CN109570739B - Novel device for controlling friction stir welding deformation - Google Patents
Novel device for controlling friction stir welding deformation Download PDFInfo
- Publication number
- CN109570739B CN109570739B CN201910111586.1A CN201910111586A CN109570739B CN 109570739 B CN109570739 B CN 109570739B CN 201910111586 A CN201910111586 A CN 201910111586A CN 109570739 B CN109570739 B CN 109570739B
- Authority
- CN
- China
- Prior art keywords
- square groove
- friction stir
- controller
- wire
- stir welding
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- 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.)
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- 238000003466 welding Methods 0.000 title claims abstract description 49
- 238000003756 stirring Methods 0.000 title claims abstract description 27
- 239000002184 metal Substances 0.000 claims abstract description 33
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 32
- 229910052757 nitrogen Inorganic materials 0.000 claims description 16
- 238000000034 method Methods 0.000 abstract description 7
- 230000001276 controlling effect Effects 0.000 description 6
- 239000004020 conductor Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001234 light alloy Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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
-
- 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
- B23K20/129—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 specially adapted for particular articles or workpieces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
A novel device for controlling friction stir welding deformation mainly comprises a clamp body, a square groove I, a square groove II, a metal tube, an electromagnetic spring, a thermocouple and a wireWire and wireWire and wireWire and wireTotal wireAnd a controller. The invention mainly designs and manufactures a novel device suitable for controlling friction stir welding deformation, and in particular designs a novel clamp, which ensures that the temperature of a plate is transferred into the air according to a certain rule in the friction stir welding process, and the plate is small in thermal deformation, so that the welding deformation of the plate is small. The invention can control the deformation of the lightweight plate in the friction stir welding process, thereby improving the welding quality.
Description
Technical Field
The invention relates to a friction stir welding technology, in particular to a technology for controlling the friction stir welding deformation of a plate, and specifically relates to a novel device for controlling the friction stir welding deformation.
Background
At present, in the process of carrying out light alloy friction stir welding, the temperature in a welding area is higher, and the temperature in other areas is not timely transmitted, so that the welding of the plates is easy to deform in a V shape or a saddle shape, and the welded plates cannot be well applied to actual engineering. In order to solve one of the problems, the invention mainly adopts the designed clamp, a series of pipes for introducing nitrogen are arranged in the clamp, then the arrangement of the pipes and the flow of the nitrogen in the pipes are controlled, further the temperature field change in the friction stir welding process of the plates is realized, the optimal temperature transmission effect is ensured, and finally the welding deformation control caused by the temperature is realized.
Disclosure of Invention
The invention aims to solve the problem that the existing lightweight alloy plate is easy to deform in the friction stir welding process, and provides a novel device for controlling the friction stir welding deformation, so that the temperature of the plate is ensured to be transferred into the air according to a certain rule in the friction stir welding process, the thermal deformation of the plate is small, and the welding deformation of the plate is further ensured to be small.
The technical scheme of the invention is as follows:
The novel device for controlling the friction stir welding deformation is characterized by mainly comprising a clamp body 1, a square groove I2, a square groove II 3, a metal tube 4, an electromagnetic spring 5, a thermocouple 6 and a controller 12; the square groove I2 and the square groove II 3 are arranged in the clamp body 1 and are respectively positioned at two sides of a welding line, the metal pipes 4 are respectively arranged in the square groove I2 and the square groove II 3, nitrogen is introduced into the metal pipes 4, the flow of the nitrogen is controlled by a sensing control valve on the metal pipes 4, and the sensing control valve is electrically connected with the controller 12 through a lead; the metal pipes 4 and the wall surfaces of the square grooves I2 and II 3 are connected through the electrified electromagnetic springs 5, and the electrified electromagnetic springs 5 are provided with sensors for receiving signals and are electrically connected with the controller 12 through wires; thermocouples 6 are respectively arranged on the two sides of the upper surface of the clamp body 1 along the width direction of the welding plate and are connected with a controller 12 through wires; when the welding plate on the friction stir welding clamp body 1, the heat generated by the stirring head is transmitted to the controller 12 through the thermocouple 6, the controller 12 judges through adjustment, a control signal is transmitted to a sensing control valve arranged on the metal pipe 4 and a sensor arranged on the electrified magnetic spring 5, and then the nitrogen flow of the metal pipe 4 and the tension of the electrified magnetic spring 5 are adjusted, so that the arrangement positions of the metal pipe 4 in the square groove I2 and the square groove II 3 and the flow of nitrogen in the square groove II 3 are ensured, the temperature of the surface of the clamp body 1 is adjusted, the temperature gradient of the surface of the welding plate is reduced, and the welding deformation is reduced.
The number of the square grooves I2 and II 3 for installing the metal pipes 4 is more than 3.
The number of the thermocouples 6 is at least 3 along the width direction of the plate.
The invention has the beneficial effects that:
the invention can control the deformation of the lightweight plate in the friction stir welding process, thereby improving the welding quality.
Compared with the common welding device, the welding device can reduce deformation by more than 95%, does not deform in a V shape or a saddle shape in a welding product, and can completely meet the design and use requirements.
Drawings
FIG. 1 is a schematic diagram of the structure of the phase of the present invention.
Detailed Description
The invention is further described below with reference to the drawings and examples.
As shown in fig. 1.
A novel device for controlling friction stir welding deformation mainly comprises a clamp body 1, a square groove I2, a square groove II 3, a metal tube 4, an electromagnetic spring 5, a thermocouple 6 and a lead7. Wire/>8. Wire/>9. Wire/>10. Total conductor/>11 And a controller 12. As shown in fig. 1, a square groove i 2 and a square groove ii 3 are installed in a fixture body 1 and are respectively located at two sides of a welding seam, metal pipes 4 (the number of which is generally more than 3 depending on the width of a plate) are respectively installed in the square groove i 2 and the square groove ii 3, nitrogen is introduced into the metal pipes 4, the flow rate of the nitrogen is controlled by a sensing control valve (which can be purchased directly from the market) on the metal pipes 4, and the sensing control valve is electrically connected with a controller 12 through a wire; the metal pipes 4 and the wall surfaces of the square groove I2 or the square groove II 3 are connected by the electrified electromagnetic spring 5, and the electrified electromagnetic spring 5 is provided with a sensor for receiving signals and is provided with a wire/>9 Is electrically connected with the controller 12, the elastic force of the electrified magnetic springs 5 can be adjusted by adjusting the current in the electrified magnetic springs 5, the distance between the metal pipes 4 is further adjusted, the surface temperature of the clamp body 1 is controlled, each electrified magnetic spring 5 is connected with the controller 12 through a respective wire to be respectively adjusted, a sensor on the electrified magnetic spring 5 feeds the elastic force back to the controller to judge so as to confirm the increase and decrease of the adjustment current, and the electrified magnetic springs 5 (one of electromagnetic deformation devices) can be purchased directly from the market or can be designed and manufactured by themselves; thermocouples 6 (the number of which is determined by the width of the plate, generally 3 or more, two rows and 8 in fig. 1) are respectively arranged on the upper surface of the clamp body 1 along the two sides of the width direction of the welded plate and are connected with each other through a wire/>7. Wire/>8 Is connected with a controller 12; when the welding plate on the friction stir welding clamp body 1, the heat generated by the stirring head is transmitted to the controller 12 through the thermocouple 6, the controller 12 judges through adjustment, a control signal is transmitted to a sensing control valve arranged on the metal pipe 4 and a sensor arranged on the electrified magnetic spring 5, and then the nitrogen flow of the metal pipe 4 and the tension of the electrified magnetic spring 5 are adjusted, so that the arrangement positions of the metal pipe 4 in the square groove I2 and the square groove II 3 and the flow of nitrogen in the square groove II 3 are ensured, the temperature of the surface of the clamp body 1 is adjusted, the temperature gradient of the surface of the welding plate is reduced, and the welding deformation is reduced.
As shown in FIG. 1, in use, a welded plate (typically a lightweight alloy) is first mounted on the fixture body 1, and the thermocouple 6 is passed through a wire7. Wire/>8. Wire/>10 And Total wire/>11 Are connected; the sensing control valve arranged on the metal pipe 4 and the sensing system arranged on the electromagnetic spring 5 are arranged on the metal pipe through a lead/>9 And Total wire/>11 Are connected; total conductor/>11 Are connected to a controller 12. When the welded plate on the clamp body 1 is welded by friction stir welding, heat generated by the stirring head passes through the thermocouple 6 and the lead/>7. Wire/>8. Wire/>10 And Total wire/>11 To the controller 12, the controller 12 sends the signal through the total conductor/>, by adjusting the judgment11 And/>9 Are transmitted to a sensing control valve arranged on the metal pipe 4 and a sensing system arranged on the electrified electromagnetic spring 5, and the nitrogen flow of the metal pipe and the tension of the electrified electromagnetic spring 5 are regulated to ensure that the metal pipe 4 is arranged at the square groove I2 and the square groove II 3 and the flow of nitrogen in the square groove I2 and the square groove II so as to achieve final welding temperature gradient reduction and ensure small welding deformation.
The invention is not related in part to the same as or can be practiced with the prior art.
Claims (1)
1. The novel device for controlling the friction stir welding deformation is characterized by mainly comprising a clamp body (1), a square groove I (2), a square groove II (3), a metal tube (4), an electrified magnetic spring (5), a thermocouple (6) and a controller 12; the square groove I (2) and the square groove II (3) are arranged in the clamp body (1) and are respectively positioned at two sides of a welding line, the interiors of the square groove I (2) and the square groove II (3) are respectively provided with a metal pipe (4), nitrogen is introduced into the metal pipe (4), and the nitrogen flow is controlled by a sensing control valve on the metal pipe (4), and the sensing control valve is electrically connected with the controller (12) through a lead; the metal pipes (4) and the walls of the square grooves I (2) or II (3) are connected through electrified electromagnetic springs (5), and the electrified electromagnetic springs (5) are provided with sensors for receiving signals and are electrically connected with a controller (12); thermocouples (6) are respectively arranged on the two sides of the upper surface of the clamp body (1) along the width direction of the welding plate and are connected with a controller (12) through wires; when the welding plate on the friction stir welding clamp body (1) is subjected to friction stir welding, heat generated by a stirring head is transmitted to a controller (12) through a thermocouple (6), and the controller (12) transmits control signals to a sensing control valve arranged on the metal pipe (4) and a sensor arranged on the electrified magnetic spring (5) through adjustment and judgment, so that the nitrogen flow of the metal pipe (4) and the tension of the electrified magnetic spring (5) are adjusted, the arrangement positions of the metal pipe (4) in the square groove I (2) and the square groove II (3) and the flow of nitrogen in the square groove II are ensured, the temperature of the surface of the clamp body (1) is adjusted, the temperature gradient of the surface of the welding plate is reduced, and the welding deformation is reduced; the number of the metal pipes (4) arranged in the square groove I (2) and the square groove II (3) is more than 3; the number of the thermocouples (6) is at least 3 along the width direction of the plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910111586.1A CN109570739B (en) | 2019-02-12 | 2019-02-12 | Novel device for controlling friction stir welding deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910111586.1A CN109570739B (en) | 2019-02-12 | 2019-02-12 | Novel device for controlling friction stir welding deformation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109570739A CN109570739A (en) | 2019-04-05 |
| CN109570739B true CN109570739B (en) | 2024-05-28 |
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ID=65918720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910111586.1A Active CN109570739B (en) | 2019-02-12 | 2019-02-12 | Novel device for controlling friction stir welding deformation |
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| Country | Link |
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| CN (1) | CN109570739B (en) |
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| CN109570739A (en) | 2019-04-05 |
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