CN110977139A - Friction stir welding device - Google Patents
Friction stir welding device Download PDFInfo
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- CN110977139A CN110977139A CN201911252074.3A CN201911252074A CN110977139A CN 110977139 A CN110977139 A CN 110977139A CN 201911252074 A CN201911252074 A CN 201911252074A CN 110977139 A CN110977139 A CN 110977139A
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- stirring
- friction stir
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- stir welding
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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
- B23K20/12—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
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Abstract
The invention provides a friction stir welding device, which relates to the technical field of friction stir welding and comprises an axial displacement driving device, a rotary driving device and a stirring head kit, wherein the stirring head kit comprises a stirring needle and a shaft shoulder arranged outside the stirring needle; the stirring pin is connected with the shaft shoulder in a sliding manner; the rotary driving device is connected with the stirring pin and the shaft shoulder and is used for driving the stirring pin and the shaft shoulder to rotate; and the axial displacement driving device is connected with the stirring pin and is used for driving the stirring pin to axially move. According to the friction stir welding device provided by the invention, the stirring pin and the shaft shoulder are arranged into a split structure, the stirring pin and the shaft shoulder are in sliding connection, and the axial movement of the stirring pin and the high-speed rotation movement of the stirring pin and the shaft shoulder are respectively controlled, so that a keyhole is prevented from being generated in a welding line, and the connection strength and the attractiveness of the welding line are improved.
Description
Technical Field
The invention relates to the technical field of friction stir welding, in particular to a friction stir welding device.
Background
Friction stir welding is a solid-phase welding technique which has been rapidly developed in recent years, and welds workpieces by using frictional heat and plastic deformation heat as welding heat sources.
In the friction stir welding process, a cylindrical stirring pin or a stirring pin with other shapes (such as a threaded cylinder) extends into a joint of a workpiece, and the stirring pin is rubbed with the material of the workpiece to be welded through high-speed rotation of a stirring head, so that the temperature of the material at the joint part is increased and softened, and meanwhile, the material is stirred and rubbed to complete welding.
In the welding process, a workpiece to be welded is fixed on the rigid back cushion, the stirring pin extends into a joint of the workpiece while rotating, friction heat between the stirring head (mainly a shaft shoulder) and the workpiece causes the material in front of the stirring head to generate strong plastic deformation, and then the material with high plastic deformation is gradually deposited behind the stirring head along with the movement of the stirring head, so that a friction stir welding seam is formed.
After welding, the existing friction stir welding device can form a keyhole at a welding seam on a workpiece along with the separation of a stirring pin from the workpiece, the existence of the keyhole seriously influences the mechanical property and the attractiveness of the welding seam, and the application of friction stir welding is greatly limited.
Disclosure of Invention
The invention solves the problem that a keyhole exists at a welding seam after the welding of the conventional friction stir welding device is finished.
In order to solve the above problems, the present invention provides a friction stir welding device, comprising an axial displacement driving device, a rotation driving device, and a stirring head kit, wherein,
the stirring head sleeve comprises a stirring pin and a shaft shoulder arranged outside the stirring pin; the stirring pin is connected with the shaft shoulder in a sliding manner;
the rotary driving device is connected with the stirring pin and the shaft shoulder and is used for driving the stirring pin and the shaft shoulder to rotate;
and the axial displacement driving device is connected with the stirring pin and is used for driving the stirring pin to axially move.
Optionally, the stirring head kit further comprises a spline shaft, and the bottom end of the spline shaft is fixedly connected with the stirring pin; the top end of the spline shaft is in bearing connection with the axial displacement driving device.
Optionally, the rotary drive comprises a hollow electric spindle; the spline shaft is arranged inside the hollow electric spindle, the hollow electric spindle is connected with the spline shaft through a spline, and the hollow electric spindle and the spline shaft are in sliding connection along the axial direction of the hollow electric spindle; the shaft shoulder is fixedly connected with the hollow electric main shaft.
Optionally, the mixing head kit further comprises a shaft shoulder fixing block, and the shaft shoulder is connected with the hollow electric spindle through the shaft shoulder fixing block.
Optionally, the axial displacement driving device comprises an electric cylinder, and the top end of the spline shaft is connected with an output rod of the electric cylinder through a bearing seat connecting piece.
Optionally, the bearing seat connecting piece includes a bearing seat and a bearing arranged in the bearing seat, wherein the bearing seat is fixedly connected with an output rod of the electric cylinder, and the top end of the spline shaft is fixedly connected with the bearing.
Optionally, the bearing seat comprises an upper bearing seat and a lower bearing seat, and the upper bearing seat is fixedly connected with an output rod of the electric cylinder; the bearing is arranged in the lower bearing seat, and the upper bearing seat is connected with the lower bearing seat through a bearing seat tensioning bolt.
Optionally, the spline shaft and the bearing are connected by a nut.
Optionally, the bearing is an angular contact bearing.
Optionally, the device further comprises a base, and the rotary driving device is mounted on the base; the top of frame is provided with electronic jar and props the seat, axial displacement drive arrangement pass through electronic jar prop the seat with frame fixed connection.
Compared with the prior art, the friction stir welding device provided by the invention has the following advantages:
according to the friction stir welding device provided by the invention, the stirring pin and the shaft shoulder are arranged into a split structure, the stirring pin is in sliding connection with the shaft shoulder, and in the welding process, the heat input quantity of two metals in the welding process is respectively controlled by respectively controlling the time of the stirring pin and the time of the shaft shoulder acting on the two metals to be welded, so that the two metals are connected in a thermoplastic state at the same time; in addition, in the process of withdrawing the stirring pin from the metal, the axial movement of the stirring pin and the high-speed rotation movement of the stirring pin and the shaft shoulder are respectively controlled, so that the molding metal is backfilled into the keyhole left by withdrawing the stirring pin, the keyhole is prevented from being generated in the welding line, and the connection strength and the attractiveness of the welding line are improved.
Drawings
FIG. 1 is a schematic view of a friction stir welding apparatus according to the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B;
FIG. 4 is a schematic view of a friction stir welding apparatus according to the present invention.
Description of reference numerals:
1-an electric cylinder; 11-an output rod; 12-a bearing housing connection; 121-a bearing seat; 1211-upper bearing seat; 1212-lower bearing seat; 1213-bearing block tie bolts; 122-a bearing; 123-nut; 2-hollow electric main shaft; 3-sleeving the stirring heads; 31-a stirring pin; 32-shaft shoulder; 33-a splined shaft; 34-shaft shoulder fixing block; 4-a machine base; 41-electric cylinder support seat.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In order to solve the problem that a keyhole is left at a welding seam after the current friction stir welding device is used for welding, the invention provides a friction stir welding device, which is shown in figures 1 and 2 and comprises an axial displacement driving device, a rotary driving device and a stirring head kit 3, wherein the stirring head kit 3 is used for contacting with a workpiece in the welding process to weld the workpiece; specifically, the stirring head kit 3 includes a stirring pin 31, and a shaft shoulder 32 disposed outside the stirring pin 31; the stirring pin 31 is connected with the shaft shoulder 32 in a sliding way; the rotary driving device is connected with the stirring pin 31 and the shaft shoulder 32 and is used for driving the stirring pin 31 and the shaft shoulder 32 to rotate; the axial displacement driving device is connected with the stirring pin 31 and is used for driving the stirring pin 31 to move axially.
In the welding process by using the friction stir welding device provided by the application, the stirring pin 31 and the shaft shoulder 32 are driven to rotate at a high speed by the rotation driving device, and meanwhile, the stirring pin 31 is driven to move axially by the axial displacement driving device; the axial movement in the present application specifically refers to movement along the axial direction of the stirring pin 31; because the stirring pin 31 and the shaft shoulder 32 are designed in a split manner and are in sliding connection, the stirring pin 31 and the shaft shoulder 32 can be controlled to move relatively in the axial direction in the welding process, and therefore the time of the stirring pin 31 and the shaft shoulder 32 acting on a workpiece is controlled, and a keyhole is prevented from being left on a weld seam.
Specifically, the friction stir welding device can weld the workpiece by the following method, so that keyhole generation on a welding seam is avoided:
s1: at the beginning of welding, two different metal plates are clamped, wherein high-melting-point metal is on the upper layer, low-melting-point metal is on the lower layer, and the stirring pin 31 is flush with the lower end face of the shaft shoulder 32;
s2: in the upper-layer metal softening stage, the stirring needle 31 and the shaft shoulder 32 are driven to synchronously rotate at high speed by the rotary driving device, the stirring needle 31 and the shaft shoulder 32 are integrally descended, when the lower end surfaces of the stirring needle 31 and the shaft shoulder 32 are contacted with the upper-layer high-melting-point metal and pressed downwards by a certain amount, the upper-layer high-melting-point metal is softened by friction heat, and because the stirring needle 31 does not extend out, the lower-layer low-melting-point metal is only subjected to a certain amount of heat conduction of the upper-layer high-melting-point metal, which is equivalent to preheating the lower-layer low;
s3: when the stirring pin 31 enters the lower-layer metal stage, after the upper-layer high-melting-point metal is heated to be in a thermoplastic state, the stirring pin 31 is driven by the axial displacement driving device to extend out of the shaft shoulder 32 and be inserted into the lower-layer low-melting-point metal, and the lower-layer low-melting-point metal is subjected to the violent stirring friction action of the stirring pin 31, so that the heat is increased steeply and is in a thermoplastic state;
s4: in the plastic metal flowing and mixing stage, after the step S3 is maintained for a certain time, due to the stirring and upsetting action of the stirring pin 31 and the shaft shoulder 32, the upper-layer high-melting-point metal and the lower-layer low-melting-point metal are subjected to sufficient plastic flowing and mixing; the step can also prevent the lower-layer low-melting-point metal from overheating by adding cooling water or other forced cooling modes;
s5: in the pin withdrawing stage, in the step S4, the two metals are sufficiently plastically fluidized and mixed, at this time, the pin 31 is driven to withdraw by the axial displacement driving device until the pin returns to the state of the step S2, and the pressure is maintained for a certain time, and in the process of withdrawing the pin 31 from the metal, the plastic metal is continuously extruded by the shoulder 32, so that the plastic metal is backfilled into the keyhole left by withdrawing the pin 31;
s6: at the end of welding, the pin 31 and the shoulder 32 are lifted away from the workpiece, the high melting point metal and the low melting point metal form a keyhole-free firm friction stir welding spot welding head, and the spot welding process is finished.
According to the friction stir welding device provided by the application, the stirring pin 31 and the shaft shoulder 32 are arranged to be of a split structure, the stirring pin 31 and the shaft shoulder 32 are connected in a sliding manner, and in the welding process, the heat input quantity of two metals in the welding process is controlled respectively by controlling the time of the stirring pin 31 and the time of the shaft shoulder 32 acting on the two metals to be welded respectively, so that the two metals are connected in a thermoplastic state at the same time; in addition, in the process that the stirring pin 31 withdraws from the metal, the axial movement of the stirring pin 31 and the high-speed rotation movement of the stirring pin 31 and the shaft shoulder 32 are respectively controlled, so that the shaped metal is backfilled into the keyhole left by withdrawing the stirring pin 31, the keyhole is prevented from being generated in the welding seam, and the connection strength and the attractiveness of the welding seam are improved.
In order to connect the stirring pin 31 with the axial displacement driving device, referring to fig. 2, the stirring head kit 3 in the present application further includes a spline shaft 33, and the bottom end of the spline shaft 33 is fixedly connected with the stirring pin 31; the top end of the spline shaft 33 is bearing-connected to the axial displacement drive.
The axial displacement driving device is used for providing axial displacement in the welding process; the top end of the spline shaft 33 is connected with the axial displacement driving device, the bottom end of the spline shaft is connected with the stirring pin 31, and the spline shaft 33 is driven to move up and down along the axial direction of the stirring pin 31 through the operation of the axial displacement driving device in the welding process; the spline shaft 33 moves up and down and drives the agitating pin 31 connected thereto to move up and down.
Because the stir welding device welds the workpiece through the high-speed rotation of the stirring pin 31 and the shaft shoulder 32, in order to enable the stirring pin 31 to rotate at a high speed while moving up and down, the top end of the spline shaft 33 is in bearing connection with the axial displacement driving device in the application, so that the spline shaft 33 can rotate at a high speed under the driving of the rotation driving device while moving up and down.
The rotary driving device is used for driving the stirring needle 31 and the shaft shoulder 32 to rotate at a high speed, and comprises a hollow electric main shaft 2 in order to ensure the large rotating speed and the large torque required in the friction stir welding process; the hollow electric main shaft 2 is of a hollow structure, and the spline shaft 33 is arranged inside the hollow electric main shaft 2; the hollow electric spindle 2 is connected with the spline shaft 33 through a spline; specifically, the outer wall of the spline shaft 33 is provided with an external spline, and the inner wall of the hollow electric spindle 2 is provided with an internal spline matched with the external spline on the outer wall of the spline shaft 33; the spline connection between the hollow electric spindle 2 and the spline shaft 33 is realized through the matching of the internal spline and the external spline, so that the spline shaft 33 is driven to rotate while the hollow electric spindle 2 rotates, and the high-speed rotation of the stirring pin 33 connected with the spline shaft 33 is realized through the rotation of the spline shaft 33; in order to improve the stability of the rotation process of the hollow electric spindle 2 and the spline shaft 33, the position of the shaft center of the spline shaft 33 is preferably overlapped with the position of the shaft center of the hollow electric spindle 2, so that the coaxial rotation of the hollow electric spindle and the spline shaft is realized.
The hollow electric spindle 2 and the spline shaft 33 are connected in a sliding mode along the axial direction of the hollow electric spindle 2; namely, the inner spline on the inner wall of the hollow electric main shaft 2 and the outer spline on the outer wall of the spline shaft 33 can slide along the axial direction of the hollow electric main shaft 2; for facilitating the axial sliding between the hollow electric spindle 2 and the spline shaft 33, the connection surface of the internal spline and the external spline is preferably a mirror surface.
Further, the shaft shoulder 32 is fixedly connected with the hollow electric spindle 2, so that the hollow electric spindle 2 rotates at a high speed and the shaft shoulder 32 is driven to rotate at a high speed. Since the hollow electric spindle 2 is connected to the spline shaft 33 by the spline and the spline shaft 33 is fixedly connected to the probe 31, the shoulder 32 and the probe 31 can be simultaneously driven to rotate at high speed during the high-speed rotation of the hollow electric spindle 2.
In order to improve the connection strength between the shaft shoulder 32 and the hollow electric spindle 2, the stirring head kit 3 further comprises a shaft shoulder fixing block 34, and the shaft shoulder 32 is connected with the hollow electric spindle 2 through the shaft shoulder fixing block 34. The connection mode of the shaft shoulder fixing block 34 and the hollow electric spindle 2 and the connection mode of the shaft shoulder fixing block 34 and the shaft shoulder 32 can be both welding connection and connection through a fastener; for the convenience of disassembly and assembly, the shaft shoulder fixing block 34 is preferably connected with the hollow electric spindle 2 through a fastener.
Through setting up shaft shoulder fixed block 34 for shaft shoulder 32 links to each other with hollow electricity main shaft 2 through changing shaft shoulder fixed block 34, when improving shaft shoulder 32 and hollow electricity main shaft 2's joint strength, still be favorable to coming the distance between the lower terminal surface of shaft shoulder 32 and hollow electricity main shaft 2's the lower terminal surface to adjust through this shaft shoulder fixed block 34, thereby make this friction stir welding device be applicable to and weld the work piece of different specifications, enlarged this friction stir welding device's range of application.
The axial displacement driving device is used for carrying out axial motion for the stirring needle 31, and in order to ensure that the driving force when the stirring needle 31 moves axially is large enough, the axial displacement driving device preferably comprises an electric cylinder 1, and the top end of a spline shaft 33 is connected with an output rod 11 of the electric cylinder 1 through a bearing seat connecting piece 12.
Through regard as axial displacement drive arrangement with electronic jar 1, be favorable to increasing the drive power when stirring needle 31 axial motion to can solve because of the plastic metal fills the stirring needle 31 that leads to between stirring needle 31 and shaft shoulder 32 and is died the unable problem of removing by the stopper, guarantee friction stir welding device's normal operating.
Connecting the top end of the spline shaft 33 with the output rod 11 of the electric cylinder 1 through a bearing seat connecting piece 12 to realize the bearing connection of the spline shaft 33 and the output rod 11; specifically, the bearing seat connecting member 12 includes a bearing seat 121 and a bearing 122 disposed in the bearing seat 121, wherein the bearing seat 121 is fixedly connected to the output rod 11 of the electric cylinder 1, and the top end of the spline shaft 33 is fixedly connected to the bearing 122.
In the operation process of the friction stir welding device, the hollow electric spindle 2 rotates at a high speed and simultaneously drives the spline shaft 33 connected with the hollow electric spindle 2 through the spline to rotate at a high speed; meanwhile, as the top end of the spline shaft 33 is connected with the output rod 11 through the bearing connecting piece 12, the electric cylinder 1 operates to drive the spline shaft 33 to axially move along the axial direction of the hollow electric spindle 2; therefore, the spline shaft 33 is driven by the hollow electric spindle 2 and the electric cylinder 1 simultaneously in the operation process; because the spline shaft 33 is connected with the hollow electric spindle 2 in an axial sliding manner, when the spline shaft 33 is driven by the electric cylinder 1 in a high-speed rotation process, the spline shaft can rotate in the hollow electric spindle 2 and move along the axial direction of the hollow electric spindle 2; similarly, because the top end of the spline shaft 33 is connected with the output rod 11 through a bearing, when the spline shaft 33 is driven by the hollow electric spindle 2 in the process of moving along the axial direction of the hollow electric spindle 2, the rotation can be realized through the bearing, so that the spline shaft 33 can rotate at high speed in the hollow electric spindle 2, and can move along the axial direction of the hollow electric spindle 2, namely, the rotation and the axial movement of the spline shaft 33 can be respectively controlled, and further, in the welding process, the feeding of the stirring pin 31 can be accurately controlled while the stirring pin 31 and the shaft shoulder 32 rotate at high speed, so that a keyhole can be avoided from being left in a welding seam, the feeding of the stirring pin 31 can be controlled, the stirring friction welding device can be used for welding various metals, and the application range of the stirring friction welding device can be enlarged.
Specifically, referring to fig. 3, in the present application, the bearing block 121 includes an upper bearing block 1211 and a lower bearing block 1212, wherein the upper bearing block 1211 is fixedly connected to the output rod 11 of the electric cylinder 1; bearing 122 is disposed within lower bearing block 1212, and upper bearing block 1211 is connected to lower bearing block 1212 by bearing block tie bolts 1213.
The bearing seat 121 is connected with the upper bearing seat 1211 and the lower bearing seat 1212, so that the difficulty in assembling and disassembling the friction stir welding device is reduced.
In order to enable the spline shaft 33 to move along the axial direction of the hollow electric spindle 2 while rotating at a high speed, the spline shaft 33 is fixedly connected with the bearing 33 arranged in the lower bearing block 1212; in which the spline shaft 33 and the bearing 122 are connected by the nut 123, as shown in fig. 3, after the bearing 122 is installed in the lower bearing housing 1212 by providing a thread at the top end of the spline shaft 33, and after the spline shaft 33 passes through the bearing 122, the corresponding nut 123 is installed at the top end of the spline shaft 33, and the spline shaft 33 is fixed in the lower bearing housing 1212 by pressing the bearing 122 with the nut 123.
The preferred bearing 122 herein is an angular contact bearing.
In order to fix the rotation driving device and the axial displacement driving device conveniently, referring to fig. 1 and 4, the friction stir welding device provided by the application further comprises a machine base 4, wherein the rotation driving device is arranged on the machine base 4; the top of the machine base 4 is provided with an electric cylinder support seat 41, and the axial displacement driving device is fixedly connected with the machine base 4 through the electric cylinder support seat 41.
For the purpose of the present application, the hollow electric spindle 2 is mounted on the machine base 4; the top of frame 4 is provided with electronic jar and props seat 41, and electronic jar 1 props seat 41 and frame 4 fixed connection through electronic jar.
The friction stir welding device provided by the invention has the advantages of small number of parts, simple structure, high reliability, low failure rate in the operation process and easiness in disassembly and assembly for maintenance; through mutually supporting between hollow electricity main shaft 2, integral key shaft 33 and the electronic jar 1, can realize the relative axial motion of stirring needle 31 and shaft shoulder 32 at stirring needle 31 and the high-speed rotatory in-process of shaft shoulder 32, be convenient for control and control accuracy height can avoid leaving the key hole in the welding seam through the accurate relative axial motion to stirring needle 31 and shaft shoulder 32 to improve welding quality.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and such changes and modifications will fall within the scope of the present invention.
Claims (10)
1. A friction stir welding device, comprising an axial displacement drive device, a rotational drive device, and a stir head assembly (3),
the stirring head kit (3) comprises a stirring needle (31) and a shaft shoulder (32) arranged outside the stirring needle (31); the stirring needle (31) is connected with the shaft shoulder (32) in a sliding manner;
the rotary driving device is connected with the stirring pin (31) and the shaft shoulder (32) and is used for driving the stirring pin (31) and the shaft shoulder (32) to rotate;
the axial displacement driving device is connected with the stirring needle (31) and used for driving the stirring needle (31) to axially move.
2. The friction stir welding device of claim 1 wherein the stir head assembly (3) further comprises a spline shaft (33), a bottom end of the spline shaft (33) being fixedly connected to the stir pin (31); the top end of the spline shaft (33) is in bearing connection with the axial displacement driving device.
3. A friction stir welding apparatus as defined in claim 2 wherein said rotary drive means comprises a hollow motorized spindle (2); the spline shaft (33) is arranged inside the hollow electric spindle (2), the hollow electric spindle (2) is connected with the spline shaft (33) through a spline, and the hollow electric spindle (2) is connected with the spline shaft (33) in a sliding mode along the axial direction of the hollow electric spindle (2); the shaft shoulder (32) is fixedly connected with the hollow electric spindle (2).
4. The friction stir welding device according to claim 3, wherein the pin assembly (3) further comprises a shoulder anchor (34), and the shoulder (32) is connected to the hollow spindle (2) via the shoulder anchor (34).
5. The friction stir welding apparatus according to claim 2 wherein said axial displacement drive means comprises an electric cylinder (1), and the top end of said spline shaft (33) is connected to the output rod (11) of said electric cylinder (1) through a bearing housing connection member (12).
6. The friction stir welding device according to claim 5, wherein the bearing housing connection member (12) comprises a bearing housing (121), a bearing (122) disposed in the bearing housing (121), wherein the bearing housing (121) is fixedly connected to the output rod (11) of the electric cylinder (1), and the top end of the spline shaft (33) is fixedly connected to the bearing (122).
7. The friction stir welding device according to claim 6, wherein the bearing housing (121) comprises an upper bearing housing (1211) and a lower bearing housing (1212), the upper bearing housing (1211) being fixedly connected to the output rod (11) of the electric cylinder (1); the bearing (122) is arranged in the lower bearing seat (1212), and the upper bearing seat (1211) is connected with the lower bearing seat (1212) through a bearing seat tensioning bolt (1213).
8. Friction stir welding device according to claim 6, characterized in that the splined shaft (33) is connected to the bearing (122) by means of a nut (123).
9. The friction stir welding apparatus of claim 6 wherein the bearing (122) is an angular contact bearing.
10. The friction stir welding apparatus according to any one of claims 1 to 9, further comprising a frame (4), wherein said rotational driving means is mounted on said frame (4); the top of frame (4) is provided with electronic jar and props seat (41), axial displacement drive arrangement pass through electronic jar prop seat (41) with frame (4) fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911252074.3A CN110977139A (en) | 2019-12-09 | 2019-12-09 | Friction stir welding device |
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| CN201911252074.3A CN110977139A (en) | 2019-12-09 | 2019-12-09 | Friction stir welding device |
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| CN110977139A true CN110977139A (en) | 2020-04-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112207422A (en) * | 2020-09-14 | 2021-01-12 | 湖南坤鼎数控科技有限公司 | Laminated packaging hardware based on stirring welding |
| CN112453681A (en) * | 2020-10-22 | 2021-03-09 | 北京工业大学 | Retractable friction stir welding electric spindle |
| CN112548317A (en) * | 2020-12-09 | 2021-03-26 | 江苏科技大学 | High-rotation-speed stirring friction adjusting method with adjustable axial force of stirring pin and welding tool |
-
2019
- 2019-12-09 CN CN201911252074.3A patent/CN110977139A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112207422A (en) * | 2020-09-14 | 2021-01-12 | 湖南坤鼎数控科技有限公司 | Laminated packaging hardware based on stirring welding |
| CN112453681A (en) * | 2020-10-22 | 2021-03-09 | 北京工业大学 | Retractable friction stir welding electric spindle |
| CN112453681B (en) * | 2020-10-22 | 2022-06-14 | 北京工业大学 | Retractable friction stir welding electric spindle |
| US11897049B2 (en) | 2020-10-22 | 2024-02-13 | Beijing University Of Technology | Retractable friction stir welding spindle |
| CN112548317A (en) * | 2020-12-09 | 2021-03-26 | 江苏科技大学 | High-rotation-speed stirring friction adjusting method with adjustable axial force of stirring pin and welding tool |
| CN112548317B (en) * | 2020-12-09 | 2022-04-22 | 江苏科技大学 | High-rotation-speed stirring friction adjusting method with adjustable axial force of stirring pin and welding tool |
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