WO2017029783A1 - Procédé de commande de soudage à l'arc - Google Patents

Procédé de commande de soudage à l'arc Download PDF

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Publication number
WO2017029783A1
WO2017029783A1 PCT/JP2016/003604 JP2016003604W WO2017029783A1 WO 2017029783 A1 WO2017029783 A1 WO 2017029783A1 JP 2016003604 W JP2016003604 W JP 2016003604W WO 2017029783 A1 WO2017029783 A1 WO 2017029783A1
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WO
WIPO (PCT)
Prior art keywords
current
welding
droplet
arc
arc welding
Prior art date
Application number
PCT/JP2016/003604
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English (en)
Japanese (ja)
Inventor
昂裕 野口
海斗 松井
将史 藤原
将 古和
篤寛 川本
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to JP2017535227A priority Critical patent/JP6757892B2/ja
Priority to CN201680028493.7A priority patent/CN107614181B/zh
Publication of WO2017029783A1 publication Critical patent/WO2017029783A1/fr

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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
    • B23K9/06—Arrangements or circuits for starting the arc, e.g. by generating ignition voltage, or for stabilising the arc
    • B23K9/073—Stabilising the arc
    • 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
    • B23K9/095—Monitoring or automatic control of welding parameters
    • 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
    • B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
    • 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

Definitions

  • the present invention relates to an arc welding control method for performing welding by generating an arc between a welding wire that is a consumable electrode and a base material that is a workpiece.
  • arc welding In which welding is performed by generating an arc between the welding wire and the base material, when the critical current value is exceeded, the droplet transfer form is spray transfer.
  • a welding method in which a peak current higher than the critical current value and a base current lower than the critical current value for maintaining the arc are alternately repeated is called pulse arc welding, which is more than direct current spray transfer welding.
  • the spray transfer can be performed with a low average current.
  • the droplet transfer is performed during the base current period in which the influence of the arc force is least. Therefore, it is possible to greatly reduce spatter.
  • the pulse arc welding method is restricted by the composition of the shielding gas. And when the ratio of the carbon dioxide gas in shielding gas exceeds 30%, the sputter
  • spatter When spatter occurs, it adheres to the base material, and when spatter enters the movable part of the product that operates, it limits the movable range of the product and significantly reduces the product value. For this reason, the post process which removes a sputter
  • FIG. 4 is a diagram for explaining a pulse arc welding control method using a shielding gas containing carbon dioxide as a main component, and shows an arc process, a welding voltage V, and a welding current I.
  • the output of the peak current Ip is started and the peak time Tp is started. From the melting start time t3, melting of the tip of the welding wire is started, and in the droplet growth period T4, the droplet grows at the tip of the welding wire, constriction occurs, and welding starts to be detached. The droplet is detached at the time t5 when the droplet is detached, and the droplet separation is completed. Pulse arc welding that repeats from the melting start time t3 to the droplet detachment time t5 is performed. Since the arc length is increased in a short time at the droplet detachment time t5 when the droplet detaches, the welding voltage V increases sharply.
  • the welding current I is reduced from the peak current Ip to a predetermined reduction current Ir lower than the peak current Ip, thereby preventing spattering.
  • the welding current I is maintained at the reduction current Ir in the decrease period TM, and after the elapse of the decrease period TM, the welding current I is increased to the original peak current Ip to melt the tip of the wire.
  • the base current Ib starts to be output, and the base time Tb starts (see, for example, Patent Document 1).
  • the arc welding device is controlled by the arc welding control method so that a part of the welding wire is melted.
  • the time at which the droplet has separated from the welding wire is detected.
  • the welding current is reduced to a reduced current.
  • the welding current is increased to the predetermined current after the predetermined current decreasing period has elapsed since the welding current was decreased to the decreased current.
  • This arc welding control method can reduce spatter and obtain a bead with a uniform width.
  • FIG. 1 is a schematic configuration diagram of an arc welding apparatus according to an embodiment.
  • FIG. 2 is a diagram showing an arc welding control method in the embodiment.
  • FIG. 3 is a diagram showing another arc welding control method in the embodiment.
  • FIG. 4 is a diagram showing a conventional pulse arc welding control method.
  • FIG. 1 is a schematic configuration diagram of an arc welding apparatus 1001 according to the embodiment.
  • An arc welding apparatus 1001 converts a primary rectification unit 2 that rectifies AC power input from an input power source 1, a switching unit 3 that controls welding output, and inputs the output of the switching unit 3 to convert it into power suitable for welding.
  • the transformer 4 is provided.
  • the arc welding apparatus 1001 includes a secondary rectification unit 5 that rectifies the secondary output of the transformer 4, a reactor 6 that smoothes the output of the secondary rectification unit 5, a drive unit 7 that drives the switching unit 3, and a welding current.
  • Welding current detection unit 8 for detecting welding welding voltage detection unit 9 for detecting welding voltage, and detachment of droplets at the tip of welding wire 18 based on the outputs of welding current detection unit 8 and welding voltage detection unit 9
  • a droplet detachment detecting unit 10 for detecting.
  • the arc welding apparatus 1001 further includes a welding condition setting unit 13 and a storage unit 12.
  • the welding condition setting unit 13 sets welding conditions such as a set current, a set voltage, a wire feed amount, a shield gas type, a wire type, and a wire diameter.
  • the storage unit 12 stores various parameters such as information set by the welding condition setting unit 13 and a reactor value of electronic reactor control for each wire feed speed.
  • the arc welding apparatus 1001 further includes an arc control unit 11.
  • the arc control unit 11 controls current and voltage at the time of arc generation based on outputs from the welding voltage detection unit 9, the droplet detachment detection unit 10, and the storage unit 12. Output a signal.
  • the drive unit 7 controls the switching unit 3 based on the output of the arc control unit 11.
  • the welding wire 18 is fed by a feeding motor controlled by a wire feeding unit 19.
  • a welding power is supplied to the welding wire 18 via a tip 15 provided on the torch 14, and an arc 20 is generated between the welding wire 18 and the base material 17 to perform welding.
  • each component which comprises the arc welding apparatus 1001 shown in FIG. 1 may each be comprised independently, and you may comprise a some composite part.
  • FIG. 2 shows an arc welding control method in the arc welding apparatus 1001.
  • the detection invalid period T6 is a period in which detection is not performed even when the threshold value for detection of departure is exceeded.
  • welding is performed by constant voltage control that is resistant to disturbances based on a set current Is and a set voltage Vs set by an operator.
  • the storage unit 12 stores a feeding amount that is a speed at which the welding wire 18 is fed.
  • the feed amount of the welding wire 18 is determined by the set current Is, and is experimentally derived in advance for the set current Is.
  • the storage unit 12 stores the feeding amount of the welding wire 18.
  • the storage unit 12 also stores a plurality of values of welding control parameters corresponding to a plurality of values of the feeding amount of the wire 18, respectively.
  • the welding control method in the embodiment in arc welding with constant voltage control in a spray transition state, based on a set voltage Vs for setting the output of the welding voltage V and a set current Is for setting the output of the welding current I,
  • the welding output which is the welding voltage V and the welding current I is controlled.
  • the welding current I is concavely curved so as to have a minimum value IL by initiating and accelerating the melting of the protruding peak current Ip when the droplet 23 is detached and the welding wire 18.
  • the melting current Ig that continuously changes is alternately repeated.
  • the welding output is controlled so that the current fluctuation width It which is the difference between the peak current Ip and the minimum value IL of the melting current Ig becomes a predetermined value, and welding is performed.
  • the current fluctuation width It is set so that the transition period Tt from when the droplet 23 is detached from the welding wire 18 until the welding wire 18 is melted and then the droplet 23 is separated from the welding wire 18 is within a predetermined range. Adjusted. In other words, the current fluctuation width It is adjusted so that the droplet 23 is detached from the welding wire 18 only once per transition period Tt.
  • the current fluctuation width It is within a range of ⁇ 25% or more and ⁇ 45% or less of the center value, more preferably the center value, centering on the average value of the moving average of the welding current I or the center value which is the set current Is.
  • the welding output is controlled so as to be ⁇ 25% or more and ⁇ 30% or less.
  • the peak current Ip is larger than the center value of the welding current I by a value not less than 25% and not more than 45% of the above-mentioned center value of the welding current I, and the minimum value IL of the melting current Ig is the welding current I.
  • the current fluctuation width It is controlled so that it is smaller than the center value of the welding current I by 25% or more and 45% or less of the center value.
  • the peak current Ip is larger than the average value of the welding current I by a value not less than 25% and not more than 30% of the average value of the welding current I
  • the minimum value IL of the melting current Ig is the average value of the welding current I.
  • the current fluctuation width It is controlled so that it is smaller than the average value of the welding current I by 25% or more and 30% or less.
  • the predetermined period for calculating the moving average is an integral multiple of the transition period Tt.
  • the transition period Tt adjusted by the current fluctuation width It is 15 msec or more and 35 msec or less, more preferably 15 msec or more and 20 msec or less.
  • the feed amount of the welding wire 18 that is sufficiently in the spray transfer state is selected.
  • the wire feed amount of the welding wire 18 is determined by the set current Is.
  • the droplet 23 at the tip 18P of the welding wire 18 begins to melt and grow, and after the growth period T4 during which the droplet 23 grows, the droplet 23 becomes the tip 18P at the tip 18P of the welding wire 18. Leave.
  • the welding current I when the droplet 23 is detached is large, the arc reaction force becomes large. Since the molten droplet 23 is pushed back in the direction toward the welding wire 18 by the arc reaction force, the molten droplet 23 does not detach stably and is spattered and scattered. Therefore, the droplet separation time t5 when the droplet 23 is detached is detected, and immediately after the droplet separation time t5 is detected, the welding current I is reduced, the arc reaction force is suppressed, and the spatter is reduced.
  • the droplet detachment detecting unit 10 determines that the droplet 23 is welded to the welding wire 18 according to the welding resistance R or the change amount per unit time of the welding resistance R, or the absolute value of the welding voltage V or the change amount per unit time of the welding voltage V. Detecting the separation from the tip 18P of the liquid droplets, the droplet separation time t5 is detected.
  • the droplet detachment detecting unit 10 detects that the droplet 23 has detached from the change amount of the welding resistance R per unit time for the following reason.
  • the welding voltage V in the spray transfer state changes rapidly due to the variation of the arc length L20. Therefore, when the detachment of the droplet 23 is detected using the amount of change of the welding voltage V per unit time or the absolute value of the welding voltage V, erroneous detection due to pulsation, which is a minute fluctuation of the welding voltage V, frequently occurs. Since the welding resistance R does not change suddenly but changes gradually due to pulsation, the occurrence of erroneous detection can be suppressed.
  • the welding resistance R has little pulsation (steep fluctuation)
  • the welding current I is sharply reduced from the peak current Ip before the droplet 23 detaches to the reduced current Ir. Then, the reduced current Ir is maintained for the current drop period T1.
  • the value of the decrease current Ir may be experimentally determined in advance as a value at which the tip 18P of the welding wire 18 after the output of the decrease current Ir smoothly melts regardless of the stable region of the current fluctuation width It. When the decrease current Ir becomes small, the amount of heat input to the welding wire 18 becomes insufficient, so that the droplet 23 does not begin to melt smoothly and the arc 20 becomes unstable. Further, if the reduction current Ir is large, the effect of reducing the sputtering is weakened.
  • the constant current control pulsed arc welding method shown in FIG. 4 can reduce spatter because the tip of the welding wire does not short-circuit when the arc length is slightly larger than the diameter of the droplet. It is. However, during welding, the distance between the tip of the welding wire and the base material may be shortened due to disturbances such as fluctuations in the protruding length of the welding wire protruding from the tip and displacement of the base material. Constant current control is easily influenced by disturbances such as fluctuations in protrusion length and misalignment of the base material. In particular, when the distance between the tip of the welding wire and the base material is shortened, the tip of the welding wire and the base material are short-circuited before the droplets are detached.
  • a large amount of spatter is generated when the current when the short circuit occurs is high.
  • Spray transfer welding in pulsed arc welding using carbon dioxide gas as a shielding gas has a particularly large arc reaction force, and droplets grown at the tip of the welding wire are pushed back in the direction of the welding wire. Therefore, since the droplets do not detach stably, the occurrence frequency of short circuit with the base material is high, and a large amount of spatter is scattered.
  • the undershoot of the current generated when outputting the reduced current Ir converges within the current reduction period T1.
  • the welding current I is increased to the predetermined current If in the current increase period T2 with a predetermined slope ⁇ .
  • the current drop period T1 is shorter than the current rise period T2.
  • the current drop period T1 becomes longer, the period during which the current is lower becomes longer and the arc becomes unstable.
  • the current rise period T2 is shortened and the angle ⁇ of the rise of the welding current I is increased, the current flows through the welding wire 18 at a stretch and red heat is generated, and the force pushing the molten pool becomes too large and the occurrence of spatter increases.
  • the current increase period T2 be a period in which the spattering of the spatter due to melting and detachment of the droplets 23 is suppressed and the welding current I is increased to a predetermined current If ”.
  • the inclination ⁇ and the current rise period T2 are set, and the predetermined current If after the detection of the detachment of the droplet 23 is detected is melted. It is made substantially the same as the peak current Ip before the detection of the drop 23 detachment.
  • constant current control is performed in a predetermined period Tft that is the sum of the current decrease period T1 and the current increase period T2, and constant voltage control is performed in the period T7.
  • Switching from constant current control to constant voltage control stabilizes constant current control during a predetermined period Tft, which is a period during which spatter is reduced, and constant voltage control during period T7 during which the droplet 23 is grown and the arc is stabilized. As soon as the welding current I rises to the predetermined current If, it is carried out.
  • the welding current I alternately repeats the peak current Ip and the melting current Ig curved in a concave shape.
  • the welding current I is sharply lowered after the droplet detachment time t5 when the detachment of the droplet 23 is detected, and then increases to a predetermined current If in a current rising period T2 with a predetermined slope ⁇ .
  • the welding current I is increased in the current rising period T2 with a predetermined slope ⁇ so that the predetermined current If is substantially the same as the peak current Ip before the detection of the detachment of the droplet 23, and at least the current fluctuation width It is set. Control. Thereby, generation
  • the predetermined gradient ⁇ that increases to the predetermined current If during the current rising period T2 is smaller than the gradient ⁇ when the gradient that sharply decreases the welding current I after the droplet detachment time t5 is defined as the gradient ⁇ . .
  • FIG. 3 shows another arc welding control method in the arc welding apparatus 1001, and the welding wire 18 of the arc welding apparatus 1001, the welding current I, the welding voltage V, and the welding resistance which is the ratio of the welding voltage V to the welding current I. R.
  • the same parts as those in FIG. In the present embodiment the feeding amount of the welding wire 18 that is sufficiently in the spray transfer state is selected.
  • the welding current I is kept constant from the time when it increases to a predetermined current If until the time point t5 at which the droplet 23 is detached.
  • the feeding amount of the welding wire 18 is determined by the set current Is. Also in the operation shown in FIG. 3, as in FIG.
  • the welding current I is sharply lowered after the droplet detachment time t5 when the detachment of the droplet 23 is detected, and then the predetermined current is supplied during the current rising period T2 with the predetermined inclination ⁇ . Increases to If. Control is performed by increasing the welding current I during the current rising period T2 with a predetermined slope ⁇ so that the predetermined current If becomes substantially the same as the peak current Ip before detection of the detachment of the droplet 23. Thereby, generation
  • the storage unit 12 may store an inductance value of electronic reactor control as a welding control parameter.
  • the constant voltage control current of spray transfer welding using carbon dioxide gas as the shielding gas can be adjusted by adjusting the inductance value, for example.
  • the current fluctuation width It is controlled by changing the inductance value related to the welding output.
  • the inductance value is a sum of the reactor 6 and the electronic reactor value of the electronic reactor control stored in the storage unit 12, and an output control signal based on this inductance value is output to the drive unit 7.
  • the welding current I having the current fluctuation width It shown in FIG. 2 is easier to control the detachment of the spray transfer droplet 23 than using the constant welding current I shown in FIG. This is because by controlling the current fluctuation width It of the curved waveform, the welding current I is reduced when the droplet 23 grows at the tip 18P of the welding wire 18, and the welding current is increased when the droplet 23 is detached. Because it is possible to do.
  • the melting current Ig becomes small, so that the amount of heat input to the welding wire 18 when the droplet 23 grows is insufficient. Therefore, the distance between the tip 18P of the welding wire 18 fed toward the base material 17 and the base material 17 is shortened when the droplet 23 grows. Therefore, the droplet 23 does not sufficiently grow at the tip 18P of the welding wire 18 and the tip 18P of the wire 18 does not melt sufficiently, and the tip 18P of the welding wire 18 and the base material 17 are not separated before the droplet 23 is detached. Short circuit. As a result, the arc 20 becomes unstable and spatter occurs.
  • the current fluctuation width It is too small, the minimum value IL of the melting current Ig becomes large, so that the arc reaction force when the droplet 23 grows becomes large. Therefore, since the droplet 23 at the tip 18P of the melted wire 18 is pushed back toward the welding wire 18, the arc 20 becomes unstable and is scattered from the tip 18P of the welding wire 18 to be sputtered. Therefore, by optimizing the current fluctuation width It, the transition period Tt from when the welding wire 18 starts to melt until the droplet 23 is released is stabilized, so that the arc 20 is stabilized.
  • the current fluctuation width It is adjusted by constant voltage control, and the welding current I is controlled.
  • the curved welding current I shown in FIG. 2 is used, the droplet 23 grows stably, and the droplet 23 can be detached from the welding wire 18 at a stable cycle.
  • the arc 20 is stabilized and the arc length L20 is controlled to be always constant.
  • the arc length L20 is constant, fluctuations in the arc length L20 are suppressed even when disturbances such as fluctuations in the protrusion length L18 and positional deviation of the base material 17 occur, so that a short circuit is suppressed and spattering occurs. And a bead with a uniform width can be obtained.
  • the detachment of the droplet 23 is detected, and immediately after the detachment is detected, the welding current I is reduced to the reduced current Ir. Thereafter, after the welding current I reaches a predetermined current If through a current drop period T1 and a current rise period T2, a melting current Ig that curves in a concave shape is output.
  • the welding current I is sharply reduced from the peak current Ip to the reduced current Ir immediately after the droplet detachment time t5, so that the droplet 23 is released.
  • the arc reaction force at the time can be suppressed, and the spatter generated when the droplet 23 is released can also be reduced.
  • the welding control is switched from constant current control to constant voltage control, and hunting of the welding current I is likely to occur.
  • the inductance value is small, and hunting is more easily promoted than the constant welding current I shown in FIG. Accordingly, hunting of the value of the welding resistance R tends to occur easily.
  • the detachment of the droplet 23 is the amount of change per unit time of the welding resistance R or the welding resistance R, or the welding voltage V or the unit time of the welding voltage V. It is detected based on the amount of change per hit.
  • the constant current control is performed, and after the predetermined period Tft has passed, the control is switched to the constant voltage control, that is, when the predetermined period Tft has passed. From the time when the welding current I reaches the predetermined current If, the detection invalid period T6 does not detect the detachment of the droplet 23. Thereby, the droplet 23 can be detected stably by the welding resistance R, a micro short circuit can be reduced, and spatter can be reduced.
  • the arc 20 is unstable and sputtered without being restricted by the composition of the shielding gas containing carbon dioxide as a main component unlike the conventional pulsed arc welding method. Even in the case of spray transfer welding using a gas containing carbon dioxide as a main component, a stable arc 20 with low spatter can be obtained.
  • the arc welding control method in the spray transfer state uses the arc welding apparatus 1001 that outputs the welding current I to the welding wire 18.
  • the arc welding apparatus 1001 is controlled so as to melt a part of the welding wire 18.
  • a droplet separation time t ⁇ b> 5 when the droplet 23 has separated from the welding wire 18 is detected.
  • the welding current I is reduced to the reduction current Ir.
  • the welding current I is reduced to the reduction current Ir, it is increased to the predetermined current If after a predetermined current decrease period T1 has elapsed.
  • constant current control When controlling the arc welding apparatus 1001 so that a part of the welding wire 18 is melted, constant current control may be performed from the droplet separation time t5, and then the constant current control may be switched to constant voltage control.
  • the operation for detecting that the droplet 23 has detached from the welding wire 18 is not performed during the predetermined detection invalid period T6 from the time when the predetermined current decrease period T1 has elapsed, and the predetermined detection invalid period T6 has elapsed. After that, the operation of detecting that the droplet 23 has detached from the welding wire 18 is performed.
  • the arc welding apparatus 1001 may be controlled so that the welding current I becomes a constant current until a part of the welding wire 18 is melted and the droplet 23 is detached from the welding wire 18.
  • the welding current I curves continuously so as to have a peak current Ip when the droplet 23 is detached from the welding wire 18 and a concave minimum value IL when starting and promoting melting of the welding wire 18.
  • the arc welding apparatus 1001 may be controlled so as to alternately repeat the changing melting current Ig.
  • the welding current I may be increased to the predetermined current If during the predetermined current rising period T2 with the predetermined slope ⁇ so that the predetermined current If becomes substantially the same as the peak current Ip.
  • the current fluctuation width It which is the difference between the peak current Ip and the minimum value IL of the melting current Ig is controlled.
  • the current fluctuation width It may be controlled by adjusting the predetermined slope ⁇ and the predetermined current rise period T2.
  • the current fluctuation range It may be adjusted around the set current Is by changing the value of the inductance related to the welding output.
  • the inductance may consist of an added value of a reactor and an electronic reactor value by electronic reactor control.
  • the arc welding apparatus 1001 may be controlled so that the welding current I repeats the peak current Ip and the melting current Ig based on the set voltage Vs that sets the output of the welding voltage V.
  • the drop current Ir may be smaller than the minimum value IL.
  • the predetermined current decrease period T1 may be shorter than the predetermined current increase period T2.
  • the arc length L20 is stabilized even when disturbance such as fluctuation of the protruding length L18 and displacement of the base material 17 occurs. Therefore, the workability of the operator is improved, the base material 17 can be welded with a uniform bead width, and spatters generated at the time of the detachment of the droplet 23 and a minute short circuit can be suppressed.
  • the arc length can be stabilized in the arc welding control method according to the present invention, it is useful for arc welding in a state where a disturbance occurs.

Abstract

L'invention concerne un dispositif de soudage à l'arc (1001) commandé de manière à faire fondre une partie d'un fil de soudage (18). Le temps de séparation de gouttelette (t5) lorsqu'une gouttelette (23) du fil de soudage (18) se sépare du fil de soudage (18) est détecté. Directement après le temps de séparation (t5) de la gouttelette de soudage, le courant de soudage (I) est réduit à un courant inférieur (Ir). Au cours de l'étape de réduction du courant de soudage (I) au courant inférieur (Ir), une augmentation à un courant prescrit (If) est effectuée après l'écoulement d'une période prescrite de réduction du courant (T1). Grâce à ce procédé de commande de soudage, les projections sont réduites et un joint de soudage avec une largeur uniforme peut être obtenu.
PCT/JP2016/003604 2015-08-17 2016-08-04 Procédé de commande de soudage à l'arc WO2017029783A1 (fr)

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JP2017535227A JP6757892B2 (ja) 2015-08-17 2016-08-04 アーク溶接制御方法
CN201680028493.7A CN107614181B (zh) 2015-08-17 2016-08-04 电弧焊接控制方法

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JP2015-160271 2015-08-17
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US20210107081A1 (en) * 2018-03-28 2021-04-15 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Gas shielded arc welding control method and control device
CN113727800A (zh) * 2019-04-22 2021-11-30 松下知识产权经营株式会社 电弧焊接控制方法和电弧焊接装置
CN114390956A (zh) * 2020-01-06 2022-04-22 松下知识产权经营株式会社 电弧焊接控制方法以及电弧焊接装置

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JP7394290B2 (ja) * 2019-06-06 2023-12-08 パナソニックＩｐマネジメント株式会社 溶接条件設定支援装置
CN114473145B (zh) * 2021-12-20 2024-04-16 上海工程技术大学 一种铝钢异质金属电弧焊接焊缝成形的控制方法

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