CN101574756B - Electromagnetic vibrating, stirring and friction-welding stirring-head and welding method thereof - Google Patents
Electromagnetic vibrating, stirring and friction-welding stirring-head and welding method thereof Download PDFInfo
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- CN101574756B CN101574756B CN2009101036902A CN200910103690A CN101574756B CN 101574756 B CN101574756 B CN 101574756B CN 2009101036902 A CN2009101036902 A CN 2009101036902A CN 200910103690 A CN200910103690 A CN 200910103690A CN 101574756 B CN101574756 B CN 101574756B
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Abstract
The invention discloses an electromagnetic vibrating, stirring and friction-welding stirring-head and a corresponding welding method thereof. An electromagnetic vibrating device is adopted to assist electromagnetic vibration during the process of stirring, and friction-welding to lead the stirring-head to vibrate at high frequency simultaneously when the stirring-head rotates at a high speed to transfer energy to the metals in a stirring and friction area so as to lead the metals to achieve plastic state more quickly; the thermoplastic metals receive the composite effects of a friction force and the high-frequency vibrating energy during the rotating process of a stirring needle, thus being capable of effectively improving the velocity of the thermoplastic metal flow, improving the formingefficiency and quality of welding seams and being more effectively used for the welding and processing of high-melting point materials and thick boards.
Description
Technical field
The present invention relates to the metal solder field, specifically a kind of electromagnetic vibrating, stirring and friction-welding stirring-head device and correlation method thereof.
Background technology
Friction stir welding (to call FSW in the following text) is a patent solid phase interconnection technique of Britain's institute of welding invention in 1991, is called " the revolutionary solder technology of tool " by the insider, has broad application prospects.The friction stir welding welding process is to be stretched into the seam crossing of workpiece by the soldering tip of a cylindrical shape (welding pin), high speed rotation by soldering tip, make itself and welding work pieces material friction, thereby the material temperature that makes connecting portion raises softening, simultaneously material is carried out agitating friction and finishes welding.At present, the application that FSW has succeedd in the connection of non-ferrous metal, welding to refractory metal has also obtained some progress, in FSW technology, mixing needle and the active force that is welded between the sheet material affect whole welding process by heat production and mobile two aspects of plastic metal, heating of metal institute calorific requirement is mainly derived from the friction between stirring-head shoulder and the weldment upper surface, and skin temperature is high and lower away from shoulder place temperature during welding, is difficult to obtain the weld seam of even tissue.Therefore, especially introduce auxiliary thermal source in the materials with high melting point friction stir welding, not only help appearance of weld, and can reduce the soldering set abrasion, improve soldering set service life at metal material.
So the temperature when how to improve the friction stir welding welding to improve welding quality, becomes problem demanding prompt solution in the prior art.In addition, patent (publication number CN1836820A) has proposed ULTRASONIC COMPLEX friction stir welding method and device.But this method and apparatus exists the lower and complex structure of welding temperature, defective with high costs equally.
Summary of the invention
Technical problem to be solved by this invention is in order to overcome the prior art above shortcomings, and provide a kind of simple in structure, the electromagnetic vibrating, stirring and friction-welding stirring-head that cost is low, and corresponding use the electric and magnetic oscillation friction stir welding method of this device, temperature improves greatly in the time of can making the agitating friction welding, and have and be easy to realize widely applicable characteristics.
For solving the problems of the technologies described above, the present invention has adopted following technical scheme:
At first the applicant designs a kind of electromagnetic vibrating, stirring and friction-welding stirring-head, comprise the stirring-head body, its characteristics are, also comprise electromagnetic oscillation device, described electromagnetic oscillation device comprises the electromagnetic vibrator that is made of the fixture that is installed, electromagnet, armature, flat spring and oscillating drive link, wherein electromagnet is fixed in the fixture that is installed, the adjacent setting of one end of armature with electromagnet, the other end and flat spring middle part are connected, the fixture that is installed is fixed at the flat spring two ends, and an end of oscillating drive link is fixedly connected on one side opposite with armature on the flat spring.
Above-mentioned electromagnetic vibrating, stirring and friction-welding stirring-head can be following three kinds of concrete versions:
First kind of version is: this electromagnetic vibrating, stirring and friction-welding stirring-head, described electromagnetic oscillation device also comprises a ring-shaped step that is arranged on the stirring-head, be provided with an annular insulation crust in the upper surface of ring-shaped step correspondence, annular insulation crust inside be provided with electromagnetic vibrator and and the symmetrically arranged balance weight of electromagnetic vibrator, described annular insulation crust is provided with the copper conducting ring, the copper conducting ring is inboard to be electrically connected with electromagnetic vibrator, the outside slidably is electrically connected with carbon brush on being fixed in the clamping device that soldering tip installs additional, the end that oscillating drive link is opposite with flat spring in the electromagnetic vibrator is the cambered surface setting, the whole horizontally set of electromagnetic vibrator, the curved end of its oscillating drive link is connected with the face of cylinder of stirring-head by middle elastic insulator.
Second kind of version is: this electromagnetic vibrating, stirring and friction-welding stirring-head, described electromagnetic oscillation device also comprises a ring-shaped step that is arranged on the stirring-head, be provided with an annular insulation crust in the upper surface of ring-shaped step correspondence, annular insulation crust inside be provided with electromagnetic vibrator and and the symmetrically arranged balance weight of electromagnetic vibrator, described annular insulation crust is provided with the copper conducting ring, the copper conducting ring is inboard to be electrically connected with electromagnetic vibrator, the outside slidably is electrically connected with carbon brush on being fixed in the clamping device that soldering tip installs additional, the end that oscillating drive link is opposite with flat spring in the electromagnetic vibrator is that the plane is provided with, whole vertical setting of electromagnetic vibrator, the flat shape end face of its oscillating drive link is connected with the upper surface of stirring-head ring-shaped step by middle elastic insulator.
The third version is: this electromagnetic vibrating, stirring and friction-welding stirring-head, the end that oscillating drive link is opposite with flat spring in the described electromagnetic oscillation device is that the plane is provided with, whole vertical setting of electromagnetic vibrator, the flat shape end face of its oscillating drive link is crimped on the workpiece to be processed back side and the corresponding position of mixing needle by middle elastic insulator.
Simultaneously, at above-mentioned three kinds of concrete structures, the present invention also provides following three kinds of concrete different welding methods:
A kind of electric and magnetic oscillation friction stir welding method, its characteristics have been to use the electromagnetic vibrating, stirring and friction-welding stirring-head of above-mentioned first kind of concrete structure, stirring-head and the welding of the rotation carrying out of the mixing needle on it agitating friction when welding, simultaneously, by carbon brush and copper conducting ring electromagnetic vibrator is switched on, make oscillating drive link produce the high-frequency electromagnetic vibration, this electric and magnetic oscillation is vertically imported the face of cylinder of stirring-head through middle elastic insulator, and then introducing friction stir welding process, stirring-head shoulder that driving is rotated at a high speed and mixing needle are done the vibration perpendicular to the stirring-head axis direction, realization passes to the weld zone plastic metal with vibrational energy, make it change plasticity more quickly into and strengthen amount of plastic deformation, realize metal solder.
A kind of electric and magnetic oscillation friction stir welding method, its characteristics are to have used as above-mentioned second kind of described electromagnetic vibrating, stirring and friction-welding stirring-head of concrete structure, stirring-head and the welding of the rotation carrying out of the mixing needle on it agitating friction when welding, simultaneously, by carbon brush and copper conducting ring electromagnetic vibrator is switched on, make oscillating drive link produce the high-frequency electromagnetic vibration, this electric and magnetic oscillation is vertically imported the face of cylinder of stirring-head through middle elastic insulator, and then introducing friction stir welding process, the stirring-head shoulder and the mixing needle that drive rotation are at a high speed done the vibration that is parallel to the stirring-head axis direction, realization passes to the weld zone plastic metal with vibrational energy, make it change plasticity more quickly into and strengthen amount of plastic deformation, realize metal solder.
A kind of electric and magnetic oscillation friction stir welding method, its characteristics are to have used as the described electromagnetic vibrating, stirring and friction-welding stirring-head of above-mentioned the third concrete structure, in common agitating friction welding, the flat shape end face of oscillating drive link is connected with the back side of workpiece weld by middle elastic insulator in the described electromagnetic vibrator, energising produces oscillating drive link and points to the axial high-frequency electromagnetic vibration of stirring-head to electromagnetic vibrator, through middle elastic insulator this electric and magnetic oscillation is imported the friction stir welding process, realization passes to the weld zone plastic metal with vibrational energy, make it change plasticity more quickly into and strengthen amount of plastic deformation, realize metal solder.
Introduce technical solution of the present invention and thinking thereof below in further detail:
Technical scheme of the present invention is: according to different vibration modes, the design electromagnetic oscillation device: (1) is designed to annular with electromagnetic oscillation device when directly loading electric and magnetic oscillation by stirring-head, casing insulation but the copper conducting ring is arranged; Built-in one or more electromagnetic vibrator, and install balance weight additional to guarantee the balance of this device when rotating at a high speed in symmetric position as the case may be; This vibrator and balance weight all are fixed on the annular outer cover; Carbon brush is fixed on the clamping device that soldering tip installs additional, contacts all the time with copper conducting ring on the annular vibrating device of rotation, makes the vibrator conduction; Ring device finally is fixed on the stirring-head, wherein by middle elastic insulator and auxiliary pinching screw, if vibration produces perpendicular to the stirring-head axis direction, use the cambered surface oscillating drive link, be parallel to this axis direction, use the plane vibration drive link if vibration produces; (2) when pointing to stirring-head loading electric and magnetic oscillation by back of work, then electromagnetic oscillation device and be installed, running gear version flexible design as the case may be, finally will point to the axial high-frequency electromagnetic vibration of stirring-head and import the weld zone by a plane vibration drive link and middle elastic insulator.
Correlative study is the result show, axial vibrational energy significantly improves yield strength, the ultimate tensile strength of welding back member in the welding process, and energy crystal grain thinning, in addition, the axial vibration welding can be played the compacting effect to the metal that plastic flow and dynamic recrystallization take place, when this electric and magnetic oscillation results from back of work, electromagnetic vibration energy can directly import in the weld zone plastic metal, have efficient height, simple in structure flexible, be particularly useful for the application scenario that is difficult in front enforcement or is not easy to stirring-head is transformed; The friction stir processing of this introducing axial vibration mode is applicable to that structural material is to reducing internal stress, improving the application scenario that the processing district combination property has requirements at the higher level.Direction of vibration is during perpendicular to the stirring-head axis direction, vibration has obvious facilitation to the dynamic recrystallization effect and the generation area of crystal grain, can enlarge stirring-head effectively and shear the plastic state range of metal, form the agitating friction district in bigger zone, the stress that helps reducing welding region is concentrated, increase fine grained region, this introducing is particularly useful for the application scenario that structure need increase plasticity and stir the friction zone perpendicular to the friction stir processing of the mode of vibration of stirring-head axis direction.
Electromagnetic vibrator is made up of electromagnet, back-moving spring, armature, insulation and support fixed structure.After electromagnet energising, armature just under the reaction force acts of the attraction of electromagnet or back-moving spring, along the electromagnet axially reciprocating, produces and vibrates.Vibration frequency is relevant with the current work frequency, promptly can change vibration frequency by changing power frequency; The size of electro-magnetic exciting force depends on the current strength size passed through in the electromagnet coil and the characteristic of back-moving spring.Electric and magnetic oscillation can produce the exciting force of 0-50KN usually according to apparatus structure and power frequency difference, selects for use the electromagnetic oscillation device with order of magnitude exciting force to get final product according to actual FSW operating pressure.
Compared with prior art, the present invention has the following advantages:
The present invention transforms friction stir weld device, installed the electromagnetic oscillation device of unique setting additional, the dither of its generation is passed to the weld zone plastic metal by stirring-head with energy, improved welding temperature greatly, and change the plastic flow mode of seam crossing material, increase the plastic deformation of weld zone plastic metal, the thermoplasticity metal is subjected to the compound action of frictional force and dither energy in the rotary course of mixing needle, can effectively improve plastic metal stream flowing velocity, improved appearance of weld efficient and quality, it is tiny to help obtaining crystal grain, the weld seam of even tissue; Simultaneously, this method heats the weld zone metal owing to introducing auxiliary energy, the rapid welding of the low melting point that is beneficial to or light sheet material, also helping the flow of materials with high melting point in the FSW process flows, wherein the electromagnetic vibrator of She Zhiing is made of materials such as ordinary simple electromagnet, springs, have simple in structurely, cost is low, the advantage that is easy to realize; The two kinds of different electromagnetic vibrators of having applied in a flexible way of the present invention simultaneously at different practical situations, are provided with three kinds of different welding manners, have widely applicable advantage.
Description of drawings
Fig. 1 is the structural representation of the electromagnetic vibrating, stirring and friction-welding stirring-head of first kind of structure and second kind of structure in the technical solution of the present invention.
Fig. 2 is the electromagnetic vibrator structural representation of the electromagnetic vibrating, stirring and friction-welding stirring-head of first kind of structure in the technical solution of the present invention.
Fig. 3 is the electromagnetic vibrator structural representation of the electromagnetic vibrating, stirring and friction-welding stirring-head of second kind of structure in the technical solution of the present invention.
Fig. 4 is the plan structure schematic diagram of the electromagnetic vibrating, stirring and friction-welding stirring-head of first kind of structure in the technical solution of the present invention.
Fig. 5 is the structural representation of the electromagnetic vibrating, stirring and friction-welding stirring-head of the third structure in the technical solution of the present invention.
Fig. 6 is a stirring-head direction of vibration schematic diagram.
Wherein, 1, stirring-head body; 2, auxiliary pinching screw; 3, electromagnetic oscillation device; 4, carbon brush; 5, location/hold-down screw; 6, workpiece; 7, middle elastic insulator; 8, copper conducting ring; 9, cambered surface oscillating drive link; 10, cambered plate spring; 11, the fixture that is installed; 12, armature; 13, electromagnet; 14, plane vibration drive link; 15, surface plate spring.Accompanying drawing has only provided a kind of structural representation of the compound FSW of electric and magnetic oscillation, only understands main points of the present invention for helping, and can transform as the case may be when practical application, is not limited thereto structure.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further details.
As Fig. 1, shown in Figure 4, a kind of electromagnetic vibrating, stirring and friction-welding stirring-head, comprise stirring-head body 1, also comprise electromagnetic oscillation device 3, described electromagnetic oscillation device 3 comprises by the fixture 11 that is installed, electromagnet 13, armature 12, the electromagnetic vibrator of the structure as shown in Figure 2 that cambered plate spring 10 and cambered surface oscillating drive link 9 constitute, wherein electromagnet 13 is fixed in the fixture 11 that is installed, the adjacent setting of one end of armature 13 with electromagnet, the other end and cambered plate spring 10 middle parts are connected, the fixture 11 that is installed is fixed at cambered plate spring 10 two ends, one end of cambered surface oscillating drive link 9 is fixedly connected on the cambered plate spring 10 one side opposite with armature 12, and the other end is the cambered surface setting; Described electromagnetic oscillation device also comprises a ring-shaped step that is arranged on the stirring-head body 1, be provided with an annular insulation crust in the upper surface of ring-shaped step correspondence, annular insulation crust inside be provided with said structure electromagnetic vibrator and and the symmetrically arranged balance weight of electromagnetic vibrator, described annular insulation crust is provided with copper conducting ring 8, copper conducting ring 8 inboards are electrically connected with electromagnetic vibrator, the outside slidably is electrically connected with carbon brush 4 on being fixed in the clamping device that soldering tip installs additional, wherein said electromagnetic vibrator horizontally set, the curved end of its cambered surface oscillating drive link 9 is connected with the face of cylinder of stirring-head body 1 by middle elastic insulator 7.
As depicted in figs. 1 and 2, the electromagnetic vibrating, stirring and friction-welding stirring-head of another kind of version, the electromagnetic vibrating, stirring and friction-welding stirring-head of its structure and said structure is roughly the same, its difference is that oscillating drive link described in the described electromagnetic vibrator is a plane vibration drive link 14, one end of plane vibration drive link 14 is fixedly connected on the surface plate spring 15 one side opposite with armature 12, the other end is that the plane is provided with, whole vertical setting of described electromagnetic vibrator, the flat shape end face of its plane vibration drive link 14 is connected with the upper surface of stirring-head body 1 ring-shaped step by middle elastic insulator 7.
As Fig. 3 and shown in Figure 5, another electromagnetic vibrating, stirring and friction-welding stirring-head, comprise stirring-head body 1 and as the electromagnetic vibrator of above-mentioned structure shown in Figure 2, wherein, whole vertical setting of described electromagnetic vibrator, the flat shape end face of its oscillating drive link 14 is crimped on workpiece to be processed 6 back sides and the corresponding position of mixing needle by middle elastic insulator 7.
A kind of electric and magnetic oscillation friction stir welding method, used the electromagnetic vibrating, stirring and friction-welding stirring-head of above-mentioned first kind of version, stirring-head body and the welding of mixing needle rotation carrying out agitating friction when welding, simultaneously, by carbon brush and copper conducting ring electromagnetic vibrator is switched on, make oscillating drive link produce the high-frequency electromagnetic vibration, this electric and magnetic oscillation is vertically imported the face of cylinder of stirring-head through middle elastic insulator, and then introducing friction stir welding process, stirring-head shoulder that driving is rotated at a high speed and mixing needle are done the vibration perpendicular to the stirring-head axis direction, realization passes to the weld zone plastic metal with vibrational energy, make it change plasticity more quickly into and strengthen amount of plastic deformation, realize metal solder.
A kind of electric and magnetic oscillation friction stir welding method, used the electromagnetic vibrating, stirring and friction-welding stirring-head of above-mentioned second kind of version, stirring-head and the welding of mixing needle rotation carrying out agitating friction when welding, simultaneously, by carbon brush and copper conducting ring electromagnetic vibrator is switched on, make oscillating drive link produce the high-frequency electromagnetic vibration, this electric and magnetic oscillation is vertically imported the face of cylinder of stirring-head through middle elastic insulator, and then introducing friction stir welding process, the stirring-head shoulder and the mixing needle that drive rotation are at a high speed done the vibration that is parallel to the stirring-head axis direction, realization passes to the weld zone plastic metal with vibrational energy, make it change plasticity more quickly into and strengthen amount of plastic deformation, realize metal solder.
A kind of electric and magnetic oscillation friction stir welding method, it has used the electromagnetic vibrating, stirring and friction-welding stirring-head of above-mentioned the third version, in common agitating friction welding, described electromagnetic vibrator can be arranged at the back side of workpiece to be welded by the clamping walking mechanism, and the flat shape end face of its oscillating drive link is connected with the back side of workpiece weld by middle elastic insulator, energising produces oscillating drive link and points to the axial high-frequency electromagnetic vibration of stirring-head to electromagnetic vibrator, through middle elastic insulator this electric and magnetic oscillation is imported the friction stir welding process, realization passes to the weld zone plastic metal with vibrational energy, make it change plasticity more quickly into and strengthen amount of plastic deformation, realize metal solder.
Again specifically: be illustrated in figure 1 as directly and load electric and magnetic oscillation by stirring-head, the electromagnetic oscillation device 3 of annular is seen Fig. 4, casing insulation but copper conducting ring 8 is arranged, built-in one or more electromagnetic vibrator (as A, B, C, D position etc. among the figure but be not limited to this 4 positions), and install balance weight additional to guarantee the balance of this device when rotating at a high speed in symmetric position as the case may be.Carbon brush 4 is fixed on the clamping device that soldering tip installs additional, contact all the time with copper conducting ring 8 on the annular vibrating device of rotation, and vibrator is conducted electricity.The electromagnetic oscillation device 3 of annular finally is fixed on the stirring-head by location/hold-down screw 5 and auxiliary pinching screw 2, wherein, is parallel to the stirring-head axis direction if vibration produces, and uses cambered surface oscillating drive link (Fig. 2); If vibration produces perpendicular to this axis direction, use plane vibration drive link (Fig. 3).When pointing to stirring-head loading electric and magnetic oscillation by back of work (Fig. 5), then electromagnetic oscillation device and be installed, running gear version flexible design (schematic diagram does not mark) as the case may be, finally will point to the axial high-frequency electromagnetic vibration of stirring-head and import the weld zone by a plane vibration drive link and middle elastic insulator.After the FSW process began, mixing needle pierced weldment, and metal is subjected to thermal softening under the acting in conjunction of mixing needle and effect of shoulder high speed rotary grinding and dither energy on every side, flow takes place flow, in the seam of mixing needle rear.
Weldment is docked by the face of weld and keeps compressing under oil pressure, air pressure, hydraulic pressure, lever clamp mechanism etc. compress mechanism effect; Electromagnetic oscillation device produces electric and magnetic oscillation and acts on stirring-head, makes it produce dither, and direction of vibration can be vertical (x direction), horizontal (y direction), vertical direction (z direction), sees Fig. 6.
It is compound with conventional stirring-head that the present invention transforms the back in version, fixed position etc. with electromagnetic oscillation device, electric and magnetic oscillation is introduced the weld zone metal to accelerate, to strengthen the flow metal flow to promote welding process, improve welding quality, all the other there is no different with conventional friction stir welding.
Claims (7)
1. electromagnetic vibrating, stirring and friction-welding stirring-head, comprise stirring-head body (1), it is characterized in that, also comprise electromagnetic oscillation device (3), described electromagnetic oscillation device (3) comprises by the fixture that is installed (11), electromagnet (13), armature (12), flat spring (10,15) and oscillating drive link (9,14) electromagnetic vibrator of Gou Chenging, wherein electromagnet (13) is fixed in the fixture that is installed (11), one end of armature (12) and the adjacent setting of electromagnet (13), the other end and flat spring (10,15) middle part is connected, flat spring (10,15) fixture that is installed (11), oscillating drive link (9 are fixed in two ends, 14) a end is fixedly connected on flat spring (10,15) go up and the opposite one side of armature (12).
2. electromagnetic vibrating, stirring and friction-welding stirring-head as claimed in claim 1, it is characterized in that, described electromagnetic oscillation device (3) also comprises a ring-shaped step that is arranged on the stirring-head body (1), be provided with an annular insulation crust in the upper surface of ring-shaped step correspondence, annular insulation crust inside be provided with electromagnetic vibrator and and the symmetrically arranged balance weight of electromagnetic vibrator, described annular insulation crust is provided with copper conducting ring (8), copper conducting ring (8) is inboard to be electrically connected with electromagnetic vibrator, the outside slidably is electrically connected with carbon brush (4) on being fixed in the clamping device that soldering tip installs additional, the end that oscillating drive link in the electromagnetic vibrator (9) is opposite with flat spring (10) is the cambered surface setting, the whole horizontally set of electromagnetic vibrator, the curved end of its oscillating drive link (9) is connected with the face of cylinder of stirring-head body (1) by middle elastic insulator (7).
3. electromagnetic vibrating, stirring and friction-welding stirring-head as claimed in claim 1, it is characterized in that, described electromagnetic oscillation device (3) also comprises a ring-shaped step that is arranged on the stirring-head body (1), be provided with an annular insulation crust in the upper surface of ring-shaped step correspondence, annular insulation crust inside be provided with electromagnetic vibrator and and the symmetrically arranged balance weight of electromagnetic vibrator, described annular insulation crust is provided with copper conducting ring (8), copper conducting ring (8) is inboard to be electrically connected with electromagnetic vibrator, the outside slidably is electrically connected with carbon brush (4) on being fixed in the clamping device that soldering tip installs additional, the end that oscillating drive link in the electromagnetic vibrator (14) is opposite with flat spring (15) is that the plane is provided with, whole vertical setting of electromagnetic vibrator, the flat shape end face of its oscillating drive link (14) is connected with the upper surface of stirring-head body (1) ring-shaped step by middle elastic insulator (7).
4. electromagnetic vibrating, stirring and friction-welding stirring-head as claimed in claim 1, it is characterized in that, the end that oscillating drive link in the described electromagnetic oscillation device (14) is opposite with flat spring (15) is that the plane is provided with, whole vertical setting of electromagnetic vibrator, the flat shape end face of its oscillating drive link (14) is crimped on workpiece to be processed (6) back side and the corresponding position of mixing needle by middle elastic insulator (7).
5. electric and magnetic oscillation friction stir welding method, it is characterized in that having used electromagnetic vibrating, stirring and friction-welding stirring-head as claimed in claim 2, stirring-head and the welding of the rotation carrying out of the mixing needle on it agitating friction when welding, simultaneously, by carbon brush (4) and copper conducting ring (8) electromagnetic vibrator is switched on, make oscillating drive link (9) produce the high-frequency electromagnetic vibration, this electric and magnetic oscillation is vertically imported the face of cylinder of stirring-head through middle elastic insulator (7), and then introducing friction stir welding process, stirring-head step that driving is rotated at a high speed and mixing needle are done the vibration perpendicular to the stirring-head axis direction, realization passes to the weld zone plastic metal with vibrational energy, make it change plasticity more quickly into and strengthen amount of plastic deformation, realize metal solder.
6. electric and magnetic oscillation friction stir welding method, it is characterized in that having used electromagnetic vibrating, stirring and friction-welding stirring-head as claimed in claim 3, stirring-head and the welding of the rotation carrying out of the mixing needle on it agitating friction when welding, simultaneously, by carbon brush (4) and copper conducting ring (8) electromagnetic vibrator is switched on, make oscillating drive link (14) produce the high-frequency electromagnetic vibration, this electric and magnetic oscillation is vertically imported the face of cylinder of stirring-head through middle elastic insulator (7), and then introducing friction stir welding process, the stirring-head step and the mixing needle that drive rotation are at a high speed done the vibration that is parallel to the stirring-head axis direction, realization passes to the weld zone plastic metal with vibrational energy, make it change plasticity more quickly into and strengthen amount of plastic deformation, realize metal solder.
7. electric and magnetic oscillation friction stir welding method, it is characterized in that having used electromagnetic vibrating, stirring and friction-welding stirring-head as claimed in claim 4, in common agitating friction welding, the flat shape end face of oscillating drive link in the described electromagnetic vibrator (14) is connected with the back side of workpiece (6) weld by middle elastic insulator (7), energising produces oscillating drive link (14) and points to the axial high-frequency electromagnetic vibration of stirring-head to electromagnetic vibrator, through middle elastic insulator (7) this electric and magnetic oscillation is imported the friction stir welding process, realization passes to the weld zone plastic metal with vibrational energy, make it change plasticity more quickly into and strengthen amount of plastic deformation, realize metal solder.
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| CN2009101036902A CN101574756B (en) | 2009-04-24 | 2009-04-24 | Electromagnetic vibrating, stirring and friction-welding stirring-head and welding method thereof |
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| CN2009101036902A CN101574756B (en) | 2009-04-24 | 2009-04-24 | Electromagnetic vibrating, stirring and friction-welding stirring-head and welding method thereof |
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| CN101574756B true CN101574756B (en) | 2011-06-08 |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103028838B (en) * | 2012-12-18 | 2014-10-08 | 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 |
| US9987796B2 (en) * | 2013-09-06 | 2018-06-05 | GM Global Technology Operations LLC | Apparatus and methods for joining polymeric composites using a hybrid friction/ultrasound technique for achieving desired weld characteristics |
| CN105397277A (en) * | 2015-12-28 | 2016-03-16 | 哈尔滨工业大学 | Friction stir welding device and method by applying ultrasonic vibration from bottom |
| CN105728934B (en) * | 2016-04-25 | 2018-04-06 | 西安建筑科技大学 | A kind of method of electromagnetism auxiliary friction stir weld device and its crystal grain thinning |
| CN108817645A (en) * | 2018-06-28 | 2018-11-16 | 西京学院 | A kind of spheroidal graphite cast-iron and the lap-welded method of mild steel agitating friction |
| CN108526681B (en) * | 2018-06-28 | 2020-11-24 | 西京学院 | Method for improving tensile-shear strength of ductile cast iron and low-carbon steel lap joint |
| CN111331244B (en) * | 2020-03-19 | 2021-06-15 | 尚良仲毅(沈阳)高新科技有限公司 | Stirring friction bonding composite connection method based on ultrasonic vibration |
| CN111375885B (en) * | 2020-04-29 | 2021-11-05 | 桂林航天工业学院 | Friction stir welding device for 2219 aluminum alloy plate |
| CN113480176B (en) * | 2021-07-29 | 2022-10-21 | 安徽磐盛新型材料科技有限公司 | Preparation device and preparation method of Venus glass dry particles with flashing effect |
| CN113953649B (en) * | 2021-11-18 | 2022-11-25 | 江苏科技大学 | Drawing-back type magnetic field auxiliary stirring friction welding device and mounting and dismounting method |
| CN114769834B (en) * | 2022-03-23 | 2024-04-19 | 江苏科技大学 | Thin-wall metal selective magnetic vibration friction stir welding device and welding method |
| CN114611369B (en) * | 2022-05-10 | 2022-08-19 | 浙江大学 | Multi-physical-field coupled metal ultrasonic welding numerical simulation analysis method |
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