CN105817752A - Method of compound welding twin arcs and cold wire pulse - Google Patents

Method of compound welding twin arcs and cold wire pulse Download PDF

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Publication number
CN105817752A
CN105817752A CN201610193214.4A CN201610193214A CN105817752A CN 105817752 A CN105817752 A CN 105817752A CN 201610193214 A CN201610193214 A CN 201610193214A CN 105817752 A CN105817752 A CN 105817752A
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welding wire
welding
guides
wire
cold silk
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李桓
向婷
刘永强
韦辉亮
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Tianjin University
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Tianjin University
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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
    • B23K9/24—Features related to electrodes
    • 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
    • B23K9/09—Arrangements or circuits for arc welding with pulsed current or voltage
    • B23K9/091—Arrangements or circuits for arc welding with pulsed current or voltage characterised by the circuits
    • B23K9/092—Arrangements or circuits for arc welding with pulsed current or voltage characterised by the circuits characterised by the shape of the pulses produced
    • 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
    • B23K9/24—Features related to electrodes
    • B23K9/26—Accessories for electrodes, e.g. ignition tips
    • 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
    • B23K9/24—Features related to electrodes
    • B23K9/28—Supporting devices for electrodes

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding In General (AREA)

Abstract

The invention provides a method of compound welding twin arcs and cold wire pulse. Projection points of a cold wire conductive tube, a first guiding welding wire and a second guiding welding wire on the surface of a workpiece are three vertexes of an equilateral triangle; the equilateral triangle formed by the projection points of the first guiding welding wire, the second guiding welding wire and a cold wire on the surface of the workpiece is arranged in a molten pool; and in addition the cold wire is arranged behind the first guiding welding wire and the second guiding welding wire in the welding direction and is regulated according to different phase relationships of pulse currents on the first guiding welding wire and the second guiding welding wire during welding. According to the method, the cold wire is added into the twin arcs, so that the welding efficiency is improved, the molten pool is also stabilized with addition of the cold wire, and the action of thermal input is lowered; and as the three wires are integrated into a welding gun, only one welding gun is used during welding, and the operation is simple, convenient and rapid.

Description

Twin arc and cold silk pulse complex welding method
The present patent application is the divisional application of parent application " three wire bond rifles of twin arc and cold silk pulse composite welding and welding system and method ", the Application No. 2015100332459 of parent application, the filing date of parent application on January 23rd, 2015.
Technical field
The present invention relates to welding engineering technical field, more specifically to a kind of twin arc and cold silk pulse composite welding three wire bond rifle and welding system and method.
Background technology
In recent years, the fast development of the industry such as Aero-Space, transportation, ocean engineering has greatly promoted the progress of solder technology.Product, material, the multiformity of use condition, the requirement to welding efficiency and quality is more and more higher, and how meeting the needs of current industrial development by high-quality, efficient solder technology is the vital task that Welder author faces.Therefore improve welding production efficiency and welding quality, realize Automation of Welding and produce, reduce weld defect and become an urgent demand of actual production.
Abroad mainly headed by the companies such as Germany, Japan, Austria, Switzerland, in terms of many root wires are equipped with single or multiple power supply, carry out substantial amounts of research work, mainly develop Tandem, TwinArc welding procedure, T.I.M.E welding procedure, Rapid-Melt welding procedure, Consumabledouble-electrodeGMAW welding procedure etc., in terms of improving welding production speed and metal deposition rate, achieve the achievement of some practicality.Domestic also priority has been carried out various Double Wire Welding efficient welding technology by Shandong University, Lanzhou University of Science & Technology, University Of Tianjin etc., and successively have developed the technology such as twin-wire indirect arc argon arc welding, mariages bypass coupling electric arc efficient MIG weldering, efficient twin-wire MIG/MAG impulse welding.
The research of the relevant twin-wire MIG carried out at present/MAG weldering has reached its maturity, it is known that, stable Double Wire Welding can improve welding efficiency to a certain extent, improves welding quality, then how realizing the raising of welding efficiency on the basis of Double Wire Welding further is our concern the most.It is modes based on two electric arc couplings in view of Double Wire Welding, is a kind of many arc-welding methods.The basic point of departure of many arc-welding methods is in the case of keeping thermal weld stress to be basically unchanged, and improves welding efficiency by the coupling of multichannel electric arc.
Research currently for three wire bonds is concentrated mainly on STUDY ON THE WELDING and numerical simulation study, wherein as follows about the research summary in terms of welding procedure.
(1) three consumable electrode MAG High Speed Welding
In shipbuilding and bridge construction, angle welding plays important role.Especially in shipbuilding industry, the length of fillet weld in the flat position accounts for overall fusion length about 70%, ensures that welding efficiency and welding quality are particularly important the most simultaneously.The Double Wire Welding technique in congruent melting pond is widely used in the welding of angle welding at present, and its maximum welding speed is up to 1.5m/min.Two pairs of electrodes side by side arrangement is in web both sides, and every pair of electrode forms common molten bath, can obtain satisfied angle welding when weldering speed reaches 1.2-1.3m/min at present and shape.In order to improve maximum welding speed further, it is therefore necessary to correspondingly increase welding current, but when welding current reaches 500A, electric arc serious interference, reduce the stability in molten bath, cause appearance of weld to be deteriorated, splash and increase.
In order to solve above-mentioned critical technological point, the Kobe Steel shipyard of Japan, on traditional double wire welding Process ba-sis, uses three welding procedures that double open arc heating fills silk.Disturb and arc blow by reducing the electric arc caused by welding current increase, and then ensure appearance of weld.The system schematic of three MAG welderings is as in figure 2 it is shown, filler wire is added on guiding welding wire as each of three electrodes and follows between welding wire, and pilot arc designs in line with following arc, can make relative skew fine setting, and be respectively arranged with rotary shaft.Guiding and following welding wire polarity is DCEP, and the filler wire of centre uses DEEN, the filler wire raw magnetic field of miscarriage that powers on reduces the electric arc interference guiding welding wire and following between welding wire, in addition, filler wire plays the effect in cooling molten bath, add the viscosity of fluid in molten bath, and then improve the stability in molten bath.Postwelding pore is less, and appearance of weld is good.During three MAG welderings, even if speed of welding reaches 2.0m/min, the molten bath formed is more more stable than during Double Wire Welding, the appearance of weld that therefore can obtain and anti-pore ability.
But three root wires are controlled by the source of welding current of three platform independent during welding, independently it is in three welding guns, the actually simple superposition of three melt pole electrical arcs, cannot realize between electric arc with electric arc communicating, there is electric arc poor controllability, it is difficult to accurately control fusing and the problem of droplet transfer of three root wires, additionally due to use current phase to control, when welding wire is close together, the three independently-powered meetings of root wire interfere because electromagnetic force is formed.
(2) cold silk submerged-arc welding (ICE is assistedTM)
The 17th Beijing Essen welding in 2012 with on cutting exhibition, Yi Sa company proposes brand-new auxiliary cold silk submerged welding process (ICETM).It is to insert a cold silk in the middle of two parallel heated filaments, utilizes the unnecessary heat of heated filament to melt cold silk.It is that her Sa welding and the cutting equipment company limited up-to-date disruptive technology in submerged-arc welding field develops, it is possible to increases substantially production efficiency, increases speed of welding, reduce solder flux consumption, reduces heat input and deformation, energy-conservation, higher efficiency bottoming, smoother capping.
Cold silk in the middle of ICE welding gun electrically insulate, and penetrates from the heated filament intermediate parallel of two conductions.Cold silk can independently be controlled by an independent wire-feed motor wire feed, cold silk wire feed rate.And two heated filaments by a DC motor Driver with identical speed wire feed.Cold silk wire feed rate is by PEK control and regulation, and sets according to the percentage ratio of heated filament wire feed rate.When setting welding parameter, the extra parameter of only one of which needs to arrange, the coldest silk wire feed rate percentage ratio.ICETMThere are following 7 advantages the most prominent:
1. increase deposition rate.ICETMCan increase by the deposition rate of 100% relative to monofilament submerged-arc welding, can increase by the deposition rate of 50% relative to two electrodes tandemarc submerged-arc welding.
2. increase speed of welding.Higher deposition rate and more preferable welding stability mean to use higher speed of welding.
3. reduce heat input and deformation.On the premise of same deposition rate or same speed of welding, ICETMHeat input can be reduced.For the thin plate being easily deformed and the material sensitive to heat input, this is a very important advantage.ICETMIt is particularly suitable for the plate splicing production line of shipyard to reduce welding deformation.
4. high efficiency bottoming.Use preposition monofilament and ICETMCombined Welding can realize high efficiency bottoming.Before general, silk uses 4mm welding wire DC reverse connection, ICETMWelding gun uses exchange to weld.
5. smooth capping.Use ICETMIt is easier to realize smooth capping than traditional submerged-arc welding.Because cold silk wire feed rate can only regulate to regulate reinforcement, it will not change heat input, fusion penetration and mechanical performance.
The most energy-conservation.ICETMUse extra heat to melt more welding wire, decrease energy expenditure and energy expenditure.Compared with monofilament submerged-arc welding, ICETMThe energy about 50% can be saved.Compared with two electrodes tandemarc submerged-arc welding, ICETMThe energy about 33% can be saved.
This technology is chosen as welding in 2012 and the cutting big innovative technology of industry ten by intermetallic composite coating periodical publisher.But the inapplicable less welding parameter of this welding method.Because middle welding wire is non-conductive, under less welding parameter, another two welding wire quantities of heat production are less, and the coldest silk is difficult to fusing, results in weld defect.
Summary of the invention
Instant invention overcomes deficiency of the prior art, provide a kind of twin arc and cold silk pulse composite welding three wire bond rifle, cold silk is added in twin arc, both welding efficiency (welding deposition rate) had been improved, calm molten bath (increasing molten bath viscosity), the effect of fall low_input_power can be played by the addition of cold silk again, and two root wires and a cold silk are integrated in a welding gun, only with a welding gun during actual welding, simple and convenient.
Instant invention overcomes deficiency of the prior art, additionally provide a kind of twin arc and be combined welding system and method with cold silk pulse, pulse current is used to weld, its mode of heating is different from conventional DC welding, periodically pulsing electric current can produce concussion effect, the enhancing stirring action to molten bath, thus crystal grain thinning to molten pool metal, improve welding seam toughness, improve Weld Performance.
The purpose of the present invention is achieved by following technical proposals.
nullTwin arc and cold silk pulse composite welding three wire bond rifle，Including torch body、First guides welding wire contact tube、First guides welding tip、Second guides welding wire contact tube、Second guides welding tip、Cold silk contact tube、Cold silk ignition tip、First guides welding wire (i.e. guiding welding wire 1 in accompanying drawing)、Second guides welding wire (i.e. guiding welding wire 2 in accompanying drawing) and cold silk，It is provided with described first in described torch body and guides welding wire contact tube、Described second guides welding wire contact tube and described cold silk contact tube，Described first guides welding wire contact tube to guide welding tip to be connected with described first，Described second guides welding wire contact tube to guide welding tip to be connected with described second，It is provided with welding wire in described contact tube，Described cold silk contact tube is connected with described cold silk ignition tip，Described first guides welding wire to be arranged in described first guiding welding wire contact tube，Described second guides welding wire to be arranged in described second guiding welding wire contact tube，Described cold silk is arranged in described cold silk contact tube，Described cold silk contact tube guides welding wire and described second to guide welding wire on subpoint is equilateral triangle three summits of surface of the work with described first，Described first guides welding wire and described second to guide welding wire distance between the subpoint of surface of the work to be 10-15mm，Described cold silk contact tube、Described first guides welding wire and described second to guide welding wire to be 3-10 ° with the angle of described torch body axis direction，Being arranged on described first along silk contact tube cold described in welding direction guides welding wire contact tube and described second to guide the rear of welding wire contact tube.
Described first guides welding wire and described second to guide welding wire distance between the subpoint of surface of the work to be 12mm.
Described cold silk contact tube, described first guiding welding wire and described second guide welding wire to be 7 ° with the angle of described torch body axis direction.
nullTwin arc and cold silk pulse are combined welding system，Described system use above-mentioned by the first guiding welding wire、Second guides the three wire bond rifles that welding wire and cold silk integrate，Described first guides welding wire、Described second guides welding wire and described cold silk to insulate to each other，Circular row is distributed on same circumference，Described first guides welding wire、Described second guides welding wire and described cold silk subpoint is equilateral triangle three summits on the surface of the workpiece，Described first guides welding wire and described second to guide between welding wire、Described first guides between welding wire and described cold silk and described second to guide between welding wire and described cold silk distance L (distances of ignition tip central authorities) between subpoint be 10-15mm，Described first guides welding wire and described second to guide welding wire and described cold silk to gather to the torch body axis of described three wire bond rifles，And it is 3-10 ° with the angle of described torch body axis direction，Described first guides welding wire to guide welding wire to be connected with first source of welding current (i.e. the source of welding current 1 in accompanying drawing) and second source of welding current (i.e. the source of welding current 2 in accompanying drawing) respectively with described second，Described cold silk is connected with wire-feed motor.
Described first guide welding wire and described second to guide between welding wire, described first guide between welding wire and described cold silk and described second to guide between welding wire and described cold silk distance L (distances of ignition tip central authorities) between subpoint be 12mm.
Described first guides welding wire and described second to guide welding wire and described cold silk to gather to the torch body axis of described three wire bond rifles, and is 7 ° with the angle of described torch body axis direction.
When using above-mentioned welding system to weld, first guides welding wire, the second equilateral triangle guiding welding wire and cold silk subpoint on the surface of the workpiece to be formed to be positioned in molten bath, and it is arranged on the described first rear guiding welding wire and described second guiding welding wire along silk cold described in welding direction, guide welding wire and described second to guide the out of phase relation of pulse current on welding wire according to described first, can be divided into three kinds of situations:
Situation 1, described first guides welding wire to guide welding wire (diameter may select 1.2mm) to use the pulse welding electric current that current phase is identical, I with described second1、I2Peak pulse duration is the same, and the change in value scope of peak pulse duration is between 20%～50%.I1And I2Between pulse phase difference be 0 °, cold silk no power is sent directly in molten bath；
Situation 2, described first guides welding wire and described second to guide welding wire (diameter may select 1.2mm) to use the pulse welding electric current that current phase is contrary, I1、I2Peak pulse duration is the same, and the change in value scope of peak pulse duration is between 20%～50%.I1And I2Between pulse phase difference be 180 ° (0-180 °), cold silk no power is sent directly in molten bath；
Situation 3, described first guides welding wire and described second to guide welding wire (diameter may select 1.2mm) to use constant current mode, first guides welding wire, the 2 opposite polarity Connection Modes of employing, can reduce in the case of big electric current, interfering with each other between electric arc, being conducive to welding process stably to carry out, cold silk no power is sent directly in molten bath.
Described first guides welding wire, described second guiding welding wire and described cold silk each to connect a set of cooling system, and described first guides welding wire, described second guiding welding wire and described cold silk to be provided with respective protective gas and water-cooling channel.But described first guides welding wire and described second to guide welding wire each to connect a set of wire feed system and the source of welding current, and be connected by control line between two sources of welding current, it is achieved described first guides welding wire and described second to guide the different impulse phases between welding wire to control.Described cold silk connects the most alone a set of wire feed system, is sent directly in molten bath.The two poles of the earth of the described source of welding current are connected with welding wire feeding mechanism and workpiece to be welded respectively.
Current sensor and voltage sensor can also be included, for measuring electric current and the voltage signal of source of welding current output in welding system.
When welding, first the two poles of the earth of the source of welding current are connected with welding wire and workpiece to be welded respectively；Next is respectively provided with the first guiding welding wire, the preset voltage value of 2, pre-set current value, speed of welding and the wire feed rate of cold silk, and is configured mode of operation, the output pulse current phase relation of two welding machines at the control panel of the main source of welding current；Finally, welding.Wherein
Described first guiding welding wire and described second guides the predeterminated voltage of welding wire to be 18-32V.
Described first guiding welding wire and described second guides the predetermined current of welding wire to be 80A-220A.
Described speed of welding is 0.4-1.2m/min.
Described cold silk wire feed rate is 0.8-2.2m/min.
Described pulse current phase contrast is: 0 °-180 °.
Above-mentioned three wire bond rifles, welding system and method application in gas shielded arc welding or submerged-arc welding.
The invention have the benefit that
1. compared with traditional twin-wire MIG welding, twin arc and cold silk Combined Welding are largely added by the addition of cold silk and weld deposition rate, can make molten wide increase by 40%～85%, and fusion penetration increases by 8%～20%, and reinforcement increases by 10%～25%.
2. compared with traditional twin-wire MIG welding, twin arc improves with the arriving of welding process stability of cold silk MAG weldering, and cold silk serves calm molten bath in welding process, increases molten bath viscosity, thus reduce owing to high-energy input causes molten bath acutely to roll, add the stability of welding process.The addition of the coldest silk also acts the effect reducing thermal weld stress, it is achieved that welding efficiency is taken into account with welding quality simultaneously.
3., by controlling the phase relation between two electric arcs, it is achieved that being in communication with each other between two electric arcs, reduce the probability that two electric arc interference occur in welding process, it is achieved that stabilized welding process.
Accompanying drawing explanation
Fig. 1 is welding wire locus schematic diagram (1) of the inventive method, and at the projection relation in XOY face, for the projection of welding wire, L is in ignition tip end plane, and first guides welding wire and second to guide the distance between the ignition tip of welding wire place；
Fig. 2 is welding wire locus schematic diagram (2) of the inventive method, at the projection relation in ZOY face；
Fig. 3 is welding wire locus schematic diagram (3) of the inventive method, and first guides welding wire, 2 coincidences, only display the first guiding welding wire, at the projection relation in ZOX face；
Fig. 4 is welding current waveform figure (1), wherein I in the present invention1It is the welding current of the first guiding welding wire, I2It it is the welding current of the second guiding welding wire；
Fig. 5 is welding current waveform figure (2), wherein I in the present invention1It is the welding current of the first guiding welding wire, I2It it is the welding current of the second guiding welding wire；
Fig. 6 is welding current waveform figure (3), wherein I in the present invention1It is the welding current of the first guiding welding wire, I2It it is the welding current of the second guiding welding wire；
Fig. 7 is the perspective view of present system.
Detailed description of the invention
Below by specific embodiment, technical scheme is further described.
nullTwin arc and cold silk pulse composite welding three wire bond rifle，Including torch body、First guides welding wire contact tube、First guides welding tip、Second guides welding wire contact tube、Second guides welding tip、Cold silk contact tube、Cold silk ignition tip、First guides welding wire、Second guides welding wire and cold silk，The first guiding welding wire contact tube it is provided with in torch body、Second guides welding wire contact tube and cold silk contact tube，First guides welding wire contact tube and first to guide welding tip to be connected，Second guides welding wire contact tube and second to guide welding tip to be connected，Welding wire it is provided with in contact tube，Cold silk contact tube is connected with cold silk ignition tip，First guides welding wire to be arranged in the first guiding welding wire contact tube，Second guides welding wire to be arranged in the second guiding welding wire contact tube，Cold silk is arranged in cold silk contact tube，Cold silk contact tube and first guides welding wire and second to guide welding wire on subpoint is equilateral triangle three summits of surface of the work，First guides welding wire and second to guide welding wire distance between the subpoint of surface of the work to be 10-15mm，Cold silk contact tube、First guides welding wire and second to guide welding wire to be 3-10 ° with the angle of torch body axis direction，It is arranged on the first guiding welding wire contact tube and second along welding direction cold silk contact tube and guides the rear of welding wire contact tube.
First guides welding wire and second to guide welding wire distance between the subpoint of surface of the work to be 12mm.
Cold silk contact tube, the first guiding welding wire and second guide welding wire to be 7 ° with the angle of torch body axis direction.
nullTwin arc and cold silk pulse are combined welding system and method，As shown in Figures 1 to 3，System use above-mentioned by the first guiding welding wire、Second guides the three wire bond rifles that welding wire and cold silk integrate，First guides welding wire、Second guides welding wire and cold silk to insulate to each other，Circular row is distributed on same circumference，First guides welding wire、Second guiding welding wire and three summits that cold silk subpoint on the surface of the workpiece is equilateral triangle，First guides welding wire and second to guide between welding wire、First guides between welding wire and cold silk and second to guide between welding wire and cold silk distance L (distances of ignition tip central authorities) between subpoint be 12mm，First guides welding wire and second to guide welding wire and cold silk to gather to the torch body axis of described three wire bond rifles，And be 7 ° with the angle of torch body axis direction，First guides welding wire and second to guide welding wire to be connected with first source of welding current and second source of welding current respectively，Cold silk is connected with wire-feed motor.
Technique scheme is utilized to carry out soldering test.Welding system includes: contravariant pulse MIC/MAG arc-welding machine (3, this welding machine is that power supply is integrated with wire-feed motor), model is PulseMIG 350Y, three wire bond rifles (1), Panasonic's water cooling unit (1), angle and the adjustable welding gun fixture in position (1), linear stage (1).Additionally, also include the welding auxiliary equipments such as gas cylinder air valve, remote-control box.
Embodiment: use twin arc and cold silk pulse to be combined welding method, implements disk diffusion method test, is embodied as step and plays as follows:
Welding process basic step:
(1) connecting equipment (including primary system component and acquisition system equipment) according to position shown in Fig. 4, accessing frequency is the power supply of power frequency 50Hz；
(2) regulate the mode of operation of two PulseMIG 350, by front control panel the pulse working mode of two welding machines is adjusted to one main one from, i.e. guided by main welding machine and send out pulse signal from welding machine；
(3) predetermined current and voltage, predetermined current scope: 80～220A, the predetermined voltage range: 18～32V of two welding machines are regulated；
(4) two welding machine corresponding impulse waveform inputs of regulation, attainable impulse waveform exports as shown in Fig. 46；
(5) regulate the wire feed rate of cold silk, in the range from 0.8～2.2m/min, regulate speed of welding, in the range from 0.4～1.2m/min；
(6) regulating the position of welding gun, make welding direction be perpendicular to the line of two consumable electrodes, i.e. two electric arcs before being listed in, cold silk is rear；
(7) welding, two electric arcs be listed in front mutually coordinated during this, cold silk is rear and rely primarily on the heat fusing self in molten bath.
Table 2 twin arc and cold silk pulse composite welding welding parameter
In the case of above-mentioned, first guiding welding wire and second guides the preset voltage value of welding wire to be 18～32V, pre-set current value is 80～220A, speed of welding is 0.4～1.2m/min, cold silk wire feed rate is 0.8～2.2m/min, peak pulse duration excursion is 20%～50%, and compared with traditional twin-wire MIG welding, twin arc and cold silk Combined Welding are largely added by the addition of cold silk and weld deposition rate.
Above the present invention has been done exemplary description; should be noted that; in the case of without departing from the core of the present invention, any simple deformation, amendment or other those skilled in the art can not spend the equivalent of creative work to each fall within protection scope of the present invention.

Claims (4)

1. twin arc and cold silk pulse complex welding method, it is characterized in that, use twin arc to be combined welding system with cold silk pulse to weld, first guides welding wire, the second equilateral triangle guiding welding wire and cold silk subpoint on the surface of the workpiece to be formed to be positioned in molten bath, and it is arranged on the described first rear guiding welding wire and described second guiding welding wire along silk cold described in welding direction, guide welding wire and described second to guide the out of phase relation of pulse current on welding wire according to described first, can be divided into three kinds of situations:
Situation 1, described first guides welding wire to guide welding wire to use the pulse welding electric current that current phase is identical, I with described second1、I2Peak pulse duration is the same, and the change in value scope of peak pulse duration is between 20% 50%.I1And I2Between pulse phase difference be 0 °, cold silk no power is sent directly in molten bath；
Situation 2, described first guides welding wire and described second to guide welding wire to use the pulse welding electric current that current phase is contrary, I1、I2Peak pulse duration is the same, and the change in value scope of peak pulse duration is between 20% 50%.I1And I2Between pulse phase difference be 180 °, cold silk no power is sent directly in molten bath；
Situation 3, described first guides welding wire and described second to guide welding wire to use constant current mode, first guides welding wire, the 2 opposite polarity Connection Modes of employing, to reduce in the case of big electric current, interfering with each other between electric arc, being conducive to welding process stably to carry out, cold silk no power is sent directly in molten bath；
nullTwin arc and cold silk pulse are combined welding system and use the first guiding welding wire、Second guides the three wire bond rifles that welding wire and cold silk integrate，Described first guides welding wire、Described second guides welding wire and described cold silk to insulate to each other，Circular row is distributed on same circumference，Described first guides welding wire、Described second guides welding wire and described cold silk subpoint is equilateral triangle three summits on the surface of the workpiece，Described first guides welding wire and described second to guide between welding wire、Described first guides between welding wire and described cold silk and described second to guide between welding wire and described cold silk distance L between subpoint be 10-15mm，Described first guides welding wire and described second to guide welding wire and described cold silk to gather to the torch body axis of described three wire bond rifles，And it is 3-10 ° with the angle of described torch body axis direction，Described first guides welding wire to guide welding wire to be connected with first source of welding current and second source of welding current respectively with described second，Described cold silk is connected with wire-feed motor；nullDescribed three wire bond rifles include torch body、First guides welding wire contact tube、First guides welding tip、Second guides welding wire contact tube、Second guides welding tip、Cold silk contact tube、Cold silk ignition tip、First guides welding wire、Second guides welding wire and cold silk，It is provided with described first in described torch body and guides welding wire contact tube、Described second guides welding wire contact tube and described cold silk contact tube，Described first guides welding wire contact tube to guide welding tip to be connected with described first，Described second guides welding wire contact tube to guide welding tip to be connected with described second，It is provided with welding wire in described contact tube，Described cold silk contact tube is connected with described cold silk ignition tip，Described first guides welding wire to be arranged in described first guiding welding wire contact tube，Described second guides welding wire to be arranged in described second guiding welding wire contact tube，Described cold silk is arranged in described cold silk contact tube，Described cold silk contact tube guides welding wire and described second to guide welding wire on subpoint is equilateral triangle three summits of surface of the work with described first，Described first guides welding wire and described second to guide welding wire distance between the subpoint of surface of the work to be 10-15mm，Described cold silk contact tube、Described first guides welding wire and described second to guide welding wire to be 3-10 ° with the angle of described torch body axis direction，Being arranged on described first along silk contact tube cold described in welding direction guides welding wire contact tube and described second to guide the rear of welding wire contact tube.
Twin arc the most according to claim 1 and cold silk pulse complex welding method, it is characterised in that described first guides welding wire and described second to guide welding wire distance between the subpoint of surface of the work to be 12mm.
Twin arc the most according to claim 1 and cold silk pulse complex welding method, it is characterised in that described cold silk contact tube, described first guiding welding wire and described second guide welding wire to be 7 ° with the angle of described torch body axis direction.
Twin arc the most according to claim 1 and cold silk pulse complex welding method, it is characterised in that described first guiding welding wire and described second guides the predeterminated voltage of welding wire to be 18-32V；Described first guiding welding wire and described second guides the predetermined current of welding wire to be 80A-220A；Described speed of welding is 0.4-1.2m/min；Described cold silk wire feed rate is 0.8-2.2m/min, and pulse current phase contrast is 0 °-180 °.
CN201610193214.4A 2015-01-23 2015-01-23 Method of compound welding twin arcs and cold wire pulse Pending CN105817752A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110497065A (en) * 2019-08-30 2019-11-26 大连理工大学 A kind of three gas shield indirect arc welding method, apparatus of Variable Polarity and its application
CN114939711A (en) * 2022-06-16 2022-08-26 盐城工学院 Welding device and method for single-wire and double-wire consumable electrode arc cross coupling

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002219571A (en) * 2001-01-19 2002-08-06 Daihen Corp Control method for three electrode arc welding
JP2004261839A (en) * 2003-02-28 2004-09-24 Kobe Steel Ltd Multiple electrode gas shielded arc welding method
CN103028820A (en) * 2012-12-20 2013-04-10 天津大学 Four-wire-integrated high-speed welding system and method
DE102012217669A1 (en) * 2012-09-27 2014-03-27 Siemens Aktiengesellschaft Gas metal arc-narrow gap welding, comprises simultaneously using two arc plasma leading and melting welding wires and supplying third non plasma arc leading welding wire such that process energy welding wires melts the third welding wire
CN104093516A (en) * 2011-12-23 2014-10-08 依赛彼公司 An arc welding head and a welding arrangement

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002219571A (en) * 2001-01-19 2002-08-06 Daihen Corp Control method for three electrode arc welding
JP2004261839A (en) * 2003-02-28 2004-09-24 Kobe Steel Ltd Multiple electrode gas shielded arc welding method
CN104093516A (en) * 2011-12-23 2014-10-08 依赛彼公司 An arc welding head and a welding arrangement
DE102012217669A1 (en) * 2012-09-27 2014-03-27 Siemens Aktiengesellschaft Gas metal arc-narrow gap welding, comprises simultaneously using two arc plasma leading and melting welding wires and supplying third non plasma arc leading welding wire such that process energy welding wires melts the third welding wire
CN103028820A (en) * 2012-12-20 2013-04-10 天津大学 Four-wire-integrated high-speed welding system and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110497065A (en) * 2019-08-30 2019-11-26 大连理工大学 A kind of three gas shield indirect arc welding method, apparatus of Variable Polarity and its application
CN110497065B (en) * 2019-08-30 2021-03-19 大连理工大学 Variable-polarity three-wire gas-shielded indirect arc welding method and device and application thereof
CN114939711A (en) * 2022-06-16 2022-08-26 盐城工学院 Welding device and method for single-wire and double-wire consumable electrode arc cross coupling
CN114939711B (en) * 2022-06-16 2023-12-26 盐城工学院 Welding device and method for single-wire and double-wire consumable electrode arc diagonal coupling

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