention is that breadth light alloy plate magnetic field impulse drives solid elastic dielectrics pressure to become the schematic diagram of complex curved surface parts.
Fig. 2 the present invention is that breadth light alloy plate magnetic field impulse drives solid elastic dielectrics pressure to become the schematic diagram of box part.
Fig. 3 the present invention is that breadth light alloy plate magnetic field impulse drives solid elastic dielectrics pressure to become the schematic diagram of cylindrical member.
The dull and stereotyped spiral winding circuit diagram of Fig. 4 the present invention.
In figure: 1-bolt, 2-nut, 3-pad, the upper fixation clip of 4-, the dull and stereotyped spiral winding of 5-, 6-copper drive plate, 7-solid elastic dielectrics punch, 8-bolt, 9-blank holder, 10-sheet material, 11-die, 12-cushion block, fixes flanging under 13-, 14-steam vent.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
As Figure 1 and Figure 4, a kind of light alloy material magnetic field impulse drives solid elastic dielectrics pressure former, top board 4, bottom plate 13 is just to arranging, connect by bolt 1, at top board 4 downsides, dull and stereotyped spiral winding 5 is housed, on dull and stereotyped spiral winding 5, copper drive plate 6 is housed; At the upper side of bottom plate 13, cushion block 12 is housed; Be connected with electro-magnetic forming system 14 at dull and stereotyped spiral winding 5, described is at the two ends of pipeline circle L discharged in series gauge tap K, resistance R, rectifier Z, transformer P, capacitor C one end is connected between electric control switch K and resistance R, and the other end is connected on the other end of pipeline circle L.When use, die 11 is placed on cushion block 12, sheet material 10 to be formed light-alloy is placed on die 11, on die 11, have steam vent 15.
As shown in Figure 2, a kind of light alloy material magnetic field impulse drives solid elastic dielectrics pressure former, top board 4, bottom plate 13 is just to arranging, connect by bolt 1, at top board 4 downsides, dull and stereotyped spiral winding 5 is housed, on dull and stereotyped spiral winding 5, copper drive plate 6 is housed; At the upper side of bottom plate 13, cushion block 12 is housed; The capacitance of capacitor C is 768-1152 μ F, and resistance R is 0.01 Ω-0.06 Ω, and rectifier Z is that reverse bias 50kV/ average current is not less than 3.5A, and transformer P is 220V-8kV.When use, die 11 is placed on cushion block 12, on die 11, by flanging bolt 8, blank holder 9 is housed, sheet material 10 to be formed is placed on die 11 by blank holder 9, has steam vent 15 on die 11.
As shown in Figure 3, a kind of light alloy material magnetic field impulse drives solid elastic dielectrics pressure former, top board 4, bottom plate 13 is just to arranging, connect by bolt 1, at top board 4 downsides, dull and stereotyped spiral winding 5 is housed, on dull and stereotyped spiral winding 5, copper drive plate 6 is housed; At the upper side of bottom plate 13, cushion block 12 is housed; Be connected with electro-magnetic forming system 14 at dull and stereotyped spiral winding 5, the capacitance of capacitor C is 768-1152 μ F, and resistance R is 0.01 Ω-0.06 Ω, and rectifier Z is that reverse bias 50kV/ average current is not less than 3.5A, and transformer P is 220V-8kV.When use, die 11 is placed on cushion block 12, on die 11, by flanging bolt 8, blank holder 9 is housed, sheet material 10 to be formed is placed on die 11 by blank holder 9.
Utilize said apparatus to carry out light alloy material magnetic field impulse and drive solid elastic dielectrics pressure forming, comprise the following steps:
(1) die 11 is positioned over to cushion block 12;
(2) sheet material 10 to be formed light-alloy is placed on die 11;
(3) solid elastic dielectrics punch 7 is connected with copper drive plate 6 with sheet material 10 to be formed and contacts;
(4) adjust bolt 1, by top board 4 and bottom plate 13, whole building mortion is fixed;
(5) close discharge switch K, capacitor C starts electric discharge, the electric current changing in dull and stereotyped spiral winding 5, and copper drive plate 6 produces induced-current, and the effect that copper drive plate 6 is subject to electromagnetic force produces high-speed motion; Solid elastic dielectrics punch 7 is the same high-speed motion that occurs under the driving of copper drive plate 6, and the plastic deformation of two-forty occurs breadth light alloy plate 10 under the effect of solid elastic dielectrics punch 7, makes breadth light alloy plate 10 and punch 7 paste contour forming.
Fig. 1 is that breadth light alloy plate magnetic field impulse drives solid elastic dielectrics pressure to become the schematic diagram of complex curved surface parts, in figure, is solid elastic dielectrics block by solid elastic dielectrics punch 7, and copper driving chip 6 is copper driving frame, for constraint and driving solid elastic dielectrics punch 7; Closing Switch K, capacitor C electric discharge moment, electromagnetic force is in copper driving chip 6, copper driving chip 6 drives solid elastic dielectrics punch 7 to move downward at a high speed, if cannot getting rid of in time, the air between die 11 and sheet material 10 can affect sheet material 11 pastes mould, therefore establish steam vent 14 in die 11 bottoms, sheet material 10, under the effect of solid elastic dielectrics punch 7, plastic deformation occurs, final and die pastes contour forming.
Fig. 2 is that breadth light alloy plate magnetic field impulse drives solid elastic dielectrics pressure to become the schematic diagram of box part, in figure, solid elastic dielectrics punch 7 and die 11 are adjusted into respectively to box-like, because magnetic pulse formation speed is very fast, if cannot getting rid of in time, the air between die 11 and sheet material 10 can affect sheet material 11 pastes mould, therefore establish steam vent 14 in die 11 bottoms.Closing Switch K, capacitor C electric discharge moment, electromagnetic force is in copper drive plate 6 and drive solid elastic dielectrics punch 7 to move downward at a high speed, and there is plastic deformation and paste contour forming in sheet material 10.
Fig. 3 is that breadth light alloy plate magnetic field impulse drives solid elastic dielectrics pressure to become the schematic diagram of cylindrical member.In figure, solid elastic dielectrics punch 7 is contained on copper driving chip 6; Closing Switch K, capacitor C electric discharge moment, electromagnetic force is in copper driving chip 6, and copper driving chip 6 drives solid elastic dielectrics punch 7 to move downward at a high speed, and under the effect of solid elastic dielectrics punch 7, there is plastic deformation in sheet material 10, and final and die pastes contour forming.

Claims (3)

1. a light alloy material magnetic field impulse drives solid elastic dielectrics pressure former, it is characterized in that: top board (4), bottom plate (13) is just to arranging, connect by bolt (1), at top board (4) downside, dull and stereotyped spiral winding (5) is housed, copper drive plate (6) is housed on dull and stereotyped spiral winding (5); At the upper side of bottom plate (13), cushion block (12) is housed.
2. light alloy material magnetic field impulse drives a solid elastic dielectrics pressure forming method, it is characterized in that: described method comprises the steps:
(1) die (11) is positioned over to cushion block (12);
(2) sheet material to be formed light-alloy (10) is placed on die (11);
(3) solid elastic dielectrics punch (7) is connected with sheet material to be formed (10) and contacts with copper drive plate (6);
(4) adjust bolt (1), by top board (4) and bottom plate (13), whole building mortion is fixed;
(5) close discharge switch K, capacitor C starts electric discharge, the electric current changing in dull and stereotyped spiral winding (5), copper drive plate (6) produces induced-current, and the effect that copper drive plate (6) is subject to electromagnetic force produces high-speed motion; Solid elastic dielectrics punch (7) is the same high-speed motion that occurs under the driving of copper drive plate (6), there is the plastic deformation of two-forty in breadth light alloy plate (10), make breadth light alloy plate (10) and punch (7) paste contour forming under the effect of solid elastic dielectrics punch (7).
3. a kind of light alloy material magnetic field impulse according to claim 2 drives solid elastic dielectrics pressure forming method, it is characterized in that: above by flanging bolt (8), blank holder (9) is housed at die (11), sheet material to be formed (10) is placed on die (11) by blank holder (9).
CN201410242521.8A 2014-05-28 2014-05-28 Device and method for light alloy material magnetic pulse driven solid elastic medium pressure forming Pending CN103978087A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104841761A (en) * 2015-04-24 2015-08-19 福州大学 Alloy plate electromagnetic punching and flanging forming method and device
CN105817526A (en) * 2016-05-11 2016-08-03 山东小鸭精工机械有限公司 One-off blast hole die for spoke
CN106769544A (en) * 2016-11-30 2017-05-31 湘潭大学 A kind of sheet metal electromagnetism warm drives forming limit test device and forming limit diagram method for building up
CN107234161A (en) * 2017-06-30 2017-10-10 厦门理工学院 A kind of electric current auxiliary selenoid punch press process device and its control method
CN108555110A (en) * 2018-01-11 2018-09-21 湘潭大学 Electromagnetic forming device and manufacturing process based on the miniature complex component of light-alloy that electro plastic effect and elastic granule medium assist
CN108555128A (en) * 2018-05-14 2018-09-21 华中科技大学 A kind of coupling of multi-coil without mould electromagnetism progressive molding device and method
CN109047445A (en) * 2018-07-18 2018-12-21 湘潭大学 The light-alloy pipe forming device assisted based on electromagnetic pulse and elastic granule medium
CN112091072A (en) * 2020-09-08 2020-12-18 中南大学 High-efficiency and high-precision magnetic pulse forming device and method for sheet material

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US5195239A (en) * 1989-10-07 1993-03-23 Mannesmann Aktiengesellschaft Method for assembling shafts
JP2010239113A (en) * 2008-12-03 2010-10-21 Kobe Steel Ltd Electromagnetic pipe expanding inductor and method for manufacturing the same
CN102814401A (en) * 2012-08-09 2012-12-12 昆山铂翔精密五金制品有限公司 Stamping mould drawing mechanism
CN203370901U (en) * 2013-08-06 2014-01-01 福州大学 Sheet-metal micro-blanking device
CN103586325A (en) * 2013-11-05 2014-02-19 华中科技大学 Electromagnetic forming method for deeply punched member

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Publication number Priority date Publication date Assignee Title
US5195239A (en) * 1989-10-07 1993-03-23 Mannesmann Aktiengesellschaft Method for assembling shafts
JP2010239113A (en) * 2008-12-03 2010-10-21 Kobe Steel Ltd Electromagnetic pipe expanding inductor and method for manufacturing the same
CN102814401A (en) * 2012-08-09 2012-12-12 昆山铂翔精密五金制品有限公司 Stamping mould drawing mechanism
CN203370901U (en) * 2013-08-06 2014-01-01 福州大学 Sheet-metal micro-blanking device
CN103586325A (en) * 2013-11-05 2014-02-19 华中科技大学 Electromagnetic forming method for deeply punched member

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104841761A (en) * 2015-04-24 2015-08-19 福州大学 Alloy plate electromagnetic punching and flanging forming method and device
CN105817526A (en) * 2016-05-11 2016-08-03 山东小鸭精工机械有限公司 One-off blast hole die for spoke
CN106769544A (en) * 2016-11-30 2017-05-31 湘潭大学 A kind of sheet metal electromagnetism warm drives forming limit test device and forming limit diagram method for building up
CN106769544B (en) * 2016-11-30 2019-04-19 湘潭大学 A kind of sheet metal electromagnetism warm driving forming limit test device and forming limit diagram method for building up
CN107234161A (en) * 2017-06-30 2017-10-10 厦门理工学院 A kind of electric current auxiliary selenoid punch press process device and its control method
CN107234161B (en) * 2017-06-30 2019-05-28 厦门理工学院 A kind of electric current auxiliary selenoid punch press process device and its control method
CN108555110A (en) * 2018-01-11 2018-09-21 湘潭大学 Electromagnetic forming device and manufacturing process based on the miniature complex component of light-alloy that electro plastic effect and elastic granule medium assist
CN108555110B (en) * 2018-01-11 2019-09-24 湘潭大学 The electromagnetic forming device and manufacturing process of the miniature complex component of light-alloy
CN108555128A (en) * 2018-05-14 2018-09-21 华中科技大学 A kind of coupling of multi-coil without mould electromagnetism progressive molding device and method
CN108555128B (en) * 2018-05-14 2019-08-30 华中科技大学 A kind of coupling of multi-coil without mould electromagnetism progressive molding method
CN109047445A (en) * 2018-07-18 2018-12-21 湘潭大学 The light-alloy pipe forming device assisted based on electromagnetic pulse and elastic granule medium
CN112091072A (en) * 2020-09-08 2020-12-18 中南大学 High-efficiency and high-precision magnetic pulse forming device and method for sheet material

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Application publication date: 20140813

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