CN104999173B - Thin-walled aluminum alloy pipe end sealing and welding device and welding method - Google Patents
Thin-walled aluminum alloy pipe end sealing and welding device and welding method Download PDFInfo
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- CN104999173B CN104999173B CN201510452475.9A CN201510452475A CN104999173B CN 104999173 B CN104999173 B CN 104999173B CN 201510452475 A CN201510452475 A CN 201510452475A CN 104999173 B CN104999173 B CN 104999173B
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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
- B23K20/126—Workpiece support, i.e. backing or clamping
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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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/10—Aluminium or alloys thereof
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- Pressure Welding/Diffusion-Bonding (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a thin-walled aluminum alloy pipe end sealing and welding device and welding method. The sealing and welding device comprises a roller carrier unit used for supporting a thin-walled aluminum alloy pipe and an aluminum alloy bar. One end of the aluminum alloy bar is fixed with a hollow chuck installed on a rotary clamp. A centre is installed at the end, penetrating through the chuck, of the aluminum alloy bar. The other end of the aluminum alloy bar is a shaft body with the diameter smaller than that of the aluminum alloy bar. The shaft body and the aluminum alloy bar form a shaft shoulder. The shaft body is inserted into the thin-walled aluminum alloy pipe and is in interference fit with the thin-walled aluminum alloy pipe. A stirring head is installed above the thin-walled aluminum alloy pipe, and sealing and welding of the thin-walled aluminum alloy pipe end are achieved through an H-type welding joint. The thin-walled aluminum alloy pipe end sealing and welding device completes welding at a time through the H-type weld joint, and the welding quality and air impermeability of the aluminum alloy pipe are ensured while the appearance accuracy of a welded part is ensured.
Description
Technical field
The present invention relates to a kind of thin-wall aluminum alloy pipe end soldering and sealing device and welding method, belong to metal material processing field.
Background technology
Agitating friction weldering (Friction Stir Welding is called for short FSW) is Britain's institute of welding (The Welding
Institute) in the patent solder technology of invention in 1991.Agitating friction welds except the advantage with conventional friction welding technology
Outward, it is also possible to carry out multiple joint form and the connection of different welding position.Agitating friction welding technology Aeronautics and Astronautics,
The aspects such as boats and ships, train, electric power and heavy weapons are succeeded application, but currently in terms of the welding of thin-wall aluminum alloy pipe still
So there are some problems.
When tube wall becomes hour, welding difficulty becomes big.Patent (201410729971.X) proposes employing tungsten inert gas
Protection weldering, solves the connectivity problem of small-diameter, thin-walled aluminium alloy pipe；Patent (201010524846.7) proposes a kind of minor diameter
Ozzle and the welding method of aluminium alloy thin-walled structure, weld with aluminium alloy thin-walled structure junction minor-diameter nozzle, with
Sample is also to use arc welding method to weld.It practice, use arc welding method to carry out welding (such as ac tungsten inert gases welding) to aluminum
When alloy welds, easily causing crackle and pore, especially when thin-wall pipe welds, welding deformation is even more serious, waste product
Rate is even up to 70%.In order to improve welding quality, patent (201310096100.4) proposes a kind of heat pump with small-bore super
The production method of thin-walled high-frequency welding aluminium-alloy pipe, but welding current is higher, reaches 230～235A, the electricity of high-frequency welding simultaneously
Efficiency low (about about 50%), voltage and current is the highest, poor stability.Zheng Ying et al. (patent No.:
201510118191.6,201510118211.X) propose the production method of a kind of aluminium alloy super-large diameter thin wall overpressure resistant pipe, logical
The method crossing agitating friction welding carries out longitudinal seam welding.But the end face sealing technique without reference to aluminium-alloy pipe.Li Hui etc.
People (coming from: AWJT2005, October20-23, Dalian, China, A42-A47) proposes a kind of thin-wall aluminum alloy cylinder weldering
The friction stir welding method of seam, but in welding process, need to use the equipment of internal tensioner to ensure that weldment is indeformable, simultaneously
Also need to hold out against from both sides end cap, and the method proposed is applicable to aluminium alloy cylindrical body end face and has the situation of opening, i.e. works as end
When face requires thoroughly to close, the method proposed will be unable to task.
Visible, when thin-wall aluminum alloy pipe (wall thickness is less than 1mm) needs end face to close welding, it is faced with a welding difficult problem, body
Present: 1, wall thickness is relatively thin causes rigidity and torsional property poor, it is difficult to directly nip rotation welding；2, aluminium alloy end face is closed
Requirement, causes internal swelling device to be difficult to put into inside thin-wall pipe, thus causes agitating friction to weld owing to lacking inner support
Connect failure.It is proposed that a kind of effective thin-wall aluminum alloy sealing method for tube end and device have important practical significance.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of thin-wall aluminum alloy pipe end envelope
Welder and welding method, use H type weld seam disposably to complete welding, it is ensured that ensures again welding while the precision of welding
Quality and the air-tightness of aluminium-alloy pipe.
Technical scheme: for solving above-mentioned technical problem, a kind of thin-wall aluminum alloy pipe end soldering and sealing device of the present invention, including using
In supporting thin-wall aluminum alloy pipe and the turning rolls group of aluminium alloy bars, one end of described aluminium alloy bars is by being arranged on rolling clamp
The chuck of hollow fix, aluminium alloy bars is provided with top through one end of chuck, and the aluminium alloy bars other end is that diameter is less than aluminum
The axle body of alloy bar, axle body forms the shaft shoulder with aluminium alloy bars, and axle body is inserted in thin-wall aluminum alloy pipe, axle body and thin-wall aluminum alloy
Pipe is interference fit, is arranged above stirring-head at thin-wall aluminum alloy pipe, is welded by agitating friction, shape on thin-wall aluminum alloy pipe
Become H type weld seam.
As preferably, described axle body is δ, δ=(t-t with the magnitude of interference of thin-wall aluminum alloy pipe0)×α×l-δ0, wherein, δ0
The temperature of thin-wall aluminum alloy pipe, t when=(1～2) * δ, t are assembling0For the ambient temperature before heating, the footpath of workpiece when α is heating
To the coefficient of expansion, l--is heated the internal diameter in hole.
As preferably, the length of described axle body is not less than 3.5 times of stirring-head diameter, and mixing needle length is not less than 1.5 times
Thin-wall aluminum alloy thickness of pipe wall.
As preferably, described H type weld seam includes first girth joint and second girth joint, and first girth joint completes
Aluminium-alloy pipe and the overlap welding of the shaft shoulder, second girth joint completes the butt welding of aluminium-alloy pipe and aluminium alloy bars.
The welding method of a kind of above-mentioned thin-wall aluminum alloy pipe end soldering and sealing device, comprises the following steps:
(1) δ=(t-t according to actual needs, is utilized0)×α×l-δ0Determining the diameter of magnitude of interference δ and axle body, it is suitable to choose
Axle body length, process satisfactory aluminium alloy bars, according to thin-wall aluminum alloy thickness of pipe wall select suitable mixing needle length；
(2) thin-wall aluminum alloy pipe being heated to 100 DEG C, assembling thin-wall aluminum alloy pipe and aluminium alloy bars are the most rapidly
Air-dry after cooling；
(3) through rolling clamp and being fixed with chuck by the workpiece assembled, remainder is then arranged in turning rolls group
Operate with rolling clamp, adjust stirring-head and make it be directed at the axis of thin-wall aluminum alloy pipe and aluminium alloy bars vertically downward, and
The distance at stirring-head centre distance axle body edge is greater than equal to D, and wherein D is the diameter of stirring-head, and mixing needle is positioned at axle body end
The surface in portion；
(4) first starting stirring-head, and make it slowly be pressed into be preheated by welding zone territory, preheating starts revotating card after terminating
Dish, the welding overlapping girth joint after chuck rotates a circle completes, and now stops the rotation of chuck, and mixing needle continues to keep at a high speed
Rotate and weld a segment distance along aluminium alloy bars axis to aluminium alloy bars side level, until aluminium-alloy pipe and aluminium alloy bars pair
Meet place and stop mobile, prepare to start the welding of butt girth welding seam；
(5) again slowly rotating chuck and direction of rotation with the most consistent, butt girth welding seam after chuck rotates a circle
Welding completes, and now stops the rotation of chuck, and stirring-head continues keep high-speed rotation and move horizontally to aluminium alloy bars side
After a small distance, slowly promote stirring-head, until mixing needle stops the rotation of stirring-head, this side pipe again after completely disengaging from weld seam
End welding terminates；
(6) according to step (1) and (2), process identical axle body, assemble thin-wall aluminum alloy pipe and aluminium alloy bars；
(7) again the thin-wall aluminum alloy pipe assembled and aluminium alloy bars are repeated step (3) to (5), can complete thin
The soldering and sealing at wall aluminium-alloy pipe two ends.
As preferably, in described step (4) or step (5), stirring-head and aluminium alloy bars observe chuck along X-axis forward
Direction of rotation, observes the direction of rotation of stirring-head simultaneously along Z axis negative sense, if chuck counterclockwise rotates, then mixing needle must be suitable
It is rotated clockwise if clockwise rotates or observes chuck from the angle of left view, then observes stirring from the angle of top view
Pin must counterclockwise rotate, and wherein, X-axis is the axis of aluminium alloy bars, is forward away from thin-wall aluminum alloy pipe, and Z axis is stirring
The axis of pin, is forward away from aluminium alloy bars.
In the present invention, thin-wall aluminum alloy pipe does not use clamping or support means, only with aluminium alloy bars interference fit, protects
During card initial weld, on the one hand, can fit tightly between aluminium-alloy pipe and aluminium alloy bars；On the other hand, interference fit is passed through
Stop the most axially opposing movement；During normal weld, completed weld seam can progressively strengthen aluminium-alloy pipe and aluminium alloy bars
Between bonding strength.The selection of this interference fit is compared with method conventional in machinery, it is not necessary to the bigger magnitude of interference, stirring
Pin inserts inside lap weld, and mixing needle inherently plays " pinning " effect, it is not necessary to the strongest strength stops both axles
To relative movement, in welding process, Fit is in high temperature (about 500 DEG C) in addition, and the excessive magnitude of interference can cause aluminum to close
Tension the strongest on gold pipe, is unfavorable for appearance of weld.And when selecting the magnitude of interference of conventional aluminum alloys material, due at 100 DEG C
At a temperature of, for aluminium alloy is than steel, it is softer, it is therefore desirable to have the bigger magnitude of interference.
Beneficial effect: the thin-wall aluminum alloy pipe end soldering and sealing device of the present invention and welding method, has the advantage that
(1) weld task of thin-walled pipe end can be efficiently accomplished, be particularly suited for the particular/special requirement of end sealing；
(2) do not use internal swelling device, thin-wall aluminum alloy pipe two ends are not held out against and be fixed, utilize and Thin-walled Aluminum is closed
Gold pipe heating makes thin-wall aluminum alloy tube swelling, is inserted into by aluminium alloy bars in thin-wall aluminum alloy pipe, overcomes thin-wall pipe firm
Spend the shortcoming low, torsional property is poor, in the welding of other materials thin-wall pipe, there is versatility；
(3) H type weld seam is used disposably to complete welding, it is ensured that while the precision of welding, to ensure again the quality of welding
And the air-tightness of aluminium-alloy pipe；
(4) simple in construction, practical, the method and device easily realize and easy to assembly, and this closes realizing Thin-walled Aluminum
The application of gold pipe end soldering and sealing has important practical significance.
Accompanying drawing explanation
Fig. 1 is thin-wall aluminum alloy pipe end soldering and sealing device overall schematic；
Fig. 2 is H type weld seam front view；
Fig. 3 is H type weld seam Section A-A schematic diagram；
Fig. 4 is welding point cross-sectional view；
Fig. 5 is advance side and retrogressing side position schematic diagram；
Fig. 6 is that welded piece coordinates schematic diagram with the direction of rotation of mixing needle.
In Fig. 1,1-aluminium-alloy pipe；2-mixing needle；3-stirring-head；4-H type weld seam；5-aluminium alloy bars；6-chuck；7-roller
Frame group；8-rolling clamp；9-is top；10 axle bodies；4-2H type weld seam is sewn to the transition of second girth joint by first boxing
Weld seam；4-1 is first girth joint in H type weld seam；4-3 is second girth joint in H type weld seam.
Detailed description of the invention
As shown in Figures 1 to 6, a kind of thin-wall aluminum alloy pipe end soldering and sealing device of the present invention, including for supporting Thin-walled Aluminum
The turning rolls group 7 of compo pipe 1 and aluminium alloy bars 5, one end of described aluminium alloy bars 5 is by being arranged on the hollow on rolling clamp 8
Chuck 6 fix, aluminium alloy bars 5 is provided with top 9 through one end of chuck 6, and aluminium alloy bars 5 other end is that diameter is less than aluminum and closes
The axle body 10 of gold rod 5, axle body 10 forms the shaft shoulder with aluminium alloy bars, and axle body 10 is inserted in thin-wall aluminum alloy pipe 1, and axle body 10 is with thin
Wall aluminium-alloy pipe 1 is interference fit, is arranged above stirring-head 3 at thin-wall aluminum alloy pipe 1, and mixing needle 2 and stirring-head 3 are one
Body, forms H type weld seam 4 on thin-wall aluminum alloy pipe 1.
In the present invention, described axle body 10 is δ, δ=(t-t with the magnitude of interference of thin-wall aluminum alloy pipe 10)×α×l-δ0, its
In, δ0=(1～2) * δ, t are temperature during assembling, t0For the ambient temperature before heating, the expanded radially system of workpiece when α is heating
Number, l--is heated the internal diameter in hole.The length of described axle body 10 is not less than 3.5 times of stirring-head 3 diameter, and mixing needle 2 length is the least
In thin-wall aluminum alloy pipe 1 wall thickness of 1.5 times.The first girth joint 4-1 of described H type weld seam 4 completes aluminium-alloy pipe 1 and the shaft shoulder
Overlap welding, the second girth joint 4-3 of H type weld seam 4 completes the butt welding of aluminium-alloy pipe 1 and aluminium alloy bars, in H type weld seam the
One girth joint 4-1 to second girth joint 4-3 is transition weld seam 4-2.
Wherein, the mixing needle 2 on stirring-head 3 rigidly fixes connection, the spinning movement of stirring-head 3, X-axis, Y-axis, Z axis
Adjusting function all can use friction stir welding machine on the market to realize, and wherein, X-axis is the axis of aluminium alloy bars, away from Thin-walled Aluminum
Compo pipe is forward, and Z axis is the axis of mixing needle, is forward away from aluminium alloy bars.Described X-axis is stirring-head 3 lengthwise movement, real
The quick location of existing weld seam, uses " servomotor+ball-screw+straight ball-guide " transmission.Described Y-axis is that stirring-head 3 is horizontal
To motion, it is achieved stirring-head 3, the adjustment of lateral attitude and handling stirring-head 3, " manual trapezoidal screw+straight-line ball is led in employing
Rail " transmission.Described Z axis is main tapping vertical movement, it is achieved the insertion of stirring-head 3, uses " servomotor+worm reducer+rolling
Ballscrew " transmission.Described weld jig rotary shaft, it is achieved aluminium alloy bars 5 and the rotation of aluminium-alloy pipe 1, use " servomotor+
Planet-cycloid reducer " drives.The rotary shaft of described stirring-head 3, can be directly driven by a motor.
In the present invention, chuck 6 is fixed on rolling clamp 8, and chuck 6 is used for clamping aluminium alloy bars 5, and rolling clamp 8 must
Must be hollow, and aluminium alloy bars can be passed.Top 9 are mainly used to promote the feeding of aluminium alloy bars, so selecting piston type pneumatic
Dynamic top 9 and the motive force of pneumatic finial 9 that selects can be less.Described turning rolls group 7, can Y-direction regulation roller it
Between distance, to adapt to the pipe fitting of different-diameter.
About advance side and the definition of retrogressing side: during welding, workpiece and stirring-head are all to rotate, due on rotating object
The direction of motion of any point is the tangential of residing circumference.As it is shown in figure 5, therefore at welding region on surface of circular tube workpiece
The circumference of metal is tangential, and (corresponding to tangential 15) during tangential identical on stirring-head circumference, with the axis of a weld on workpiece
12 is boundary, and this side is for retreating side；At welding region on surface of circular tube workpiece, the circumference of metal is tangential, and on stirring-head circumference
Time the most contrary (corresponding to tangential 16), with the axis of a weld 12 on workpiece as boundary, this side is advance side.Determine stirring-head 3
Direction of rotation with chuck 6: weld seam advance side should be made relative to retreating side shaft to sequence of positions, close relative to aluminum with aluminium alloy bars
The axial location order of gold pipe is the same, as shown in Figure 6.Assume to observe the direction of rotation of chuck 6 from the angle of left view, with
Time observe the direction of rotation of stirring-head 3 from the angle of top view, if chuck 6 counterclockwise rotates, then mixing needle 2 must be clockwise
Direction rotates；Otherwise, it is rotated clockwise if observing chuck 6 from the angle of left view, then observes from the angle of top view and stir
Mix pin 2 must counterclockwise rotate.
The welding method of a kind of above-mentioned thin-wall aluminum alloy pipe 1 end seal welder, comprises the following steps:
(1) δ=(t-t according to actual needs, is utilized0)×α×l-δ0Determine magnitude of interference δ and the diameter of axle body 10, choose conjunction
Suitable axle body 10 length, processes satisfactory aluminium alloy bars 5, selects suitable mixing needle according to thin-wall aluminum alloy pipe 1 wall thickness
2；
(2) thin-wall aluminum alloy pipe 1 being heated to 100 DEG C, assembling thin-wall aluminum alloy pipe 1 and aluminium alloy bars 5 are also the most rapidly
Quickly air-dry after cooling；
(3) through rolling clamp 8 and being fixed with chuck 6 by the workpiece assembled, remainder is then arranged on turning rolls group 7
On operate with rolling clamp 8, adjust mixing needle 2 make it be directed at thin-wall aluminum alloy pipe 1 and the axis of aluminium alloy bars 5 vertically downward
Line, and the distance of mixing needle 2 distance axis edge at one's side is greater than equal to D, and wherein D is the diameter of stirring-head 3, and mixing needle 2 is positioned at
The surface of axle body 10 end；
(4) first starting stirring-head 3, and make it slowly be pressed into be preheated by welding zone territory, preheating starts after terminating to rotate
Chuck 6, the welding overlapping girth joint after chuck 6 rotates a circle completes, and now stops the rotation of chuck 6, and mixing needle 2 continues to protect
Hold high-speed rotation and weld a segment distance along aluminium alloy bars axis to aluminium alloy bars side level, until aluminium-alloy pipe 1 and aluminum
Alloy bar joint stops mobile, prepares to start the welding of butt girth welding seam；
(5) again slowly rotating chuck 6 and direction of rotation with the most consistent, butt girth welding seam after chuck 6 rotates a circle
Welding complete, now stop the rotation of chuck 6, stirring-head 3 continues to keep high-speed rotation and to aluminium alloy bars side level
After mobile a small distance, slowly promote stirring-head 3, until mixing needle 2 stops the rotation of stirring-head 3 again after completely disengaging from weld seam
Turning, the welding of this side pipe end terminates；
(6) according to step (1) and (2), process identical axle body 10, assemble thin-wall aluminum alloy pipe 1 and aluminium alloy bars；
(7) again the thin-wall aluminum alloy pipe 1 assembled and aluminium alloy bars are repeated step (3) to (5), can complete thin
The soldering and sealing at wall aluminium-alloy pipe 1 two ends.
The above is only the preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (5)
1. a thin-wall aluminum alloy pipe end soldering and sealing device, it is characterised in that: include for supporting thin-wall aluminum alloy pipe and aluminium alloy
The turning rolls group of rod, the chuck of the one end of described aluminium alloy bars the hollow by being arranged on rolling clamp fixes, aluminium alloy bars
One end through chuck is provided with top, and the aluminium alloy bars other end is the axle body that diameter is less than aluminium alloy bars, axle body and aluminium alloy
Rod becomes the shaft shoulder, axle body to be inserted in thin-wall aluminum alloy pipe, and axle body and thin-wall aluminum alloy pipe are interference fit, at thin-wall aluminum alloy
Pipe is arranged above stirring-head, is welded by agitating friction, forms H type weld seam, thus realize Thin-walled Aluminum on thin-wall aluminum alloy pipe
The soldering and sealing of alloy pipe end；Described axle body is δ, δ=(t-t with the magnitude of interference of thin-wall aluminum alloy pipe0)×a×l-δO, wherein, δ0=
The temperature of thin-wall aluminum alloy pipe, t when (1～2) * δ, t is assembling0For the ambient temperature before heating, the radial direction of workpiece when α is heating
The coefficient of expansion, l--is heated the internal diameter in hole.
Thin-wall aluminum alloy pipe end soldering and sealing device the most according to claim 1, it is characterised in that: the length of described axle body is the least
In 3.5 times of stirring-head diameter, the mixing needle length thin-wall aluminum alloy thickness of pipe wall not less than 1.5 times.
Thin-wall aluminum alloy pipe end soldering and sealing device the most according to claim 2, it is characterised in that: described H type weld seam includes
One girth joint and second girth joint, first girth joint completes the overlap welding of aluminium-alloy pipe and the shaft shoulder, second boxing
Stitch the butt welding of aluminium-alloy pipe and aluminium alloy bars.
4. the welding method of a thin-wall aluminum alloy pipe end soldering and sealing device described in claim 3 as mentioned, it is characterised in that
Comprise the following steps:
(1) δ=(t-t according to actual needs, is utilized0)×α×l-δ0Determine the diameter of magnitude of interference δ and axle body, choose suitable axle
Body length, processes satisfactory aluminium alloy bars, selects the length of suitable mixing needle according to thin-wall aluminum alloy thickness of pipe wall；
(2) thin-wall aluminum alloy pipe is heated to 100 DEG C, assembles the most rapidly thin-wall aluminum alloy pipe and aluminium alloy bars and quickly cool down
Rear air-dried；
(3) through rolling clamp and being fixed with chuck by the workpiece assembled, remainder is then arranged in turning rolls group with rotation
Turn fixture operating, adjust stirring-head and make it be directed at the axis of thin-wall aluminum alloy pipe and aluminium alloy bars vertically downward, and stir
The distance of the off-axis edge at one's side of needle gage is greater than equal to D, and wherein D is the diameter of stirring-head, and stirring-head is positioned at just going up of axle body end
Side；
(4) first starting stirring-head, and make it slowly be pressed into be preheated by welding zone territory, preheating starts rotary chuck after terminating,
The welding overlapping girth joint after chuck rotates a circle completes, and now stops the rotation of chuck, and mixing needle continues to keep turning at a high speed
Move and weld a segment distance along aluminium alloy bars axis to aluminium alloy bars side level, until aluminium-alloy pipe docks with aluminium alloy bars
Place stops mobile, prepares to start the welding of butt girth welding seam；
(5) again slowly rotating chuck and direction of rotation with the most consistent, the welding of butt girth welding seam after chuck rotates a circle
Completing, now stop the rotation of chuck, stirring-head continues to keep high-speed rotation and moves horizontally one to aluminium alloy bars side little
After segment distance, slowly promoting stirring-head, until mixing needle stops the rotation of stirring-head again after completely disengaging from weld seam, this side pipe end welds
Access node bundle；
(6) according to step (1) and (2), process identical axle body, assemble thin-wall aluminum alloy pipe and aluminium alloy bars；
(7) again the thin-wall aluminum alloy pipe assembled and aluminium alloy bars are repeated step (3) to (5), Thin-walled Aluminum can be completed
The soldering and sealing at compo pipe two ends.
The welding method of thin-wall aluminum alloy pipe end soldering and sealing device the most according to claim 4, it is characterised in that: described step
(4) stirring-head and aluminium alloy bars observe the direction of rotation of chuck along X-axis forward or in step (5), observe along Z axis negative sense simultaneously
The direction of rotation of stirring-head, if chuck counterclockwise rotates, then mixing needle must be rotated clockwise；Or chuck side clockwise
To rotation, then mixing needle must counterclockwise rotate, and wherein, X-axis is the axis of aluminium alloy bars, away from thin-wall aluminum alloy Guan Weizheng
To, Z axis is the axis of mixing needle, is forward away from aluminium alloy bars.
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| CN201510452475.9A CN104999173B (en) | 2015-07-29 | 2015-07-29 | Thin-walled aluminum alloy pipe end sealing and welding device and welding method |
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| CN201510452475.9A CN104999173B (en) | 2015-07-29 | 2015-07-29 | Thin-walled aluminum alloy pipe end sealing and welding device and welding method |
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| CN104999173B true CN104999173B (en) | 2017-01-11 |
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|---|---|---|---|---|
| JP2003236682A (en) * | 2002-02-15 | 2003-08-26 | Sumitomo Light Metal Ind Ltd | Method for joining pipe-like members |
| CN1600492A (en) * | 2003-09-24 | 2005-03-30 | 汉拏空调株式会社 | Friction stirring welding appts, for piston of variable volume oblique-disk compressor |
| JP2012139721A (en) * | 2011-01-06 | 2012-07-26 | Calsonic Kansei Corp | Friction stir bonding method |
| CN203330636U (en) * | 2013-06-28 | 2013-12-11 | 中国航空工业集团公司北京航空制造工程研究所 | Self-supporting friction stir welding and girth welding tool clamp |
| CN204771130U (en) * | 2015-07-29 | 2015-11-18 | 江苏科技大学 | Thin wall aluminum alloy tube end soldering and sealing device |
-
2015
- 2015-07-29 CN CN201510452475.9A patent/CN104999173B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003236682A (en) * | 2002-02-15 | 2003-08-26 | Sumitomo Light Metal Ind Ltd | Method for joining pipe-like members |
| CN1600492A (en) * | 2003-09-24 | 2005-03-30 | 汉拏空调株式会社 | Friction stirring welding appts, for piston of variable volume oblique-disk compressor |
| JP2012139721A (en) * | 2011-01-06 | 2012-07-26 | Calsonic Kansei Corp | Friction stir bonding method |
| CN203330636U (en) * | 2013-06-28 | 2013-12-11 | 中国航空工业集团公司北京航空制造工程研究所 | Self-supporting friction stir welding and girth welding tool clamp |
| CN204771130U (en) * | 2015-07-29 | 2015-11-18 | 江苏科技大学 | Thin wall aluminum alloy tube end soldering and sealing device |
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| Publication number | Publication date |
|---|---|
| CN104999173A (en) | 2015-10-28 |
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