WO2010086933A1 - 交流パルスアーク溶接方法 - Google Patents
交流パルスアーク溶接方法 Download PDFInfo
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- WO2010086933A1 WO2010086933A1 PCT/JP2009/006300 JP2009006300W WO2010086933A1 WO 2010086933 A1 WO2010086933 A1 WO 2010086933A1 JP 2009006300 W JP2009006300 W JP 2009006300W WO 2010086933 A1 WO2010086933 A1 WO 2010086933A1
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- 238000003466 welding Methods 0.000 title claims abstract description 153
- 238000000034 method Methods 0.000 title claims abstract description 44
- 230000007423 decrease Effects 0.000 claims description 20
- 238000002844 melting Methods 0.000 claims description 19
- 230000008018 melting Effects 0.000 claims description 19
- 230000003247 decreasing effect Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 abstract description 26
- 230000035515 penetration Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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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
- B23K9/09—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
- B23K9/093—Arrangements or circuits for arc welding with pulsed current or voltage characterised by the circuits the frequency of the pulses produced being modulatable
-
- 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
- B23K9/0735—Stabilising of the arc length
Definitions
- a wire which is a consumable electrode is fed toward a base material which is an object to be welded, an electric current is supplied between the wire and the base material, and the wire has a positive polarity reverse polarity period and a wire negative polarity.
- the alternating current pulse arc welding method supplies a constant speed of wire toward the base material at a set wire feeding speed, and alternately supplies positive polarity current and reverse polarity pulse current between the wire and the base material.
- Welding is a method of welding.
- the positive polarity current is a current that flows in order to melt the wire during the positive polarity period in which the wire has a negative polarity and form a droplet at the tip of the wire.
- the reverse polarity pulse current is a current that is supplied to supply a pulse current during a reverse polarity period in which the wire has a positive polarity to transfer the droplet at the wire tip to the base material.
- an alternating current pulse arc welding method for example, a method is known in which a peak current conduction period and a peak current value in a reverse polarity period are set in accordance with conditions such as a wire and a shield gas in order to stabilize an arc. There is. Moreover, according to a wire feeding speed, what sets an alternating current frequency and positive polarity current value centrally is known (for example, refer patent document 1).
- the positive polarity current value and the positive polarity period are centrally determined in accordance with the wire feeding speed. Therefore, it was not possible to arbitrarily change the energization ratio between the reverse polarity period and the positive polarity period, and it was not possible to take advantage of the feature of consumable electrode type AC pulse welding capable of controlling the penetration depth.
- each parameter such as each parameter, such as polarity ratio and electric current of a reverse polarity period, each electric current of a positive polarity period separately.
- each parameter such as polarity ratio and electric current of a reverse polarity period
- each electric current of a positive polarity period separately.
- the present invention solves the above-mentioned conventional problems, performs welding which achieves regular droplet transfer of one pulse and one drop to suppress the occurrence of spatter, and a total period of a reverse polarity period and a positive polarity period. It is possible to arbitrarily change the polarity ratio which is the ratio of the positive polarity period to. Thereby, the present invention can control the heat input to the base material to adjust the penetration depth, and provide an AC pulse arc welding method capable of easily setting welding conditions.
- the alternating current pulse arc welding method is an alternating current pulse arc in which welding is alternately performed by alternately repeating a reverse polarity period in which a reverse polarity current consisting of a peak current and a base current flows and a positive polarity period in which a positive polarity current flows.
- a welding method comprising: setting a wire feeding speed; setting a polarity ratio which is a ratio of the positive polarity period to a total period of the reverse polarity period and the positive polarity period; Setting the AC frequency of AC pulse welding from the wire feeding speed and the set polarity ratio, and changing the polarity ratio without changing the wire feeding speed changes the AC frequency And changing the base current period in the reverse polarity period to change the alternating current frequency for welding.
- FIG. 1 is a view showing a schematic configuration of a welding apparatus according to a first embodiment of the present invention.
- FIG. 2 is a diagram showing an example of an AC pulse waveform in the first embodiment of the present invention.
- FIG. 3 is a diagram showing the relationship between the wire feeding speed and the AC frequency in the first embodiment of the present invention, with the polarity ratio as a parameter.
- FIG. 4 is a view showing a schematic configuration of a welding apparatus in a second embodiment of the present invention.
- FIG. 5 is a diagram showing the relationship between the wire feeding speed and the current integral value of the welding current in the second embodiment of the present invention.
- FIG. 1 is a view showing a schematic configuration of a welding apparatus according to Embodiment 1 of the present invention.
- FIG. 2 is a diagram showing an example of an AC pulse waveform in the first embodiment of the present invention.
- FIG. 3 is a diagram showing the relationship between the wire feeding speed and the AC frequency in the first embodiment of the present invention, with the polarity ratio as a parameter.
- the electric power from the input three-phase AC power supply 1 is full-wave rectified by the primary rectifier 2, and is smoothed by the smoothing capacitor 3 to be a DC voltage.
- the primary inverter circuit 4 receives the smoothed DC voltage, generates an alternating current by switching operation, and outputs it to the primary side of the welding transformer 5.
- the welding transformer 5 outputs an AC output to the secondary rectifier 6 connected to the secondary side.
- the secondary rectifier 6 receives the output of the welding transformer 5 and full-wave rectifies, and the output of the secondary rectifier 6 is suppressed by the direct current reactor 7 so that the current ripple is reduced to a direct current output.
- the DC output of the DC reactor 7 is converted to an AC output necessary for AC pulse welding by the secondary inverter circuit 8, the positive output is output to the wire 10, the negative output is output to the base material 12, and AC pulse arc welding is performed. .
- the setting unit 14 collectively sets.
- the wire feeding speed setting unit 14 stores a plurality of combinations of the welding current magnitude and the wire feeding speed, and determines the wire feeding speed based on the welding current magnitude.
- the wire feeding motor 11 is driven based on the signal from the wire feeding speed setting device 14 so that the wire 10 held by the welding torch 9 is the base material 12 at the set wire feeding speed.
- the wire feeding speed is set based on the magnitude of the set welding current.
- various pulse parameters constituting the AC pulse waveform are centrally set.
- the pulse parameters include peak current value Ip in the reverse polarity period Tep, base current value Ib, peak current period Tp, positive polarity period Ten and positive polarity current value Ien in positive polarity period Ten. is there.
- a plurality of these various pulse parameters are stored in the pulse parameter setting unit 15 as a table in association with the wire feeding speed.
- the various pulse parameters are selected by the pulse parameter setting unit 15 based on the set wire feeding speed, and are output to the primary inverter circuit 4. Then, the primary inverter circuit 4 is controlled so that the welding output matches the various pulse parameters, and the welding output necessary for AC pulse arc welding can be obtained.
- FIG. 2 shows an example of an alternating pulse waveform including various pulse parameters.
- the user of the welding apparatus operates the polarity ratio setter 16 to set the polarity ratio.
- the AC frequency setting unit 17 centrally determines and sets the AC frequency of AC welding.
- the setting of the AC frequency is made by storing in advance in the AC frequency setting unit 17 a formula relating to the AC frequency determined by the wire feed speed and the polarity ratio, and the set wire feed speed and the set polarity ratio From this, the AC frequency is calculated and set in the AC frequency setting unit 17.
- FIG. 3 shows the relationship between AC frequency, wire feed rate and polarity ratio.
- the AC frequency tends to increase linearly with the wire feeding speed, with the polarity ratio as a parameter.
- the AC frequency tends to decrease as the polarity ratio, that is, the positive polarity ratio (hereinafter referred to as "EN ratio”) increases, and based on these relationships, the AC frequency is calculated from the wire feeding speed and the EN ratio.
- the formula to be determined is determined. It is to be noted that not a formula but a table having a plurality of combinations of wire feeding speed, EN ratio and AC frequency is stored in AC frequency setting unit 17 and AC frequency is determined based on wire feeding speed and EN ratio. You may do so.
- the EN ratio and the AC frequency are output to the secondary inverter circuit 8 and the secondary inverter circuit 8 operates to set an AC pulse in which the welding output applied between the wire 10 and the base material 12 is set. It is controlled to be a waveform.
- the AC frequency is changed when the EN ratio is changed without changing the wire feeding speed.
- the positive polarity current value Ien does not change.
- the AC frequency is changed by increasing or decreasing the base current period Tb in which the base current flows in the reverse polarity period Tep according to the change of the EN ratio.
- the heat input to the base material 12 is reduced when the EN ratio is increased because the wire feeding speed is constant regardless of the EN ratio. Instead, the heat input to the wire 10 is increased. For this reason, the melting rate of the wire 10 is increased, and the wire 10 burns up as a welding phenomenon, and the arc length becomes long. In this case, the wire melting rate is reduced by reducing the AC frequency to reduce the average heat quantity per unit time. This makes it possible to balance the wire feeding speed and the wire melting speed, and an appropriate arc length can be realized.
- the alternating current frequency is determined by the alternating current frequency setting unit 17 based on the set wire feeding speed and the set EN ratio, as described above.
- the fluctuation of the arc length caused by the increase or decrease of the melting speed of the wire in the positive polarity period is avoided by the increase or decrease of the EN ratio performed to adjust the penetration of the base material 12. Therefore, the average heat amount given to the wire 10 is changed by changing the alternating current frequency of the alternating current welding according to the EN ratio.
- the wire melting rate and the wire feeding rate can be balanced to maintain the arc length at an appropriate length.
- the AC frequency is automatically set when the EN ratio is changed.
- the peak current value, the base current value, the peak current period, the positive polarity period, and the positive polarity current in the positive polarity period do not change even if the EN ratio is changed without changing the wire feeding speed.
- the alternating current pulse arc welding method is performed by alternately repeating a reverse polarity period in which a reverse polarity current consisting of a peak current and a base current is supplied and a positive polarity period in which a positive polarity current is supplied.
- AC pulse arc welding method to do The present AC pulse arc welding method includes the steps of setting a wire feeding speed, setting a polarity ratio, and setting an AC frequency of AC pulse welding. When the polarity ratio is changed without changing the wire feeding speed, the AC frequency is changed, and the base current period in the reverse polarity period is changed to change the AC frequency for welding.
- the ratio of the positive polarity period to the total period of the reverse polarity period and the positive polarity period is set.
- the AC frequency of AC pulse welding is set from the set wire feeding speed and the set polarity ratio.
- the fluctuation of the arc length due to the increase or decrease of the melting speed of the wire in the positive polarity period by the increase or decrease of the polarity ratio is avoided.
- the average heat quantity can be changed by changing the AC frequency, and the wire melting rate and the wire feeding rate can be balanced to maintain the arc length at an appropriate length.
- the AC pulse arc welding method of the present invention further includes the step of setting the positive polarity current value in the positive polarity period from the set polarity ratio and the set AC frequency, and the wire feeding speed is not changed.
- welding may be performed by changing the AC frequency and the positive polarity current value.
- the peak current period, the peak current value, the base current value and the positive polarity period in the reverse polarity period are not changed.
- welding may be performed by changing the alternating current frequency and the positive polarity current value.
- good welding can be realized while increasing or decreasing the polarity ratio to arbitrarily adjust the heat input to the base material, that is, the penetration depth. Furthermore, in addition to the adjustment of the alternating current frequency, it is possible to set the positive current necessary for regularly performing one drop welding which separates one droplet with one pulse. Thereby, the arc length can be stabilized, and good welding can be obtained to obtain a beautiful bead in which spatter generation is suppressed.
- welding may be performed by changing the AC frequency by changing the base current period in the reverse polarity period.
- FIG. 4 is a view showing a schematic configuration of a welding apparatus in a second embodiment of the present invention.
- FIG. 5 is a diagram showing the relationship between the wire feeding speed and the current integral value of the welding current in the second embodiment of the present invention.
- the main difference of the welding apparatus shown in FIG. 4 from the welding apparatus described using FIG. 1 in the first embodiment is that a positive polarity current setter 18 is provided, and the positive electrode is changed according to the change of the EN ratio.
- the positive polarity current value in the sex period is changed.
- the arc length is kept substantially constant.
- the reverse polarity period Tep is increased or decreased by changing the EN ratio. Then, since the amount of heat that can be applied to the wire 10 increases or decreases with one pulse, there may be a case where it is not possible to ensure droplet detachment from the wire wire 10 properly and regularly with one pulse.
- the EN ratio set by the polarity ratio setter 16 and the AC frequency set by the AC frequency setter 17 are input to the positive polarity current setter 18, and the positive polarity current setter 18
- the proper positive polarity current value (Ien) is determined and set according to Then, the positive polarity current value (Ien) set by the positive polarity current setting unit 18 is input to the pulse parameter setting unit 15, and control necessary for alternating current output is performed by the primary inverter circuit 4.
- the determination of the positive polarity current value (Ien) is made to store in advance in the positive polarity current setter 18 a calculation formula described later that represents the relationship between the EN ratio, the AC frequency, and the positive polarity current value (Ien).
- the positive polarity current value (Ien) is calculated and set from the set EN ratio and the set AC frequency.
- the positive polarity current setting unit 18 stores a table having a plurality of combinations of the EN ratio, the AC frequency, and the positive polarity current value (Ien) instead of the calculation formula, and the positive polarity based on the EN ratio and the AC frequency.
- the current value (Ien) may be determined.
- the positive polarity current value (Ien) When the polarity ratio setter 16 increases the positive polarity ratio, that is, the EN ratio, the AC frequency decreases in the AC frequency setter 17. Then, the welding current integral value Q in the positive polarity period is increased. As a result, it is necessary to reduce the melting amount of the wire 10 in order to realize one pulse and one drop, and in the positive polarity current setting device 18, the positive polarity current value (Ien) is before the EN ratio is increased. A reduced value is selected and set in comparison.
- the AC frequency is increased in the AC frequency setter 17. Therefore, the welding current integral value Q in the positive polarity period is reduced. Then, in order to realize one pulse and one drop, it is necessary to increase the melting amount, and in the positive polarity current setting device 18, the positive polarity current value (Ien) has increased compared to before the reduction of the EN ratio. A value is selected and set.
- the welding current integral value Q can be expressed by the following equation.
- Q represents the welding current integral value for 1 second, which is obtained by adding the welding current integral value in the reverse polarity period (Tep) and the welding current integral value in the positive polarity period (Ten) It is what frequency-doubled things.
- f represents an alternating current frequency.
- ⁇ preferably has a coefficient of about 1 ⁇ ⁇ 10 in consideration of the material of the wire 10 and the wire diameter.
- the wire feeding speed corresponding to the set welding current is centrally set by the wire feeding speed setting device 14. Ru.
- various pulses constituting an alternating current waveform such as peak current value, base current value, peak current period and positive polarity period in a reverse polarity period collectively Parameters are set.
- a plurality of these various pulse parameters are stored as a table in the pulse parameter setting unit 15 in association with the wire feeding speed, and are selected by the pulse parameter setting unit 15 based on the set wire feeding speed.
- the user of the welding apparatus operates the polarity ratio setting unit 16 to set the EN ratio, and also in the second embodiment, the set wire transmission and the wire transmission set in the same manner as the first embodiment.
- the AC frequency setting device 17 centrally determines and sets the AC frequency of AC welding.
- the positive current value in the positive period can be obtained based on the equation (1).
- the heat quantity Q1 necessary for one cycle of the AC pulse waveform can be obtained by dividing the welding current integral value Q by the AC frequency. Then, the heat quantity Qep of the reverse polarity period which can be obtained from the peak current value, the base current value, the peak current period and the base current period in the reverse polarity period is subtracted from the heat amount Q1. This makes it possible to determine the heat quantity Qen during the positive polarity period. Then, the heat quantity Qen is divided by the coefficient ⁇ and further divided by the positive polarity period to obtain the positive polarity current value.
- the above calculation is performed in the positive polarity current setting device 18 in accordance with the above-described procedure.
- pulse parameters such as peak current value, base current value, peak current period and positive polarity period in reverse polarity period
- the AC frequency and the positive polarity current change according to the EN ratio
- the same effect as that of the first embodiment can be realized. Furthermore, since the positive polarity current is changed according to the change of the EN ratio, it is possible to maintain an appropriate arc length and achieve regular dropout of one pulse and one drop, and obtain good welding results. it can.
- the welding current integral value Q and the wire feeding speed have a linearly increasing relationship. Furthermore, although it is an example of AC pulse MIG welding with aluminum, it is also confirmed that the welding current integral value Q increases as the wire diameter increases, and the welding current integral value Q decreases as the wire diameter decreases. .
- the wire with a diameter of 1.6 mm has a larger welding current integral value Q than the wire with a diameter of 1.2 mm.
- the welding current integral value Q is smaller in the wire with a wire diameter of ⁇ 1.0 mm than in the wire with ⁇ 1.2 mm.
- the alternating current ratio when the EN ratio is changed without changing the wire feeding speed, the alternating current ratio is increased when the EN ratio becomes larger and the ratio of the positive polarity period becomes larger than before the change. If the frequency is lowered and the EN ratio is smaller than that before the change and the ratio of the positive polarity period is smaller, welding may be performed by increasing the AC frequency.
- the AC frequency and the positive polarity current of AC welding can be obtained centrally according to the change of the EN ratio, and the pulse parameters can be set automatically, so a welding method with easy setting of welding conditions It can be realized.
- the EN ratio when the EN ratio is changed without changing the wire feeding speed, the EN ratio becomes larger compared to that before the change and the ratio of the positive polarity period becomes larger. If the EN current decreases and the EN ratio decreases and the ratio of the positive polarity period decreases as compared to before the change, the welding may be performed by increasing the positive current value.
- the AC frequency and the positive polarity current of AC welding can be obtained centrally according to the change of the EN ratio, and the pulse parameters can be set automatically, so a welding method with easy setting of welding conditions It can be realized.
- a step of setting a heat amount a step of calculating an appropriate current integral value, a step of calculating a current integral value necessary for a positive polarity period, and a positive polarity current value are determined.
- the step of setting the amount of heat is a step of setting the amount of heat for melting the wire to make the arc length constant based on the set wire feeding speed.
- the step of calculating the proper current integral value is a step of dividing the heat amount by the set AC frequency to calculate the proper current integral value which is the heat amount necessary for the period of one cycle of the current waveform of the alternating current welding.
- the step of calculating the current integral value necessary for the positive polarity period is a step of calculating the current integral value necessary for the positive polarity period by subtracting the welding current integral value of the reverse polarity period from the appropriate current integral value.
- the step of determining the positive polarity current value is a step of determining the positive polarity current value from the current integral value required for the positive polarity period and the positive polarity period.
- the frequency and positive polarity current of AC welding can be obtained centrally according to the change of the EN ratio, and the pulse parameter can be set automatically, so a welding method with easy setting of welding conditions is realized. can do.
- the wire feeding speed determined corresponding to the welding current is set, and the EN ratio is changed without changing the wire feeding speed. Therefore, regardless of the EN ratio, the wire feeding speed is constant, and therefore the amount of deposited metal does not change, and the setting of the welding conditions is easy, so the time for deriving the appropriate welding conditions can be shortened.
- the alternating current pulse welding method of the present invention changes the average heat quantity by changing the alternating current frequency in order to avoid the fluctuation of the arc length due to the increase or decrease of the melting speed of the wire in the positive polarity period by the increase or decrease of the polarity ratio. .
- the wire melting rate and the wire feeding rate can be balanced to maintain the arc length at an appropriate length, which is industrially useful as a welding method when welding aluminum or the like.
- Reference Signs List 1 three-phase AC power supply 2 primary rectifier 3 smoothing capacitor 4 primary inverter circuit 5 welding transformer 6 secondary rectifier 7 DC reactor 8 secondary inverter circuit 9 welding torch 10 wire 11 wire feeding motor 12 base material 13 Welding current setter 14 Wire feed speed setter 15 Pulse parameter setter 16 Polarity ratio setter 17 AC frequency setter 18 Positive polarity current setter
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Abstract
Description
図1は、本発明の実施の形態1における溶接装置の概略構成を示す図である。図2は、本発明の実施の形態1における交流パルス波形の一例を示す図である。図3は、本発明の実施の形態1におけるワイヤ送給速度と交流周波数の関係を、極性比率をパラメータとして示す図である。
図4は、本発明の実施の形態2における溶接装置の概略構成を示す図である。図5は、本発明の実施の形態2におけるワイヤ送給速度と溶接電流の電流積分値の関係を示す図である。
2 1次整流器
3 平滑用コンデンサ
4 1次インバータ回路
5 溶接用トランス
6 2次整流器
7 直流リアクタ
8 2次インバータ回路
9 溶接用トーチ
10 ワイヤ
11 ワイヤ送給用モータ
12 母材
13 溶接電流設定器
14 ワイヤ送給速度設定器
15 パルスパラメータ設定器
16 極性比率設定器
17 交流周波数設定器
18 正極性電流設定器
Claims (7)
- ピーク電流とベース電流からなる逆極性電流を通電する逆極性期間と、正極性電流を通電する正極性期間と、を交互に繰り返して溶接を行う交流パルスアーク溶接方法であって、
ワイヤ送給速度を設定するステップと、
前記逆極性期間と前記正極性期間との合計期間に対する前記正極性期間の比率である極性比率を設定するステップと、
設定された前記ワイヤ送給速度と設定された前記極性比率とから交流パルス溶接の交流周波数を設定するステップと、を有し、
前記ワイヤ送給速度は変更せずに前記極性比率を変更すると前記交流周波数が変更し、前記逆極性期間におけるベース電流期間を変更することで前記交流周波数を変更して溶接する交流パルスアーク溶接方法。 - 設定された前記極性比率と設定された前記交流周波数とから前記正極性期間における正極性電流値を設定するステップをさらに有し、
前記ワイヤ送給速度は変更せずに前記極性比率を変更すると、前記交流周波数と前記正極性電流値とを変更して溶接する請求項1に記載の交流パルスアーク溶接方法。 - 前記ワイヤ送給速度は変更せずに前記極性比率を変更すると、前記逆極性期間におけるピーク電流期間、ピーク電流値、ベース電流値および前記正極性期間は変更せずに、前記交流周波数と前記正極性電流値を変更して溶接する請求項2に記載の交流パルスアーク溶接方法。
- 前記逆極性期間における前記ベース電流期間を変更することで前記交流周波数を変更して溶接する請求項2に記載の交流パルスアーク溶接方法。
- 前記ワイヤ送給速度は変更せずに前記極性比率を変更する場合、変更前に比べて前記極性比率が大きくなり前記正極性期間の比率が大きくなる場合には前記交流周波数を低くし、変更前に比べて前記極性比率が小さくなり前記正極性期間の比率が小さくなる場合には前記交流周波数を高くして溶接する請求項2から4のいずれか1項に記載の交流パルスアーク溶接方法。
- 前記ワイヤ送給速度は変更せずに前記極性比率を変更する場合、変更前に比べて前記極性比率が大きくなり前記正極性期間の比率が大きくなる場合には前記正極性電流値を減少させ、変更前に比べて前記極性比率が小さくなり前記正極性期間の比率が小さくなる場合には前記正極性電流値を増加させて溶接する請求項2から4のいずれか1項に記載の交流パルスアーク溶接方法。
- ワイヤを溶融してアーク長を一定にするための熱量を、設定された前記ワイヤ送給速度に基づいて設定するステップと、
前記熱量を設定された前記交流周波数で除して交流溶接の電流波形1サイクルの期間に必要な熱量である適正電流積分値を算出するステップと、
前記適正電流積分値から前記逆極性期間の溶接電流積分値を減じて前記正極性期間に必要な電流積分値を算出するステップと、
前記正極性期間に必要な前記電流積分値と前記正極性期間とから前記正極性電流値を決定するステップと、を有する請求項2から4のいずれか1項に記載の交流パルスアーク溶接方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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CN200980121970.4A CN102056699B (zh) | 2009-01-28 | 2009-11-24 | 交流脉冲电弧焊接方法 |
EP09839125.3A EP2251132B1 (en) | 2009-01-28 | 2009-11-24 | Ac pulse arc welding method |
JP2010511834A JP5263288B2 (ja) | 2009-01-28 | 2009-11-24 | 交流パルスアーク溶接方法 |
US12/936,973 US8502114B2 (en) | 2009-01-28 | 2009-11-24 | AC pulse arc welding method |
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JP2009016195 | 2009-01-28 | ||
JP2009-016195 | 2009-01-28 |
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EP (1) | EP2251132B1 (ja) |
JP (1) | JP5263288B2 (ja) |
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WO (1) | WO2010086933A1 (ja) |
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JP2015533347A (ja) * | 2012-11-07 | 2015-11-24 | リンカーン グローバル,インコーポレイテッド | アーク溶接電源及び溶接作業中の入熱の制御を用いるアーク溶接システムの制御方法 |
WO2020235294A1 (ja) | 2019-05-22 | 2020-11-26 | パナソニックIpマネジメント株式会社 | アーク溶接方法およびアーク溶接装置 |
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JP5871372B2 (ja) * | 2012-01-12 | 2016-03-01 | 株式会社ダイヘン | アーク溶接装置 |
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JP5263288B2 (ja) | 2013-08-14 |
EP2251132A1 (en) | 2010-11-17 |
EP2251132B1 (en) | 2017-03-15 |
US8502114B2 (en) | 2013-08-06 |
JPWO2010086933A1 (ja) | 2012-07-26 |
CN102056699A (zh) | 2011-05-11 |
CN102056699B (zh) | 2013-10-09 |
US20110278273A1 (en) | 2011-11-17 |
EP2251132A4 (en) | 2015-04-15 |
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