CN113953651B - Magnetization degree adjustable center embedded magnetic type friction stir welding device - Google Patents
Magnetization degree adjustable center embedded magnetic type friction stir welding device Download PDFInfo
- Publication number
- CN113953651B CN113953651B CN202111369891.4A CN202111369891A CN113953651B CN 113953651 B CN113953651 B CN 113953651B CN 202111369891 A CN202111369891 A CN 202111369891A CN 113953651 B CN113953651 B CN 113953651B
- Authority
- CN
- China
- Prior art keywords
- stirring head
- welding
- magnetic
- friction stir
- cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/1245—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
-
- 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
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/1245—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
- B23K20/1255—Tools therefor, e.g. characterised by the shape of the probe
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a magnetization degree adjustable center embedded magnetic type friction stir welding device, which comprises a motor main shaft with a hollow structure, a clamping device, a stirring head, a cooling system and a welding workbench, wherein the stirring head is arranged in a hollow inner cavity of the motor main shaft through the clamping device, a cylindrical strong magnet is filled in a cavity of the stirring head, a shaft shoulder is provided with a hole groove structure, the motor main shaft rotates at a high speed to drive the stirring head filled with the cylindrical strong magnet to rotate, the magnetic field intensity of the shaft shoulder end surface of the magnetic conduction stirring head is changed, a different-name strong magnet is matched in a magnetic conduction backing plate, the magnetic field collection is enhanced in a welding seam to form electromagnetic force, the plastic metal mechanical stirring of a welding area is enhanced, the plastic metal flow is promoted, the grain structure refinement in the friction stir welding process is improved, and the comprehensive performance is remarkably improved.
Description
Technical Field
The invention relates to the field of metal welding processing, in particular to a stirring head for novel friction stir welding and a using technology thereof.
Background
In recent years, with respect to research on the "magnetic control" welding technology under electromagnetic action, researchers at home and abroad have focused their attention on the application of alternating magnetic fields to fusion welding.
Such as: chinese patent CN201820827965.1 discloses an electromagnetic auxiliary friction stir welding device for high melting point alloy, which comprises a current loading unit, a magnetic field loading unit and a friction stir welding unit, wherein the device can locally load high-density pulse current and strong magnetic field to a welding area in a welding process, the friction stir welding unit can realize friction stir welding processing, and the current loading unit and the magnetic field loading unit synchronously move along with a stirring head in the processing process.
Another example is: chinese patent CN201810472656.1 discloses a friction stir welding device under electromagnetic assistance, which comprises a hydraulic driving and controlling unit, a precision mechanical driving and controlling unit, an electromagnetic loading unit, a specimen clamping unit, a signal detecting unit, a specimen protecting unit and a supporting unit. Friction stir welding under electromagnetic assistance can be realized to study the influence of electric fields and magnetic fields on the performance of welding materials.
The above patent mainly controls the magnetic field intensity by applying an induction coil and controlling the alternating current frequency, and the mode needs to add auxiliary devices, increases the difficulty, also puts higher requirements on equipment and has certain limitation.
By reading a great deal of domestic and foreign documents, the application report of the magnetic control welding technology in friction stir welding is very rare. Domestic Wang Hongduo et al propose an electromagnetic auxiliary friction stir welding device and a method for refining grains thereof in a patent (application number: CN 105728934A), but the patent has some problems:
from the aspect of electrical principle analysis, the patent is to add wires at two ends of a weldment to enable direct current to completely pass through a weld zone to be matched with a magnetic field, but in the practical implementation process, the current always flows along the direction with smaller resistance, and the patent does not consider the difference of resistivity between the weld zone and a base material and is not in principle uplink;
from the perspective of magnetic principle analysis, the patent applies homonymous magnetic poles to two ends of a welding seam to generate dense magnetic induction lines on the butt joint surface of the welding seam, but according to the homonymous magnetic poles mutual repulsion principle, the magnetic induction lines are distributed towards two sides more close to a workpiece, so that the gathering effect of magnetic flux in the center of the welding seam is not achieved;
the whole welding operation platform is made of conductive materials, potential safety hazards exist when direct current is conducted in the middle of a workpiece, and a constant magnetic field is applied between direct current wires, so that the wires can generate force in one direction, and the welding seam metal cannot be uniformly stirred.
To sum up: by analysis, the intended result could not be achieved when welding this solution, which was theoretically not feasible.
Therefore, in order to solve the above problems, a new magnetic field assisted friction stir welding device is designed from another innovative point of view, which has very important reference significance for the application and research of the magnetic control welding technology in friction stir welding and has a certain practical significance for production and manufacture.
Disclosure of Invention
In order to solve the technical problem, the application provides a magnetization degree adjustable center embedded magnetic type friction stir welding device: the problems of the prior art that a welding auxiliary device is increased due to the fact that high-density current and a strong magnetic field are locally loaded on a welding area, whether the current reaches a target uniformly due to the difference of resistivity between a welding area and a base metal or not and unsafe factors are generated due to the fact that electric fields are applied to two ends of a workpiece are solved; when in welding, a foreign strong magnet is added below a welding line of a workpiece, so that the problem of poor electromagnetic collection effect is solved.
In order to achieve the above object, the present application is realized by the following technical solutions:
the utility model provides a magnetization degree adjustable center inlays magnetism formula friction stir welding device include: the motor main shaft is hollow structure, the stirring head is installed in the hollow inner cavity of the motor main shaft through the clamping device, the stirring head is made of magnetic conduction materials, and the stirring head comprises: the stirring head comprises a stirring head main body, a shaft shoulder, a stirring pin and a cavity formed in the stirring head main body, wherein a cylindrical strong magnet is filled in the cavity, a downward hole groove structure is formed in the shaft shoulder, and the motor main shaft rotates at a high speed to drive the stirring head filled with the cylindrical strong magnet to rotate at a high speed, so that a variable magnetic field is generated on the end face of the shaft shoulder.
The application is further improved in that: the middle part of the stirring head 3 is provided with a clamping positioning step, a conical surface transition structure is arranged between the shaft shoulder and the stirring head main body, the hole groove structure is a round hole structure which is formed in the shaft shoulder conical table top and has different size and depth, the round hole structure is 1-7 round holes, and when 1 round hole is formed, the position of the shaft shoulder end face, which is not provided with a hole, is different from the round hole material in thickness, so that magnetic flux change is formed.
The application is further improved in that: the stirring head is characterized in that an end cover is arranged on the upper end face of the stirring head, the end cover is matched with the stirring head and the cylindrical strong magnet for use, the end cover is of a cylindrical structure with a clamped concave-convex contact surface, and the end cover is made of screen magnetic materials.
The application is further improved in that: the clamping device is used by matching an ER chuck and an ER chuck locking nut.
The application is further improved in that: the welding workbench includes: the welding support platform and the workpiece placement backing plate are welded, a groove structure is formed in the welding joint of the workpiece, a strong magnetic strip is arranged in the groove structure, and a cover plate flush with the upper surface of the backing plate is arranged on the surface of the strong magnetic strip.
The application is further improved in that: the strong magnetic strip is placed differently from the magnetic pole of the cylindrical strong magnet in the stirring head.
The application is further improved in that: the cooling system comprises a first cooling spraying device, a second cooling spraying device and a cooling cover, wherein the cooling cover is fixed on the cylindrical surface below the stirring head clamping part, the section of the cooling cover is of an opening arc-shaped groove structure, the first cooling spraying device sprays cooling liquid into the opening arc-shaped groove structure to cool the stirring head, and the second cooling spraying device cools the shaft shoulder and the welding seam.
The application is further improved in that: the cooling cover 43 is made of copper, and the end cover 7 is made of stainless steel or titanium alloy.
The application is further improved in that: the cylindrical strong magnet 6 is installed by selecting strong magnets with different intensities to adapt to different welding requirements, or the magnetic field strength at the shaft shoulder is adjusted by regulating and controlling the rotation speed of the motor main shaft 1 through a motor.
The central embedded magnetic type friction stir welding device with the adjustable magnetization degree has the following beneficial effects:
the stirring head shaft shoulder is provided with a hole groove structure, an alternating rotating magnetic field which takes the stirring pin center as the shaft and is distributed in a blocking way is formed based on high rotating speed, a dragging effect is generated on metal in a solid phase welding area, the solid phase welding area is heated, meanwhile, the flow of plastic metal is promoted, macroscopic explanation is that when a closed conductor and a magnetic pole relatively move, electromagnetic resistance is generated between the closed conductor and the magnetic pole, relative movement is hindered, the magnetic plasticity effect and the electric effect of a welding material can be realized without more electromagnetic auxiliary devices, the auxiliary friction stir welding is beneficial to accelerating the plastic deformation of the welding material, the effect of grain refinement is realized, meanwhile, the energy consumption is reduced, and the welding efficiency and the comprehensive performance of a welding joint are remarkably improved;
the powerful magnetic strip is arranged below the magnetic conduction backing plate and is matched with the end face of the magnetic conduction stirring pin to form a heteronymous magnetic pole, so that magnetic force lines are facilitated to converge and pass through a welding core area, the magnetic force lines assist the mechanical stirring action of the stirring head, the rotating magnetic field has the cutting action of magnetic force lines on welding materials, the plastic flow and phase transition temperature of the welding materials in the welding area are improved, the plastic metal mechanical stirring in the welding area is enhanced, the plastic metal flow is promoted, the weld joint structure is more uniform under the magnetic stirring action, the plastic deformation resistance of the materials is reduced, and the weld joint quality is improved.
Changing cylindrical strong magnets with different intensities or calling different motor rotating speeds to realize different magnetic field intensity adjustment; the method has the advantages of quick response of magnetic field energy input, simple overall structure, low cost, good welding effect, green manufacturing and sustainable development mode, and high safety, and is a brand new passive 'magnetic control' welding method;
drawings
FIG. 1 is a schematic view of a magnetization-adjustable center-embedded friction stir welding device.
FIG. 2 is a schematic view of a shaft shoulder
FIG. 3 is a schematic view of a cooling jacket.
Fig. 4 is a schematic diagram of an end cap.
The attached drawings are used for identifying and describing:
the device comprises a motor main shaft, a 2-clamping device, a 21-ER chuck, a 22-ER chuck locking nut, a 3-stirring head, a 31-stirring head main body, a 32-shaft shoulder, a 33-stirring needle, a 34-cavity, a 35-hole groove structure, a 4-cooling system, a 41-first cooling spraying device, a 42-second cooling spraying device, a 43-cooling cover, a 44-opening arc-shaped groove structure, a 5-welding workbench, a 51-welding support platform, a 52-backing plate, a 53-groove structure, a 54-cover plate, a 6-cylinder strong magnet, a 7-end cover and an 8-strong magnetic stripe.
Detailed Description
In order to enhance the understanding of the present application, the present application will be described in further detail with reference to the drawings, and the present embodiment is only for explaining the present application and is not limited to the protection scope of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments obtained by a person skilled in the art without making any inventive effort are within the scope of protection of the present application based on the embodiments in this application.
As shown in fig. 1-4, an embodiment 1 of a magnetization-adjustable center-embedded friction stir welding device of the present application includes a motor spindle 1, a clamping device 2, a stirring head 3, a cooling system 4 and a welding table 5, the motor spindle 1 is of a hollow structure, the stirring head 3 is installed in a hollow inner cavity of the motor spindle 1 through the clamping device 2, the stirring head 3 is made of a magnetic conductive material, and the stirring head 3 includes: the stirring head comprises a stirring head main body 31, a shaft shoulder 32, a stirring pin 33 and a cavity 34 formed in the stirring head main body 31, wherein a cylindrical strong magnet 6 is filled in the cavity 34, a downward hole groove structure 35 is formed in the shaft shoulder 32, and the stirring head 3 filled with the cylindrical strong magnet 6 is driven to rotate at a high speed by the high-speed rotation of the motor main shaft 1, so that a variable magnetic field is generated on the end face of the shaft shoulder 32. The stirring head 3 is filled with a cylindrical strong magnet 6, the shaft shoulder of the stirring head is provided with a hole groove structure and is filled with the cylindrical strong magnet, the magnetic flux difference of each part of the shaft shoulder is obvious, the stirring head generates changing magnetic flux when rotating at high speed, an alternating rotating magnetic field which takes the center of a stirring needle as an axis and is distributed in a blockwise manner is formed, the dragging effect is generated on metal in a solid phase welding area, the solid phase welding area is heated, meanwhile, the flow of plastic metal is promoted, and macroscopic explanation is that electromagnetic resistance is generated between a closed conductor and a magnetic pole when the closed conductor and the magnetic pole move relatively, the relative movement is blocked, the mechanical stirring effect of the stirring needle is enhanced, and the grain refinement of a weld joint tissue is facilitated.
More preferably: the middle part of the stirring head 3 is provided with a clamping positioning step, a conical surface transition structure is arranged between the shaft shoulder 32 and the stirring head main body 31, and the hole groove structure 35 is a round hole structure with different depths and is formed on the conical table top of the shaft shoulder 32. The round hole structure is 1-7 round holes with different sizes and depths; when the stirring head is rotated at a high speed, the magnetic flux difference of each part of the shaft shoulder is obvious, 3 round holes with different depths are formed in the figure, the more the formed holes are, the higher the magnetic flux change frequency is, and the better the grain refining effect is. Holes with different sizes can be formed to achieve the same effect.
More preferably: the end cover 7 is arranged on the upper end face of the stirring head 3, the end cover 7 is matched with the stirring head 3 and the cylindrical strong magnet 6 for use, the end cover 7 is of a cylindrical structure provided with a clamped concave-convex contact surface 71, the end cover 7 is made of screen magnetic materials, and the end cover 7 is made of stainless steel or titanium alloy. The end cover covers the strong magnet and can isolate the magnetic field generated by most of the magnets, so that the motor connected with the motor rotating hollow main shaft 1 can work normally. The concave-convex contact surface of the end cover can be tightly matched with the stirring head, so that the positioning function is realized, and the function of increasing the holding and fixing part can be realized.
More preferably: the clamping device 2 is matched with an ER chuck (21) and an ER chuck locking nut (22). The stirring head is clamped and fixed by the clamping device, so that concentricity of the stirring pin and the motor is ensured.
More preferably: the welding table 5 includes: the welding support platform 51 and the workpiece placing backing plate 52 are welded, a groove structure 53 is formed in the welding joint of the workpiece, the strong magnetic strip 8 is arranged in the groove structure 53, and a cover plate 54 which is flush with the upper surface of the backing plate 52 is arranged on the surface of the strong magnetic strip 8; the strong magnetic strip 8 is arranged differently from the magnetic pole of the cylindrical strong magnet 6 in the stirring head 3. The mounted strong magnetic strip can greatly strengthen the convergence effect of magnetic flux, so that magnetic force lines penetrate through a to-be-welded worker as much as possible, the magnetic force lines assist the mechanical stirring action of the stirring head, the rotating magnetic field has the cutting action of the magnetic force lines on the welding material, the plastic flow and phase transition temperature of the welding area material are improved, and the quality of the welding seam is improved.
More preferably: the cooling system 4 comprises a first cooling spraying device 41, a second cooling spraying device 42 and a cooling cover 43, wherein the cooling cover 43 is fixed on a cylindrical surface below the clamping part of the stirring head 3, the section of the cooling cover 43 is an open arc-shaped groove structure 44, the first cooling spraying device 41 sprays cooling liquid into the open arc-shaped groove structure 44 to cool the stirring head, and the second cooling spraying device 42 cools the shaft shoulder and the welding seam; the cooling jacket 43 is made of copper. In the process of high-speed rotation of the stirring head, the cooling liquid can be directly splashed out due to centrifugal force when in contact with the stirring head, and the cooling effect is poor. The special open arc-shaped groove structural design of the cooling cover can further contact water drops thrown out by centrifugal force with the cooling cover, so that the water drops are prevented from directly splashing, the effect of full cooling is achieved, the welding temperature is prevented from reaching the Curie temperature point of the strong magnet due to good heat conducting performance of copper, and the loss of magnetic field energy is reduced to the maximum extent.
More preferably: the cylindrical strong magnet 6 is installed by selecting strong magnets with different intensities to adapt to different welding requirements, or the magnetic field strength at the shaft shoulder is adjusted by regulating and controlling the rotation speed of the motor main shaft 1 through a motor. The device has the advantages of convenient adjustment of the magnetic field intensity, selection of strong magnets with different intensities according to specific technological parameters, and easy replacement.
More preferred example 2: the shoulder 32 is provided with downward holes and grooves having different depths, such as elliptical holes, elongated holes or other structures, and the other structures are the same as those of embodiment 1.
The main operation steps of the magnetization degree adjustable center embedded magnetic type friction stir welding device are as follows:
SP1: firstly, sleeving a cooling cover 43 on the cylindrical side surface with the largest outer diameter of the magnetic conduction stirring head 3, and then fixing the cooling cover and the cylindrical side surface by adopting a spot welding process;
SP2: filling the prepared cylindrical strong magnet 6 into a hollow cavity of the stirring head 3, and sleeving a clamped concave-convex contact surface 71 of an end cover 7 made of a stainless steel screen magnetic material on a clamping part of the stirring head 3;
SP3: placing the stirring head prepared by SP2 into a hollow cavity of a motor main shaft provided with a clamping device 2, clamping and fixing the stirring head by an ER chuck and an ER nut, and fastening the stirring head on the motor rotary hollow main shaft 1;
SP4: the welding table 5 prepares: the method comprises the steps of installing a strong magnetic strip in a groove of a backing plate, placing the magnetic poles of the installed strong magnetic strip and the magnetic poles of a strong magnet in a spring nest hole in a different mode, then covering the upper part of the strong magnetic strip with an iron cover plate, placing the installed magnetic conduction backing plate on a work support table top, and installing a welding workpiece on the work table top by using a pressing device;
SP5: adjusting the height of the magnetic conduction stirring friction head 7, and editing a required welding program in a CNC control panel; starting a welding workbench, and starting welding; the stirring pin of the stirring head is inserted into the welding seam, the metal around the welding seam is stirred along with the high-speed rotation of the main shaft, and the metal material in the stirred welding seam is promoted to form a compact welding seam through the rolling of the shaft shoulder of the stirring head rotating at high speed.
SP6: when the stirring pin starts to descend and approaches to a welded workpiece, the switch of the first cooling device and the switch of the second cooling device are turned on, the nozzle of the first cooling device is aligned with the cooling cover 43, the nozzle of the second cooling device is aligned with the shaft shoulder position of the magnetic conduction stirring head 3, and the shaft shoulder and weld joint tissues around the shaft shoulder are cooled.
The operation principle of the application is as follows:
because the shaft shoulder of the stirring head is provided with a hole groove structure, the inner cavity is filled with a cylindrical strong magnet, based on the obvious magnetic flux difference of each part of the high-rotation stirring head shoulder, the stirring head generates a changed magnetic flux when rotating at a high speed, an alternating rotating magnetic field which takes the center of a stirring needle as an axis and is distributed in a blocking way is formed, the effect of collecting a static magnetic field formed by strong magnetic strips with different polarities below a welding workbench on an upper magnetic field is matched, more magnetic lines of force of a welding seam generate a high-speed rotating changed magnetic flux at the welding seam of the shaft shoulder, and meanwhile, an alternating pulse electric field is generated at the welding seam, and the dynamic and static magnetic fields generate vortex flow in the plastic deformation process of stirring friction welding metal, the direction of the vortex flow is changed instantaneously along with the direction of the rotating magnetic field, and a larger promotion effect is generated on dislocation movement of a stirring area, so that dynamic recrystallization of crystal grains is aggravated, and the crystal grains are refined; the alternating pulse electric field is applied to the seam of the weldment, the electronic wind force effect is introduced, the influence of the dual effects of instantaneous and electromagnetic auxiliary friction stir welding greatly enhances the strengthening effect of dislocation movement in the metal, the surmounting obstacle of dislocation is greatly reduced, the electromagnetic dual effects can change the solidification condition and the temperature distribution in the solidification process of the metal of the welding seam, improve the structure and the phase structure, promote the grain refinement of the welding seam, reduce the chemical non-uniformity, reduce the defects, reduce the welding energy consumption, improve the welding efficiency and form the welding joint with excellent comprehensive performance.
The embodiments of the present application disclose preferred embodiments, but are not limited thereto, and those of ordinary skill in the art will readily appreciate from the foregoing embodiments that various extensions and modifications may be made without departing from the spirit of the present application, while remaining within the scope of the present invention.
Claims (6)
1. The utility model provides a magnetization degree adjustable center inlays magnetism formula friction stir welding device, includes motor main shaft (1), clamping device (2), stirring head (3), cooling system (4) and weldment work platform (5), motor main shaft (1) is hollow structure, stirring head (3) are installed in the hollow inner chamber of motor main shaft (1) through clamping device (2), its characterized in that: the stirring head (3) is made of magnetic conductive materials, and the stirring head (3) comprises: the stirring head comprises a stirring head main body (31), a shaft shoulder (32), a stirring pin (33) and a cavity (34) formed in the stirring head main body (31), wherein a cylindrical strong magnet (6) is filled in the cavity (34), a downward hole groove structure (35) is formed in the shaft shoulder (32), and the motor main shaft (1) rotates at a high speed to drive the stirring head (3) filled with the cylindrical strong magnet (6) to rotate at a high speed, so that a variable magnetic field is generated on the end face of the shaft shoulder (32); the middle part of the stirring head (3) is provided with a clamping and positioning step, a conical surface transition structure is arranged between the shaft shoulder (32) and the stirring head main body (31), and the hole groove structure (35) is a round hole structure with different depths and is formed in a conical table top of the shaft shoulder (32); the welding workbench (5) comprises: the welding support platform (51) and the workpiece placing base plate (52), wherein the base plate (52) is provided with a groove structure (53) at the welding joint of the workpiece, the groove structure (53) is internally provided with a strong magnetic stripe (8), and the surface of the Jiang Citiao (8) is provided with a cover plate (54) which is flush with the upper surface of the base plate (52); the magnetic poles of the Jiang Citiao (8) and the cylindrical strong magnet (6) in the stirring head (3) are placed differently.
2. The magnetization-adjustable center-embedded friction stir welding device according to claim 1, wherein: the stirring head is characterized in that an end cover (7) is arranged on the upper end face of the stirring head (3), the end cover (7) is matched with the stirring head (3) and the cylindrical strong magnet (6), the end cover (7) is of a cylindrical structure provided with a clamped concave-convex contact surface (71), and the end cover (7) is made of screen magnetic materials.
3. The magnetization-adjustable center-embedded friction stir welding device according to claim 1, wherein: the clamping device (2) is matched with the ER chuck (21) and the ER chuck locking nut (22).
4. The magnetization-adjustable center-embedded friction stir welding device according to claim 1, wherein: the cooling system (4) comprises a first cooling spraying device (41), a second cooling spraying device (42) and a cooling cover (43), wherein the cooling cover (43) is fixed on a cylindrical surface below the clamping part of the stirring head (3), the section of the cooling cover (43) is an open arc-shaped groove structure (44), the first cooling spraying device (41) sprays cooling liquid into the open arc-shaped groove structure (44) to cool the stirring head, and the second cooling spraying device (42) cools the shaft shoulder and the welding seam; the cooling cover (43) is made of copper.
5. The magnetization-adjustable center-embedded friction stir welding device according to claim 2, wherein: the end cover (7) is made of stainless steel or titanium alloy.
6. The magnetization-adjustable center-embedded friction stir welding device according to claim 1, wherein: the cylindrical strong magnet (6) is installed by selecting strong magnets with different intensities to meet different welding requirements, or the magnetic field strength at the shaft shoulder is adjusted by regulating and controlling the rotation speed of the motor main shaft (1) through a motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111369891.4A CN113953651B (en) | 2021-11-18 | 2021-11-18 | Magnetization degree adjustable center embedded magnetic type friction stir welding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111369891.4A CN113953651B (en) | 2021-11-18 | 2021-11-18 | Magnetization degree adjustable center embedded magnetic type friction stir welding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113953651A CN113953651A (en) | 2022-01-21 |
| CN113953651B true CN113953651B (en) | 2023-06-23 |
Family
ID=79471277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111369891.4A Active CN113953651B (en) | 2021-11-18 | 2021-11-18 | Magnetization degree adjustable center embedded magnetic type friction stir welding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113953651B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004160475A (en) * | 2002-11-11 | 2004-06-10 | Mitsubishi Heavy Ind Ltd | Friction stir welding apparatus using bobbin tool, and its welding method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100544882B1 (en) * | 2003-07-01 | 2006-01-24 | 재단법인 포항산업과학연구원 | Tool, apparatus and method for welding workpieces |
| JP2008115285A (en) * | 2006-11-06 | 2008-05-22 | Mazda Motor Corp | Method for joining metal member and apparatus therefor |
| 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 |
| 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 |
| CN208787747U (en) * | 2018-06-06 | 2019-04-26 | 上海工程技术大学 | A kind of floating type double static shaft shoulder stirring-heads |
| CN111618418A (en) * | 2020-06-05 | 2020-09-04 | 苏州市永创金属科技有限公司 | Robot friction stir welding device for realizing flexible transformation of welding thickness |
-
2021
- 2021-11-18 CN CN202111369891.4A patent/CN113953651B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004160475A (en) * | 2002-11-11 | 2004-06-10 | Mitsubishi Heavy Ind Ltd | Friction stir welding apparatus using bobbin tool, and its welding method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113953651A (en) | 2022-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113953651B (en) | Magnetization degree adjustable center embedded magnetic type friction stir welding device | |
| CN109128502B (en) | Device and method for synchronously assisting laser welding through rotating electromagnetic field | |
| CN105728934B (en) | A kind of method of electromagnetism auxiliary friction stir weld device and its crystal grain thinning | |
| CN113953646B (en) | Magnetic field adjustable block rotating magnetic field auxiliary static shaft shoulder stirring friction device | |
| CN103741138B (en) | Static magnetic field-laser coaxial composite fusion covering method and device | |
| CN103781582B (en) | To become overall magnetic field welded corner joint parts to the arc stud welding method of surface of the work and device | |
| CN111188036B (en) | Alternating magnetic field assisted laser remanufacturing method under inclined angle | |
| CN108273980B (en) | Method for producing composite roller by preheating consumable electrode electroslag remelting | |
| CN113953645B (en) | Magnetization degree adjustable elastic nest type magnetic embedding friction stir welding device | |
| CN105396686B (en) | Mine concentration equipment | |
| CN113146021B (en) | Additive manufacturing device and manufacturing method based on hot wire friction micro-forging | |
| KR20040008085A (en) | High frequency induction heating coil | |
| CN106670664A (en) | Magnetic field intensity adjusting device for assisting laser and arc hybrid welding | |
| CN113927154B (en) | Magnetization degree adjustable externally attached magnetic lug type friction stir welding device | |
| CN113953650B (en) | Magnetic ear embedded type friction stir welding device with adjustable magnetization degree | |
| CN1641976A (en) | Coil heating method and device | |
| CN1250362C (en) | Method and device for producing a metal strip in a strip casting machine with rolls | |
| CN113953647B (en) | Magnetization type friction stir processing device and welding method thereof | |
| CN110527999A (en) | A kind of impulse electric field-travelling-magnetic-field complex method reducing re-melt deposit welding | |
| CN107675173A (en) | Laser cladding method and device based on clamping electrified regulation and rotating electric field stirring | |
| CN2680398Y (en) | Random heat treatment device for linear friction welding joint | |
| CN110527998A (en) | A kind of class seam weld-travelling-magnetic-field complex method improving defects in cladding layer | |
| CN108247021B (en) | Electroslag remelting device and method for producing composite roller by preheating consumable electrode | |
| CN207498471U (en) | Laser cladding apparatus based on clamping electrified regulation and rotating electric field stirring | |
| DE10154100B4 (en) | Device for heating a bore, and use of a device for heating a bore |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |