CN106271030A - A kind of stagewise stirring-head for the weldering of slab agitating friction - Google Patents
A kind of stagewise stirring-head for the weldering of slab agitating friction Download PDFInfo
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- CN106271030A CN106271030A CN201610833546.4A CN201610833546A CN106271030A CN 106271030 A CN106271030 A CN 106271030A CN 201610833546 A CN201610833546 A CN 201610833546A CN 106271030 A CN106271030 A CN 106271030A
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- mixing
- slab
- stirring
- different levels
- head
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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
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
A kind of stagewise stirring-head for the weldering of slab agitating friction, it is characterized in that it is made up of grip shank (1), supporter (2) and at least two-stage mixing component (9), every grade of mixing component (9) is formed by the shaft shoulder and mixing needle, and mixing components at different levels (9) are co-axially mounted with supporter (2)；Being equipped with the groove structure (7) increasing friction on the described shaft shoulders at different levels, and the diameter of the shaft shoulder at different levels progressively reduces, the size of mixing needles at different levels reduces the most step by step.The stirring friction welding agitator head of the present invention, adds the quantity of heat production of slab base material, solves sheet material base region in slab stir friction welding process and easily produces the problem of the defect such as hole and groove, improves slab friction stir welding quality；Meanwhile, the stirring-head of the present invention avoids the extra input of equipment and the numerous and diverse of technique, reduces production cost, improves production efficiency.
Description
Technical field
The present invention relates to a kind of agitating friction weldering stirring-head, a kind of agitating friction for thick plates welds to be used
Stirring-head, a kind of stagewise stirring-head for the weldering of slab agitating friction.
Background technology
Agitating friction weldering (FSW) is to be sent out by Britain's institute of welding (The Welding Institute, TWI) for 1991
Bright (US 5460317) a kind of novel solid phase joining technique, the principle of this technology is the strong friction utilizing stirring-head with material
With the stirring action to softener material, solder design district is made to be in hot plastic state and make it tend to fusing, mixing, along with stirring
Head is advanced forward, forms weld seam at the rear of stirring-head, completes solid diffusivity.During agitating friction weldering, the stirring-head shaft shoulder produces
Heat accounts for the 80%-90% of stirring-head quantity of heat production, and mixing needle heat production only accounts for the 10%-20% of overall heat production, so carrying out
In slab agitating friction connection procedure, sheet material base is usually because heat input deficiency causes the mobility of this region material not
Foot, easily produces the defect such as hole and groove in sheet material base region.The appearance of sheet material base cavity and groove greatly reduces
Joint performance.
In order to increase the plastic metal mobility of slab base material, improve the bonding strength of cut deal, patent of invention "
Kind of magnesium, Aluminum Alloy Plate friction stir welding method " (patent publication No.: CN102689090A) use apply bottom weld seam auxiliary
Help thermal source to carry out preheated weld district metal, improve sheet material base heat input, thus improve sheet material base material flowability, it is to avoid even
Connect the generation of defect.But, this method can bring in welding point problem softened zone on a large scale occur, and the method increases simultaneously
Add the complexity connecting equipment.
Patent of invention " a kind of high-strength aluminum alloy slab underground heat input friction stir welding method " (patent publication No.:
CN103624398A) use and processed the multi-stage stairs shape of given size by weldering slab edge side, carry out multiple-layer overlapped, many
The technique of passage agitating friction weldering, it is achieved the agitating friction of high-strength aluminum alloy thick plates connects, improves the performance of joint.But, this
The method of kind needs to be greatly increased the pre-welding treatment time of connection procedure sheet material, the clamping of welding process and the time of process, greatly
Reduce welding efficiency.
Summary of the invention
It is an object of the invention to for existing stirring-head carry out slab (more than 30 millimeters) agitating friction weldering time easy because of
Base material poor fluidity and produce the problem of the defect such as hole and groove, design a kind of can be used for slab agitating friction weldering point
Level formula stirring-head, to increase base material mobility, to avoid the defect such as hole and groove to produce.The present invention is mainly utilized in many
The stagewise stirring-head structure of the individual shaft shoulder, utilizes and is positioned at the shaft shoulder structure bottom slab and groove structure above thereof, increases material
Material and stirring-head frictional heat, improve base material softening degree, increases the material mobility at slab sheet material base, it is to avoid hole
The defect such as hole and groove produces, thus improves slab friction stir welding joint quality.
The technical scheme is that
A kind of stagewise stirring-head for the weldering of slab agitating friction, is characterized in that it is by grip shank 1, supporter 2 and at least two
Level mixing component 9 forms, and every grade of mixing component 9 is formed by the shaft shoulder and mixing needle, and mixing components 9 at different levels are coaxial with supporter 2
Installing, grip shank 1 is connected with one end of supporter 2, the shaft shoulder entirety phase of the other end of supporter 2 and first order mixing component 9
Even, the root of the mixing needle of first order mixing component 9 is connected with the shaft shoulder of first order mixing component 9, first order mixing component 9
The top of mixing needle is integrally attached to the shaft shoulder of second level mixing component 9, the root of the mixing needle of second level mixing component 9 and
The shaft shoulder of two grades of mixing components 9 is connected, the top of the mixing needle of second level mixing component 9 and the shaft shoulder of next stage mixing component 9
It is integrally attached to, by that analogy；The described shaft shoulders at different levels are equipped with and increase the groove structure 7 rubbed, and the shaft shoulder at different levels
Diameter progressively reduces, and the size of mixing needles at different levels reduces the most step by step.
Described mixing needles at different levels are all in frustum structure.
On the described shaft shoulders at different levels, set fluted structure 7 is circular arc or other shape, and its degree of depth is 0.1mm-
5mm。
The annular groove for increasing frictional heat it is equipped with on described mixing needles at different levels.
Described mixing needles at different levels or part mixing needle are provided with thread groove structure.
Beneficial effects of the present invention:
The stirring friction welding agitator head of the present invention, by stirring-head structure is optimized design, adds slab base material
Quantity of heat production, solve sheet material base region in slab stir friction welding process and easily produce asking of the defect such as hole and groove
Topic, improves slab friction stir welding joint quality.Relative to additive method, the stirring-head of the present invention avoids the volume of equipment
Outer input and technique numerous and diverse, reduces production cost, improves production efficiency.
The experiment proved that, under equal conditions, slab friction stir welding joint tensile strength more than 30% can be improved.
Accompanying drawing explanation
Fig. 1 is the structural representation of the stirring-head of the present invention.
Detailed description of the invention
The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1.
A kind of stagewise stirring-head for the weldering of slab agitating friction, it is stirred by grip shank 1, supporter 2 and at least two-stage
Mixing assembly 9 to form, every grade of mixing component 9 is formed by the shaft shoulder and mixing needle, is illustrated in figure 1 and has two-stage mixing component 9
The structural representation of stirring-head, structure time more than two-stage can analogize and designed, due to the shaft shoulders at different levels, mixing needle size by
Level reduces, and therefore, is considered as the intensity of material during specific design, and the material that selection intensity is high as far as possible, anti-break performance is good is as stirring
That mixes head uses material.The stagewise stirring-head of the two-stage mixing component structure in Fig. 1 by grip shank 1, supporter 2, the one-level shaft shoulder 3,
One-level mixing needle 4 forms, two grades of shaft shoulders 5 and two grades of mixing needles 6 form；One-level mixing needle 4 and two grades of mixing needles 6 are usually designed to
Frustum structure, it is possible to be designed to cylindrical-shaped structure.One end of the shaft shoulder 3 is integrally attached to one-level mixing needle 4, the other end and support
Body 2, supporter 2 is connected with grip shank 1, and grip shank is connected with friction stir welding machine.The end of one-level mixing needle 4 is two grades
The shaft shoulder 5, two grades of shaft shoulders 5 are also considered as a part for one-level mixing needle 4, and two grades of shaft shoulders 5 are less than the one-level shaft shoulder 3 diameter；Two grades
Axle 5 is connected with two grades of mixing needles 6, and two grades of mixing needles 6 are less than one-level mixing needle 4 diameter.Grip shank 1, supporter 2, the one-level shaft shoulder
3, one-level mixing needle 4 forms, two grades of shaft shoulders 5 and two grades of mixing needles 6 are coaxial configuration.Stir with one-level at the described one-level shaft shoulder 3
Mix and two circle circular arcs or polygonal grooves 7 on the end face that pin 4 is connected, are distributed, be wherein optimal with circular arc, process the most square
Just, when using circular groove, the degree of depth of groove should be not less than 1mm；It is connected with two grades of mixing needles 6 at two grades of described shaft shoulders 5
End face on two circle circular arcs or polygonal grooves 8 be distributed, be wherein optimal with circular arc, it is the most convenient to process, and uses circle
During arc groove, the degree of depth of groove should be not less than 0.5mm,；In order to increase frictional heat further, at one-level mixing needle 4 and two
Helicitic texture can be increased further on level mixing needle 6.The diameter of the one-level shaft shoulder 3 is more than the diameter of two grades of shaft shoulders 5；One-level stirs
The diameter of pin 4 is more than the diameter of two grades of mixing needles 6.When being embodied as, one-level mixing needle 4 and two grades of mixing needles 6 are equipped with
Circular arc or polygon annular groove 10, also can arrange axially disposed helicla flute 11 on one-level shaft 4, and two grades of stirrings
Helicla flute can be set on axle 4, it is possible to is not provided with helicla flute.
It is illustrated in figure 1 the stagewise stirring-head of welding 30mm heavy-gauge sheeting agitating friction weldering.The one-level shaft shoulder 3 is a diameter of
30mm, the shaft shoulder has 4 circle circular grooves 7, and depth of groove is 1mm, the basic diameter 10mm of one-level mixing needle 4, base diameter
7mm.Two grades of a diameter of 7mm of the shaft shoulder 5, the shaft shoulder has 3 circle circular grooves 8, and depth of groove is 0.5mm, two grades of mixing needles 6 are basic
Diameter 3.6mm, bottom (top) diameter 1.2mm.In welding process, two grades of stirring shaft shoulders 5 can be well to material bottom slab
Material plays frictional heat effect, improves the softening degree of material, adds the mobility of material, thus avoid hole and ditch
The generation of the defects such as groove, improves the quality of heavy-plate joint.
The stirring-head of present invention design will be used to test with the stirring-head of same type, actual measurement proves, can carry
High slab friction stir welding joint tensile strength more than 30%.
Part that the present invention does not relate to is the most same as the prior art maybe can use prior art to be realized.
Claims (5)
1. for a stagewise stirring-head for slab agitating friction weldering, it is characterized in that it by grip shank (1), supporter (2) and
At least two-stage mixing component (9) composition, every grade of mixing component (9) is formed by the shaft shoulder and mixing needle, mixing components at different levels (9) with
Supporter (2) is co-axially mounted, and grip shank (1) is connected with one end of supporter (2), and the other end of supporter (2) stirs with the first order
The shaft shoulder mixing assembly (9) is integrally attached to, the root of the mixing needle of first order mixing component (9) and first order mixing component (9)
The shaft shoulder is connected, and the top of the mixing needle of first order mixing component (9) is integrally attached to the shaft shoulder of second level mixing component (9), the
The root of the mixing needle of two grades of mixing components (9) is connected with the shaft shoulder of second level mixing component (9), second level mixing component (9)
The top of mixing needle be integrally attached to, by that analogy with the shaft shoulder of next stage mixing component (9)；On the described shaft shoulders at different levels all
Being provided with the groove structure (7) increasing friction, and the diameter of the shaft shoulder at different levels progressively reduces, the size of mixing needles at different levels subtracts the most step by step
Little.
Stagewise stirring-head for the weldering of slab agitating friction the most according to claim 1, is characterized in that described at different levels
Mixing needle is all in frustum structure.
Stagewise stirring-head for the weldering of slab agitating friction the most according to claim 1, is characterized in that described at different levels
On the shaft shoulder, set fluted structure (7) is circular arc or other shape, and its degree of depth is 0.1mm-5mm.
Stagewise stirring-head for the weldering of slab agitating friction the most according to claim 1, is characterized in that described at different levels
The annular groove for increasing frictional heat it is equipped with on mixing needle.
Stagewise stirring-head for the weldering of slab agitating friction the most according to claim 1, is characterized in that described at different levels
Mixing needle or part mixing needle are provided with thread groove structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610833546.4A CN106271030A (en) | 2016-09-20 | 2016-09-20 | A kind of stagewise stirring-head for the weldering of slab agitating friction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610833546.4A CN106271030A (en) | 2016-09-20 | 2016-09-20 | A kind of stagewise stirring-head for the weldering of slab agitating friction |
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| CN106271030A true CN106271030A (en) | 2017-01-04 |
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|---|---|---|---|
| CN201610833546.4A Pending CN106271030A (en) | 2016-09-20 | 2016-09-20 | A kind of stagewise stirring-head for the weldering of slab agitating friction |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108453369A (en) * | 2018-04-30 | 2018-08-28 | 南京理工大学 | A kind of stirring-head for slab lamination aluminum alloy stirring friction welding |
| CN109623128A (en) * | 2018-12-07 | 2019-04-16 | 南京理工大学 | A kind of stirring-head and welding procedure for Solder for Al-Cu Joint Welding dissimilar metal object Hybrid connections |
| CN111790979A (en) * | 2020-07-23 | 2020-10-20 | 敏实汽车技术研发有限公司 | Friction stir welding lap joint cutter |
| CN114226950A (en) * | 2021-12-13 | 2022-03-25 | 北京碳垣新材料科技有限公司 | Thick plate welding stirring head and thick plate welding equipment |
| CN114247980A (en) * | 2021-11-30 | 2022-03-29 | 广州瑞松威尔斯通智能装备有限公司 | Static shaft shoulder friction stir welding tool |
| CN114289853A (en) * | 2021-11-30 | 2022-04-08 | 广州瑞松威尔斯通智能装备有限公司 | Combined static shaft shoulder friction stir welding tool |
| WO2023077304A1 (en) * | 2021-11-03 | 2023-05-11 | 黄山学院 | Special stirring head for friction stir welding of aluminum alloy thick plates |
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| CN104718046A (en) * | 2012-09-06 | 2015-06-17 | 株式会社Uacj | Rotating tool for friction stir welding and friction stir welding method using same |
| CN204686270U (en) * | 2015-06-23 | 2015-10-07 | 唐远金 | A kind of friction stir weld device |
| CN105522275A (en) * | 2016-02-05 | 2016-04-27 | 河南正航主轴科技有限公司 | Stirring head for friction stir welding |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20070057015A1 (en) * | 2005-09-09 | 2007-03-15 | Kevin Colligan | Tapered friction stir welding and processing tool |
| JP2007160370A (en) * | 2005-12-15 | 2007-06-28 | Hino Motors Ltd | Friction stir welding tool |
| CN201102125Y (en) * | 2007-11-13 | 2008-08-20 | 江苏科技大学 | Agitator head for agitating friction welding |
| CN201543966U (en) * | 2008-12-22 | 2010-08-11 | 国营红阳机械厂 | Stirring head for friction stir welding |
| CN101774081A (en) * | 2010-03-09 | 2010-07-14 | 南京航空航天大学 | Weld seam lowering and thickness thinning combined stirrer used for friction stir welding |
| CN102601514A (en) * | 2012-03-22 | 2012-07-25 | 哈尔滨工业大学 | Welding set with upwards and downwards concave shaft shoulder and stirring friction welding method implemented without aid of support or inclination |
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| CN203390384U (en) * | 2013-08-19 | 2014-01-15 | 苏州市永创金属科技有限公司 | Zero-angle stirring and abrading welding joint |
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| CN105522275A (en) * | 2016-02-05 | 2016-04-27 | 河南正航主轴科技有限公司 | Stirring head for friction stir welding |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108453369A (en) * | 2018-04-30 | 2018-08-28 | 南京理工大学 | A kind of stirring-head for slab lamination aluminum alloy stirring friction welding |
| CN109623128A (en) * | 2018-12-07 | 2019-04-16 | 南京理工大学 | A kind of stirring-head and welding procedure for Solder for Al-Cu Joint Welding dissimilar metal object Hybrid connections |
| CN111790979A (en) * | 2020-07-23 | 2020-10-20 | 敏实汽车技术研发有限公司 | Friction stir welding lap joint cutter |
| WO2023077304A1 (en) * | 2021-11-03 | 2023-05-11 | 黄山学院 | Special stirring head for friction stir welding of aluminum alloy thick plates |
| CN114247980A (en) * | 2021-11-30 | 2022-03-29 | 广州瑞松威尔斯通智能装备有限公司 | Static shaft shoulder friction stir welding tool |
| CN114289853A (en) * | 2021-11-30 | 2022-04-08 | 广州瑞松威尔斯通智能装备有限公司 | Combined static shaft shoulder friction stir welding tool |
| CN114226950A (en) * | 2021-12-13 | 2022-03-25 | 北京碳垣新材料科技有限公司 | Thick plate welding stirring head and thick plate welding equipment |
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