CN107838536A - A kind of double consumable electrode TIG arc composite heat source welding techniques - Google Patents
A kind of double consumable electrode TIG arc composite heat source welding techniques Download PDFInfo
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- CN107838536A CN107838536A CN201711326944.8A CN201711326944A CN107838536A CN 107838536 A CN107838536 A CN 107838536A CN 201711326944 A CN201711326944 A CN 201711326944A CN 107838536 A CN107838536 A CN 107838536A
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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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
- B23K9/1735—Arc welding or cutting making use of shielding gas and of a consumable electrode making use of several electrodes
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Abstract
The present invention provides a kind of double consumable electrode TIG electrical arc composite heat source welding methods, and using twin-wire indirect arc TIG arc composite heat source welding workpieces, every wire feed of Twin wire arc individually matches somebody with somebody gas shielded, and mariages is connected by the fixture of adjustable angle.The present invention has added auxiliary TIG electric arcs before double consuming electrode indirect electric arcs, and composite heat power supply electric arc is formed with double consuming electrode indirect electric arcs to improve the problem of simple double consuming electrode indirect electric arc fusion penetrations are shallow using TIG electric arcs.The independent distribution protection of every wire feed of Twin wire arc has the advantage that the angle adjustable extent of not only Twin wire arc expands, and the angular range electric arc combined with TIG also expands.
Description
Technical field
The invention belongs to welding field, more particularly to a kind of double consumable electrode-TIG arc composite heat source welding techniques.
Background technology
With the development of welding technique, how to improve the productivity ratio of arc welding, welding quality and expand its application field
As researchers' focus of attention.Electric arc is in workpiece and weldering in the traditional arc welding method welding process of conventional arc Welding
Burnt between silk, a pole of the workpiece as electric arc, efficient heat part caused by electric arc is used for fusion welding material, another part
For melting workpiece, welding pool and weld seam are formed.This welding method, because a polar region is on welded piece, during welding
Polar region on workpiece, which is heated rapidly, is fused into molten bath, weld seam.It is the welding method that a kind of energy is concentrated, efficiency comparison is high, closely
Since oneth century extensive use had been obtained in Practical Project production.Its welded piece of all these arc welding methods is as weldering
An electrode of electric arc is connect, consumption electric energy is more (electric energy 40-50% is consumed on mother metal), and workpiece heat input is big, mother metal fusing amount
It is more.But the heat input that actually many times mother metal need not be so big, excessive heat input cause property of welded joint to reduce,
The quality problems such as larger welding deformation and residual stress are produced, only relies on and increases welding current to increase melting efficiency, improve
The method of welding efficiency is greatly limited, so that conventional arc is welded in balance welding efficiency and mother metal heat input aspect
Run into very big challenge.How the arc heat between reasonable distribution mother metal and welding wire turns into the important side that arc welding develops in recent years
To.
Patent of invention " twin electrode and single arc welding " (patent No.：ZL0111151030X a kind of new pair) has been invented
Deposition pole welding procedure, the characteristics of its is typical are that an electrode includes two parallel core wires, and two root bead cores connect welding respectively
The both positive and negative polarity of power supply, electric arc are formed in two root bead core ends, and welded piece not receiving electrode, utilize arc heat and molten drop heat to produce
Welded to realize in molten bath.Most heats caused by this new welding process electric arc are used for filler wire, and only seldom one
Part is used for melting workpiece, has the advantages that efficient, energy-conservation, penetration ratio are small in this way, is before one kind has applications well
The welding method of scape.But due to still falling within the category of manual welding, need to change welding rod and have impact on welding in welding engineering
The lifting of efficiency.
A kind of patent of invention " efficient overlaying method of low_input_power mariages " (patent No.：ZL2014103853970) it is exactly this
The application of kind of twin-wire indirect arc welding, the characteristics of its is typical are that the both positive and negative polarity of a source of welding current connects two independent wire feeds respectively
Welding wire, electric arc are formed in two root bead core ends, and welded piece not receiving electrode, the arc heat formed using mariages and molten drop heat come
Heating mother metal, produce molten bath and form weld seam, so as to realize the purpose of welding.This welding gun is that mariages and protection gas are integrated in
In one welding gun, restricted welding gun space, the very little that the angular range of mariages is designed.
To improve this problem, in subsequent research, history passes big etc.《The numerical simulation of twin-wire indirect arc and and TIG
Arc composite heat source welding research》It is proposed：By its intrinsic welding arc characteristic and droplet transfer feature are limited, by adjustment
The welding parameter that twin-wire indirect arc welding connects improves the heat input to welded piece, and to eliminate weld defect have certain limitation
Property, therefore the methods of additional TIG electric arcs is used to increase the heat input to workpiece to improve its weld defect and improve joint quality.
The welding method formed after additional TIG electric arcs is referred to as the welding of twin-wire indirect arc-TIG arc composite heat sources.But this device
A gas shielded cover is still shared using Twin wire arc, causes double-wire welding gun not only sufficiently bulky, and mariages angle is too small
Problem is not enhanced still, while physical space is restricted electric arc combined with TIG when, can only be entered in limited angle
Row is compound.
The content of the invention
In order to overcome above-mentioned deficiency, the present invention provides a kind of double consumable electrode-TIG arc composite heat source welding techniques.Make double
Every wire feed of silk electric arc individually matches somebody with somebody gas shielded, has the advantage that the angle adjustable extent of not only Twin wire arc expands, and
And the angular range electric arc combined with TIG also expands.
To achieve these goals, the present invention adopts the following technical scheme that：
A kind of double consumable electrode-TIG electrical arc composite heat source welding methods, using twin-wire indirect arc-TIG arc composite heat sources
Welding workpiece, every wire feed of Twin wire arc individually match somebody with somebody gas shielded.
From the point of view of the stable burning of double consuming electrode indirect electric arcs, mariages angle is more big more is beneficial to the stabilization of electric arc.The application
Found after further investigation：Because most of heat of twin-wire indirect arc is mainly concentrated in the scope narrower with mariages end, with
Mariages angle reduction, it is necessary to stabilising arc electric current it is bigger, the smaller welding parameter of angle is narrower, is easy to insufficient (incomplete) penetration occur
The defects of.In order to more preferably play the effect of composite heat power supply, the Integrated design of original double-wire welding gun is changed to separate design by the present invention,
I.e.：Single gas shielded is used per root wire, an atmosphere protection cover is no longer shared using mariages, effectively reduces double-wire welding gun
Volume, while space arrangement on no longer constrained by small angle, the stability of twin-wire indirect arc can be made more preferable.
Preferably, system includes the TIG power supplys being independently arranged and double consumable electrode sources of welding current.
Preferably, two independent wire feed rifles with gas shielded in a certain angle, angle are then included in double melting pole guns
Scope 10-70 degree.
Preferably, double consumable electrode sources of welding current are the dc source with negative electrode self-regulation effect.
Preferably, the wire feeder of double consumable electrodes is provided with the reponse system for ensuring that differential wire feed rate is stable.
Preferably, during welding, TIG and the strikings simultaneously of double melt pole electrical arcs, TIG electric arcs are played pre- to welded piece preceding
Heat and the effect for forming leading molten bath, double melt pole electrical arcs are then further expanded molten using arc heat and transition the molten drop heat of itself
Pond simultaneously forms weld seam after the cooling period using the welding wire and welded piece of fusing.
Preferably, TIG electric arcs have certain distance with double melt pole electrical arcs, are in form two independent electric arcs.
Preferably, TIG electric arcs and double melt pole electrical arcs are close, form composite arc.
Preferably, positive pole welding wire welding gun is connected with negative pole welding wire welding gun, and spacing, adjustable angle.
Preferably, double-wire welding gun is connected with TIG welding guns, and spacing, adjustable angle.
Beneficial effects of the present invention
(1) general T IG welds welding quality height, but welding efficiency is low；Double consuming electrode indirect electric arc cladding efficiency highs, still
The problem of fusion penetration is shallow be present, the present invention combines the two, can be effectively formed mutual supplement with each other's advantages, i.e., in the premise small to mother metal heat input
Under, deposition efficiency can be increased substantially.TIG electric arcs is compound simultaneously, and may be implemented under low current increases to double consuming electrode indirects
The stabilising arc effect of electric arc, such as the stabilising arc electric current of simple double consuming electrode indirect electric arcs are not less than 140A, and use the present invention's
After composite heat power supply, minimum stabilising arc electric current can drop to 100A or so.
(2) small angle is no longer limited to, is advantageous to the steady of twin-wire indirect arc for twin-wire indirect arc, mariages arrangement
It is fixed, while double-wire welding gun is no longer completely integrated in an atmospheric protective cover, mariages and TIG arrangement can not be at one
In plane, the adaptability compound with TIG is enhanced；
(3) welding method of the present invention is simple, welding efficiency is high, practical, easy to spread.
Brief description of the drawings
The Figure of description for forming 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 form the improper restriction to the application.
Fig. 1 is the welder figure of prior art, wherein, 1 pair of consumable electrode source of welding current, 2 negative pole welding wire feeding mechanisms, 3
Positive pole welding wire feeding mechanism, 4 positive pole welding wire welding guns, 5 mariages bindiny mechanisms, 6 negative pole welding wire welding guns, 7 double-wire welding guns and TIG welding guns
Bindiny mechanism, 8TIG welding guns, 9TIG power supplys.
Embodiment
It is noted that described further below is all exemplary, it is intended to provides further instruction to the application.It is 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.
The present invention is a kind of new welding procedure developed on the basis of twin electrode and arc welding, for twin electrode
Cannot be used for the deficiency of semiautomatic welding or automatic welding, two sets can the independent wire feeder of continuous wire feed be applied in the present invention,
The continuous wire feed that various commercial welding wires at present can be achieved carries out indirect arc welding.Its mode of connection is different from tradition in welding process
Arc welding, two welding wires connect with the both positive and negative polarity of power supply respectively, and are consumable electrode, and power supply energy almost all is used for fusion welding
Silk, the heat that small part arc heat and droplet transfer carry are used to melt mother metal, from mechanism and twin electrode single arc welding
It is consistent, therefore also possesses the characteristics of deposition efficiency is high, utilization rate of electrical is high, small to mother metal heat input.The welding equipment
It is to ensure electricity including 5 big key components, wherein one of key technologies such as welding gun, the source of welding current, two sets of independent wire feeders
The stable burning of arc, the source of welding current are different from the common source of welding current, have a negative electrode self regulating charactoristic, i.e. positive pole wire feed rate is certain
In the case of, the wire feed rate of negative electrode is matched according to welding current.Compared with twin electrode single arc welding, double fusing interpolars
Continuous welding can be realized by connecing electric arc, but due to assistant electric arc blowing force caused by no electrode coating, double consuming electrode indirect electric arcs
Fusion penetration it is more shallow, welding parameter is compressed in a very narrow scope during actual welding, have impact on its use
Effect.In order to overcome this defect, the present invention has added auxiliary TIG electric arcs before double consuming electrode indirect electric arcs, has utilized TIG electric arcs
Composite heat power supply electric arc is formed with double consuming electrode indirect electric arcs to improve the problem of simple double consuming electrode indirect electric arc fusion penetrations are shallow.
As shown in figure 1, including two sources of welding current in the system, one is TIG power supplys, and one is double consumable electrode welding
Power supply, two sources of welding current are separate, and wherein TIG welding guns and double melting pole guns is in a certain angle, and two root wires have respectively
Respective gas shielded, being formed an angle to fix by stationary fixture shape ensures to move simultaneously together, angular range 10-70 degree.TIG is welded
Device is the general T IG sources of welding current and welding gun；Double consumable electrode sources of welding current are the dc source with negative electrode self-regulation effect；It is double
The wire feeder of consumable electrode is responsible for certain speed wire feed, it is contemplated that the burn-off rate of mariages is different, and wire feeder contains instead
Feedback system, it is ensured that stable differential wire feed rate.During welding, TIG and the strikings simultaneously of double melt pole electrical arcs, TIG electric arcs are right preceding
Welded piece plays a part of preheating and forms leading molten bath, and double melt pole electrical arcs then utilize the arc heat and transition molten drop of itself
It is hot further to expand molten bath and form weld seam after the cooling period using the welding wire and welded piece of fusing.According to different electric currents
Match somebody with somebody, TIG electric arcs there can be certain distance with double melt pole electrical arcs, be in form two independent electric arcs, can also be with double fusings
Pole electrical arc is close, forms composite arc.In terms of practical effect, the present invention recommends to form composite arc, can preferably play
Energy-conservation, the effect of efficient welding.
Embodiment 1：Using the welder technique of this patent requirement, double consumable electrode welders use H08A welding wires,
20 ° of mariages angle, solderable shaping during mariages diameter 1.2mm, welding current 200A, speed of welding 450mm/min, maximum fusion penetration
Locate less than 0.5mm, and section of weld joint is in Ω " shapes, there is incomplete fusion phenomenon weld seam both sides.When welding current is less than 140A, electric arc is not
Surely, easy blow-out.Auxiliary TIG weld thermal source in addition, double 1 centimetre of the melting pole guns of TIG welding guns distance, TIG welding guns and double fusings
Pole welding gun angle is 60 degree, and TIG weld power supply is straight polarity direct current, and when TIG weld electric current is 100A, double consumable electrode welding currents are
During 120A, TIG electric arcs can form composite arc with double consuming electrode indirect electric arcs, and double consuming electrode indirect electric arcs are in the auxiliary of TIG electric arcs
Help down to stablize and burn, the weld seam of formation and mother metal fusion are good, while cladding efficiency is that traditional MIG is welded in same weld electric current
Under twice, while the deformation very little of mother metal.
Embodiment 2：It is auxiliary in addition with embodiment 1 using the welder technique of this patent requirement, double consumable electrode welders
TIG weld thermal source is helped, double 3 centimetres of the melting pole guns of TIG welding guns distance, TIG welding guns are 60 degree with double melting pole gun angles,
TIG weld power supply is straight polarity direct current, and when TIG weld electric current is 150A, and double consumable electrode welding currents are 200A, TIG electric arcs can
It is two independent electric arcs with double consuming electrode indirect electric arcs, does not form composite arc, but can be formed in the presence of TIG electric arcs
Compound molten bath, when speed of welding reaches 500mm/min, remain in that weld seam is completely molded, interrupted welding bead, shape do not occur
Into the fusion of weld seam and mother metal it is good, possess very high welding efficiency.
Embodiment 3：Using the welder technique of this patent requirement, double consumable electrode welders use H08A welding wires,
Mariages angle reaches 60 °, mariages diameter 1.2mm, double-wire welding gun along perpendicular to weld seam horizontal layout, wherein positive pole welding wire perpendicular to
Workpiece, negative pole welding wire tilt, and TIG welding guns and positive pole welding wire arrange that its angle is 40 °, TIG in the vertical plane parallel to weld seam
Welding gun is apart from 1 centimetre of positive pole welding gun, and TIG welding guns and positive pole welding gun angle are 60 °, and TIG weld power supply is straight polarity direct current, works as TIG
Welding current is 100A, and when double consumable electrode welding currents are 120A, TIG electric arcs can form compound electric with double consuming electrode indirect electric arcs
Arc, double consuming electrode indirect electric arcs can be stablized under the auxiliary of TIG electric arcs to burn, and the weld seam of formation and mother metal fusion are good, simultaneously
Cladding efficiency is welded in twice under same weld technological parameter close to conventional monofilament MIG.
Embodiment 4：Using the welder technique of this patent requirement, double consumable electrode welders use H08A welding wires, double
Silk diameter 1.2mm, double-wire welding gun tilt along perpendicular to weld seam horizontal layout, wherein positive pole welding wire perpendicular to workpiece, negative pole welding wire,
Positive pole welding wire, negative pole welding wire and TIG welding guns are located in the same vertical plane parallel to weld seam, and negative pole welding wire is located at welding direction
Front end, be 60 ° with positive pole welding wire angle, TIG welding guns are located at welding direction rear end, apart from 2 centimetres of positive pole welding gun, TIG welderings
Rifle and positive pole welding gun angle are 60 °, and TIG weld power supply is straight polarity direct current, and when TIG weld electric current is 150A, double consumable electrodes weld
When electric current is 120A, speed of welding 450mm/min, TIG electric arc can be two independent electric arcs with double consuming electrode indirect electric arcs, in TIG
The lower weld seam formed of electric arc auxiliary and mother metal fusion are good, and lack of fusion does not occur in weld seam.
Comparative example 1：Individually using double consuming electrode indirect electric arc welding connection devices, using H08A welding wires, in 20 ° of mariages angle,
Solderable shaping during mariages diameter 1.2mm, welding current 200A, speed of welding 450mm/min, less than 0.5mm at maximum fusion penetration,
And section of weld joint is in Ω " shapes, there is incomplete fusion phenomenon weld seam both sides.When welding current is less than 140A, electric arc is unstable, easy blow-out.
Finally it should be noted that the foregoing is only the preferred embodiments of the present invention, this hair is not limited to
Bright, although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still
Technical scheme described in previous embodiment can be modified, or equivalent substitution is carried out to which part.It is all in this hair
Within bright spirit and principle, any modification, equivalent substitution and improvements made etc., protection scope of the present invention should be included in
Within.Above-mentioned although the embodiment of the present invention is described with reference to accompanying drawing, not to the scope of the present invention
Limitation, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not required to
Various modifications or deformation that creative work can make are paid still within protection scope of the present invention.
Claims (10)
1. a kind of double consumable electrode-TIG electrical arc composite heat source welding methods, it is characterised in that using twin-wire indirect arc-TIG electricity
Arc hybrid laser-arc welding workpiece, every wire feed of Twin wire arc individually match somebody with somebody gas shielded.
2. the method as described in claim 1, it is characterised in that system includes the TIG power supplys being independently arranged and double consumable electrodes
The source of welding current.
3. the method as described in claim 1, it is characterised in that in double melting pole guns mariages at an angle, angular range
10-70 degree, two welding wires are connected by the fixture of adjustable angle.
4. the method as described in claim 1, it is characterised in that double consumable electrode sources of welding current are with negative electrode self-regulation effect
Dc source.
5. the method as described in claim 1, it is characterised in that the wire feeder of double consumable electrodes, which is provided with, ensures differential wire feed speed
Spend stable reponse system.
6. the method as described in claim 1, it is characterised in that during welding, TIG and double melt pole electrical arc strikings simultaneously, TIG electricity
Arc plays a part of preheating and forms leading molten bath, double melt pole electrical arcs then utilize the arc heat of itself preceding to welded piece
Further expand molten bath with transition molten drop heat and form weld seam after the cooling period using the welding wire and welded piece of fusing.
7. the method as described in claim 1, it is characterised in that TIG electric arcs have certain distance with double melt pole electrical arcs, in form
For two independent electric arcs.
8. the method as described in claim 1, it is characterised in that TIG electric arcs and double melt pole electrical arcs are close, form compound electric
Arc.
9. the method as described in claim 1, it is characterised in that positive pole welding wire welding gun is connected with negative pole welding wire welding gun, and spacing,
Adjustable angle.
10. the method as described in claim 1, it is characterised in that double-wire welding gun is connected with TIG welding guns, and spacing, angle can
Adjust.
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| CN201711326944.8A CN107838536B (en) | 2017-12-13 | 2017-12-13 | Double-consumable electrode-TIG electric arc composite heat source welding method |
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| CN201711326944.8A CN107838536B (en) | 2017-12-13 | 2017-12-13 | Double-consumable electrode-TIG electric arc composite heat source welding method |
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| CN107838536B CN107838536B (en) | 2020-07-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115121906A (en) * | 2022-07-26 | 2022-09-30 | 南京工程学院 | Welding-following heating system and using method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101745726A (en) * | 2008-12-19 | 2010-06-23 | 普莱克斯技术有限公司 | Twin-wire melting pole gas shielded welding torch and welding method |
| CN105817750A (en) * | 2015-01-23 | 2016-08-03 | 天津大学 | Application of twin arc-cold wire hybrid welding method |
-
2017
- 2017-12-13 CN CN201711326944.8A patent/CN107838536B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101745726A (en) * | 2008-12-19 | 2010-06-23 | 普莱克斯技术有限公司 | Twin-wire melting pole gas shielded welding torch and welding method |
| CN105817750A (en) * | 2015-01-23 | 2016-08-03 | 天津大学 | Application of twin arc-cold wire hybrid welding method |
Non-Patent Citations (4)
| Title |
|---|
| 史传伟: "双丝夹角对双丝间接电弧特性的影响", 《焊接学报》 * |
| 史传伟: "双丝间接电弧的数值模拟及与TIG电弧复合热源焊接研究", 《中国博士学位论文全文数据库 工程科技Ⅰ辑》 * |
| 吴东亭: "双丝间接电弧焊电弧特性研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
| 张威: "双丝窄间隙GMAW熔滴过渡及立焊工艺研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115121906A (en) * | 2022-07-26 | 2022-09-30 | 南京工程学院 | Welding-following heating system and using method |
| CN115121906B (en) * | 2022-07-26 | 2023-11-21 | 南京工程学院 | Welding-following heating system and use method |
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