CN105382405B - A kind of static shaft shoulder Auxiliary support, which tilts, penetrates agitating friction welder and method - Google Patents
A kind of static shaft shoulder Auxiliary support, which tilts, penetrates agitating friction welder and method Download PDFInfo
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- CN105382405B CN105382405B CN201511017317.7A CN201511017317A CN105382405B CN 105382405 B CN105382405 B CN 105382405B CN 201511017317 A CN201511017317 A CN 201511017317A CN 105382405 B CN105382405 B CN 105382405B
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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
-
- 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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- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
A kind of static shaft shoulder Auxiliary support, which tilts, penetrates agitating friction welder and method, and it is related to a kind of agitating friction welder and method.The present invention in order to solve the problems, such as that existing friction stir welding method is difficult to avoid non-soldering defect, although or can avoid, the problem of making heat input excessive and cause other defect to be formed.The friction stir weld device of the present invention includes minute hand stirring-head, the static shaft shoulder, translator slider, line slideway and positioning fixture with blind hole.During welding, line slideway, welded piece and positioning fixture transfixion, minute hand stirring-head, static shaft shoulder peace are moved sliding block and moved along welding direction, realize welding process.A kind of static shaft shoulder Auxiliary support inclination of the present invention penetrates friction stir welding method and comprised the following steps：Step 1: the assembling of device；Step 2: the fixation of minute hand stirring-head and the static shaft shoulder；Step 3: agitating friction welds.The present invention is used for agitating friction and welded.
Description
Technical field
The present invention relates to a kind of agitating friction welder and method, and in particular to a kind of static shaft shoulder Auxiliary support tilts
Agitating friction welder and method are penetrated, belongs to welding technology field.
Background technology
Friction stir welding method has the advantages that welding deformation is small, joint quality is high and green energy conservation, in Aero-Space
Had a wide range of applications with fields such as track traffics.But the limitation due to Friction stir welding in itself, mixing needle used
Length be generally less than the thickness of welded piece to ensure the shaft shoulder to be in close contact with welded piece and obtain good weld seam into
Shape.It is less than welded piece thickness just because of mixing needle length, thus is difficult to avoid that and forms non-soldering defect in the root of weld, and
And the defect is difficult to be found using conventional detection method by size is smaller, thus there is larger potential safety hazard.Especially
It is seriously to reduce joint bearing capacity for plate sheet welding, the non-soldering defect in root, and for bearing the joint of dynamic load
For, the non-soldering defect in root can seriously reduce its fatigue behaviour.
To solve this problem, patent《CN101947691A》The self-sustaining that a kind of shaft shoulder diameter up and down does not wait is disclosed to stir
Friction welding method is mixed, obtains the joint of the non-soldering defect in no root, but because the heat production simultaneously of the upper and lower shaft shoulder causes heat defeated
Enter higher and make welding joint softened serious, cause joint mechanical property relatively low, and this method also has what mixing needle was easily broken off
Shortcoming；Patent《CN102601515A》Disclose a kind of non-rotary self-sustaining agitating friction welding stirring-head of lower shaft shoulder and its
Welding method, thermal weld stress is reduced because the lower shaft shoulder does not rotate, but zero inclination angle welding can only be carried out due to double-shaft shoulder and
Forging and stamping effect deficiency is caused so that the defects of hole easily occurs in joint；Patent《CN103894726A》By in welding process
Using homogeneous material backing plate and in postwelding milling except the mode of backing plate eliminates the non-soldering defect in root, but the method not only increases weldering
Process and cost are connect, and easily introduces Hook defects in workpiece bottom, instead results in joint performance reduction.Therefore, the present invention carries
Go out a kind of static shaft shoulder Auxiliary support and tilt to penetrate friction stir welding method, can while non-soldering defect is avoided completely,
Thermal weld stress is effectively reduced, welding with angle is realized, finally obtains high-quality high-strength welding point.
The content of the invention
The present invention proposes that a kind of static shaft shoulder Auxiliary support tilts and penetrates agitating friction welder and method, it is therefore an objective to solves
The problem of certainly existing friction stir welding method is difficult to avoid non-soldering defect, although or can avoid, make heat input mistake
The problem of greatly and causing other defect to be formed, design mixing needle length is more than the stirring-head of welded piece thickness, and makes stirring
Pin tilts and penetrates welded piece, bears to weld axial load by the static shaft shoulder with blind hole below welded piece, complete
While avoiding non-soldering defect formation, high-quality high-strength friction stir welding is obtained.
The present invention adopts the technical scheme that to solve the above problems：
A kind of static shaft shoulder Auxiliary support, which tilts, penetrates agitating friction welder, and it includes minute hand stirring-head, stationary shaft
Shoulder, translator slider, line slideway and positioning fixture, minute hand stirring-head are made up of the upper shaft shoulder and long mixing needle, and long mixing needle is fixed
Installed in the lower end of the upper shaft shoulder, and long mixing needle is coaxially disposed with the upper shaft shoulder, and the length of minute hand stirring-head mixing needle, which is more than, is welded
Thickness of workpiece；The cross section of the upper shaft shoulder and long mixing needle is circle；The center of the static shaft shoulder is machined with blind round hole, stationary shaft
Shoulder diameter is not less than stirring-head shaft shoulder diameter, and blind hole diameter is more than long mixing needle diameter, and blind hole depth is more than long mixing needle length
With the difference of welded piece thickness；Two positioning fixtures are positioned opposite along welding direction and on welding bench, straight line
Guide rail is arranged on the welding bench between two positioning fixtures along welding direction, and translator slider is arranged on line slideway,
The static shaft shoulder is arranged in translator slider, and translator slider can be slided on line slideway, and welded piece is arranged on two locator cards
The upper end of tool, minute hand stirring-head are arranged on welding machine, and minute hand stirring-head, static shaft shoulder peace move sliding block and is in same axis
On, during welding, welded piece, line slideway, positioning fixture and welding bench transfixion, the long mixing needle of minute hand stirring-head
The blind hole of the static shaft shoulder is inserted through welded piece, minute hand stirring-head, static shaft shoulder peace are moved sliding block and moved along welding direction, directly
Completed to welding.
The diameter of the static shaft shoulder is bigger 5mm than the upper shaft shoulder diameter of minute hand stirring-head.
The diameter of static shaft shoulder blind hole is bigger 4mm than the diameter of long mixing needle.
The length of the long mixing needle of depth ratio of static shaft shoulder blind hole and the big 3mm of difference of welded piece thickness.
Tilted present invention also offers a kind of static shaft shoulder Auxiliary support and penetrate friction stir welding method, it includes following
Step：
Step 1: the assembling of device：
Translator slider is slipped into line slideway from side, and line slideway is fixed on agitating friction welding along welding direction
Workbench on, the both sides of two identical positioning fixtures close to line slideways are placed and secured on workbench, welded
During, the positioning fixture transfixion of line slideway and its both sides；
Step 2: the fixation of minute hand stirring-head and the static shaft shoulder：
Minute hand stirring-head is fixed on friction stir welding machine, the static shaft shoulder is fixed in translator slider；The static shaft shoulder
With positioning fixture upper end surface in same level, minute hand stirring-head, static shaft shoulder peace are moved sliding block and are in coaxially for upper surface
On line；In welding process, static shaft shoulder peace is moved sliding block and slided together along line slideway 4, minute hand stirring-head and the static shaft shoulder
With translator slider synchronizing moving；
Step 3：Agitating friction welds：
Welded piece is fixed on positioning fixture, welded piece lower surface is in close contact with static shaft shoulder upper surface, is adjusted
Selected welding condition input control system, startup are simultaneously welded button, are stirred friction welding by whole tilt angle.
The inclination angle of minute hand stirring-head 1 being fixed on welding machine is 0.5 ° -5 °.
The invention has the advantages that：
The present invention enables mixing needle to tilt to penetrate and welded by designing minute hand stirring-head and the static shaft shoulder with blind hole
Workpiece, the heat production simultaneously of the upper and lower shaft shoulder of self-sustaining agitating friction weldering was both avoided and has caused heat input higher and make welding joint softened serious
The problem of, turn avoid double-shaft shoulder can only carry out zero inclination angle welding cause forging and stamping effect deficiency so that easily there is hole and lacked in joint
The problem of falling into, while also reduce the possibility that mixing needle is broken in welding process.The present invention is avoiding non-soldering defect completely
While formation, thermal weld stress is effectively reduced, realizes welding with angle, high-quality high-strength agitating friction weldering can be obtained
Joint.
Brief description of the drawings
Fig. 1 is that the static shaft shoulder Auxiliary support of the present invention tilts the cross-sectional view for penetrating agitating friction welder；Fig. 2
It is that the static shaft shoulder Auxiliary support of the present invention tilts the Longitudinal cross section schematic for penetrating agitating friction welder.
Wherein 1 is minute hand stirring-head, and 2 be the static shaft shoulder with blind hole, and 3 be translator slider, and 4 be line slideway, and 5 be fixed
Position fixture, 6 be welded piece, and 7 be welding bench.
Embodiment
Embodiment one：Illustrate present embodiment with reference to Fig. 1 to Fig. 2, a kind of static shaft shoulder of present embodiment is auxiliary
Support inclination is helped to penetrate agitating friction welder, it is characterised in that：It includes minute hand stirring-head 1, the static shaft shoulder 2, translation cunning
Block 3, line slideway 4 and positioning fixture 5, minute hand stirring-head 1 are made up of the upper shaft shoulder and long mixing needle, and long mixing needle is fixedly mounted on
The lower end of the upper shaft shoulder, and long mixing needle is coaxially disposed with the upper shaft shoulder, the length of the mixing needle of minute hand stirring-head 1 is more than welded piece thickness
Degree；The cross section of the upper shaft shoulder and long mixing needle is circle；
The center of the static shaft shoulder 2 is machined with blind round hole, and the static diameter of the shaft shoulder 2 is not less than the shaft shoulder diameter of stirring-head 1, blind hole
Diameter is more than long mixing needle diameter, and blind hole depth is more than long mixing needle length and the difference of welded piece thickness；
Two positioning fixtures 5 are positioned opposite along welding direction and on the welding bench 7, and line slideway 4 is along welding
Direction is arranged on the welding bench 7 between two positioning fixtures 5, and translator slider 3 is arranged on line slideway 4, stationary shaft
Shoulder 2 is arranged in translator slider 3, and translator slider 3 can be slided on line slideway 4, and welded piece 6 is arranged on two positioning fixtures
5 upper end, minute hand stirring-head 1 are arranged on welding machine, and minute hand stirring-head 1, the static shaft shoulder 2 and translator slider 3 are in same axle
On line, during welding, welded piece 6, line slideway 4, positioning fixture 5 and the transfixion of welding bench 7, minute hand stirring-head 1
Long mixing needle inserts the blind hole of the static shaft shoulder 2 through welded piece 6, and minute hand stirring-head 1, the static shaft shoulder 2 and translator slider 3 are along weldering
Direction movement is connect, until welding is completed.
The minute hand stirring-head 1 of present embodiment refers to that mixing needle length is more than the stirring-head of welded piece thickness.
Embodiment two：Illustrate present embodiment with reference to Fig. 1 to Fig. 2, the length of minute hand stirring-head 1 in present embodiment
The length of mixing needle is bigger 2mm than welded piece thickness, is arranged such, and can eliminate the non-soldering defect in root, remaining and specific reality
It is identical to apply mode one.
Embodiment three：Illustrate present embodiment with reference to Fig. 1 to Fig. 2, the end face of the static shaft shoulder 2 of present embodiment is straight
Footpath is bigger 5mm than the upper shaft shoulder diameter of minute hand stirring-head 1.It is arranged such, axial compressive force acts on the static shaft shoulder 2 completely, can
Obtain good appearance of weld.Other connected modes are identical with embodiment one or two.
Embodiment four：Illustrate present embodiment, the blind hole of the static shaft shoulder 2 of present embodiment with reference to Fig. 1 to Fig. 2
Diameter is bigger 4mm than the diameter of long mixing needle.It is arranged such, can effectively prevents from occurring between mixing needle side and blind hole side wall
Phase mutual friction, so as to reduce mixing needle abrasion.Other connected modes are identical with embodiment one, two or three.
Embodiment five：Illustrate present embodiment, the blind hole of the static shaft shoulder 2 of present embodiment with reference to Fig. 1 to Fig. 2
The length of the long mixing needle of depth ratio and the big 3mm of difference of welded piece thickness.It is arranged such, can effectively prevents mixing needle end face
Phase mutual friction occurs between blind hole bottom surface, so as to reduce mixing needle abrasion.Other connected modes and embodiment one,
2nd, three or four is identical.
Embodiment six：Illustrate present embodiment with reference to Fig. 1 to Fig. 2, a kind of static shaft shoulder of present embodiment is auxiliary
Support inclination is helped to penetrate friction stir welding method, it comprises the following steps：
Step 1: the assembling of device：
Translator slider 3 is slipped into line slideway 4 from side, and line slideway 4 is fixed on agitating friction along welding direction
On the workbench 7 of welding, the both sides of two identical positioning fixtures 5 close to line slideways 4 are placed and secured in workbench 7
On, in welding process, the transfixion of positioning fixture 5 of line slideway 4 and its both sides；
Step 2: the fixation of minute hand stirring-head and the static shaft shoulder：
Minute hand stirring-head 1 is fixed on friction stir welding machine, the static shaft shoulder 2 is fixed in translator slider 3；Stationary shaft
The upper surface of shoulder 2 and the upper end surface of positioning fixture 5 are in same level, at minute hand stirring-head 1, the static shaft shoulder 2 and translator slider 3
On coaxial line；In welding process, the static shaft shoulder 2 and translator slider 3 are slided along line slideway 4 together, minute hand stirring-head 1 with
The static shaft shoulder 2 and the synchronizing moving of translator slider 3；
Step 3：Agitating friction welds：
Welded piece 6 is fixed on positioning fixture 5, the lower surface of welded piece 6 closely connects with the static upper surface of the shaft shoulder 2
Touch, adjust tilt angle and selected welding condition input control system, startup are welded button, be stirred friction
Welding.
Embodiment seven：Illustrate present embodiment with reference to Fig. 1 to Fig. 2, present embodiment is fixed on welding machine
The inclination angle of minute hand stirring-head 1 is 0.5 ° -5 °.It is arranged such, can effectively strengthens the forging and stamping effect of shaft shoulder Resistance of Weld Metal, avoid
The defects of producing hole.Other connected modes are identical with embodiment five or six.
Embodiment eight：Illustrate present embodiment with reference to Fig. 1 to Fig. 2, present embodiment is fixed on welding machine
The inclination angle of minute hand stirring-head 1 is 2 °.It is arranged such, can effectively strengthens the forging and stamping effect of shaft shoulder Resistance of Weld Metal, avoid producing
The defects of hole.Other connected modes are identical with embodiment five, six or seven.
Claims (8)
1. a kind of static shaft shoulder Auxiliary support, which tilts, penetrates agitating friction welder, it is characterised in that：It is stirred including minute hand
Head (1), the static shaft shoulder (2), translator slider (3), line slideway (4) and positioning fixture (5), minute hand stirring-head (1) is by the upper shaft shoulder
Formed with long mixing needle, long mixing needle is fixedly mounted on the lower end of the shaft shoulder, and long mixing needle is coaxially disposed with the upper shaft shoulder, minute hand
The mixing needle length of stirring-head (1) is more than welded piece thickness；The cross section of the upper shaft shoulder and long mixing needle is circle；
The center of the static shaft shoulder (2) is machined with blind round hole, and the static shaft shoulder (2) diameter is not less than stirring-head (1) shaft shoulder diameter, blind
Bore dia is more than long mixing needle diameter, and blind hole depth is more than long mixing needle length and the difference of welded piece thickness；
Two positioning fixtures (5) are positioned opposite along welding direction and on welding bench (7), the weldering of line slideway (4) edge
Direction is connect on the welding bench (7) between two positioning fixtures (5), translator slider (3) is arranged on line slideway (4)
On, the static shaft shoulder (2) is arranged in translator slider (3), and translator slider (3) can be slided on line slideway (4), welded piece
(6) upper end of two positioning fixtures (5) is arranged on, minute hand stirring-head (1) is arranged on welding machine, minute hand stirring-head (1), stationary shaft
Shoulder (2) and translator slider (3) are on same axis, during welding, welded piece (6), line slideway (4), positioning fixture (5)
With welding bench (7) transfixion, the long mixing needle of minute hand stirring-head (1) inserts the static shaft shoulder (2) through welded piece (6)
Blind hole, minute hand stirring-head (1), the static shaft shoulder (2) and translator slider (3) move along welding direction, until welding is completed.
2. a kind of static shaft shoulder Auxiliary support according to claim 1, which tilts, penetrates agitating friction welder, its feature
It is：The length of the long mixing needle of minute hand stirring-head (1) is bigger 2mm than welded piece thickness.
3. a kind of static shaft shoulder Auxiliary support according to claim 1, which tilts, penetrates agitating friction welder, its feature
It is：The diameter of the static shaft shoulder (2) is bigger 5mm than the upper shaft shoulder diameter of minute hand stirring-head (1).
4. a kind of static shaft shoulder Auxiliary support according to claim 1, which tilts, penetrates agitating friction welder, its feature
It is：The diameter of the static shaft shoulder (2) blind hole is bigger 4mm than the diameter of long mixing needle.
5. a kind of static shaft shoulder Auxiliary support according to claim 1, which tilts, penetrates agitating friction welder, its feature
It is：The length of the long mixing needle of depth ratio of the static shaft shoulder (2) blind hole and the big 3mm of difference of welded piece thickness.
6. a kind of static shaft shoulder Auxiliary support, which tilts, penetrates friction stir welding method, it is characterised in that：It comprises the following steps：
Step 1: the assembling of device：
Translator slider (3) is slipped into line slideway (4) from side, and line slideway (4) is fixed on stirring along welding direction and rubbed
On the workbench (7) for wiping welding, two identical positioning fixtures (5) are placed and secured in close to the both sides of line slideway (4)
On workbench (7), in welding process, positioning fixture (5) transfixion of line slideway (4) and its both sides；
Step 2: the fixation of minute hand stirring-head and the static shaft shoulder：
Minute hand stirring-head (1) is fixed on friction stir welding machine, the static shaft shoulder (2) is fixed in translator slider (3)；It is static
The shaft shoulder (2) upper surface and positioning fixture (5) upper end surface in same level, minute hand stirring-head (1), the static shaft shoulder (2) and
Translator slider (3) is on coaxial line；In welding process, the static shaft shoulder (2) and translator slider (3) are together along line slideway
(4) slide, minute hand stirring-head (1) and the static shaft shoulder (2) and translator slider (3) synchronizing moving；
Step 3：Agitating friction welds：
Welded piece (6) is fixed on positioning fixture (5), welded piece (6) lower surface and the static shaft shoulder (2) upper surface are close
Contact, adjust tilt angle and selected welding condition input control system, startup are welded button, be stirred and rub
Wipe welding.
7. a kind of static shaft shoulder Auxiliary support according to claim 6, which tilts, penetrates friction stir welding method, its feature
It is：Minute hand stirring-head (1) inclination angle being fixed on welding machine is 0.5 ° -5 °.
8. a kind of static shaft shoulder Auxiliary support according to claim 7, which tilts, penetrates friction stir welding method, its feature
It is：Minute hand stirring-head (1) inclination angle being fixed on welding machine is 2 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511017317.7A CN105382405B (en) | 2015-12-29 | 2015-12-29 | A kind of static shaft shoulder Auxiliary support, which tilts, penetrates agitating friction welder and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511017317.7A CN105382405B (en) | 2015-12-29 | 2015-12-29 | A kind of static shaft shoulder Auxiliary support, which tilts, penetrates agitating friction welder and method |
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| Publication Number | Publication Date |
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| CN105382405A CN105382405A (en) | 2016-03-09 |
| CN105382405B true CN105382405B (en) | 2017-11-17 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110076440B (en) * | 2018-07-15 | 2020-12-29 | 倪平涛 | Method for welding aluminum alloy vehicle body cylinder assembly of railway vehicle by using static double-shaft-shoulder or four-shaft-shoulder stirring head with auxiliary rope pulling device |
| CN109676328B (en) * | 2019-02-12 | 2023-11-21 | 黄山学院 | Inclined plane workpiece surface modification method and device |
| CN110039170B (en) * | 2019-03-28 | 2021-07-13 | 哈尔滨工业大学 | Device and method for assisting single-pass friction stir welding of T-shaped joint by using homogeneous clamp |
| CN109940261B (en) * | 2019-03-28 | 2021-07-13 | 哈尔滨工业大学 | Device and method for auxiliary friction stir welding of T-shaped joint through dynamic support |
| CN112475587B (en) * | 2020-11-11 | 2022-11-04 | 哈尔滨工业大学 | Friction stir welding device and method for applying argon protection to two sides of weld joint |
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| JP2004136365A (en) * | 2002-09-27 | 2004-05-13 | Kawasaki Heavy Ind Ltd | Friction stir welding equipment and friction stir welding method |
| JP2004167510A (en) * | 2002-11-18 | 2004-06-17 | Kawasaki Heavy Ind Ltd | Holding apparatus and friction stir joining apparatus |
| CN102601515A (en) * | 2012-03-29 | 2012-07-25 | 哈尔滨工业大学 | Self-sustaining friction stir welding stirring head with irrotational lower shaft shoulder and welding method of stirring head |
| CN104972216A (en) * | 2014-04-08 | 2015-10-14 | 中国科学院沈阳自动化研究所 | Self-hold welding tool and technological method for friction stir and lap welding |
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| JP2001121275A (en) * | 2000-09-14 | 2001-05-08 | Hitachi Ltd | Friction welding method |
| JP2004136365A (en) * | 2002-09-27 | 2004-05-13 | Kawasaki Heavy Ind Ltd | Friction stir welding equipment and friction stir welding method |
| JP2004167510A (en) * | 2002-11-18 | 2004-06-17 | Kawasaki Heavy Ind Ltd | Holding apparatus and friction stir joining apparatus |
| CN102601515A (en) * | 2012-03-29 | 2012-07-25 | 哈尔滨工业大学 | Self-sustaining friction stir welding stirring head with irrotational lower shaft shoulder and welding method of stirring head |
| CN104972216A (en) * | 2014-04-08 | 2015-10-14 | 中国科学院沈阳自动化研究所 | Self-hold welding tool and technological method for friction stir and lap welding |
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