CN208289214U - The equipment of electromagnetism auxiliary Friction Stir Welding high-melting-point alloy - Google Patents
The equipment of electromagnetism auxiliary Friction Stir Welding high-melting-point alloy Download PDFInfo
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- CN208289214U CN208289214U CN201820827965.1U CN201820827965U CN208289214U CN 208289214 U CN208289214 U CN 208289214U CN 201820827965 U CN201820827965 U CN 201820827965U CN 208289214 U CN208289214 U CN 208289214U
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Abstract
The utility model relates to a kind of equipments of electromagnetism auxiliary Friction Stir Welding high-melting-point alloy, belong to high-end intelligent manufacturing equipment field.Equipment includes electric current loading unit, magnetic field loading unit and Friction Stir Welding unit, it can be achieved that in the welding process to welding region local loading Pulse Electric Current with High Density and high-intensity magnetic field.Friction Stir Welding unit can realize that Friction Stir Welding is processed, in process, electric current loading unit and magnetic field loading unit follow stirring-head synchronizing moving, apply Pulse Electric Current with High Density and high-intensity magnetic field respectively in test specimen welding region, Friction Stir Welding is assisted to the electromagnetism of high-melting-point alloy to realize.Advantage is: can reduce welding load, widen process window, improve welding efficiency, extend stirring-head service life；The microcosmic texture of weld seam can be improved, improve connector comprehensive mechanical property；Electric current and magnetic field load are not restricted by workpiece size, the processing suitable for large-size workpiece.
Description
Technical field
The utility model relates to high-end intelligent manufacturing equipment field, in particular to a kind of Friction Stir Welding equipment, espespecially
A kind of equipment for electric current and the electromagnetism of magnetic field coupling auxiliary Friction Stir Welding high-melting-point alloy.
Background technique
As a kind of advanced solid-phase welding technology, agitating friction is welded since 1991 by Britain institute of welding (The
Welding Institute-TWI) since invention, since it is consumed with no wlding, postwelding workpiece residual stress is small, eradicates
Melt and weld intrinsic defect (stomata, solidification cracking etc.), has that joint mechanical property is good, is convenient for automatic welding, welding efficiency
The advantages that high, environmental-friendly (no arc light, flue dust etc.), Friction Stir Welding is in aerospace, shipbuilding, automobile, train etc.
Industrial circle is widely applied.But its application range focuses primarily upon the welding of the light-alloys such as aluminium, magnesium, for steel, titanium
The welding of the high-melting-point alloys such as alloy is also seldom applied.
Since the friction that Friction Stir Welding relies primarily on stirring-head and workpiece is welded with squeezing action, for
The welding of high-melting-point alloy, there are heat input deficiency, welding load is excessive, clamping requirement is high, speed of welding is low, stirring-head mill
The problems such as damage is serious, mixing needle frangibility, seriously constrains its application in the welding of high-melting-point alloy material.Physical field conduct
A kind of economic, environmentally friendly, efficient secondary process means, it can improve synthesis and the processing conditions of material, the group of controlled material
It knits and performance, has been obtained in the manufacturing process such as composite material preparation, metal smelt, plastic processing and widely answer
With.Such as very big development all has been obtained in the processing technologys such as the rolling of electric current auxiliary, magnetic field auxiliary heat treatment.In agitating friction
High-density current (>=10A/mm is passed through during weldering2), apparent joule heating effect is not only had, heat input, plasticizing are increased
Metal, and high-density current has pure electro plastic effect, can effectively reduce material flowing deformation stress, promotes material in welding process
The Plastic Flow of material.Apply high-intensity magnetic field (>=1T) in process and also have mangneto plastic effect, by promoting material internal position
Wrong movement and proliferation, to improve workpiece plasticity.In addition, magnetic field auxiliary heat treatment can be by influencing dislocation and crystal boundary come shadow
It rings phase transformation, increase nucleation rate, promote structure refinement, improve weldquality.
Summary of the invention
The purpose of this utility model is to provide a kind of equipments of electromagnetism auxiliary Friction Stir Welding high-melting-point alloy, solve
Stirring-head serious wear during existing Friction Stir Welding high-melting-point alloy, mixing needle frangibility, welding load is big, weldability
The problems such as difference, connector mesoporous hole defect.
The above-mentioned purpose of the utility model is achieved through the following technical solutions:
Electromagnetism assist Friction Stir Welding high-melting-point alloy equipment, including magnetic field loading unit, electric current loading unit and
Friction Stir Welding unit, Friction Stir Welding unit can realize that Friction Stir Welding is processed, in process, electric current load
Unit and magnetic field loading unit follow stirring-head synchronizing moving, apply Pulse Electric Current with High Density and strong respectively in test specimen welding region
Magnetic field assists Friction Stir Welding to the electromagnetism of high-melting-point alloy to realize.
The magnetic field loading unit includes upper magnetic field loading module and lower magnetic field loading module, wherein upper magnetic field loads mould
Block is made of water cooling box 16, upper magnetic patch connector sleeve 3, upper magnetic patch 5, and the upper magnetic patch 5 is an electromagnet, and water cooling box 16 is nested and solid
Due in upper magnetic patch 5, upper magnetic patch 5 is connected in main shaft shell 18 by upper magnetic patch connector sleeve 3, and upper magnetic field loading module is integrally solid
Due in main shaft shell 18；The iron core 5-1 and the outer wall of water cooling box 16 of upper magnetic patch 5 are welded and fixed, 16 inner wall of water cooling box and
Gap between stirring-head 8 and main shaft knife handle 4 is greater than 1mm, not with lathe main axis, by adjusting the mating of upper and lower magnetic patch
The output current intensity of power supply regulates and controls magnetic field rate of loading.
The lower magnetic field loading module includes lower magnetic patch 11, lower magnetic patch link block 9 and compliant platform 10, the lower magnetic patch
11 be electromagnet, is fixed on compliant platform 10 by four lower magnetic patch link blocks 9 by fastening screw, compliant platform 10 is fixed
In in support platform 12, screw pair is driven along the movement of bead direction by servo motor, makes its holding and welding region
Relative position it is constant.
The electric current loading unit includes insulated connecting rod 2, spring 6, conduction brush 7 and power supply 17, the insulation connection
Bar 2 is fixed by bolts in main shaft box enclosure 1, there is square hole below insulated connecting rod 2, and conduction brush 7 connects with insulated connecting rod 2
Contact portion point be also it is rectangular, the two constitutes clearance fit, and conduction brush 7 can be moved up and down, is not able to rotate；6 sets of spring conduction brush 7 with
On the outside of 2 contact-segment of insulated connecting rod, conduction brush 7 is compressed, it is made to keep being in close contact with workpiece 15；The positive and negative anodes of power supply 17 are distinguished
Two conduction brush 7 are connected, are powered to welding region.
The Friction Stir Welding unit includes support platform 12, insulation board 13, compact heap 14, workpiece 15, stirring-head
8, the support platform 12 is fixed on platen, there is insulation board 13, compact heap 14 between workpiece 15 and support platform 12
Workpiece 15 to be fixed in support platform 12, also is provided with insulation board 13 therebetween, magnetic dielectric is arranged in the clamping end of stirring-head 8,
It is clamped in main shaft knife handle 4 again.
The utility model has the beneficial effects that:
1, welding load can be greatly reduced, extend stirring-head service life: the introducing of welding process middle-high density electric current,
Obvious resistance fuel factor can be generated, to improve welding region workpiece temperature；High-density current can also generate pure electroluminescent modeling
Property effect, the reciprocation between electronics wind-force and metallic atom, dislocation can promote the proliferation and sliding of dislocation；In welding process
Apply high-intensity magnetic field, have mangneto plastic effect, by promoting the proliferation and sliding of dislocation, promotes material plasticity, promote welding section
The flowing of domain material.
2, can effectively promote weldquality: the promotion of welding region material plasticity can promote welding region material to mould
Property flowing, the defects of avoiding cavity；Apply high-density current, the Recovery and recrystallization rate of metal and compound can be improved,
Recrystallization temperature is effectively reduced, refines recrystallized structure；Phase transition temperature can be changed in high-intensity magnetic field, increases nucleation rate, promotes
Structure refinement improves the distribution and ratio of product phase；Under Pulse Electric Current with High Density and the collective effect of high-intensity magnetic field, the reply of metal
It is influenced with recrystallization process by pulse Lorentz force, will increase nucleation rate, avoid the appearance of coarse grains phenomenon.
3, electric current described in the utility model and magnetic field loading method are the local loadings to workpiece welding region, therefore, electricity
The load of stream and magnetic field is not limited by workpiece size, can be carried out electromagnetism to large-size workpiece and be assisted Friction Stir Welding.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application,
The illustrative example and its explanation of the utility model do not constitute the improper limit to the utility model for explaining the utility model
It is fixed.
Fig. 1 is that the electromagnetism of the utility model assists Friction Stir Welding high-melting-point alloy equipment overall structure to face signal
Figure；
Fig. 2 is that the electromagnetism of the utility model assists Friction Stir Welding high-melting-point alloy to equip the signal of overall structure solid
Figure；
The upper magnetic patch and the half-section diagram after water cooling box assembling that Fig. 3 is the utility model.
In figure: 1, main shaft box enclosure；2, insulated connecting rod；3, upper magnetic patch connector sleeve；4, main shaft knife handle；5, upper magnetic patch；5-
1, upper magnetic patch iron core；5-2, upper magnetic patch coil；6, spring；7, conduction brush；8, stirring-head；9, lower magnetic patch link block；10, it is servo-actuated flat
Platform；11, lower magnetic patch；12, support platform；13, insulation board；14, compact heap；15, workpiece；16, water cooling box；17, power supply；18, main
Shaft housing.
Specific embodiment
The detailed content and its specific embodiment of the utility model are further illustrated with reference to the accompanying drawing.
Referring to shown in Fig. 1 to Fig. 3, the equipment of the electromagnetism auxiliary Friction Stir Welding high-melting-point alloy of the utility model is electric
Magnetic auxiliary friction stir welding method is to apply simultaneously perpendicular to workpiece direction in stir friction welding process in welding region
High-intensity magnetic field (> 1T) and Pulse Electric Current with High Density (average root-mean-square electric current > 10A/mm perpendicular to bead direction2), it utilizes
The dislocation motion of electro plastic effect, resistance fuel factor and mangneto plastic effect joint effect welding region plastic deforming metal,
Reduce welding load, and influence welding region material phase transformation and recrystallization process etc., to improve weldquality, realize to Gao Rong
The electromagnetism of point alloy assists Friction Stir Welding.Equipment includes electric current loading unit, magnetic field loading unit and Friction Stir Welding
Unit is, it can be achieved that in the welding process to welding region local loading Pulse Electric Current with High Density and high-intensity magnetic field.Welding can be reduced
Load widens process window, improves welding efficiency, extends stirring-head service life；The microcosmic texture of weld seam can be improved, raising connects
Head comprehensive mechanical property；Electric current and magnetic field load are not restricted by workpiece size, the processing suitable for large-size workpiece.
Referring to shown in Fig. 1 and Fig. 2, the equipment of the electromagnetism auxiliary Friction Stir Welding high-melting-point alloy of the utility model is wrapped
Include magnetic field loading unit, electric current loading unit and Friction Stir Welding unit.Friction Stir Welding unit can realize agitating friction
Welding processing, in process, electric current loading unit and magnetic field loading unit follow stirring-head synchronizing moving, weld in test specimen
Region applies Pulse Electric Current with High Density and high-intensity magnetic field respectively, to realize the electromagnetism auxiliary agitating friction weldering to high-melting-point alloy
It connects.
The magnetic field loading unit includes upper magnetic field loading module and lower magnetic field loading module, wherein upper magnetic field loading module
It is made of water cooling box 16, upper magnetic patch connector sleeve 3, upper magnetic patch 5, upper magnetic patch 5 is an electromagnet, by iron core 5-1 and embedded coil
5-2 composition, 16 outer wall of water cooling box are fixedly welded in the iron core 5-1 of magnetic patch 5, and upper magnetic patch 5 is connected to through upper magnetic patch connector sleeve 3
In main shaft shell 18, upper magnetic field loading module is integrally fastened in main shaft shell 18, not with main axis.Lower magnetic field loading module
Including lower magnetic patch 11, lower magnetic patch link block 9 and compliant platform 10, lower magnetic patch 9 is electromagnet, by 4 lower magnetic patch link blocks 9 according to
It is fixed on compliant platform 10 by fastening screw, compliant platform 10 is fixed in support platform 12, drives silk by servo motor
Movement of the thick stick pair of nut along bead direction.
There are four uniformly distributed threaded holes for upper 3 upper end of magnetic field connector sleeve, lower end fixed by screw and main shaft shell 18
Also there are four uniformly distributed threaded holes, fixed by screw and upper magnetic patch 5, so that upper magnetic patch 5 is fixed in main shaft shell 18.
Shown in Figure 3, the iron core 5-1 of the upper magnetic patch 5 and the outer wall of water cooling box 16 are welded and fixed, the water cooling box 16
Gap is greater than 1mm between inner wall and stirring-head 8 and main shaft knife handle 4, not with main axis.The water cooling box 16 is even forced by outer
Water-cooling system cooling and stirring head and upper magnetic patch 5 prevent 5 temperature of magnetic patch excessively high.
Shown in referring to Figures 1 and 2, the mobile platform 10 is made of servo motor, screw pair, sliding rail etc., Gu
Loaded in support platform 12, lower magnetic patch 9 is fixedly installed on mobile platform 10 for Dingan County, can control lower magnetic patch 10 be same as above magnetic patch 5,
Stirring-head is along bead direction synchronizing moving.
The upper magnetic patch 5 and lower magnetic patch 11 are electromagnet, and the two gap is no more than 30mm, and lower magnetic patch 11 has magnetic core, empty
In gap magnetic field strength should be greater than 1T, and magnetic field strength can adjust magnetic field strength by adjusting size of current.The magnetic field load
Unit can load high-intensity magnetic field perpendicular to workpiece direction in welding region, and can be by adjusting the output electric current of the mating power supply of magnet
Intensity regulates and controls load magnetic field strength.
Shown in referring to Figures 1 and 2, the electric current loading unit is by insulated connecting rod 2, spring 6, conduction brush 7 and power supply 17
Composition.Insulated connecting rod 2 is fixed by bolts in main shaft box enclosure 1, there is square hole below insulated connecting rod 2, and conduction brush 7
Be also with 2 contact portion of insulated connecting rod it is rectangular, the two constitute clearance fit, conduction brush 7 can be upper and lower relative to insulated connecting rod 2
It is mobile, it is not able to rotate.6 sets of spring on the outside of conduction brush 7 and 2 contact-segment of insulated connecting rod, compress conduction brush 7, make 7 He of conduction brush
Workpiece 15 remains close contact in the welding process.Insulated connecting rod 2, spring 6 and conduction in the electric current loading unit
Brush 7 is two pairs, is symmetrically distributed in weld seam and stirring both sides of head, and 17 positive and negative anodes of power supply connect two conduction brush 7 respectively, gives welding section
Domain is powered, and power supply 17, conduction brush 7 and workpiece 15 constitute galvanic circle.
The power supply 17 is the pulse power, and the output electric current of the power supply can guarantee that welding region average root-mean-square electric current is close
Degree is in electro plastic effect threshold value (> 10A/mm2) more than, power frequency 10-600HZ.
The Friction Stir Welding unit is by support platform 12, insulation board 13, compact heap 14, workpiece 15,8 structure of stirring-head
At support platform 12 is fixed on platen, there is insulation board 13 between workpiece 15 and support platform 12, and compact heap 14 is by work
Part 15 is fixed in support platform 12, and two workpiece 15 is compressed, so that contact resistance therebetween to pressure is applied in 15 side of workpiece
It reduces to the greatest extent.Insulation board 13 is also lined between compact heap 14 and workpiece 15,8 clamping end of stirring-head is lined with every magnetic dielectric, then
It is clamped in main shaft knife handle 4, prevents high-intensity magnetic field from influencing spindle operation, but also stirring-head and machine tool chief axis insulation.
The foregoing is merely the preferred embodiments of the utility model, are not intended to limit the utility model, for ability
For the technical staff in domain, various modifications and changes may be made to the present invention.It is all to made by the utility model it is any modification,
Equivalent replacement, improvement etc., should be included within the scope of protection of this utility model.
Claims (5)
1. a kind of equipment of electromagnetism auxiliary Friction Stir Welding high-melting-point alloy, it is characterised in that: including magnetic field loading unit, electricity
Loading unit and Friction Stir Welding unit are flowed, Friction Stir Welding unit realizes Friction Stir Welding processing, in process
In, electric current loading unit and magnetic field loading unit follow stirring-head synchronizing moving, apply high density respectively in test specimen welding region
Pulse current and high-intensity magnetic field assist Friction Stir Welding to the electromagnetism of high-melting-point alloy to realize.
2. the equipment of electromagnetism auxiliary Friction Stir Welding high-melting-point alloy according to claim 1, it is characterised in that: described
Magnetic field loading unit include upper magnetic field loading module and lower magnetic field loading module, wherein upper magnetic field loading module is by water cooling box
(16), upper magnetic patch connector sleeve (3), upper magnetic patch (5) composition, the upper magnetic patch (5) are an electromagnet, and water cooling box (16) is nested and solid
Due in upper magnetic patch (5), upper magnetic patch (5) is connected on main shaft shell (18) by upper magnetic patch connector sleeve (3), and upper magnetic field loads mould
Block is integrally fastened on main shaft shell (18)；The iron core (5-1) and the outer wall of water cooling box (16) of upper magnetic patch (5) are welded and fixed, institute
The gap stated between water cooling box (16) inner wall and stirring-head (8) and main shaft knife handle (4) is greater than 1mm, not with lathe main axis, leads to
It crosses and adjusts the output current intensity of the mating power supply of upper and lower magnetic patch to regulate and control magnetic field rate of loading.
3. the equipment of electromagnetism auxiliary Friction Stir Welding high-melting-point alloy according to claim 2, it is characterised in that: described
Lower magnetic field loading module include lower magnetic patch (11), lower magnetic patch link block (9) and compliant platform (10), the lower magnetic patch (11) is
Electromagnet is fixed on compliant platform (10) by four lower magnetic patch link blocks (9) by fastening screw, and compliant platform (10) is solid
Due on support platform (12), screw pair is driven along the movement of bead direction by servo motor, it is made to keep and weld
The relative position in region is constant.
4. the equipment of electromagnetism auxiliary Friction Stir Welding high-melting-point alloy according to claim 1, it is characterised in that: described
Electric current loading unit include insulated connecting rod (2), spring (6), conduction brush (7) and power supply (17), the insulated connecting rod (2)
It is fixed by bolts on main shaft box enclosure (1), has square hole, conduction brush (7) and insulated connecting rod below insulated connecting rod (2)
(2) contact portion is also rectangular, and the two constitutes clearance fit, and conduction brush (7) can be moved up and down, is not able to rotate；Spring (6) covers
It on the outside of conduction brush (7) and insulated connecting rod (2) contact-segment, compresses conduction brush (7), it is made to keep being in close contact with workpiece (15)；
The positive and negative anodes of power supply (17) are separately connected two conduction brush (7), are powered to welding region.
5. the equipment of electromagnetism auxiliary Friction Stir Welding high-melting-point alloy according to claim 1, it is characterised in that: described
Friction Stir Welding unit include support platform (12), insulation board (13), compact heap (14), workpiece (15), stirring-head (8),
The support platform (12) is fixed on platen, is had between workpiece (15) and support platform (12) insulation board (13), pressure
Workpiece (15) is fixed on support platform (12) by tight block (14), also is provided with therebetween insulation board (13), the clamping end of stirring-head (8)
Magnetic dielectric is set, then is clamped on main shaft knife handle (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820827965.1U CN208289214U (en) | 2018-05-31 | 2018-05-31 | The equipment of electromagnetism auxiliary Friction Stir Welding high-melting-point alloy |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820827965.1U CN208289214U (en) | 2018-05-31 | 2018-05-31 | The equipment of electromagnetism auxiliary Friction Stir Welding high-melting-point alloy |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108544082A (en) * | 2018-05-31 | 2018-09-18 | 吉林大学 | Electromagnetism assists the equipment and method of agitating friction welding high-melting-point alloy |
| CN110774586A (en) * | 2019-12-31 | 2020-02-11 | 德召尼克（常州）焊接科技有限公司 | Integrated connection structure of vibration mechanism and driving device |
| CN114769831A (en) * | 2022-03-30 | 2022-07-22 | 重庆普尔萨科技有限公司 | Electromagnetic pulse welding assembly |
| CN114939714A (en) * | 2022-06-08 | 2022-08-26 | 南昌航空大学 | Electromagnetic pulse assisted friction stir lock welding machining device and method |
| CN116944664A (en) * | 2023-09-21 | 2023-10-27 | 深圳市鑫锦润科技有限公司 | Water cooling tank friction stir welding device of three-dimensional clamping tool |
-
2018
- 2018-05-31 CN CN201820827965.1U patent/CN208289214U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108544082A (en) * | 2018-05-31 | 2018-09-18 | 吉林大学 | Electromagnetism assists the equipment and method of agitating friction welding high-melting-point alloy |
| CN110774586A (en) * | 2019-12-31 | 2020-02-11 | 德召尼克（常州）焊接科技有限公司 | Integrated connection structure of vibration mechanism and driving device |
| CN114769831A (en) * | 2022-03-30 | 2022-07-22 | 重庆普尔萨科技有限公司 | Electromagnetic pulse welding assembly |
| CN114769831B (en) * | 2022-03-30 | 2023-11-03 | 重庆普尔萨科技有限公司 | Electromagnetic pulse welding assembly |
| CN114939714A (en) * | 2022-06-08 | 2022-08-26 | 南昌航空大学 | Electromagnetic pulse assisted friction stir lock welding machining device and method |
| US11806803B2 (en) | 2022-06-08 | 2023-11-07 | Nanchang Hangkong University | Electromagnetic pulse-aided friction stir lock welding processing device and method |
| CN116944664A (en) * | 2023-09-21 | 2023-10-27 | 深圳市鑫锦润科技有限公司 | Water cooling tank friction stir welding device of three-dimensional clamping tool |
| CN116944664B (en) * | 2023-09-21 | 2023-11-21 | 深圳市鑫锦润科技有限公司 | Water cooling tank friction stir welding device of three-dimensional clamping tool |
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