CN219746631U - Copper-aluminum dissimilar alloy friction stir welding stirring head - Google Patents

Copper-aluminum dissimilar alloy friction stir welding stirring head Download PDF

Info

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
Authority
CN
China
Prior art keywords
stirring
friction stir
stir welding
shaft shoulder
copper
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
Application number
CN202320921303.1U
Other languages
Chinese (zh)
Inventor
刘子敬
孙占国
蒋亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shijiabo Kunshan Machinery Manufacturing Co ltd
Original Assignee
Shijiabo Kunshan Machinery Manufacturing Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shijiabo Kunshan Machinery Manufacturing Co ltd filed Critical Shijiabo Kunshan Machinery Manufacturing Co ltd
Priority to CN202320921303.1U priority Critical patent/CN219746631U/en
Application granted granted Critical
Publication of CN219746631U publication Critical patent/CN219746631U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • 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

Copper-aluminum dissimilar alloy friction stir welding stirring head
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.
CN202320921303.1U 2023-04-23 2023-04-23 Copper-aluminum dissimilar alloy friction stir welding stirring head Active CN219746631U (en)

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
CN219746631U true CN219746631U (en) 2023-09-26

Family

ID=88091498

Family Applications (1)

Application Number Title Priority Date Filing Date
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
CN (1) CN219746631U (en)

Similar Documents

Publication Publication Date Title
CN113714622B (en) Stirring friction double-sided Z-shaped butt joint and lap joint composite welding method for medium plate heterogeneous material
CN108817650B (en) Stirring head for stirring friction welding of angle joint
CN108127244B (en) Double-channel friction stir welding method for mismatching of dissimilar materials
CN112958902A (en) Wire-filling static shaft shoulder friction stir welding and material increase manufacturing device and method
JP2002514512A (en) Friction rotary welding tool
CN110524105B (en) Rotary welding tool for friction welding and welding method
CN101559531B (en) Polishing multifunctional stirring friction welding tool with welding
CN113172333B (en) Friction stir welding stirring head capable of improving penetration depth
CN111496369A (en) Stirring friction welding device and method for aluminum alloy T-shaped joint filler wire static shaft shoulder
CN101972885B (en) Bushing-free narrow-gap pulse gas metal arc backing welding method of petroleum kelly bar
CN219746631U (en) Copper-aluminum dissimilar alloy friction stir welding stirring head
CN114393293B (en) Additive stirring head with small shaft shoulder action area and stirring needle with high specific surface area
CN213646302U (en) Welding tool capable of simultaneously realizing lap joint and friction stir tunnel forming
CN212239592U (en) Shaft shoulder structure for static shaft shoulder friction stir welding tool
CN117139815A (en) Steel-aluminum dissimilar metal additive friction stir rivet welding device and method
CN218612232U (en) Vertical zero-angle friction stir welding device
CN208178688U (en) Agitating friction welds cutter
CN215145647U (en) Welding tool for realizing plastic material backflow in welding area
CN107096991A (en) A kind of preparation method of aluminum bronze multiple tube
CN116213993A (en) Heterogeneous special-shaped rotary friction extrusion welding structure and method
CN217394029U (en) Stirring head and friction stir welding machine comprising same
CN111408912B (en) Preparation method and clamping tool for small-diameter narrow-gap thin-wall multi-blade component
CN109967857B (en) Friction stir welding tool for realizing large depth-width ratio low-impedance welding
CN204934852U (en) A kind of aluminium alloy pipe end soldering and sealing device
CN220739793U (en) Double-ring structure stirring head profiling scraper

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant