CN203459492U - Radial-axial two-way loading type metal pipe fitting electromagnetic forming device - Google Patents

Radial-axial two-way loading type metal pipe fitting electromagnetic forming device Download PDF

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Publication number
CN203459492U
CN203459492U CN201320473500.8U CN201320473500U CN203459492U CN 203459492 U CN203459492 U CN 203459492U CN 201320473500 U CN201320473500 U CN 201320473500U CN 203459492 U CN203459492 U CN 203459492U
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China
Prior art keywords
coil
axial
metal tube
radial
electromagnetic
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CN201320473500.8U
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Chinese (zh)
Inventor
邱立
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三峡大学
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Abstract

The utility model relates to a radial-axial two-way loading type metal pipe fitting electromagnetic forming device which mainly comprises a vortex coil generating induction vortex, a magnetic field coil generating a radial magnetic field and a power system supplying power to a vortex coil and a magnetic field coil. By means of the device, radial and axial simultaneous loading is achieved in a metal pipe fitting electromagnetic forming process, an electromagnetic force loading mode can be adjusted, and machining requirements of different workpieces are met. An axial compressed pipe fitting is subjected to electromagnetic expansion, thinning quantity of a pipe wall in the expansion process can be effectively reduced, and forming limit and forming performance of formed workpieces are improved. The device can provide high speed deformation experiment conditions for the metal pipe fitting under different load modes and provides a new experiment mean for a material high speed deformation mechanism study.

Description

Radially with axial biaxial loadings formula metal tube electromagnetic forming device
Technical field
The utility model a kind of radially with axial biaxial loadings formula metal tube electromagnetic forming device, for the shaping processing of metal tube, belong to metal forming and manufacture field.
Background technology
Lightweight is the important technical that energy-saving and emission-reduction are realized in the fields such as Aero-Space, auto industry.And realize light-weighted main path, be to adopt alloy in lightweight material, high-performance aluminium alloy, titanium alloy, magnesium alloy become modern aerospace, auto industry etc. and realize light-weighted preferred material.Yet the alloy in lightweight material plasticity that is at room temperature shaped is lower, drawing property of part is poor, easily cracks, and resilience is larger, adopts conventional machining process to carry out processing effect unsatisfactory.Aluminium matter square box part for certain space flight, while adopting drawing and forming, needs 5 pull and stretch, during also need to increase repeatedly annealing process to eliminate work hardening; Production cycle is long, cost is high, and yield rate is lower.Electro-magnetic forming is a kind of two-forty pulse shaping technique, can significantly improve metal material forming property, is to solve alloy in lightweight one of the difficult effective means that is shaped.By capacitor power, drive coil is discharged, in drive coil, produce a By Impulsive Current, simultaneously near metal works (be arranged in drive coil) inductive loop; Mutual electromagnetic power between coil current and workpiece eddy current, drives metal works to accelerate and plastic deformation occurs, and then realizes the shaping processing to workpiece.Whole electro-magnetic forming process is Millisecond, electromagnetic energy abrupt release, and component shaping speed generally surpasses 300 m/s.Compare with conventional machining process, electro-magnetic forming has two large advantages: the one, and high strain rate (10 3-10 5s -1), can improve material plasticity deformability, make the material forming limit improve 5-10 doubly; The 2nd, the noncontact application of force, drip molding surface quality is high, only needs single mold, and the stress that can reduce in deformation process is concentrated.
Electro-magnetic forming is pressed processing work type, is mainly divided into sheet material electro-magnetic forming and Electromagnetic Forming.In existing metal tube electromagnetic forming technique, electromagnetic force is only radial electromagnetic force direction conventionally, and load mode is single, can not meet the loaded load of different processing requests; When metal tube Electromagnetic bulging, pipe fitting is because be out of shape, and radius increases, tube wall attenuate, and the forming property of processing work reduces; Because the restriction of loading environment, can only study the high speed deformable material characteristic under single loaded load form at present.As U. S. patent 6,047,582, the active force of coil and metal tube is mainly radial electromagnetic force, and metal tube be take radially bulging as main; U.S. patent 7540180, by introducing electromagnetic force concentrator, and the active force with electro-magnetic forming to metal tube, its electromagnetic force is still taken as the leading factor with radial electromagnetic force.
Summary of the invention
The utility model provide a kind of radially with axial biaxial loadings formula metal tube electromagnetic forming device, the load mode of capable of regulating electromagnetic force, meets different workpiece processing requests.Axial compression formula pipe fitting Electromagnetic bulging in the utility model, can effectively reduce the attenuate amount of tube wall in Bulging Process, improves forming limit and the forming property of Forming Workpiece.Solve metal current Electromagnetic Forming because loading the single problem causing.
The technical scheme that the utility model is taked is:
A kind of metal tube electromagnetic processing device, comprise power-supply system, hard-wired eddy current coil and field coil, described eddy current coil, field coil connects power-supply system, it is outside and fixing that described metal tube is positioned at eddy current coil, field coil is positioned at the end of metal tube, power-on system, described eddy current coil, in field coil, produce source electric current, source electric current produces inductive loop in metal tube, metal tube region produces radial magnetic field and axial magnetic field, inductive loop and radial magnetic field and axial magnetic field interact, produce axial electromagnetic force and radial electromagnetic force, drive metal works to deform in the mode of axial tension and radial compression.Described eddy current coil connects the first power-supply system, and described two field coils connect second source system.
A kind of metal tube electromagnetic processing device, comprise power-supply system, built-up coil, built-up coil connects power-supply system, it is outside and fixing that metal tube is positioned at built-up coil, power-on system, in built-up coil, produce source electric current, source electric current produces inductive loop in metal tube, metal tube region produces radial magnetic field and axial magnetic field, inductive loop and radial magnetic field and axial magnetic field interact, produce axial electromagnetic force and radial electromagnetic force, drive metal works to deform with axial compression and the mode being radially expanded.
The utility model a kind of radially with axial biaxial loadings formula metal tube electromagnetic forming device, beneficial effect is as follows: mainly comprise and produce the eddy current coil of inductive loop, produce the field coil of radial magnetic field and be the power-supply system of eddy current coil and field coil power supply.The utility model has been realized radially with axially simultaneously loading in metal tube electro-magnetic forming process, and the load mode of capable of regulating electromagnetic force, meets different workpiece processing requests.
In addition: the axial compression formula pipe fitting Electromagnetic bulging in the utility model, can effectively reduce the attenuate amount of tube wall in Bulging Process, improve forming limit and the forming property of Forming Workpiece.
The utility model can be metal tube the condition of the high speed deformation experiment under different loads form is provided, for the research of material high speed deformation mechanism provides new laboratory facilities.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 be the utility model workpiece two ends load simultaneously radially with axial biaxial loadings formula metal tube electromagnetic forming device schematic diagram.
Wherein: the axial compression formula metal tube Electromagnetic bulging device schematic diagram that Fig. 1 (a) loads for workpiece two ends simultaneously;
The axial tension formula metal tube Electromagnetic bulging device schematic diagram that Fig. 1 (b) loads for workpiece two ends simultaneously;
The axial compression formula metal tube electromagnetism compression set schematic diagram that Fig. 1 (c) loads for workpiece two ends simultaneously;
The axial tension formula metal tube electromagnetism compression set schematic diagram that Fig. 1 (d) loads for workpiece two ends simultaneously.
Fig. 2 be the utility model workpiece one end load radially with axial biaxial loadings formula metal tube electromagnetic forming device schematic diagram.
Wherein: the axial compression formula metal tube Electromagnetic bulging device schematic diagram that Fig. 2 (a) loads for workpiece one end;
The axial tension formula metal tube Electromagnetic bulging device schematic diagram that Fig. 2 (b) loads for workpiece one end;
The axial compression formula metal tube electromagnetism compression set schematic diagram that Fig. 2 (c) loads for workpiece one end;
The axial tension formula metal tube electromagnetism compression set schematic diagram that Fig. 2 (d) loads for workpiece one end.
Fig. 3 is that the utility model eddy current coil and field coil adopt different electrical power system power supply schematic diagram.
Wherein: Fig. 3 (a) adopts same power-supply system series-fed schematic diagram for eddy current coil and field coil;
Fig. 3 (b) adopts same power-supply system parallel operation schematic diagram for eddy current coil and field coil;
Fig. 3 (c) is that eddy current coil and field coil adopt different electrical power system to supply separately electrical schematic.
Fig. 4 is the utility model built-up coil schematic diagram.
Wherein: Fig. 4 (a) is the built-up coil schematic diagram for the axial compression formula metal tube Electromagnetic bulging of workpiece one end loading;
Fig. 4 (b) is the built-up coil schematic diagram for the axial compression formula metal tube electromagnetism compression of workpiece one end loading.
Wherein: 1 is source electric current; 2 is inductive loop; 3 is radial magnetic field; 4 is axial electromagnetic force; 5 is eddy current coil; 6 is field coil; 7 is metal tube; 8-1 is the first power-supply system; 8-2 is second source system; 9 is built-up coil.
The specific embodiment
A processing metal Electromagnetic Forming method, utilizes source electric current 1 in metal tube 7, to produce inductive loop 2, produces radial magnetic field 3 and axial magnetic field in metal tube 7 regions simultaneously.Radial magnetic field 3 produces axial electromagnetic force 4 with inductive loop 2 interactions and acts on metal tube 7, and axial magnetic field and inductive loop 2 interactions produce radial electromagnetic forces and act on metal tube 7.There is axial deformation in metal tube 7, under the effect of radial electromagnetic force, radial deformation occurs under the effect of axial electromagnetic force 4 simultaneously.Source electric current 1 is clock electric current.
Above-mentioned metal tube electromagnetic forming method comprises following four kinds of dissimilar manufacturing process:
A, axial compression formula pipe fitting Electromagnetic bulging: at metal tube 7, axially apply electromagnetism compression stress and radially apply electromagnetism expansive force,
B, the compression of axial compression formula pipe fitting electromagnetism: at metal tube 7, axially apply electromagnetism compression stress and radially apply electromagnetic pressure;
C, axial tension formula pipe fitting Electromagnetic bulging: at metal tube 7, axially apply electromagnetism tensile force and radially apply electromagnetism expansive force;
D, the compression of axial tension formula pipe fitting electromagnetism: at metal tube 7, axially apply electromagnetism tensile force and radially apply electromagnetic pressure.
It is synchronous that the generation time of described inductive loop 2 and radial magnetic field 3 keeps.
Described radial magnetic field 3 is axial compression electromagnetic force or axial magnetic tensile force with the axial electromagnetic force 4 that inductive loop 2 interacts generation.
Described axial electromagnetic force 4 can only act on one end of metal tube 7, or acts on the two ends of metal tube 7 simultaneously.
The utility model is a kind of radially mainly comprises with axial biaxial loadings formula metal tube electromagnetic forming device the eddy current coil 5 that produces inductive loop 2; Produce the field coil 6 of radial magnetic field and be the first power-supply system 8-1 and the second source system 8-2 that eddy current coil 5 and field coil 6 are powered.The first power-supply system 8-1 and second source system 8-2 can be in eddy current coil 5 and field coil 6 produce clock electric currents, and clock electric current produces inductive loop 2 in metal tube 7, produces radial magnetic field 3 in metal tube 7 regions simultaneously.
Embodiment 1:
A kind of metal tube electromagnetic processing device, comprise power-supply system, hard-wired eddy current coil 5 and two field coils 6, described eddy current coil 5, two field coils 6 connect power-supply systems, described eddy current coil 5 is positioned at two field coil 6 centre positions, it is outside and fixing that metal tube 7 is positioned at eddy current coil 5, and two field coils 6 lay respectively at two ends of metal tube 7.Power-on system, in described eddy current coil 5, field coil 6, produce source electric current 1, source electric current 1 produces inductive loop 2 in metal tube 7, metal tube 7 regions produce radial magnetic field 3 and axial magnetic field, inductive loop 2 interacts with radial magnetic field 3 and axial magnetic field, produce axial electromagnetic force 4 and radial electromagnetic force, drive metal works 7 to deform in the mode of axial tension and radial compression, complete the processing of metal tube 7.
Eddy current coil 5 and field coil 6 can adopt same power-supply system serial or parallel connection power supply, or adopt different electrical power system to power respectively.While adopting different electrical power system power supply, described eddy current coil 5 connects the first power-supply system 8-1, and described two field coils 6 connect second source system 8-2.Adopt corresponding control system, make the inductive loop 2 of eddy current coil 5 generations and the radial magnetic field time of field coil 6 generations keep synchronous.
Embodiment 2:
A kind of metal tube electromagnetic processing device, comprise power-supply system, built-up coil 9, built-up coil 9 connects power-supply system, it is outside and fixing that metal tube 7 is positioned at built-up coil 9, power-on system, in built-up coil 9, produce source electric current 1, source electric current 1 produces inductive loop 2 in metal tube 7, metal tube 7 regions produce radial magnetic field 3 and axial magnetic field, inductive loop 2 interacts with radial magnetic field 3 and axial magnetic field, produce axial electromagnetic force 4 and radial electromagnetic force, drive metal works 7 to deform with axial compression and the mode being radially expanded, complete the processing of metal tube 7.
Embodiment 3:
Metal works 7 needs integral expansion to add man-hour, can adopt the workpiece two ends shown in Fig. 1 (a) to load the two ends shown in axial compression formula pipe fitting Electromagnetic bulging device or Fig. 1 (b) simultaneously and load axial tension formula metal tube Electromagnetic bulging device simultaneously, at metal works 7 two ends, load axial electromagnetic force processing work simultaneously.
Embodiment 4:
7 of metal works need one end bulging to add man-hour, can adopt the workpiece one end shown in Fig. 2 (a) to load the one end shown in axial compression formula metal tube Electromagnetic bulging device or Fig. 2 (b) and load axial tension formula metal tube Electromagnetic bulging device, in metal works 7 one end, load axial electromagnetic force processing work.
Embodiment 5:
Metal works 7 needs reduced overall to add man-hour, can adopt the workpiece two ends shown in Fig. 1 (c) to load the two ends shown in axial compression formula pipe fitting electromagnetism compression set or Fig. 1 (d) simultaneously and load axial tension formula metal tube electromagnetism compression set simultaneously, at metal works 7 two ends, load axial electromagnetic force processing work simultaneously.
Embodiment 6:
When 7 of metal works need one end compression process, can adopt the workpiece one end shown in Fig. 2 (c) to load the one end shown in axial compression formula metal tube electromagnetism compression set or Fig. 2 (d) and load axial tension formula metal tube electromagnetism compression set, in metal works 7 one end, load axial electromagnetic force processing work.

Claims (3)

  1. One kind radially with axial biaxial loadings formula metal tube electromagnetic forming device, comprise power-supply system, hard-wired eddy current coil (5) and field coil (6), described eddy current coil (5), field coil (6) connects power-supply system, it is characterized in that, it is outside and fixing that described metal tube (7) is positioned at eddy current coil (5), field coil (6) is positioned at the end of metal tube (7), power-on system, described eddy current coil (5), generation source electric current (1) in field coil (6), source electric current (1) produces inductive loop (2) in metal tube (7), metal tube (7) region produces radial magnetic field (3) and axial magnetic field, inductive loop (2) interacts with radial magnetic field (3) and axial magnetic field, produce axial electromagnetic force (4) and radial electromagnetic force, drive metal works (7) to deform in the mode of axial tension and radial compression.
  2. According to claim 1 a kind of radially with axial biaxial loadings formula metal tube electromagnetic forming device, it is characterized in that, described eddy current coil (5) connects the first power-supply system (8-1), described field coil (6) connects second source system (8-2).
  3. One kind radially with axial biaxial loadings formula metal tube electromagnetic forming device, comprise power-supply system, built-up coil (9), built-up coil (9) connects power-supply system, it is characterized in that, it is outside and fixing that metal tube (7) is positioned at built-up coil (9), power-on system, generation source electric current (1) in built-up coil (9), source electric current (1) produces inductive loop (2) in metal tube (7), metal tube (7) region produces radial magnetic field (3) and axial magnetic field, inductive loop (2) interacts with radial magnetic field (3) and axial magnetic field, produce axial electromagnetic force (4) and radial electromagnetic force, drive metal works (7) to deform with axial compression and the mode being radially expanded.
CN201320473500.8U 2013-08-05 2013-08-05 Radial-axial two-way loading type metal pipe fitting electromagnetic forming device CN203459492U (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103406418A (en) * 2013-08-05 2013-11-27 三峡大学 Method and device for electromagnetically forming metal pipe fitting in radial and axial loading mode
CN107030172A (en) * 2017-05-12 2017-08-11 华中科技大学 A kind of electromagnetic casting method and device based on tubing under background magnetic field
CN107116128A (en) * 2017-06-05 2017-09-01 三峡大学 The plate electromagnetism hemmer and method of a kind of axial-radial electromagnetic force timesharing loading
CN107159772A (en) * 2017-07-04 2017-09-15 郑州大学第二附属医院 Many siphunculus branch pipe processing devices and technique
CN109946181A (en) * 2019-03-18 2019-06-28 三峡大学 It is a kind of for testing the device and method of metallic welded tubes part connector impact strength
CN109967593A (en) * 2019-03-18 2019-07-05 三峡大学 A kind of device and method for realizing that pipe fitting Electromagnetic bulging is compressed axially using radially constant magnetic field and inductive loop
CN109967594A (en) * 2019-03-18 2019-07-05 三峡大学 Corrugated device and method when a kind of reduction tube compression using axial magnetic pulling force
CN110177632A (en) * 2017-01-18 2019-08-27 Adm28责任有限公司 For passing through the device of magnetic forming punching press and associated method

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103406418A (en) * 2013-08-05 2013-11-27 三峡大学 Method and device for electromagnetically forming metal pipe fitting in radial and axial loading mode
CN110177632A (en) * 2017-01-18 2019-08-27 Adm28责任有限公司 For passing through the device of magnetic forming punching press and associated method
CN107030172A (en) * 2017-05-12 2017-08-11 华中科技大学 A kind of electromagnetic casting method and device based on tubing under background magnetic field
CN107116128A (en) * 2017-06-05 2017-09-01 三峡大学 The plate electromagnetism hemmer and method of a kind of axial-radial electromagnetic force timesharing loading
CN107116128B (en) * 2017-06-05 2019-09-24 三峡大学 A kind of the plate electromagnetism hemmer and method of axial direction-radial electromagnetic force timesharing load
CN107159772A (en) * 2017-07-04 2017-09-15 郑州大学第二附属医院 Many siphunculus branch pipe processing devices and technique
CN109946181A (en) * 2019-03-18 2019-06-28 三峡大学 It is a kind of for testing the device and method of metallic welded tubes part connector impact strength
CN109967593A (en) * 2019-03-18 2019-07-05 三峡大学 A kind of device and method for realizing that pipe fitting Electromagnetic bulging is compressed axially using radially constant magnetic field and inductive loop
CN109967594A (en) * 2019-03-18 2019-07-05 三峡大学 Corrugated device and method when a kind of reduction tube compression using axial magnetic pulling force
CN109967593B (en) * 2019-03-18 2020-06-16 三峡大学 Device and method for achieving electromagnetic bulging axial compression of pipe fitting by adopting radial constant magnetic field and induced eddy current
CN109967594B (en) * 2019-03-18 2020-07-07 三峡大学 Device and method for reducing wrinkling of pipe fitting during compression by adopting axial electromagnetic tension

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Granted publication date: 20140305

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