CN107160029A - A kind of additional heating source auxiliary friction stir welding method and device - Google Patents
A kind of additional heating source auxiliary friction stir welding method and device Download PDFInfo
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- CN107160029A CN107160029A CN201710566031.7A CN201710566031A CN107160029A CN 107160029 A CN107160029 A CN 107160029A CN 201710566031 A CN201710566031 A CN 201710566031A CN 107160029 A CN107160029 A CN 107160029A
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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
- B23K20/1275—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 involving metallurgical change
-
- 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
- B23K20/14—Preventing or minimising gas access, or using protective gases or vacuum during 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
- B23K20/26—Auxiliary equipment
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses a kind of additional heating source auxiliary friction stir welding method and device, it solves the materials with high melting point agitating friction weldering such as steel, nickel-base alloy, titanium alloy in the prior art and is connected into the problem of high, the stirring-head life-span is low, region to be welded is set to reach semisolid or superplastic state, the rheology drag, reduction welding torque, requirement of the reduction to stirring-head performance of materials with high melting point can be greatly lowered, and then reduces stirring-head abrasion, improve the mixing needle life-span.Its technical scheme is：A kind of additional heating source aids in agitating friction welder, including the stirring-head for welding, and stirring-head is rotatably inserted into workpiece docking or lap weld and stirring-head is removable；For providing additional heating source part of the heat in workpiece surface formation additional heating source heating region to workpiece, additional heating source part is located at the front of stirring-head, and apart from stirring-head setpoint distance；Gas shield device, gas shield device is located above additional heating source heating region side and/or in front of stirring-head.
Description
Technical field
The present invention relates to welding field, more particularly to a kind of additional heating source auxiliary friction stir welding method and device.
Background technology
Agitating friction weldering (Friction Stir Welding, abbreviation FSW) is Britain's institute of welding (The Welding
Institute) in a kind of Solid-State Welding welding technique of invention in 1991.Compared with traditional melting welding, agitating friction welding, which has, to be connect
Head defect is few, quality is high, deformation is small, and the remarkable advantage such as welding process is green, pollution-free, in Aeronautics and Astronautics, ship, core
The industry manufacture fields such as industry, weapon industry, communications and transportation have broad application prospects.Agitating friction weldering is to utilize frictional heat
With plastic deformation heat as welding heat source, waiting for workpiece is stretched into by a column or the mixing needle for the other shapes such as being threaded
Position is welded, is rotated by the high speed of mixing needle, makes itself and welding workpiece material friction heat production, and then make the material liter of connecting portion
Temperature reaches a high temperature mecystasis.In welding process, Stirring head (the predominantly shaft shoulder) and workpiece surface frictional heat make to stir
Forced plasticity deforming occurs for the material for mixing an advance side, with the movement of stirring-head, and the material of pyroplastic deformability produces plasticity stream
It is dynamic, stirring-head rear cavity is flowed to, complete weld seam is formed under between centers pressure.
Friction stir welding has been most noticeable welding method since being come out from laser welding, is mainly used in welding low
The material of fusing point, such as aluminium alloy, magnesium alloy etc..Its appearance enables aluminum alloy to wait the connection of non-ferrous metal to occur major transformation,
Good engineer applied is achieved using friction stir welding method welding aluminum alloy.In industrialized production and application, to low melting point
The research of alloy material Friction stir welding, it is very ripe.But for the high-melting-point material such as steel, titanium alloy, nickel-base alloy
The agitating friction welding technique research of material still has many problems demands to solve, and subject matter is the limit of stirring-head elevated temperature strength
System so that the stirring-head life-span is low, welding cost is very high.
Therefore, in order to further develop stirring friction-welding technique in materials with high melting point such as steel, titanium alloy, nickel-base alloys
In application, adopt an effective measure and improve the service life of stirring-head, be to reduce one of effective way of welding cost.
The content of the invention
In order to overcome the deficiencies in the prior art, agitating friction welder is aided in the invention provides a kind of additional heating source,
The welder is by additional heating source to workpiece heat, and fusing is cooled to semisolid or superplastic state, or directly heats work
Part position to be welded reaches semisolid or superplastic state, and then the materials with high melting point of semisolid and superplastic state is stirred
Friction welding, can largely reduce the rheology drag of materials with high melting point, reduce welding torque, mitigation that stirring-head is born
Stirring-head weares and teares, and then improves mixing needle life-span, reduction welding cost.
Concrete scheme is as follows：
A kind of additional heating source aids in agitating friction welder, including：
For the stirring-head of welding, stirring-head is rotatably inserted into workpiece docking or lap weld and stirring-head is removable；
For providing additional heating source part of the heat in workpiece surface formation additional heating source heating region, additional heat to workpiece
Source block is located at the front of stirring-head, and apart from stirring-head setpoint distance, the angle of additional heating source part and workpiece surface is
α, 30 °≤α≤90 °；
Gas shield device, gas shield device is located above additional heating source heating region side and/or in front of stirring-head, uses
In being passed through protective gas to welding region.There is setpoint distance in additional heating source part, can make materials with high melting point with stirring-head
Workpiece melts, and is subsequently cooled to semisolid or superplastic state or directly heats to semisolid or superplastic state.
Additional heating source output device described in said apparatus is connected by rigid connector with described stirring-head, connector
It can be gun iron link bar, keep set angle but synchronizing moving, workpiece to be welded is heated by additional heating source auxiliary, made to be welded
Region reaches semisolid or superplastic state or directly heated to semisolid or superplastic state, can largely drop
The rheology drag of low materials with high melting point, reduces welding torque, mitigation stirring-head abrasion that stirring-head is born, and then improve mixing needle
Life-span, reduction welding cost.
The protective gas be nitrogen or argon gas or helium or carbon dioxide or hydrogen or argon gas and helium gaseous mixture or
The gaseous mixture or hydrogen and the gaseous mixture of argon gas of the gaseous mixture or carbon dioxide and helium of carbon dioxide and argon gas.
The gas shield device includes gas shield nozzle, and gas shield nozzle is axially with the angle of workpiece surface
β, 0 °≤β≤90 °.
The stirring-head is along welding direction, and the angle for deviateing vertical direction is 0 °~15 °, the shaft shoulder diameter of the stirring-head
For 1mm~100mm, stirring-head bottom sets mixing needle.
The additional heating source that the additional heating source part is provided is that laser and/or electric arc and/or plasma arc and/or sensing add
Thermal source.
The additional heating source output device is connected by rigid connector with described stirring-head clamping device, realizes stirring
Head is synchronous with the motion of additional heating source part.
The present invention operation principle be：Semisolid refers to control mushy stage temperature range in metal solidification process, obtains one
The solid-liquid mixed slurry (solid phase components are even up to 60%) that certain solid phase components are equably left floating in liquid metal mother liquor is planted,
This semi-solid metal slurry has good mobility, very low resistance of deformation.Superplasticity refers to material in certain inside
Under condition and external condition, abnormal low rheology drag, the phenomenon of abnormal high rheological property are showed, superplastic master is realized
It is certain deformation temperature and low strain rate to want condition.For steel, in the process for being heated or being cooled down to it
In, there is larger temperature difference between liquidus curve and solidus, wherein, eutectoid steel is about at 100 DEG C, and hypereutectoid steel is total to Asia
Steel is analysed about about 100 DEG C, in this temperature range, material can be made to reach semisolid, and is processed near transformation temperature, also may be used
To realize superplasticity.Therefore, during the materials with high melting point Friction stir welding such as steel, aid in heating by additional heating source
Workpiece to be welded, makes region to be welded reach semisolid or superplastic state, reduces welding torque, mitigation stirring that stirring-head is born
Head abrasion, and then improve mixing needle life-span, reduction welding cost.
Friction stir welding method is aided in present invention also offers a kind of additional heating source, this method is filled using above-mentioned welding
Put, region to be welded reaches semisolid or superplastic state, can largely reduce steel, titanium alloy, nickel-base alloy etc.
The rheology drag of high-melting-point Materials with High Strength, mitigates abrasion, the reduction welding cost of stirring-head.
The program is as follows：A kind of additional heating source aids in friction stir welding method, auxiliary using a kind of described additional heating source
Help agitating friction welder.
In order to overcome the deficiencies in the prior art, friction stir welding method is aided in the invention provides a kind of additional heating source,
It this method give and specifically how to be welded, to improve the service life of mixing needle.
A kind of additional heating source aids in friction stir welding method, comprises the following steps that：
1) additional heating source part be located in front of stirring-head, workpiece surface, its translational speed is consistent with speed of welding, attached
The angle of heating source block and workpiece surface is α, 30 °≤α≤90 °, above additional heating source part heating region and/or is stirred
Mix to set in front of head and can lead to the gas shield device of protective gas；
2) before welding starts, workpiece is carried out by additional heating source part to be heated to molten state, half is subsequently cooled to solid
State or superplastic state, or directly heat workpiece position to be welded and reach semisolid or superplastic state；
3) in welding process, the mixing needle moving direction of additional heating source part and stirring-head is always welding direction, is added
Thermal source heated partses are to semisolid or superplastic state, and stirring-head is with the speed of welding that sets along additional heating source direction of advance half
Solid-state or the welding of superplastic state region.
4) gas shield device is connected with protective gas butt welding above additional heating source heating region and/or in front of stirring-head
Region is connect to be protected.
When the workpiece to same material is welded, additional heating source heating region is in weld seam is in workpiece surface position
The heart, is also stirring-head welding center.
When the workpiece to foreign material is welded, the additional heating source heating region is inclined in workpiece surface position
Materials with high melting point side, offset distance is according to the determination of foreign material melting point difference, additional heating source heating region center and stirring-head center
It can be not arranged on the same straight line to avoid in welding process in welding direction, the material for the mecystasis that reaches a high temperature overflows,
Along welding direction, additional heating source heating location should keep certain spacing with sheet material workpiece two ends；Welding process is entered at normal temperatures
OK, it is reduction experiment difficulty, protects the feeding time sustainable whole welding process of gas.
Compared with prior art, the beneficial effects of the invention are as follows：
1) present invention passes through stirring tool hollow cavity by the way that additional heating source is heated on front side of stirring-head compared to laser
The problem of heating stirring pin bottom, improvement underheat, the present apparatus is split type, is not only simple in structure, additional heating source output dress
Put and be easy to clamping；This method is also differed in principle, is first carried out auxiliary to workpiece by additional heating source and is heated to semisolid or super
Mecystasis, then welded, help to reduce welding torque, the service life of raising mixing needle that mixing needle is born.
2) angle of the invention by limiting additional heating source and workpiece surface, it is possible to achieve quick heating, can effectively be protected
Demonstrate,prove welding quality.
3) present invention heats workpiece to be welded by additional heating source auxiliary, is melted compared in the stirring-head shaft shoulder and stirring wire surface
Wear-resistant coating is applied, stirring-head wearability is improved, then is welded, the heating that method of the invention gives full play to additional heating source is made
With, region to be welded is reached semisolid or superplastic state, can largely reduce the rheology drag of materials with high melting point,
The welding torque that reduction stirring-head is born, mitigates stirring-head abrasion, and then improves the mixing needle life-span, reduces welding cost.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its illustrate be used for explain the application, do not constitute the improper restriction to the application.
Fig. 1 is a kind of structural representation of the invention；
Fig. 2 is another structural representation of the invention；
Shown in figure：1st, stirring-head, 2, additional heating source part, 3, gas-shielded pipe, 4, workpiece, V1For speed of welding.
Embodiment
It is noted that described further below is all exemplary, it is intended to provide further instruction to the application.Unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
As background technology is introduced, the deficiencies in the prior art, in order to solve technical problem as above, this Shen
It please propose a kind of sharp additional heating source auxiliary friction stir welding method and device.
In a kind of typical embodiment of the application, stirred as depicted in figs. 1 and 2 there is provided a kind of additional heating source auxiliary
Friction welding apparatuses are mixed, the device includes the stirring-head for welding, stirring-head is rotatably inserted into workpiece docking or lap weld
And stirring-head can be moved along bead direction；Additional heating source part 2 is located at stirring-head front setpoint distance and heats mother metal, adds
There is setpoint distance, and the speed of welding that additional heating source part 2 is consistent with stirring-head in heat source component 2, attached with stirring-head
The angle for heating the axis of source block 2 and workpiece surface is α, 10 °≤α≤90 °；Additional heating source can be laser, electric arc, etc. from
Subarc, sensing heating thermal source, type of laser are optical-fiber laser, butterfly laser, Nd:YAG laser, CO2Laser, semiconductor laser
Deng；Gas shield device 3, gas shield device includes gas-shielded pipe 3, and the protection pipe 3 is located in additional heating source heating region
Top (Fig. 1) and the front of stirring-head 1 (Fig. 2), are connected with protective gas and welding region are protected, and gas-shielded pipe is with adding
Heat source component 2 is coaxial or is placed in the rear side of additional heating source part 2.
Wherein, the protective gas is the mixing of nitrogen, argon gas, helium, carbon dioxide, hydrogen or argon gas and helium
Gas, the gaseous mixture of carbon dioxide and argon gas, the gaseous mixture of carbon dioxide and helium, the gaseous mixture of hydrogen and argon gas,
For the sheet material workpiece that thickness is larger or pyroconductivity is higher, prioritizing selection helium is as protection gas, compared to argon gas, helium
Atomic mass is smaller, and nozzle is easy to run off after spraying, and vortex tendency is big, and price is higher, can be using helium and the gaseous mixture of argon gas.
The bottom of the gas-shielded pipe 3 sets nozzle, and nozzle is axially β with the angle of workpiece surface, 0 °≤β≤
90 °, above the domain side of nozzle alignment laser irradiation region and around stirring-head.
The stirring-head 1 is along welding direction, and the angle for deviateing vertical direction is 0 °~15 °, the shaft shoulder of the stirring-head 1
A diameter of 1mm~100mm, the bottom of stirring-head 1 sets mixing needle.
The translational speed of the stirring-head 1 is welding speed V1Relational expression with fusion length S, additional heating source power P is：
Wherein, Δ H is workpiece mole ablation heat, and n is that laser irradiates workpiece unit mole, and Δ T is workpiece liquid-solid phase line
The temperature difference, V2For workpiece cooldown rate.
From above formula, pass through welding speed V1, additional heating source power P and weld seam length S three between relation, if
It is fixed any two, it just can obtain the cooldown rate V of the corresponding numerical value of residual term, wherein sheet material2And sheet material mole heat of fusion Δ H
It can inquire about or test according to related data and obtain, and sheet material solid liquid phase temperature difference T and laser irradiation sheet material unit mole n
It can be obtained by estimation.
The present embodiment additionally provides a kind of additional heating source auxiliary friction stir welding method, comprises the following steps that：
1) oxide-film at sheet material workpiece position to be welded is removed with sand paper, and uses washes of absolute alcohol；It will be treated with pressing plate, bolt
Welding plate material is fixed on fixture base, it is ensured that the stability of sheet material in welding process；
2) additional heating source part 2 is located at the front certain distance of stirring-head 1, the axis of additional heating source part 2 and the upper surface of workpiece 4
Angle be α, 0 °≤α≤90 °, above additional heating source heating region and/or the front of stirring-head 1, setting can lead to protective gas
Gas shield device；
Additional heating source part 2 is located in front of gas shield device, heating location of the additional heating source part in workpiece surface
Determined with the spacing of stirring center of pin according to material melting point to be welded, thickness, laser power and speed of welding；
Speed of welding, the solidus line temperature difference and displacement interval should be slightly below theoretical value, and the power of additional heating source part 2 should be higher than that
Theoretical value, so as to increase the possibility that stirring-head carries out welding in the case where sheet material reaches semisolid or superplastic state；
By determining heating location and speed of welding of the additional heating source part 2 in workpiece surface, setting additional heating source portion
The heat time of part 2, it is to avoid part material to be welded is not up to high-temp plastic state (not opening in time) and clamping device may quilt
The problem of destruction (not closing in time)；
3) before welding starts, workpiece 4 is heated by additional heating source part 2, until workpiece position to be welded reaches half
Solid-state or superplastic state；
4) in welding process, the mixing needle moving direction of additional heating source part 2 and stirring-head 1 is always welding direction, attached
The heated partses of source block 2 are heated to semisolid or superplastic state, stirring-head 1 is with the speed of welding of setting along additional heating source part
2 direction of advance weldings, are sent above the front of stirring-head 1 and the heating region side of additional heating source part 2 by gas shield device
Enter protective gas.
Embodiment 1
Additional heating source is laser：Material to be welded is docked for thickness 3mm No. 45 steel plates, and stirring is followed successively by along welding direction
Head, gas shield device, laser beam output amasthenic lens, gas shield nozzle is 10mm with shaft shoulder marginating compartment, along level side
To angle be 45 °, protection gas be argon gas.The angle that stirring-head deviates vertical direction along welding direction is 2 °, low power laser
During calibration, its light beam is radiated at workpiece surface position for Weld pipe mill, and the angle of laser beam and horizontal direction is 80 °, laser
Beam irradiation sheet material docking line position is away from each 2mm in sheet material two ends, and the shaft shoulder and mixing needle diameter are respectively 20mm and 8mm, and mixing needle is long
Spend for 2.9mm, in welding process, axle downward pressure is 2000kN, and the rotational velocity of mixing needle is 600rpm, and laser power P is
2kW, estimated, the sheet material fusing time used is 1.5s, is cooled to the time used in semisolid or superplastic state for 0.5s, swashs
Spacing of the light irradiation in the position of workpiece surface and stirring center of pin is 2mm, and speed of welding is 1mm/s, stirring-head welding longevity
Life is more than 500m, and the weld seam tensile strength after welding is higher than mother metal.
Embodiment 2
Additional heating source is electric arc：Material to be welded docks for thickness 3mm 304 stainless steel plates, is followed successively by along welding direction
Stirring-head, TIG electric arcs, gas shield device, gas shield nozzle are 10mm, angle in the horizontal direction with shaft shoulder marginating compartment
For 45 °, protective gas is the gaseous mixture of argon gas and helium.The angle that stirring-head deviates vertical direction along welding direction is 2 °, TIG
Electric arc is Weld pipe mill in workpiece surface heating location, and the angle of TIG electric arcs and horizontal direction is 85 °, TIG electric arc heated plates
Material docks line position away from each 3mm in sheet material two ends, and the shaft shoulder and mixing needle diameter are respectively 20mm and 8mm, and mixing needle length is
In 2.9mm, welding process, axle downward pressure is 3000kN, and the rotational velocity of mixing needle is 600rpm, and TIG arc powers P is
3.5kW, estimated, the sheet material fusing time used is 2.5s, is cooled to the time used in semisolid or superplastic state for 0.6s,
TIG electric arcs are 2.8mm in the heating location and the spacing of stirring center of pin of workpiece surface, and speed of welding is 1mm/s, stirring-head
The life-span is welded more than 500m, the weld seam tensile strength after welding is higher than mother metal.
The preferred embodiment of the application is the foregoing is only, the application is not limited to, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a kind of additional heating source aids in agitating friction welder, it is characterised in that including：
For the stirring-head of welding, stirring-head is rotatably inserted into workpiece docking or lap weld and stirring-head is removable；
For providing additional heating source part of the heat in workpiece surface formation additional heating source heating region, additional heating source portion to workpiece
Part is located at the front of stirring-head, and apart from stirring-head setpoint distance, the angle of additional heating source part and workpiece surface is α, 30 °
≤α≤90°；
Gas shield device, gas shield device be located at additional heating source heating region side above and/or stirring-head in front of, for pair
Welding region is passed through protective gas.
2. a kind of additional heating source auxiliary agitating friction welder according to claim 1, it is characterised in that the protection
Gas is the gaseous mixture or carbon dioxide and argon of nitrogen or argon gas or helium or carbon dioxide or hydrogen or argon gas and helium
The gaseous mixture or carbon dioxide of gas and the gaseous mixture or hydrogen of helium and the gaseous mixture of argon gas.
3. a kind of additional heating source auxiliary agitating friction welder according to claim 1, it is characterised in that the gas
Protection device includes gas shield nozzle, and gas shield nozzle is axially β, 0 °≤β≤90 ° with the angle of workpiece surface.
4. a kind of additional heating source auxiliary agitating friction welder according to claim 1, it is characterised in that the stirring
A diameter of 1mm~the 100mm of the shaft shoulder of head.
5. a kind of additional heating source auxiliary agitating friction welder according to claim 1, it is characterised in that described additional
Heat source component is connected by rigid connector with the clamping device of described stirring-head, realizes stirring-head and additional heating source part
Motion is synchronous.
6. a kind of additional heating source auxiliary agitating friction welder according to claim 1, it is characterised in that described additional
The additional heating source that heat source component is provided is laser and/or electric arc and/or plasma arc and/or sensing heating thermal source.
7. a kind of additional heating source aids in agitating friction welder, it is characterised in that using any one of claim 1-6
A kind of additional heating source auxiliary agitating friction welder.
8. a kind of additional heating source aids in friction stir welding method, it is characterised in that comprise the following steps that：
1) additional heating source part be located in front of stirring-head, workpiece surface, its translational speed is consistent with speed of welding, additional heat
The angle of source block and workpiece surface is α, 30 °≤α≤90 °, above additional heating source part heating region and/or stirring-head
Front, which is set, can lead to the gas shield device of protective gas；
2) welding start before, by additional heating source part to workpiece carry out be heated to molten state, be subsequently cooled to semisolid or
Superplastic state, or directly heat workpiece position to be welded and reach semisolid or superplastic state；
3) in welding process, the mixing needle moving direction of additional heating source part and stirring-head is always welding direction, additional heating source
Heated partses are to semisolid or superplastic state, and stirring-head is with the speed of welding that sets along additional heating source direction of advance in semisolid
Or the welding of superplastic state region.
4) gas shield device is connected with protective gas to weld zone above additional heating source heating region and/or in front of stirring-head
Protected in domain.
9. a kind of additional heating source auxiliary friction stir welding method according to claim 8, it is characterised in that when to of the same race
When the workpiece of material is welded, additional heating source heating region is Weld pipe mill in workpiece surface position, is also that stirring-head is applied
Weldering center.
10. a kind of additional heating source auxiliary friction stir welding method according to claim 8, it is characterised in that when to different
When the workpiece for planting material is welded, the additional heating source heating region is inclined to materials with high melting point one in workpiece surface position
Side, offset distance is determined according to foreign material melting point difference.
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| CN201710566031.7A CN107160029B (en) | 2017-07-12 | 2017-07-12 | Auxiliary heat source auxiliary stirring friction welding method and device |
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| CN201710566031.7A CN107160029B (en) | 2017-07-12 | 2017-07-12 | Auxiliary heat source auxiliary stirring friction welding method and device |
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| CN107971634A (en) * | 2017-12-27 | 2018-05-01 | 长沙理工大学 | Method and system for laser-stirring composite deep fusion welding of thick plate |
| CN108237323A (en) * | 2017-12-22 | 2018-07-03 | 江西理工大学 | A kind of method and apparatus that can effectively reduce/eliminate agitating friction welded blank residual stress |
| CN109249125A (en) * | 2018-10-19 | 2019-01-22 | 中船澄西船舶修造有限公司 | Ship Welding For Dissimilar Materials Aluminium And Steel technique |
| CN109530892A (en) * | 2018-12-28 | 2019-03-29 | 渤海造船厂集团有限公司 | Consumable electrode gas shield welding nickel-based welding wire ArHeN2H2Protective gas |
| CN110814506A (en) * | 2018-08-14 | 2020-02-21 | 江苏海装金属成型科技有限公司 | Automatic high-strength large aluminum alloy welding method |
| CN110860781A (en) * | 2019-11-21 | 2020-03-06 | 东北大学秦皇岛分校 | Auxiliary heat source welding method for double-spindle friction stir welding |
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| CN108237323A (en) * | 2017-12-22 | 2018-07-03 | 江西理工大学 | A kind of method and apparatus that can effectively reduce/eliminate agitating friction welded blank residual stress |
| CN107971634A (en) * | 2017-12-27 | 2018-05-01 | 长沙理工大学 | Method and system for laser-stirring composite deep fusion welding of thick plate |
| CN110814506A (en) * | 2018-08-14 | 2020-02-21 | 江苏海装金属成型科技有限公司 | Automatic high-strength large aluminum alloy welding method |
| CN109249125A (en) * | 2018-10-19 | 2019-01-22 | 中船澄西船舶修造有限公司 | Ship Welding For Dissimilar Materials Aluminium And Steel technique |
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| CN110860781A (en) * | 2019-11-21 | 2020-03-06 | 东北大学秦皇岛分校 | Auxiliary heat source welding method for double-spindle friction stir welding |
| CN110860781B (en) * | 2019-11-21 | 2021-04-13 | 东北大学秦皇岛分校 | Auxiliary heat source welding method for double-spindle friction stir welding |
| CN111421225B (en) * | 2020-05-07 | 2023-11-24 | 铜陵学院 | Friction stir butt welding device for titanium-nickel dissimilar materials and processing method thereof |
| CN111421222A (en) * | 2020-05-07 | 2020-07-17 | 铜陵学院 | Friction stir butt welding device for large-thickness titanium-nickel dissimilar materials and machining method thereof |
| CN111421225A (en) * | 2020-05-07 | 2020-07-17 | 铜陵学院 | Friction stir butt welding device for titanium-nickel dissimilar materials and machining method thereof |
| CN111421222B (en) * | 2020-05-07 | 2024-03-08 | 铜陵学院 | Friction stir butt welding device for large-thickness titanium-nickel dissimilar materials and processing method thereof |
| CN111889874A (en) * | 2020-06-28 | 2020-11-06 | 上海畅桥真空系统制造有限公司 | Stirring welding method for aluminum alloy and stainless steel |
| CN111805106A (en) * | 2020-08-07 | 2020-10-23 | 张洪涛 | Stirring induction welding method and stirring head |
| CN112719565B (en) * | 2020-12-31 | 2022-04-26 | 昆山哈工万洲焊接研究院有限公司 | Friction stir welding method and device using rotating high-energy beam as stirring pin |
| CN112719565A (en) * | 2020-12-31 | 2021-04-30 | 昆山哈工万洲焊接研究院有限公司 | Friction stir welding method and device using rotating high-energy beam stirring pin |
| CN113492248A (en) * | 2021-05-25 | 2021-10-12 | 江苏新恒基特种装备股份有限公司 | Argon arc welds build-up welding and along with welding stirring integration vibration material disk device |
| CN115502593A (en) * | 2022-10-07 | 2022-12-23 | 哈尔滨工程大学 | Welding method for titanium alloy arc welding assisted by friction stir |
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