CN104690414A - Electroplastic ultrasonic spot welding device - Google Patents
Electroplastic ultrasonic spot welding device Download PDFInfo
- Publication number
- CN104690414A CN104690414A CN201510095375.5A CN201510095375A CN104690414A CN 104690414 A CN104690414 A CN 104690414A CN 201510095375 A CN201510095375 A CN 201510095375A CN 104690414 A CN104690414 A CN 104690414A
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- China
- Prior art keywords
- ultrasonic vibration
- ultrasonic
- vibration applicator
- welding
- spot welding
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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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses an electroplastic ultrasonic spot welding device which comprises an upper ultrasonic vibration acoustic pole and a lower ultrasonic vibration acoustic pole, wherein an upper electric brush array adhered to to-be-welded workpieces is annularly and uniformly distributed around the upper ultrasonic vibration acoustic pole; a lower electric brush array adhered to the to-be-welded workpieces is annularly and uniformly distributed around the lower ultrasonic vibration acoustic pole; the upper ultrasonic vibration acoustic pole and/or the lower ultrasonic vibration acoustic pole are/is connected with a servo pressure device; the upper ultrasonic vibration acoustic pole is connected with an ultrasonic generator and a transducer; and the upper electric brush array and the lower electric brush array are connected with a power supply. The device can introduce an electroplastic effect into ultrasonic spot welding, and makes hard metal welding by a solid phase welding method, namely the ultrasonic spot welding, possible; in addition, abrasion of the ultrasonic vibration acoustic poles of the ultrasonic welding is less; common energy shortage in the ultrasonic welding can be further covered; and welding defects such as seaming failure are avoided.
Description
Technical field
The present invention relates to a kind of ultrasonic welding technique field, specifically, relate to the ultrasonic welding technique being applicable to foil and thin plate.
Background technology
Ultrasonic spot welding, as a kind of high-quality and efficient Solid-phase welding method, is widely used in the connection application scenario of various metal foil and thin plate.But need to produce violent plastic deformation between welded piece interface to realize combining in its welding process, therefore ultrasonic bonding is difficult to the welding occasion containing high hardness material.
In the process of Plastic Deformation of Metal Materials, to its deformed area by exceeding direct current or the pulse current of certain critical value, there will be material deformation drag and sharply declining, the phenomenon that plasticity significantly improves, being called the Electroplastic of metal.Utilize electro plastic effect can significantly improve the forming materials limit, the deformation processing being difficult to shaping or inductile material under making normal condition becomes possibility.
Summary of the invention
The technical problem to be solved in the present invention is how to weld efficiently to high-hardness metal material or containing high-hardness metal material, a kind of Electroplastic ultrasonic spot welding device is provided, electro plastic effect can be introduced in the technique of ultrasonic spot welding by this device, thus realizes the solid diffusivity containing hard metal workpiece by the method for ultrasonic spot welding.
In order to solve the problems of the technologies described above, the present invention is achieved by following technical scheme:
A kind of Electroplastic ultrasonic spot welding device, comprise the upper ultrasonic vibration applicator be positioned at above welded piece and the lower ultrasonic vibration applicator be positioned at below welded piece, described upper ultrasonic vibration applicator and described lower ultrasonic vibration applicator are coaxially arranged; Described upper ultrasonic vibration applicator peripheral circular is evenly equipped with the power up brush array fitting in welded piece upper surface, and described lower ultrasonic vibration applicator peripheral circular is evenly equipped with the lower brush array fitting in welded piece lower surface;
Described upper ultrasonic vibration applicator and/or described lower ultrasonic vibration applicator are connected with servo pressurization device;
Described upper ultrasonic vibration applicator is connected to ultrasonic generator and transducer by ultrasonic transformer;
Described power up brush array and described lower brush array are connected to power supply.
The end face of described upper ultrasonic vibration applicator, described lower ultrasonic vibration applicator is provided with micro-tooth or decorative pattern.
Described power supply comprises dc source or the pulse power.
The invention has the beneficial effects as follows:
(1) the present invention can introduce electro plastic effect in ultrasonic spot welding, makes to utilize this Solid-phase welding method welding of ultrasonic spot welding hard metal to become possibility.
(2) the present invention can make metal, based on Electroplastic effect, plastic deformation easily occur in welding process, therefore less to the ultrasonic vibration applicator wearing and tearing of ultrasonic bonding.
(3) the present invention is because electric current can produce Joule heat by metal in welding process, thus can make up energy shortage phenomenon common in ultrasonic bonding, avoids the appearance of the weld defects such as non-seam.
Accompanying drawing explanation
Fig. 1 is the structural representation of Electroplastic ultrasonic spot welding device provided by the present invention;
Fig. 2 is the A direction view of Fig. 1.
In figure: 1, upper ultrasonic vibration applicator; 2, lower ultrasonic vibration applicator; 3, welded piece; 4, power up brush array; 5, lower brush array; 6, ultrasonic transformer; 7, ultrasonic generator and transducer.
Detailed description of the invention
For summary of the invention of the present invention, feature and effect can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
As shown in Figure 1, present embodiment discloses a kind of Electroplastic ultrasonic spot welding device, mainly comprise ultrasonic vibration applicator 1, lower ultrasonic vibration applicator 2, power up brush array 4, lower brush array 5, servo pressurization device, ultrasonic transformer 6, ultrasonic generator and transducer 7, power supply.
The cylindrical structure that the powdered metallurgical material that upper ultrasonic vibration applicator 1 and lower ultrasonic vibration applicator 2 are low acoustic resistance is made, diameter is 6mm, is highly 15mm.Upper ultrasonic vibration applicator 1 is positioned at above welded piece 3, and lower ultrasonic vibration applicator 2 is positioned at below welded piece 3, and upper ultrasonic vibration applicator 1 and lower ultrasonic vibration applicator about 2 are coaxially arranged.Different according to welding material, the end face of upper ultrasonic vibration applicator 1 and lower ultrasonic vibration applicator 2 can be plane, also can be provided with micro-tooth or decorative pattern, to guarantee effectively to transmit ultrasonic energy.Upper ultrasonic vibration applicator 1 can do the ultrasonic frequency vibratory perpendicular to welded piece 3 surface, the ultrasonic twist motion along own axes or be parallel to the translation of surface of the work.Lower ultrasonic vibration applicator 2 keeps maintaining static in welding process.
Power up brush array 4 and lower brush array 5 can carry the copper brush composition of 4kA maximum current by 8 circumference uniform distribution ground.8 brush annulars of power up brush array 4 are distributed in around ultrasonic vibration applicator 1, and its end fits in top welded piece 3 upper surface; 8 brush annulars of lower brush array 5 are distributed in around lower ultrasonic vibration applicator 2, and its end fits in bottom welded piece 3 lower surface.Power up brush array more than 4 ultrasonic vibration applicator 1 is center of circle even circumferential layout, lower brush array less than 5 ultrasonic vibration applicator 2 is that center of circle even circumferential is arranged, effectively the heat that the energy of ultrasonic vibration and resistance produce can be acted on solder joint place simultaneously, lay important foundation for introducing electro plastic effect in welding procedure.
Servo pressurization device for Pressure Welding field common with servomotor provide pressurization moment device, ultrasonic vibration applicator 1 can be controlled and lower ultrasonic vibration applicator 2 pressurizes simultaneously, also can control separately ultrasonic vibration applicator 1 or lower ultrasonic vibration applicator 2 pressurizes.
Ultrasonic generator and transducer 6 connect upper ultrasonic vibration applicator 1 by ultrasonic transformer, and lower ultrasonic vibration applicator 2 maintains static.Ultrasonic generator and transducer are the conventional generator in ultrasonic spot welding field and transducer, resonance is produced by sound system, apply ultrasonic vibration by upper ultrasonic vibration applicator 1 pair of welded piece 3, thus make welded piece 3 binding face generation Relative friction, thus realize Solid-phase welding.
Power supply can select dc source or the pulse power.Power supply connects power up brush array 4 and lower brush array 5 respectively, exports DC current or pulse current to it, thus causes electro plastic effect.
Utilize Electroplastic ultrasonic spot welding device of the present invention can weld different welding work pieces combining form such as hard metal of the same race, xenogenesis hard metal and hard metal and soft metal etc.First control above ultrasonic vibration applicator 1 and lower ultrasonic vibration applicator 2 pairs of welded pieces 3 by servo pressurization device in welding process to pressurize, and control upper ultrasonic vibration applicator 1 pair of welded piece 3 surface by ultrasonic generator and transducer 6 and carry out ultrasonic frequency vibratory, make to produce solid diffusivity between welded piece 3, power up brush array 4 and lower brush array 5 are energized to welded piece 3 subsequently, now there is electro plastic effect in welded piece 3, solid diffusivity is realized under ultrasonic vibration with friction, electric current can bring out electro plastic effect by workpiece and produce Joule heat, thus reduce the tendency of non-seam in conventional ultrasound metal solder process.
Although be described the preferred embodiments of the present invention by reference to the accompanying drawings above; but the present invention is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, can also make the concrete conversion of a lot of form, these all belong within protection scope of the present invention.
Claims (3)
1. an Electroplastic ultrasonic spot welding device, is characterized in that, comprise the upper ultrasonic vibration applicator be positioned at above welded piece and the lower ultrasonic vibration applicator be positioned at below welded piece, described upper ultrasonic vibration applicator and described lower ultrasonic vibration applicator are coaxially arranged; Described upper ultrasonic vibration applicator peripheral circular is evenly equipped with the power up brush array fitting in welded piece upper surface, and described lower ultrasonic vibration applicator peripheral circular is evenly equipped with the lower brush array fitting in welded piece lower surface;
Described upper ultrasonic vibration applicator and/or described lower ultrasonic vibration applicator are connected with servo pressurization device;
Described upper ultrasonic vibration applicator is connected to ultrasonic generator and transducer by ultrasonic transformer;
Described power up brush array and described lower brush array are connected to power supply.
2. a kind of Electroplastic ultrasonic spot welding device according to claim 1, is characterized in that, the end face of described upper ultrasonic vibration applicator, described lower ultrasonic vibration applicator is provided with micro-tooth or decorative pattern.
3. a kind of Electroplastic ultrasonic spot welding device according to claim 1, it is characterized in that, described power supply comprises dc source or the pulse power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510095375.5A CN104690414A (en) | 2015-03-04 | 2015-03-04 | Electroplastic ultrasonic spot welding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510095375.5A CN104690414A (en) | 2015-03-04 | 2015-03-04 | Electroplastic ultrasonic spot welding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104690414A true CN104690414A (en) | 2015-06-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510095375.5A Pending CN104690414A (en) | 2015-03-04 | 2015-03-04 | Electroplastic ultrasonic spot welding device |
Country Status (1)
| Country | Link |
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| CN (1) | CN104690414A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106513952A (en) * | 2016-11-11 | 2017-03-22 | 北京工业大学 | Electric arc welding defect inhibition method |
| CN109852785A (en) * | 2017-11-30 | 2019-06-07 | 天津大学 | It is a kind of for refining the ultrasonic impact apparatus and method of wind power bearing Alloy by Laser Surface Remelting crystal grain |
| CN111250540A (en) * | 2020-01-22 | 2020-06-09 | 武汉科技大学 | Silicon steel cold rolling process based on direct current assistance |
| EP4201573A1 (en) * | 2021-12-27 | 2023-06-28 | Spirit AeroSystems, Inc. | Method of bonding metallic components to form machining preform |
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| CN101966624A (en) * | 2010-09-10 | 2011-02-09 | 华南理工大学 | Welding method based on precise combination of ultrasonic energy and resistance heat and device thereof |
| CN102974945A (en) * | 2012-12-24 | 2013-03-20 | 上海电机学院 | Electro-plastic friction stir spot welding device and method thereof |
| CN103008874A (en) * | 2012-12-24 | 2013-04-03 | 上海电机学院 | Agitating friction spot welding device and method for dissimilar metal |
| CN103028838A (en) * | 2012-12-18 | 2013-04-10 | 哈尔滨工业大学 | Welding tool and method for electromagnetic plastic friction stir welding |
| CN103071910A (en) * | 2013-01-14 | 2013-05-01 | 广东工业大学 | Double-ultrasonic-high-frequency induction combined precision micro-connection device and method |
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2015
- 2015-03-04 CN CN201510095375.5A patent/CN104690414A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013107A (en) * | 2005-09-28 | 2007-08-08 | 通用电气公司 | System and method for monitoring weld operation |
| CN101966624A (en) * | 2010-09-10 | 2011-02-09 | 华南理工大学 | Welding method based on precise combination of ultrasonic energy and resistance heat and device thereof |
| CN103028838A (en) * | 2012-12-18 | 2013-04-10 | 哈尔滨工业大学 | Welding tool and method for electromagnetic plastic friction stir welding |
| CN102974945A (en) * | 2012-12-24 | 2013-03-20 | 上海电机学院 | Electro-plastic friction stir spot welding device and method thereof |
| CN103008874A (en) * | 2012-12-24 | 2013-04-03 | 上海电机学院 | Agitating friction spot welding device and method for dissimilar metal |
| CN103071910A (en) * | 2013-01-14 | 2013-05-01 | 广东工业大学 | Double-ultrasonic-high-frequency induction combined precision micro-connection device and method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106513952A (en) * | 2016-11-11 | 2017-03-22 | 北京工业大学 | Electric arc welding defect inhibition method |
| CN106513952B (en) * | 2016-11-11 | 2019-02-19 | 北京工业大学 | A kind of defect suppressing method of arc welding |
| CN109852785A (en) * | 2017-11-30 | 2019-06-07 | 天津大学 | It is a kind of for refining the ultrasonic impact apparatus and method of wind power bearing Alloy by Laser Surface Remelting crystal grain |
| CN111250540A (en) * | 2020-01-22 | 2020-06-09 | 武汉科技大学 | Silicon steel cold rolling process based on direct current assistance |
| EP4201573A1 (en) * | 2021-12-27 | 2023-06-28 | Spirit AeroSystems, Inc. | Method of bonding metallic components to form machining preform |
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Application publication date: 20150610 |