CN208662822U - A kind of friction stir spot soldering stirring-head - Google Patents
A kind of friction stir spot soldering stirring-head Download PDFInfo
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- CN208662822U CN208662822U CN201821390035.0U CN201821390035U CN208662822U CN 208662822 U CN208662822 U CN 208662822U CN 201821390035 U CN201821390035 U CN 201821390035U CN 208662822 U CN208662822 U CN 208662822U
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- stirring
- shaft shoulder
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- friction
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Abstract
The utility model discloses a kind of friction stir spot soldering stirring-head, the stirring-head includes stirring-head matrix and removable friction shim two parts, the stirring-head matrix is made of grip shank, the level-one shaft shoulder, the second level shaft shoulder and mixing needle, the friction shim socket is mounted on level-one shaft shoulder bottom end face, second level shaft shoulder side and lower end surface are equipped with plasticity slot, and the mixing needle is that triangular pyramid is connect with second level shaft shoulder lower end.The utility model good application effect in friction stir spot soldering tech allows friction stir spot soldering stirring-head to extend service life, and welding efficiency is high, and friction point soldered fitting fusion area increases, and welding point shearing strength is high.
Description
Technical field
The utility model relates to metal welding techniques field, specifically a kind of friction stir spot is brazed stirring-head.
Background technique
Friction stir spot welding (Friction Stir Spot Welding, abbreviation FSSW) specific welding process of FSSW
3 stages can be divided into: process of press in, withdraws process at connection procedure.Its weld appearance and the electricity for being usually applied to aluminium alloy element
It is similar to hinder spot welding, but FSSW lap joint bonding strength is higher, thus there is very high application value and research significance.
Soldering processes can rapidly realize the welding of large area magnesium alloy or aluminium alloy plate, and welding efficiency is higher, becomes
The conventional process of composite plate manufacture.Cumbersome but there are welding preparations when using soldering weldering magnesium, aluminium alloy plate, butt joint is assembled
The disadvantages of more demanding.In summary, principle is welded and is brazed based on agitating friction, and extension proposes a kind of complex welding method:
" friction stir spot soldering ".This method utilizes the heat of agitating friction generation while realizing Magnesium Alloy in Friction Stir welding
Realize the soldering of agitating friction weldering nugget periphery regional area.
The stirring-head of agitating friction weldering is the key technology for realizing agitating friction weldering, and multiple countries are to this progress in the world
A large amount of research, if Britain's institute of welding is plane, axis and work about the stirring-head shaft shoulder end face that agitating friction welds
Part surface is vertical；Axial direction was had made some improvements later, has certain main shaft angle, and indent has been made into shaft shoulder end face
Shape.The domestic processing technology also welded to agitating friction, structure type, material aspect etc. have done a large amount of research: such as Chinese patent
(CN 101176945A) just uses a kind of combined type and adds cutter deflashing, and in addition Chinese patent (CN 201529846U) is also adopted
With polypody stirring-head, base material and weld seam are able to achieve to even transition for seam weld, eliminates the distinctive thickness difference of FSSW.More than but
Most stirring-head of research is suitable for agitating friction seam weld and general friction stir spot welding, also rare to be specially adapted for agitating friction
Point is brazed this series of composite welding stirring-head, and the service life of stirring-head is short, and welding efficiency is low, and friction point soldering connects
The fusion area of head is smaller, and welding point shearing strength is low.
Utility model content
The purpose of this utility model is that: to solve, current stirring-head is suitable for agitating friction seam weld mostly or stirring rubs
Spot welding is wiped, and the Technical comparing dedicated for friction stir spot soldering is few and is not mature enough, short with the service life, welding efficiency is low,
The problems such as fusion area of friction point soldered fitting is smaller, and welding point shearing strength is low provides a kind of friction stir spot soldering
Stirring-head.
The real novel concrete scheme of this use is:
A kind of friction stir spot soldering stirring-head, which includes stirring-head matrix and removable friction shim two
Point, the stirring-head matrix is made of grip shank, the level-one shaft shoulder, the second level shaft shoulder and mixing needle, the friction shim socket installation
On level-one shaft shoulder bottom end face, second level shaft shoulder side and lower end surface are equipped with plasticity slot, and the mixing needle is triangular pyramid
It is connect with second level shaft shoulder lower end.
The friction shim is ring-type, is fastened on level-one shaft shoulder bottom end face by fixing screws and forms detachable knot
Structure.
The plasticity slot of second level shaft shoulder side is vertical screw thread plasticity slot；The plasticity slot of lower end surface is spiral ring moulding
Slot.
The beneficial effects of the utility model are:
The utility model provides a kind of friction stir spot soldering stirring-head, and stirring-head is by grip shank, the level-one shaft shoulder, second level
The shaft shoulder and mixing needle composition, are equipped with friction shim on level-one shaft shoulder bottom end face, state second level shaft shoulder side and lower end surface is set
There is plasticity slot, stating mixing needle is that triangular pyramid is connect with second level shaft shoulder lower end.The utility model is in friction stir spot soldering tech
Middle good application effect allows friction stir spot soldering stirring-head to extend service life, and welding efficiency is high, and friction point soldered fitting is molten
Qu Zeng great is closed, welding point shearing strength is high.
Detailed description of the invention
Fig. 1 is the utility model structure diagram
Fig. 2 is the bottom view of Fig. 1
Figure label indicates: 1- grip shank, the 2- level-one shaft shoulder, the 3- second level shaft shoulder, 4- mixing needle, 5- friction shim, 6- are tight
Gu screw, 7- plasticity slot.
Specific embodiment
The utility model is that one kind mixes friction point soldering stirring-head, and the stirring-head is mainly by stirring-head matrix and friction shim
5 compositions.
Wherein stirring-head matrix includes grip shank 1, the level-one shaft shoulder 2, the second level shaft shoulder 3 and mixing needle 4, and friction shim 5 includes
Wear-resistant pad loop and fastening screw 6 offer 4-8 micro-groove on the level-one shaft shoulder 2 and increase frictional heat and mixing power, second level axis
The side of shoulder 3 offers the plasticity slot 7 of vertical screw thread, and lower end surface offers spiral shape plasticity slot 7, is provided with is conducive to stirring in this way
Base material region makes base material that Plastic Flow occur, and on the other hand friction generates more heats promotion base material plastic deformations and pricker
The fusing of material, mixing needle 4 are triangular pyramid, and the level-one shaft shoulder uses plane form, and friction shim 5 is mounted on shaft shoulder face, passes through
Fastening screw 6 is fixed, forms detachable structure, and on the one hand metal that this structure can overflow stirring is squeezed, reduced
Overlap, while the heat generated with base material friction is conducive to heat large-scale solder, is allowed to preferably be combined with base material.Gasket
There is certain protective effect to the opposite service life for extending stirring-head stirring-head.
Claims (3)
1. a kind of friction stir spot is brazed stirring-head, which includes stirring-head matrix and removable friction shim two parts,
It is characterized by: the stirring-head matrix is made of grip shank, the level-one shaft shoulder, the second level shaft shoulder and mixing needle, the friction shim
Socket is mounted on level-one shaft shoulder bottom end face, and second level shaft shoulder side and lower end surface are equipped with plasticity slot, and the mixing needle is
Triangular pyramid is connect with second level shaft shoulder lower end.
2. friction stir spot according to claim 1 is brazed stirring-head, it is characterised in that: the friction shim is ring-type,
It is fastened on level-one shaft shoulder bottom end face by fixing screws and forms detachable structure.
3. friction stir spot according to claim 1 is brazed stirring-head, it is characterised in that: the modeling of second level shaft shoulder side
Property slot be vertical screw thread plasticity slot；The plasticity slot of lower end surface is spiral ring moulding slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821390035.0U CN208662822U (en) | 2018-08-28 | 2018-08-28 | A kind of friction stir spot soldering stirring-head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821390035.0U CN208662822U (en) | 2018-08-28 | 2018-08-28 | A kind of friction stir spot soldering stirring-head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208662822U true CN208662822U (en) | 2019-03-29 |
Family
ID=65840701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821390035.0U Active CN208662822U (en) | 2018-08-28 | 2018-08-28 | A kind of friction stir spot soldering stirring-head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208662822U (en) |
-
2018
- 2018-08-28 CN CN201821390035.0U patent/CN208662822U/en active Active
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