CN219746631U - Copper-aluminum dissimilar alloy friction stir welding stirring head - Google Patents
Copper-aluminum dissimilar alloy friction stir welding stirring head Download PDFInfo
- Publication number
- CN219746631U CN219746631U CN202320921303.1U CN202320921303U CN219746631U CN 219746631 U CN219746631 U CN 219746631U CN 202320921303 U CN202320921303 U CN 202320921303U CN 219746631 U CN219746631 U CN 219746631U
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- CN
- China
- Prior art keywords
- stirring
- friction stir
- stir welding
- shaft shoulder
- copper
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- 238000003756 stirring Methods 0.000 title claims abstract description 71
- 238000003466 welding Methods 0.000 title claims abstract description 46
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 14
- 239000000956 alloy Substances 0.000 title claims abstract description 14
- 239000000523 sample Substances 0.000 claims abstract description 21
- 230000007704 transition Effects 0.000 claims abstract description 6
- 239000011241 protective layer Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 6
- 239000010949 copper Substances 0.000 abstract description 6
- 229910052802 copper Inorganic materials 0.000 abstract description 6
- 239000004411 aluminium Substances 0.000 abstract description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910000881 Cu alloy Inorganic materials 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The utility model relates to the technical field of friction stir welding, in particular to a copper-aluminum dissimilar alloy friction stir welding stirring head. The novel stirring device comprises a clamping part, a transition part, a shaft shoulder part and a processing functional part which are sequentially arranged, wherein the processing functional part comprises a stirring probe arranged at the center of the bottom of the shaft shoulder part and a double-vortex-shaped wire slot which is arranged on the bottom surface of the shaft shoulder part and is arranged from outside to inside by taking the stirring probe as the center, and the outer wall of the stirring probe is provided with a plurality of tangential planes. The utility model has the advantages that: this technical scheme adopts two vortex wire casing for the material can flow along two vortex wire casing, thereby makes the material multiturn several circles, with this increase friction area, increases frictional force, and the flow is more violent, and the heat is higher, and sets up a plurality of tangent planes at stirring probe outer wall, with this increase friction surface, thereby improves frictional force, increases copper aluminium mobility, increases the conjunct, thereby effectually welds copper aluminium material, improves welding quality.
Description
Technical Field
The utility model relates to the technical field of friction stir welding, in particular to a copper-aluminum dissimilar alloy friction stir welding stirring head.
Background
Friction stir welding is a non-fusion welding method. The method utilizes a special tool, namely a stirring head, which rotates at a high speed and is inserted into a piece to be welded, the stirring head and the piece to be welded generate a large amount of friction heat, when the metal is in a molten state, the metal starts to advance, the stirring head guides the molten metal to the rear part of the metal in the welding process, and then the molten metal is fused through a stirring probe at the end part of the stirring head, and a compact welding seam is formed by forging under the pressure of the top end. The core of the friction stir welding technology is a stirring head, and the friction stir welding can realize the welding of materials such as aluminum alloy, copper alloy, magnesium alloy, titanium alloy and the like.
Because there is very big chemistry, physical and mechanical property difference between aluminum alloy and the copper alloy, traditional fusion welding hardly realizes flawless connection, and current copper-aluminum alloy connection generally adopts friction welding, flash welding and cold pressure welding technology, has the problem that manufacturing cost is high, inefficiency, among the prior art, the application number is: CN201020252521.3, the prior art discloses a stirring head for aluminum alloy friction stir welding, in which the hardness and the fluidity of aluminum alloy and copper alloy are greatly different, and the existing stirring head welding joint is adopted to have the phenomena of stirring head sizing, broken needle and the like, the welding seam surface is not formed, tunnel type defects are not obtained, a high quality welding joint cannot be obtained, and the stirring head for copper-aluminum dissimilar alloy friction stir welding needs to be designed to solve the above problems.
Disclosure of Invention
The utility model aims to provide a copper-aluminum dissimilar alloy friction stir welding stirring head, which overcomes the defects in the prior art.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a copper aluminum dissimilar alloy friction stir welding stirring head, its includes clamping part, transition portion, shaft shoulder portion and the processing functional portion that sets gradually, the processing functional portion including set up in shaft shoulder portion bottom central point puts stirring probe and set up in shaft shoulder portion bottom surface and use stirring probe to set up from outside to inside two vortex-like wire casing as the center, stirring probe outer wall sets up by a plurality of tangent planes.
Preferably, a protective layer is coated on the welding surfaces of the vortex-shaped wire groove and the bottom surface of the shaft shoulder part.
Preferably, a side fixing surface for connecting a fastener is machined on one side of the upper end shaft part of the clamping part.
Preferably, the outer wall of the stirring probe is further provided with threads.
The beneficial effects of the utility model are as follows: this technical scheme adopts two vortex wire casing for the material can flow along two vortex wire casing, thereby makes the material multiturn several circles, with this increase friction area, increases frictional force, and the flow is more violent, and the heat is higher, and sets up a plurality of tangent planes at stirring probe outer wall, with this increase friction surface, thereby improves frictional force, increases copper aluminium mobility, increases the conjunct, thereby effectually welds copper aluminium material, improves welding quality.
Drawings
FIG. 1 is a schematic structural view of a stirring head for friction stir welding of copper-aluminum dissimilar alloys according to the present utility model;
FIG. 2 is an enlarged view of a processing function part of a copper-aluminum dissimilar alloy friction stir welding stirring head according to the present utility model;
in the figure: 1. a clamping part; 2. a transition section; 3. a shaft shoulder; 4. a processing function section; 41. stirring the probe; 42. double vortex wire slots; 43. cutting into sections; 11. and (5) side fixing surfaces.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Referring to fig. 1 to 2, a stirring head for friction stir welding of copper-aluminum dissimilar alloys comprises a clamping part 1, a transition part 2, a shaft shoulder part 3 and a processing function part 4 which are sequentially arranged, wherein the processing function part 4 comprises a stirring probe 41 arranged at the central position of the bottom of the shaft shoulder part 3, and a double-vortex-shaped wire groove 42 which is arranged on the bottom surface of the shaft shoulder part 3 and is arranged from outside to inside by taking the stirring probe 41 as the center, and the outer wall of the stirring probe 41 is provided with a plurality of tangential surfaces 43.
A protective layer is coated on the welding surfaces of the vortex-shaped wire groove 42 and the bottom surface of the shaft shoulder part 3, so that the hardness is increased, and the service life of the stirring head is prolonged.
Due to the adoption of the double-vortex-shaped wire grooves 42, materials can flow along the double-vortex-shaped wire grooves 42, so that the materials can rotate for a plurality of circles, the friction area is increased, the friction force is increased, and the more severe the flow is, the higher the heat is.
The stirring probe 41 is provided with a plurality of tangential surfaces 43, and a plurality of tangential surfaces 43 are arranged, so that friction force is improved, copper-aluminum fluidity is increased, and bonding property is increased.
The upper end shaft part of the clamping part 1 is provided with a side fixing surface 11 for connecting a fastener, so that the motor is convenient to be matched for installation, and rotation is prevented in the working process.
The transition 2 is cylindrical to increase the rigidity of the overall structure.
In order to facilitate the material gathering, rotation and flow, the outer wall of the stirring probe 3 is also provided with threads.
The specific use process is as follows: 1. locking the stirring head on the stirring friction welding machine handle; 2. butt-jointing and clamping a 5mm copper alloy and an aluminum alloy plate on a workbench of a friction stir welding machine tool; 3. editing a welding program, setting a workpiece coordinate system, aligning a zero point, and shifting the axis of the stirring head to one side relative to the spliced seam of the copper-aluminum alloy plate by a certain distance; 4. starting a friction stir welding procedure, and welding along a welding line; 5. after the welding is finished, the workbench of the friction stir welding equipment is moved to a non-welding area, the parts are loosened, and the welding is finished.
The double-vortex wire slot is adopted in the technical scheme, so that materials can flow along the double-vortex wire slot, the materials can rotate for a plurality of circles, the friction area is increased, the friction force is increased, the flow is more intense, the heat is higher, the outer wall of the stirring probe is provided with a plurality of tangential planes, the friction surface is increased, the friction force is increased, the fluidity of copper and aluminum is increased, the combination is increased, the copper and aluminum materials are effectively welded, and the welding quality is improved.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (4)
1. The utility model provides a copper aluminum dissimilar alloy friction stir welding stirring head, its clamping part, transition portion, shaft shoulder portion and the processing function portion that sets gradually, its characterized in that: the processing functional part comprises a stirring probe arranged at the center of the bottom of the shaft shoulder part and a double-vortex-shaped wire slot which is arranged on the bottom surface of the shaft shoulder part and is arranged from outside to inside by taking the stirring probe as the center, wherein the outer wall of the stirring probe is provided with a plurality of tangential planes.
2. The copper aluminum dissimilar alloy friction stir welding stirring head according to claim 1, wherein: a protective layer is coated on the welding surfaces of the vortex-shaped wire groove and the bottom surface of the shaft shoulder part.
3. The copper aluminum dissimilar alloy friction stir welding stirring head according to claim 1, wherein: a side fixing surface for connecting a fastener is machined on one side of the upper end shaft part of the clamping part.
4. The copper aluminum dissimilar alloy friction stir welding stirring head according to claim 1, wherein: the outer wall of stirring probe still is provided with the screw thread.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202320921303.1U CN219746631U (en) | 2023-04-23 | 2023-04-23 | Copper-aluminum dissimilar alloy friction stir welding stirring head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202320921303.1U CN219746631U (en) | 2023-04-23 | 2023-04-23 | Copper-aluminum dissimilar alloy friction stir welding stirring head |
Publications (1)
Publication Number | Publication Date |
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CN219746631U true CN219746631U (en) | 2023-09-26 |
Family
ID=88091498
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN202320921303.1U Active CN219746631U (en) | 2023-04-23 | 2023-04-23 | Copper-aluminum dissimilar alloy friction stir welding stirring head |
Country Status (1)
Country | Link |
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CN (1) | CN219746631U (en) |
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2023
- 2023-04-23 CN CN202320921303.1U patent/CN219746631U/en active Active
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