WO2017169900A1 - アーク溶接制御方法 - Google Patents
アーク溶接制御方法 Download PDFInfo
- Publication number
- WO2017169900A1 WO2017169900A1 PCT/JP2017/010902 JP2017010902W WO2017169900A1 WO 2017169900 A1 WO2017169900 A1 WO 2017169900A1 JP 2017010902 W JP2017010902 W JP 2017010902W WO 2017169900 A1 WO2017169900 A1 WO 2017169900A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat input
- period
- welding
- arc
- input period
- Prior art date
Links
Images
Classifications
-
- 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
- B23K9/0953—Monitoring or automatic control of welding parameters using computing means
-
- 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
- B23K9/0738—Stabilising of the arc by automatic re-ignition means
-
- 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
- B23K9/095—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
- B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
- B23K9/1006—Power supply
- B23K9/1012—Power supply characterised by parts of the process
-
- 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
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/124—Circuits or methods for feeding welding wire
- B23K9/125—Feeding of 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
- B23K9/16—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 disclosure relates to an arc welding control method in which an arc is generated between a welding wire that is a consumable electrode and a base material that is a welding target, and welding output control of short-circuit arc welding is performed.
- the arc length can be adjusted by switching pulse conditions such as pulse current and base current to two pulse current groups (see, for example, Patent Document 1).
- pulse conditions such as pulse current and base current
- two pulse current groups see, for example, Patent Document 1.
- an arc welding control method of the present disclosure uses a welding wire that is a consumable electrode, and a first heat input period including a first heat input amount and a second heat input with respect to an object to be welded.
- An arc welding control method for performing arc welding that periodically repeats a second heat input period consisting of an amount of heat input, characterized by the following. That is, the first heat input period and the second heat input period are each composed of a short circuit period and an arc period.
- the welding current after short circuit opening of the 2nd heat input period will be made lower than the current just before short circuit opening, and the arc of the 2nd heat input period
- the welding current in the period is set lower than the welding current in the arc period of the first heat input period.
- the sum of the energy of the product of the welding current and time in the arc period of the second heat input period is made lower than the sum of the energy that is the product of the welding current and time in the arc period of the first heat input period.
- the arc welding control method of this indication is the 2nd which consists of the 1st heat input period which consists of a 1st heat input, and the 2nd heat input with respect to a welding target object using the welding wire which is a consumable electrode.
- An arc welding control method for performing arc welding that periodically repeats the heat input period is characterized as follows. That is, the first heat input period and the second heat input period are each composed of a short circuit period and an arc period.
- the welding current in the arc period of the second heat input period is lower than the current immediately before the short circuit opening, and the arc period of the first heat input period is The welding current is set to be lower than the welding current, and is set at a predetermined rate relative to the welding current in the arc period of the first heat input period.
- the welding current during the arc period of the second heat input period is a constant current that is lower than the welding current during the arc period of the first heat input period, and is 30 A or more.
- the periodic repetition of the first heat input period and the second heat input period is performed once or more according to at least one of the plate thickness and the gap amount of the welding object,
- the first heat input period that is continuously performed five times or less and the second heat input period that is performed once are periodically repeated alternately.
- the welding wire is periodically fed at a predetermined cycle and amplitude alternately between forward feeding in the direction of the welding object and reverse feeding in the reverse direction. It is.
- a low heat input period that is a second heat input period for reducing the welding current after the short circuit is opened and a first heat input period in which the heat input amount is larger than the second heat input period are cycled.
- low heat input can be achieved while maintaining a stable arc, suppression of burn-out in thin plate welding and improvement of gap tolerance, prevention of undercut and reduction of strain during high-speed welding This makes it possible to improve the welding quality.
- FIG. 2 is a diagram showing a schematic configuration of the arc welding apparatus.
- the arc welding apparatus 20 performs welding by repeating an arc period Ta in an arc state and a short-circuit period Ts in a short circuit state between a welding wire 22 that is a consumable electrode and a workpiece 21 that is a welding object.
- the arc welding apparatus 20 includes a main transformer 2, a primary side rectification unit 3, a switching unit 4, a DCL (reactor) 5, a secondary side rectification unit 6, a welding current detection unit 7, and a welding voltage detection unit. 8, a short-circuit detector 9, a short-circuit open detector 10, a short-circuit / arc detector 11, and a wire feed speed controller 16.
- the output control unit 12 includes a short circuit control unit 13 and an arc control unit 14.
- the wire feed speed control unit 16 includes a wire feed speed detection unit 17, a calculation unit 18, and a forward / reverse feed switching timing control unit 19.
- the primary side rectification unit 3 rectifies the input voltage input from the input power source 1 outside the arc welding apparatus 20.
- the switching unit 4 controls the output of the primary side rectification unit 3 to an output suitable for welding.
- the main transformer 2 converts the output of the switching unit 4 into an output suitable for welding.
- the secondary side rectification unit 6 rectifies the output of the main transformer 2.
- a DCL (reactor) 5 smoothes the output of the secondary side rectification unit 6 to a current suitable for welding.
- the welding current detection unit 7 detects the welding current.
- the welding voltage detector 8 detects the welding voltage. Based on the output of the welding voltage detection unit 8, the short circuit / arc detection unit 11 determines whether the welding state is a short circuit state in which the welding wire 22 and the workpiece 21 are short-circuited, or the welding wire 22 and the workpiece. It is determined whether the arc is in an arc state where the arc 23 is generated.
- the short-circuit opening detection unit 10 detects the number of times that the short-circuit state is opened and the arc state is determined.
- the output control unit 12 outputs a control signal to the switching unit 4 to control the welding output.
- the short-circuit control unit 13 controls the short-circuit current that is the welding current during the short-circuit period when the short-circuit / arc detection unit 11 determines that the short-circuit state has occurred.
- the arc control unit 14 controls the arc current, which is a welding current during the arc period, when the short circuit / arc detection unit 11 determines that the arc state is present.
- the arc control unit 14 performs control to reduce the welding current during the second heat input period when the short circuit opening detection unit 10 detects the number of short circuits opened by the welding condition setting unit 15.
- the wire feed speed control unit 16 controls the wire feed unit 25 to control the feed speed of the welding wire 22.
- the wire feed speed detector 17 detects the wire feed speed. Based on the signal from the wire feed speed detection unit 17, the calculation unit 18 calculates an integrated amount of the feed amount of the welding wire 22 for a predetermined time.
- the forward / reverse switching timing control unit 19 controls the control signal for delaying the switching timing of the feeding of the welding wire 22 from the normal feeding to the reverse feeding based on the signal from the calculation unit 18 or the reverse feeding to the normal feeding. A control signal for delaying the switching timing to is output.
- the arc welding apparatus 20 is connected with a welding condition setting unit 15 and a wire feeding unit 25.
- the welding condition setting unit 15 is used for setting welding conditions in the arc welding apparatus 20.
- the wire feeding unit 25 controls the feeding of the welding wire 22 based on a signal from the wire feeding speed control unit 16.
- the welding output of the arc welding apparatus 20 is supplied to the welding wire 22 via the welding tip 24. Then, welding is performed by generating an arc 23 between the welding wire 22 and the workpiece 21 by the welding output of the arc welding apparatus 20.
- FIG. 1 is a diagram showing an output waveform by a consumable electrode type arc welding control method in the present embodiment.
- the first heat input period Th and the second heat input period Tc include a short circuit period Ts and an arc period Ta, respectively.
- the short circuit period Ts and the arc period Ta are alternately repeated in each of the first heat input period Th and the second heat input period Tc, the time variation of the welding current Aw and the welding voltage Vw, the welding wire 22
- the schematic diagram Ww of the droplet transfer state is shown.
- the first heat input period Th and the second heat input period Tc are alternately repeated.
- Each of the first heat input period Th and the second heat input period Tc includes a short circuit period Ts and an arc period Ta.
- the melting current Aw increases from a predetermined current value at the first current increase rate Aws1, and reaches a current value Awp at the bending point described below. Thereafter, the melting current Aw increases at a current increase rate Aws2 that is smaller than the current increase rate Aws1.
- the feeding speed of the welding wire 22 is negative, and the welding wire is fed backward.
- the welding wire 22 and the workpiece 21 are short-circuited, so that the welding voltage Vw becomes a value near 0 (V).
- the welding current Aw is temporarily reduced, and the welding voltage Vw is increased by opening the short-circuit. Further, the feeding speed Wf of the welding wire 22 is changed from negative to positive, and the feeding of the welding wire is switched from reverse feeding to normal feeding.
- the welding current Aw is increased to the peak current value Awa1 and is kept constant for a predetermined time.
- the welding current Aw is lowered to a predetermined value, and the welding wire 22 and the workpiece to be welded.
- the welding voltage Vw becomes a value near 0 (V)
- the feeding speed Wf of the welding wire 22 is changed from positive to negative, and the feeding of the welding wire is switched from normal feeding to reverse feeding. .
- the melting current Aw increases from a predetermined value at a predetermined current increase rate. Thereafter, the melting current Aw increases at a current increase rate Aws2.
- the feeding speed Wf of the welding wire 22 is negative, and the feeding of the welding wire is reversed.
- the welding wire 22 is short-circuited, and the melting current Aw at that time is defined as a current value Awa1a. Further, during the arc period Ta, the feeding speed Wf of the welding wire 22 is set to be positive, and the feeding of the welding wire is forwarded.
- (a) to (h) represent a droplet transfer state Ww in which the molten metal moves from the tip of the welding wire 22 that is a consumable electrode to the workpiece 21 side, and the first heat input.
- the state of the welding wire 22 from the period Th to the second heat input period Tc is shown.
- (A) shows the state of the welding wire 22 in the short circuit period Ts of the first heat input period Th.
- (B) shows the state of the welding wire 22 at the time of switching between the short circuit period Ts and the arc period Ta in the first heat input period Th.
- (C) And (d) shows the state of the welding wire 22 in the arc period Ta of the first heat input period Th.
- (C) shows the state of the welding wire 22 immediately after the value of the welding current Aw becomes Awa1. Further, (d) shows the state of the welding wire 22 immediately before the value of the welding current Aw drops from Awa1.
- (E) shows the state of the welding wire 22 in the short-circuit period Ts of the second heat input period Tc.
- (F) shows the state of the welding wire 22 at the time of switching between the short circuit period Ts and the arc period Ta in the second heat input period Tc.
- (G) and (h) show the state of the welding wire 22 in the arc period Ta of the second heat input period Tc.
- the transition from the arc period Ta of the first heat input period Th to the short circuit period Ts of the second heat input period Tc is performed by changing the welding current Aw of the arc period Ta of the first heat input period Th to the short circuit period Ts. It is lowered just before the transition to, and the occurrence of spatter at the time of short circuit is suppressed. If the influence of the occurrence of spatter at the time of the short circuit is small, the current immediately before the transition to the short circuit period Ts does not necessarily need to be further reduced immediately before.
- the droplet transfer state Ww in FIG. 1A is a molten pool (not shown) on the workpiece 21 after the short-circuit between the welding wire 22 and the workpiece 21 occurs. Has been moved to. At this time, the feeding of the welding wire 22 is mechanically urged to open the short circuit by performing the reverse feeding performed in the direction opposite to the normal feeding performed in the direction of the workpiece 21. Further, the welding current Aw in (a) is controlled so as to increase the welding current with the passage of time in order to open this short-circuit state.
- the welding current Aw is increased at a first current increase rate Aws1 in the short-circuit period Ts, and then is inclined more than the first current increase rate Aws1. Is increased at a moderate second current increase rate Aws2.
- the current value Awp at the time of switching from the first current increase rate Aws1 to the second current increase slope Aws2 is referred to as a bending point.
- the value of this inflection point is set to a value obtained experimentally in advance.
- the welding voltage Vw rises when the short circuit between the welding wire 22 and the workpiece 21 is released, and the short circuit is determined to be open.
- the droplet transfer state Ww in (b) causes a constriction phenomenon on the distal end side of the welding wire 22 due to the pinch effect, transfers the droplet 26, and is released from the short-circuit state.
- the control of the welding current Aw from (c) to (d) increases the welding current to a predetermined peak current value Awa1 during the arc period Ta. At this time, the welding wire 22 is fed in the normal direction of feeding the welding wire 22 in the direction of the workpiece 21.
- the amount of heat input is lower than the first heat input period Th passing through (a), (b), (c) and (d) in FIG. 1 and the first heat input period Th.
- the amount of heat input to the workpiece 21 is reduced by performing welding by periodically repeating the second heat input period Tc passing through (e), (f), (g), and (h).
- FIG. 1 after the droplet 26 at the tip of the welding wire 22 is grown through (a), (b), (c) and (d) in the first heat input period Th, FIG.
- the droplet transfer state Ww in (e) is the same as the droplet transfer state Ww of (a).
- the droplet 26 of the wire 22 is transferred to the molten pool.
- the welding current Aw in (e) is controlled so as to increase the welding current with the passage of time in order to open the short circuit state, similarly to the form of increase in the welding current Aw in (a).
- the droplet transfer state Ww when the short-circuit opening is determined by the welding voltage Vw in (f) of the second heat input period Tc is similar to the droplet transfer state Ww in (b) due to the pinch effect.
- a constriction phenomenon occurs at the tip of 22 and the droplets 26 are transferred to the molten pool, and are released from the short-circuit state.
- the welding current Aw in the arc period Ta of the second heat input period Tc in (g) to (h) is lower than the current Aso immediately before the short circuit opening.
- the welding current Aw in the arc period Ta in the second heat input period Tc is controlled to be lower than the welding current Aw in the arc period Ta in the first heat input period Th, or the second heat input period Tc.
- the sum of the energy of the product of the welding current Aw and time in the arc period Ta is controlled to be lower than the sum of the energy that is the product of the welding current Aw and time in the arc period Ta of the first heat input period Th. Thereby, the heat input amount in the second heat input period Tc can be reduced.
- the control of the welding current Aw in the arc period Ta in the second heat input period Tc to a current lower than the welding current Aw in the arc period Ta in the first heat input period Th is the first heat input period Th.
- the peak current Awa1 is preferably lower than the arc period Ta. Thereby, the heat input amount in the second heat input period Tc can be further reduced.
- the welding current Aw in the arc period Ta in the second heat input period Tc which is reduced with respect to the welding current Aw in the arc period Ta in the first heat input period Th, is preferably a value of 30 A or more. If the welding current Aw in the arc period Ta of the second heat input period Tc is less than 30 A and continues for a long period of, for example, 20 msec or longer, the arc may not be maintained and the arc may break. Alternatively, since the size of the droplet 26 at the tip of the welding wire 22 does not grow, it becomes difficult to open the short circuit, and the next short circuit period Ts may become long, resulting in disturbance of the short circuit period.
- the reduced welding current Aw in the arc period Ta of the heat period Tc is desirably set to a value of 30 A or more.
- the welding wire 22 is fed periodically in a predetermined cycle and amplitude between normal feeding in the direction of the workpiece 21 and reverse feeding in the direction opposite to the normal feeding.
- a wire feed speed Wf that feeds the welding wire 22 to a short circuit
- the heat input can be reduced while maintaining a stable arc.
- the second embodiment relates to the reduction of the welding current Aw after the opening of the short circuit in the second heat input period Tc.
- the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
- the main difference from the first embodiment is that the welding current Aw of the arc period Ta in the second heat input period Tc, which is lower than the welding current Aw of the arc period of the first heat input period, shown in FIG. It is a point to control to a predetermined constant current Awa1a.
- the constant current Awa1a is lower than the peak current Awa1 of the welding current Aw in the arc period Ta of the first heat input period Th.
- the third embodiment relates to a welding current reduction in the arc period Ta in the second heat input period Tc.
- the same parts as those in the first and second embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.
- the main difference from the first and second embodiments is that the welding current Aw of the arc period Ta in the second heat input period Tc is changed to the arc period of the first heat input period Th as in the welding current Aw of FIG. Compared with the current waveform of the welding current Aw of Ta, it is relatively reduced. Compared with the current waveform of the welding current Aw in the arc period Ta in the first heat input period Th, the welding current Aw in the arc period Ta in the second heat input period Tc is relatively reduced, substantially. The current waveform is lowered so as to obtain a similar current waveform. Specifically, the welding current Aw in the arc period Ta in the second heat input period Tc is relatively reduced with respect to the welding current Aw in the arc period Ta in the first heat input period Th to obtain a predetermined ratio. .
- the welding current Aw in the arc period Ta of the second heat input period Tc has a peak current Awa1b, and the peak current of the welding current Aw in the arc period Ta is peaked while the welding current is reduced. It is similar to the droplet transfer state in the first heat input period Th controlled to the current Awa1, and the arc stability at the time of switching between the first heat input period Th and the second heat input period Tc is increased to be low. Heat input can be achieved.
- the welding current Aw of the second heat input period Tc is relatively reduced with respect to the welding current Aw of the first heat input period Th, and the predetermined ratio is the arc period Ta of the first heat input period Th.
- the welding current Aw is 10% or more and 50% or less.
- the degree of reduction with respect to the welding current Aw of the arc period Ta in the first heat input period Th is made larger and the relative ratio is made lower than 10%, the second heat input in FIG. In (h) after the peak current Awa1b during the arc period Ta of the period is output, the risk of causing arc breakage increases.
- the degree of reduction with respect to the welding current Aw of the arc period Ta in the first heat input period Th is made smaller and the relative ratio is larger than 50%, the effect of low heat input is small.
- the present invention relates to a method of periodically repeating a first heat input period Th and a second heat input period Tc.
- the same parts as those in the first to third embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.
- the main difference from the first to third embodiments is that this embodiment is different from the first, second, and third embodiments in which one first heat input period Th and one second heat input period Tc are repeated.
- a plurality of first heat input periods Th (Th1 to Th5) and one second heat input period Tc are repeated according to the thickness of the workpiece 21 such as a thin plate. It is.
- the welding current Aw in FIG. 4 periodically repeats a plurality of first heat input periods Th (Th1 to Th5) and one second heat input period Tc.
- Thn the number of continuous repetitions of the first heat input period
- Tcn the number of continuous repetitions of the second heat input period
- Thn the number of continuous repetitions of the second heat input period
- Tcn 1.
- the first heat input period Th and the second heat input period Tc are repeated once each.
- the workpiece 21 having a thinner plate thickness (for example, 3.2 mm or less) has a smaller number of continuous repetitions Thn of the first heat input period Th, and further reduces the amount of heat input to the workpiece 21. I can plan.
- the heat input amount is reduced while maintaining a stable arc by alternately repeating the first heat input period Th of one or more times and five times or less and the second heat input period Tc of one time. This leads to suppression of burn-through and improvement of the gap tolerance.
- the number of continuous repetitions Thn of the first heat input period Th is shown in FIG.
- the number of continuous repetitions Tcn of the second heat input period Tc is 1, and the material of the welding wire 22 and the material of the workpiece 21 are mild steel.
- the gap tolerance can be improved by reducing the number of continuous repetitions Thn of the first heat input period Th.
- the gap amount G is 100%, the number of continuous repetitions Thn of the first heat input period Th is two, and when the gap amount G is 20%, the number of continuous repetitions Thn of the first heat input period Th. Is 5 times.
- the first heat input period Th and the second heat input period Tc having a lower heat input than the first heat input period Th.
- the amount of heat input for low heat input is set by setting the ratio between the second heat input period Tc and the first heat input period Th that are lower than the first heat input period Th. Can be set in detail. Moreover, while reducing heat input, the change of bead width can be suppressed and a favorable bead appearance can be obtained. Further, the short-circuit arc welding of the present disclosure has a smaller heat input than pulse arc welding, and can shorten the arc length and the heat input.
- the first heat input period Th and the second heat input period Tc having a lower heat input than the first heat input period Th are periodically formed.
- This is industrially useful as an arc welding control method for performing short-circuit arc welding while feeding a welding wire as a consumable electrode.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Theoretical Computer Science (AREA)
- Arc Welding Control (AREA)
Abstract
Description
まず、本実施の形態1のアーク溶接制御方法を行うアーク溶接装置について、図2を用いて説明する。図2は、アーク溶接装置の概略構成を示す図である。アーク溶接装置20は、消耗電極である溶接ワイヤ22と溶接対象物である被溶接物21との間で、アーク状態のアーク期間Taと短絡状態の短絡期間Tsとを繰り返して溶接を行う。
本実施の形態2は第2の入熱期間Tcにおける短絡開放後の溶接電流Awの低減に関する。
本実施の形態3は第2の入熱期間Tcにおけるアーク期間Taの溶接電流低減に関する。
第1の入熱期間Thと第2の入熱期間Tcを周期的に繰り返す方法に関する。
2 主変圧器(トランス)
3 一次側整流部
4 スイッチング部
5 DCL(リアクトル)
6 二次側整流部
7 溶接電流検出部
8 溶接電圧検出部
9 短絡検出部
10 短絡開放検出部
11 短絡/アーク検出部
12 出力制御部
13 短絡制御部
14 アーク制御部
15 溶接条件設定部
16 ワイヤ送給速度制御部
17 ワイヤ送給速度検出部
18 演算部
19 正送/逆送切替タイミング制御部
20 アーク溶接装置
21 被溶接物
22 溶接ワイヤ
23 アーク
24 溶接チップ
25 ワイヤ送給部
26 溶滴
Claims (5)
- 消耗電極である溶接ワイヤを用いて溶接対象物に対して、第1の入熱量からなる第1の入熱期間と第2の入熱量からなる第2の入熱期間とを周期的に繰り返すアーク溶接を行うアーク溶接制御方法であって、
前記第1の入熱期間および前記第2の入熱期間は、それぞれ短絡期間とアーク期間とを有し、前記第2の入熱期間の前記短絡期間において短絡開放を検出した場合に、前記第2の入熱期間のアーク期間の溶接電流を前記短絡開放の直前における電流よりも低くし、
前記第2の入熱期間におけるアーク期間の溶接電流を前記第1の入熱期間におけるアーク期間の溶接電流よりも低くする、または、前記第2の入熱期間のアーク期間における溶接電流と時間の積のエネルギーの総和を前記第1の入熱期間のアーク期間における溶接電流と時間の積であるエネルギー総和よりも低くすることを特徴とする、
アーク溶接制御方法。 - 消耗電極である溶接ワイヤを用いて溶接対象物に対して、第1の入熱量からなる第1の入熱期間と第2の入熱量からなる第2の入熱期間とを周期的に繰り返すアーク溶接を行うアーク溶接制御方法であって、
前記第1の入熱期間および前記第2の入熱期間は、それぞれ短絡期間とアーク期間とからなり、前記第2の入熱期間の前記短絡期間において短絡開放を検出した場合に、前記第2の入熱期間におけるアーク期間の溶接電流を前記短絡開放の直前における電流よりも低く、前記第1の入熱期間におけるアーク期間の溶接電流よりも低くし、前記第1の入熱期間におけるアーク期間の溶接電流に対して相対的に所定の割合で低くなるようにすることを特徴とする、
アーク溶接制御方法。 - 前記第2の入熱期間におけるアーク期間の溶接電流を前記第1の入熱期間におけるアーク期間の溶接電流に対して低い一定電流とし、30A以上とすることを特徴とする、請求項1または2記載のアーク溶接制御方法。
- 前記第1の入熱期間と前記第2の入熱期間との周期的な繰り返しは、前記溶接対象物の板厚およびギャップ量の少なくとも1つに応じて、1回以上5回以下で連続して行われる前記第1の入熱期間と、1回の前記第2の入熱期間とを周期的に交互に繰り返すことにより行うことを特徴とする、請求項1または2に記載のアーク溶接制御方法。
- 溶接対象物の方向に行う正送と前記正送とは逆方向に行う逆送とに交互に、所定の周期と振幅で周期的に前記溶接ワイヤの送給を行う請求項1または2に記載のアーク溶接制御方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018509047A JP6778858B2 (ja) | 2016-03-29 | 2017-03-17 | アーク溶接制御方法 |
US16/086,658 US10919100B2 (en) | 2016-03-29 | 2017-03-17 | Arc welding control method |
CN201780020085.1A CN108883485B (zh) | 2016-03-29 | 2017-03-17 | 电弧焊接控制方法 |
EP17774441.4A EP3437778B1 (en) | 2016-03-29 | 2017-03-17 | Arc welding control method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016-065322 | 2016-03-29 | ||
JP2016065322 | 2016-03-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017169900A1 true WO2017169900A1 (ja) | 2017-10-05 |
Family
ID=59964469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2017/010902 WO2017169900A1 (ja) | 2016-03-29 | 2017-03-17 | アーク溶接制御方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US10919100B2 (ja) |
EP (1) | EP3437778B1 (ja) |
JP (1) | JP6778858B2 (ja) |
CN (1) | CN108883485B (ja) |
WO (1) | WO2017169900A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020062666A (ja) * | 2018-10-18 | 2020-04-23 | 株式会社ダイヘン | アーク溶接制御方法 |
JP2020131199A (ja) * | 2019-02-13 | 2020-08-31 | 株式会社ダイヘン | アーク溶接方法 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10974338B2 (en) * | 2016-03-29 | 2021-04-13 | Panasonic Intellectual Property Management Co., Ltd. | Arc welding control method |
US20200206836A1 (en) * | 2018-12-28 | 2020-07-02 | Illinois Tool Works Inc. | Systems and methods for controlling heat input during short-circuiting type welding processes |
JP7335677B2 (ja) * | 2019-11-27 | 2023-08-30 | 株式会社ダイヘン | アーク溶接制御方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60255276A (ja) * | 1984-05-31 | 1985-12-16 | Mitsubishi Heavy Ind Ltd | 消耗電極式ア−ク溶接法 |
JPS63157765A (ja) * | 1986-12-19 | 1988-06-30 | Kobe Steel Ltd | 短絡移行型ア−ク溶接機の出力制御方法および出力制御装置 |
JP2015020185A (ja) * | 2013-07-17 | 2015-02-02 | 株式会社ダイヘン | アーク溶接用電源装置及びアーク溶接用電源装置の制御方法 |
Family Cites Families (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3809853A (en) * | 1972-08-24 | 1974-05-07 | Union Carbide Corp | Method for short circuit metal transfer arc welding |
NL176060B (nl) * | 1974-02-08 | 1984-09-17 | Philips Nv | Lasinrichting voor kortsluitbooglassen. |
JPS59206159A (ja) * | 1983-05-04 | 1984-11-21 | Shinko Electric Co Ltd | 溶接電源の制御方法および装置 |
JPS6316868A (ja) | 1986-07-09 | 1988-01-23 | Hitachi Seiko Ltd | 小電流溶接方法 |
EP0478796B1 (en) | 1990-04-17 | 1999-03-17 | Daihen Corporation | Mag arc-welding method and welding apparatus |
JP2993174B2 (ja) | 1990-04-17 | 1999-12-20 | 株式会社ダイヘン | Magアーク溶接方法及び溶接装置 |
US6031203A (en) * | 1997-10-22 | 2000-02-29 | Central Motor Wheel Co., Ltd. | Method and apparatus for determining stability of arc welding |
AUPQ528400A0 (en) * | 2000-01-27 | 2000-02-17 | Crc For Welded Structures Limited | A welding control system |
US6794608B2 (en) * | 2001-10-30 | 2004-09-21 | Tri Tool Inc. | Welding current control system and method |
JP2007508939A (ja) * | 2003-10-23 | 2007-04-12 | フロニウス・インテルナツィオナール・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | 熔接プロセスを制御する方法及び熔接プロセスを行なうための熔接装置 |
AT413667B (de) * | 2004-05-10 | 2006-04-15 | Fronius Int Gmbh | Schweissverfahren und laser-hybrid-schweissbrenner |
JP3941802B2 (ja) | 2004-07-08 | 2007-07-04 | 松下電器産業株式会社 | アーク溶接制御方法及びアーク溶接装置 |
AT501489B1 (de) * | 2005-02-25 | 2009-07-15 | Fronius Int Gmbh | Verfahren zum steuern und/oder regeln eines schweissgerätes und schweissgerät |
JP4847082B2 (ja) | 2005-09-21 | 2011-12-28 | 株式会社ダイヘン | くびれ検出時電流急減機能付溶接電源 |
JP5214859B2 (ja) * | 2005-11-07 | 2013-06-19 | 株式会社ダイヘン | 消耗電極アーク溶接電源の出力制御方法 |
JP4211793B2 (ja) * | 2006-02-17 | 2009-01-21 | パナソニック株式会社 | アーク溶接制御方法およびアーク溶接装置 |
US8067714B2 (en) * | 2007-03-12 | 2011-11-29 | Daihen Corporation | Squeezing detection control method for consumable electrode arc welding |
JP5090765B2 (ja) * | 2007-03-29 | 2012-12-05 | 株式会社ダイヘン | 消耗電極交流アーク溶接の送給制御方法 |
JP4950819B2 (ja) * | 2007-09-21 | 2012-06-13 | 株式会社ダイヘン | 交流消耗電極短絡アーク溶接方法 |
FR2923167B1 (fr) * | 2007-11-06 | 2010-03-26 | Air Liquide | Procede de soudage a l'arc par court-circuit avec electrode fusible |
JP4702375B2 (ja) | 2008-02-07 | 2011-06-15 | パナソニック株式会社 | アーク溶接制御方法およびアーク溶接装置 |
EP2335857B1 (en) * | 2009-07-29 | 2016-08-31 | Panasonic Intellectual Property Management Co., Ltd. | Arc welding method and arc welding device |
JP2012006020A (ja) * | 2010-06-22 | 2012-01-12 | Daihen Corp | アーク溶接制御方法 |
WO2012046411A1 (ja) * | 2010-10-07 | 2012-04-12 | パナソニック株式会社 | アーク溶接方法およびアーク溶接装置 |
CN102933343B (zh) * | 2011-06-03 | 2014-12-31 | 松下电器产业株式会社 | 电弧焊接控制方法及电弧焊接装置 |
JP6043969B2 (ja) * | 2012-03-07 | 2016-12-14 | パナソニックIpマネジメント株式会社 | 溶接方法 |
EP2826584B1 (en) * | 2012-03-16 | 2018-04-04 | Panasonic Intellectual Property Management Co., Ltd. | Arc welding control method and arc welding device |
WO2014073184A1 (ja) * | 2012-11-07 | 2014-05-15 | パナソニック株式会社 | アーク溶接装置およびアーク溶接制御方法 |
JP5994735B2 (ja) * | 2013-06-07 | 2016-09-21 | 株式会社安川電機 | アーク溶接装置、アーク溶接システム及びアーク溶接方法 |
JP6152588B2 (ja) * | 2013-07-10 | 2017-06-28 | パナソニックIpマネジメント株式会社 | アーク溶接制御方法およびアーク溶接装置 |
JP6421321B2 (ja) * | 2014-05-16 | 2018-11-14 | パナソニックIpマネジメント株式会社 | アーク溶接制御方法およびアーク溶接装置 |
JP6695030B2 (ja) * | 2014-10-17 | 2020-05-20 | パナソニックIpマネジメント株式会社 | アーク溶接の制御方法 |
-
2017
- 2017-03-17 EP EP17774441.4A patent/EP3437778B1/en active Active
- 2017-03-17 US US16/086,658 patent/US10919100B2/en active Active
- 2017-03-17 JP JP2018509047A patent/JP6778858B2/ja active Active
- 2017-03-17 CN CN201780020085.1A patent/CN108883485B/zh active Active
- 2017-03-17 WO PCT/JP2017/010902 patent/WO2017169900A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60255276A (ja) * | 1984-05-31 | 1985-12-16 | Mitsubishi Heavy Ind Ltd | 消耗電極式ア−ク溶接法 |
JPS63157765A (ja) * | 1986-12-19 | 1988-06-30 | Kobe Steel Ltd | 短絡移行型ア−ク溶接機の出力制御方法および出力制御装置 |
JP2015020185A (ja) * | 2013-07-17 | 2015-02-02 | 株式会社ダイヘン | アーク溶接用電源装置及びアーク溶接用電源装置の制御方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3437778A4 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020062666A (ja) * | 2018-10-18 | 2020-04-23 | 株式会社ダイヘン | アーク溶接制御方法 |
JP7053120B2 (ja) | 2018-10-18 | 2022-04-12 | 株式会社ダイヘン | アーク溶接制御方法 |
JP2020131199A (ja) * | 2019-02-13 | 2020-08-31 | 株式会社ダイヘン | アーク溶接方法 |
JP7188858B2 (ja) | 2019-02-13 | 2022-12-13 | 株式会社ダイヘン | アーク溶接方法 |
Also Published As
Publication number | Publication date |
---|---|
JP6778858B2 (ja) | 2020-11-04 |
CN108883485A (zh) | 2018-11-23 |
EP3437778B1 (en) | 2020-06-03 |
CN108883485B (zh) | 2020-07-14 |
JPWO2017169900A1 (ja) | 2019-02-07 |
EP3437778A4 (en) | 2019-05-08 |
EP3437778A1 (en) | 2019-02-06 |
US10919100B2 (en) | 2021-02-16 |
US20190070687A1 (en) | 2019-03-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2017169900A1 (ja) | アーク溶接制御方法 | |
WO2017169899A1 (ja) | アーク溶接制御方法 | |
JP5927433B2 (ja) | アーク溶接方法およびアーク溶接装置 | |
EP2455177B1 (en) | Arc welding control method | |
WO2010116695A1 (ja) | アーク溶接方法およびアーク溶接装置 | |
JP5278542B2 (ja) | アーク溶接制御方法およびアーク溶接制御装置 | |
WO2011013321A1 (ja) | アーク溶接方法およびアーク溶接装置 | |
US20130299476A1 (en) | Arc welding control method and arc welding device | |
WO2018043626A1 (ja) | アーク溶接制御方法 | |
CN111989182B (zh) | 电弧焊接控制方法 | |
JP6167293B2 (ja) | アーク溶接制御方法およびアーク溶接装置 | |
JP6268360B2 (ja) | アーク溶接制御方法およびアーク溶接装置 | |
US11298770B2 (en) | Arc welding method and arc welding device | |
JP2018051624A (ja) | アーク溶接制御方法 | |
WO2023223739A1 (ja) | 溶接ビード形状の制御方法、電源制御方法、積層造形方法、制御装置、電源装置、溶接システム、積層造形システム及びプログラム | |
JP2019188434A (ja) | 交流アーク溶接の制御方法 | |
WO2024034363A1 (ja) | アーク溶接方法 | |
WO2021140970A1 (ja) | アーク溶接制御方法及びアーク溶接装置 | |
WO2023042565A1 (ja) | 溶接制御方法、溶接制御装置、溶接電源、溶接システム、プログラム、溶接方法及び付加製造方法 | |
JP2023116899A (ja) | アーク溶接制御方法 | |
JP2023122461A (ja) | アーク溶接制御方法 | |
JP2024006194A (ja) | レーザアークハイブリッド溶接方法 | |
JP2023122465A (ja) | アーク溶接制御方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 2018509047 Country of ref document: JP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2017774441 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2017774441 Country of ref document: EP Effective date: 20181029 |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 17774441 Country of ref document: EP Kind code of ref document: A1 |