CN107081513A - Multi-layer cell aluminium sheet ear, copper polar ear electromagnetic pulse welding method - Google Patents
Multi-layer cell aluminium sheet ear, copper polar ear electromagnetic pulse welding method Download PDFInfo
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- CN107081513A CN107081513A CN201710345579.9A CN201710345579A CN107081513A CN 107081513 A CN107081513 A CN 107081513A CN 201710345579 A CN201710345579 A CN 201710345579A CN 107081513 A CN107081513 A CN 107081513A
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- Prior art keywords
- ear
- aluminium sheet
- copper polar
- sheet ear
- polar ear
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K13/00—Welding by high-frequency current heating
- B23K13/01—Welding by high-frequency current heating by induction heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/18—Dissimilar materials
Abstract
The invention discloses a kind of multi-layer cell aluminium sheet ear, copper polar ear electromagnetic pulse welding method, aluminium sheet ear and copper polar ear are fixed on welder, welder includes frame, backing plate is provided with frame, magnet coil is set, and the weld zone of multilayer aluminium sheet ear is placed on magnet coil, copper polar ear is placed in the top of the superiors' aluminium sheet ear on backing plate, spacer shims are set between the weld zone of aluminium sheet ear and between aluminium sheet ear and copper polar ear weld zone, aluminium sheet ear and copper polar ear are fixed by pressing plate；Magnet coil is connected with the capacitance switch of capacitances to supply power device, and capacitance switch controls break-make by impulse generator；Unbalanced pulse generator, makes the capacitor of capacitances to supply power device charge, when charging voltage reaches setting value, opens capacitance switch, makes capacitor repid discharge, so as to realize battery aluminium sheet ear, the welding of copper polar ear.Welding efficiency is improved, welding quality, reduction energy consumption is improved, does not consume auxiliary material, energy-conserving and environment-protective.
Description
Technical field
The present invention relates to electromagnetic pulse welding method, more particularly to a kind of multi-layer cell aluminium sheet ear, copper polar ear electromagnetic pulse
Welding method.
Background technology
With the lightweight of electrokinetic cell, " aluminium is for copper " is into trend.This is accomplished by leading to copper material and aluminum material
Cross welding procedure to link into an integrated entity, still, copper and aluminium all belong to easy oxidation metal, and the fusing point of aluminium and copper differs about 400 DEG C, can
Weldering property is poor, to reach that good welding effect is then very difficult to the different-metal material welding of this copper and aluminium.Using existing welding
Technology has the following disadvantages：
1st, the welding method such as friction welding (FW), electron beam weldering, supersonic welding welding copper aluminium, because uneven temperature field can cause
The problems such as generation of residual stress and deformation, the joint fragility of welding out is big, is also easy to produce crackle and weld seam is also easy to produce stomata, welds
The workpiece come is picked up to be broken unavoidably.
2nd, laser welding also can only weld relatively thin material, it is necessary to easily gas occur in gas shield, and welding process
Porous dehiscence line.
3rd, one layer can only once be welded, it is impossible to which multilayer is welded, inefficient.
Secondly, conventionally produced bad environments, welding efficiency is low, welding quality unstable, and joints are unsightly.Weldering
Termination process produces the negative effect to environment such as high temperature, heating, flue dust, waste gas.Consumption weldering auxiliary material and gas are needed in welding process
Body, and high energy consumption etc., welding cost is higher.Therefore, new welding efficiency height is found, welding quality is good, energy consumption is low, cost is low
Welding method be always we need solve the problem of.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention provides one kind and can improve welding efficiency, improve welding quality, reduction energy
Consume, do not consume the low multi-layer cell aluminium sheet ear of auxiliary material, cost, copper polar ear electromagnetic pulse welding method.
To achieve these goals, technical scheme is as follows：A kind of multi-layer cell aluminium sheet ear, copper polar ear electromagnetism arteries and veins
Rush welding method, it is characterised in that：Including the step being fixed on the aluminium sheet ear and copper polar ear on welder, the welding
Device, which includes being provided with backing plate, the backing plate in frame, the frame, sets magnet coil, and the weld zone of multilayer aluminium sheet ear is put
Put on magnet coil, the top of the superiors' aluminium sheet ear is placed between copper polar ear, the weld zone of the aluminium sheet ear and aluminium sheet ear
Spacer shims are set between copper polar ear weld zone, aluminium sheet ear and copper polar ear are fixed by pressing plate；
The magnet coil is connected with the capacitance switch of capacitances to supply power device, and the capacitance switch is by impulse generator control
Break-make；Unbalanced pulse generator, makes the capacitor of capacitances to supply power device charge, when charging voltage reaches setting value, opens electric capacity
Switch, makes capacitor repid discharge, so as to realize battery aluminium sheet ear, the welding of copper polar ear.
Using such scheme, the electric current of capacitor flows through magnet coil within the extremely short time and discharged, and produces moment
High-voltage pulse magnetic field, while also producing induced-current on the surface of aluminium sheet ear, and produces induced field, two magnetic fields are mutually exclusive,
Aluminium sheet ear is moved up in the presence of high-intensity magnetic field power, its moment is impacted the purpose for reaching welding to copper polar ear.
Specifically：In welding, aluminium sheet ear and magnet coil can be regarded as conductor, when a solenoid coil is energized,
Aluminium sheet ear inner surface can produce induced-current, and the electric current also produces electromagnetic field.The magnetic field produced according to Lenz's law, magnet coil
With faradic magnetic direction on the contrary, mutually exclusive.Therefore, two magnetic field interactions produce powerful repulsive force, at this moment aluminium
Plate ear is moved up by a upward active force in very short time, when the movement velocity that aluminium sheet ear outwards impacts is more than
During 400 meter per second, that is, realize shaping.
In such scheme：Pulse current during welding reaches more than 600KA.
In such scheme：Pressing plate frame is provided with above the backing plate, the pressing plate is mounted in the lower surface of pressing plate frame, described
Pressing plate frame is moved up and down by cylinder driving.The both sides of the pressing plate frame are provided with correspondence both sides in guide sleeve, the frame
Guide sleeve is provided with guide rod, and the guide sleeve set is on the guide bar.So that the movement of pressing plate does not shift.
In such scheme：The aluminium sheet ear is three layers.
Compared with prior art, the invention has the advantages that：
(1), the present invention is green, environmental protection, the low-carbon technique for being different from existing conventional soldering techniques and technique, can also be extensive
The very big metal tool of homogeneity or the overlap joint welding of different metal materials, particularly welding material attribute difference for good conductivity
Have a clear superiority (such as：Copper-steel, copper-aluminium, copper-magnesium, aluminium-steel, copper-stainless-steel, aluminium-etc.).
(2), method of the invention can once weld multiple layer metal, improve production efficiency, the work for reducing workman is strong
Degree.
(3), whole welding process belongs to solid State Welding, cold welding technique without heating；The metallic character of weldment material is not after welding
Can occur any change, without residual stress；Two kinds of materials form the metallurgical binding of the stabilization of interatomic distance in soldering face；Entirely
Process without heat, it is smokeless, without waste gas, no-spark, without splashing, no auxiliary material consumption, energy consumption is very low, energy-conserving and environment-protective.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is partial enlarged drawing at Fig. 1 A.
Fig. 3 is capacitances to supply power device circuit figure.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples：
Embodiment 1, as Figure 1-3：Multi-layer cell aluminium sheet ear, copper polar ear electromagnetic pulse welding method, including by aluminium sheet
Ear 4 and copper polar ear 5 are fixed on the step on welder, and welder includes being provided with backing plate 2, backing plate 2 in frame, frame 1
Upper setting magnet coil 3, the weld zone of multilayer aluminium sheet ear 4 is placed on magnet coil 3, is here three layers of aluminium sheet ear 4, the superiors
Place between copper polar ear 5, the weld zone of aluminium sheet ear 4 and set between aluminium sheet ear 4 and the weld zone of copper polar ear 5 in the top of aluminium sheet ear 4
Spacer shims 6 are put, aluminium sheet ear 4 and copper polar ear 5 are fixed by pressing plate 8.It is preferred that, the top of backing plate 2 is provided with pressing plate frame 7, pressing plate 8
Mounted in the lower surface of pressing plate frame 7, pressing plate frame 7 is moved up and down by the driving of cylinder 11, so as to be moved up and down with dynamic pressure plate 8 by aluminium sheet
Ear 4 and copper polar ear 5 are compressed.The guide sleeve 9 that the both sides of pressing plate frame 7 are additionally provided with correspondence both sides in guide sleeve 9, frame 1 is provided with
Guide rod 10, guide sleeve 9 is enclosed on guide rod 10.
Magnet coil 3 is connected with the capacitance switch of capacitances to supply power device, and capacitances to supply power device includes AC power, transformation
Device, high-voltage rectifier, capacitor and capacitance switch 12, AC power are connected after transformer transformation with high-voltage rectifier, high pressure
Rectifier is connected with capacitor, and capacitor is connected with capacitance switch 12, and capacitance switch 12 controls break-make by impulse generator 13；Should
The signal input part of impulse generator 13 is connected with AC power, and signal output part is connected with capacitance switch 12.Capacitor can
Think the capacitor bank of multiple compositions.
Unbalanced pulse generator 13, makes the capacitor of capacitances to supply power device charge, when charging voltage reaches setting value, opens
Capacitance switch 12, makes capacitor repid discharge, so as to realize battery aluminium sheet ear, the welding of copper polar ear, pulse current during welding
Reach more than 600KA.
The present invention is not limited to above-mentioned specific embodiment, it will be appreciated that one of ordinary skill in the art is without creative
Work just can make many modifications and variations according to the design of the present invention.In a word, all technical staff in the art are according to this
The design of invention passes through the available technical side of logical analysis, reasoning, or a limited experiment on the basis of existing technology
Case, all should be in the protection domain being defined in the patent claims.
Claims (5)
1. a kind of multi-layer cell aluminium sheet ear, copper polar ear electromagnetic pulse welding method, it is characterised in that：Including by the aluminium sheet ear
(4) and copper polar ear (5) is fixed on the step on welder, the welder includes being provided with frame, the frame (1)
Magnet coil (3) is set on backing plate (2), the backing plate (2), and the weld zone of multilayer aluminium sheet ear (4) is placed on magnet coil (3)
On, the top of the superiors' aluminium sheet ear (4) is placed between copper polar ear (5), the weld zone of the aluminium sheet ear (4) and aluminium sheet ear (4)
Spacer shims (6) are set between copper polar ear (5) weld zone, it is by pressing plate (8) that aluminium sheet ear (4) and copper polar ear (5) is fixed；
The magnet coil (3) is connected with the capacitance switch of capacitances to supply power device, and the capacitance switch is by impulse generator control
Break-make；Unbalanced pulse generator, makes the capacitor of capacitances to supply power device charge, when charging voltage reaches setting value, opens electric capacity
Switch, makes capacitor repid discharge, so as to realize battery aluminium sheet ear, the welding of copper polar ear.
2. multi-layer cell aluminium sheet ear, copper polar ear electromagnetic pulse welding method according to claim 1, it is characterised in that：Welding
When pulse current reach more than 600KA.
3. multi-layer cell aluminium sheet ear, copper polar ear electromagnetic pulse welding method according to claim 1, it is characterised in that：It is described
Pressing plate frame (7) is provided with above backing plate (2), the pressing plate (8) is mounted in the lower surface of pressing plate frame (7), and the pressing plate frame (7) is led to
Cylinder (11) driving is crossed to move up and down.
4. multi-layer cell aluminium sheet ear, copper polar ear electromagnetic pulse welding method according to claim 3, it is characterised in that：It is described
The guide sleeve (9) that the both sides of pressing plate frame (7) are provided with correspondence both sides on guide sleeve (9), the frame (1) is provided with guide rod
(10), the guide sleeve (9) is enclosed on guide rod (10).
5. multi-layer cell aluminium sheet ear, copper polar ear electromagnetic pulse welding method according to claim 4, it is characterised in that：It is described
Aluminium sheet ear (4) is three layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710345579.9A CN107081513A (en) | 2017-05-17 | 2017-05-17 | Multi-layer cell aluminium sheet ear, copper polar ear electromagnetic pulse welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710345579.9A CN107081513A (en) | 2017-05-17 | 2017-05-17 | Multi-layer cell aluminium sheet ear, copper polar ear electromagnetic pulse welding method |
Publications (1)
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| CN107081513A true CN107081513A (en) | 2017-08-22 |
Family
ID=59608247
Family Applications (1)
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|---|---|---|---|
| CN201710345579.9A Pending CN107081513A (en) | 2017-05-17 | 2017-05-17 | Multi-layer cell aluminium sheet ear, copper polar ear electromagnetic pulse welding method |
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| CN (1) | CN107081513A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108767184A (en) * | 2018-06-14 | 2018-11-06 | 湖南湖大艾盛汽车技术开发有限公司 | The connection structure in groups of efficient stable between a kind of power battery module |
| CN108788435A (en) * | 2018-07-06 | 2018-11-13 | 王为希 | The attachment device of electrode terminal and the piece composite members that are flexible coupling |
| CN109088036A (en) * | 2018-07-06 | 2018-12-25 | 王为希 | The preparation method of electrode terminal and the piece composite members that are flexible coupling |
| CN112548305A (en) * | 2020-12-01 | 2021-03-26 | 上海交通大学 | Ultrasonic metal welding base for providing additional force |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108767184A (en) * | 2018-06-14 | 2018-11-06 | 湖南湖大艾盛汽车技术开发有限公司 | The connection structure in groups of efficient stable between a kind of power battery module |
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| CN112548305A (en) * | 2020-12-01 | 2021-03-26 | 上海交通大学 | Ultrasonic metal welding base for providing additional force |
| CN112548305B (en) * | 2020-12-01 | 2022-03-29 | 上海交通大学 | Ultrasonic metal welding base for providing additional force |
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Application publication date: 20170822 |