JPS5823571A - Pulse arc welding method - Google Patents
Pulse arc welding methodInfo
- Publication number
- JPS5823571A JPS5823571A JP12088981A JP12088981A JPS5823571A JP S5823571 A JPS5823571 A JP S5823571A JP 12088981 A JP12088981 A JP 12088981A JP 12088981 A JP12088981 A JP 12088981A JP S5823571 A JPS5823571 A JP S5823571A
- Authority
- JP
- Japan
- Prior art keywords
- current
- average value
- welding
- pulse
- bath
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
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
- B23K9/0732—Stabilising of the arc current
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
Abstract
Description
【発明の詳細な説明】
この発明ｒｉ、ベース’ｍ：ａにパルス電流を重畳した
浴接ＩＩＥ訛な消耗電極或いは非消耗電極に通電して浴
鋸するパルスアーク浴接方法に関するＯｍ耗電慣を使用
するパルスアークｍ接方法は。Detailed Description of the Invention This invention relates to a pulsed arc bath welding method for bath sawing by energizing a consumable electrode or a non-consumable electrode in a bath welding manner in which a pulse current is superimposed on the base 'm:a. The pulsed arc m-contact method uses .
浴融した消耗電極先端の俗調を細粒にして円滑に移行ｃ
以下スプレー移行という）させ、かつ、ア−り長を一定
Ｋｓ持することＫよって、安定したアークを発生させて
均一な浴接結果を得々と共にスパッタの発生の少ない浴
ｆＨｅを得ようとするものである。この消粍電４ＩＡに
は、アークが維持できる程度の低電流、即ち臨界電ｆｌ
ｔ埴（坊足１１ぼ）以下の定電流であるベース電流と、
周期的に繰返し発生されるパルス電流とを重畳したＦｆ
１接’ｓＩｃ流が供給され、パルス電流が通電されてい
るときの溶接電流のピーク電流値が臨界電流値以上の＋
１＃ｉ電随になるようにしてスプレー移行されている。Makes the tip of the bath-melted consumable electrode into fine particles for smooth transition c
(hereinafter referred to as spray transfer), and by maintaining a constant arc length Ks, a stable arc is generated and a uniform bath contact result is obtained, as well as a bath fHe with less spatter generation. It is. This current dissipation 4IA has a low current that can maintain the arc, that is, the critical current fl
A base current that is a constant current of less than t hani (boashi 11 bo),
Ff that is superimposed with a periodically generated pulse current
The peak current value of the welding current when the single contact 'sIc current is supplied and the pulse current is applied is greater than the critical current value +
It is sprayed and transferred so that it becomes 1#i electric chain.
ま次、非消耗［懐を使用するパルスアーク浴接方法は、
ｍ足厘以上の高１［流に１つて被浴僧吻を十分に溶解し
、坊犀櫃以下の低電流に１って溶解されたものの俗は落
ちを防止す４）ようにして簀建した浴接を行っている０
上記非ｍ耗電憧には、浴は落ちを防止するために店足辿
以下の建蒐訛であるベース電流と、周期的に繰返し発生
されてなるパルス電流とを重畳した浴接電流が供給され
、パルス電流が通電されているときの浴接電流のピーク
電流値が被俗接＠を十分に溶解できるＩｙｒ屋埴以上の
高電流とすることによって浴接を行なっている０
以上のような消耗電極及び非消耗電極を使用したパルス
アーク浴接様において、心材への入熱を一定にすると心
材は常に一様に俗解されるため、被浴接物の浴接′−坊
は一様に浴接接合されるので、一様な強度が得られ安定
した浴接となる。しかしながら臨界電流が俗桜欅の径、
シールドガス等によって異なるため浴接状態が変わると
、パルス電流とベース電流とを単独に設定し、浴接状態
を観察して適正な浴衾状態が得られるように調整するた
め１′ゝルス電流とベース電流との設定によって浴接電
流の平均１Ｍを適正に選択することは困難であり、また
、適正に選択してもＦ６接中に変動したりして安定した
浴接が得られないこともある〇この発明は１以上の事情
Ｋｍみなされたもので、心材の浴１ｓｔを−ａＫするこ
とにより安定した浴接が行なえるようにしたパルスアー
ク浴接方法を提供することを目的とする。Next, the pulse arc bath welding method using a non-consumable
A high electric current of more than 100 m is used to sufficiently dissolve the bathed monk's proboscis, and a low electric current of no more than 1000 yen is used to prevent the dissolution of the monk's body from falling. 0
In order to prevent the bath from dropping, the above-mentioned non-consumption current is supplied with a bath contact current, which is a superposition of a base current, which is less than the base current, and a periodically generated pulse current. The bath welding is performed by setting the peak current value of the bath welding current when the pulse current is applied to a high current higher than that which can sufficiently dissolve the welding. In pulse arc bath welding using consumable electrodes and non-consumable electrodes, if the heat input to the core material is constant, the core material is always uniform, so the bath welding of the welded material is uniform. Since it is bath welded, uniform strength is obtained and stable bath welding is achieved. However, the critical current is the diameter of the common cherry tree,
When the bath contact state changes because it varies depending on the shielding gas, etc., the pulse current and base current are set independently, and the 1' pulse current is set to observe the bath contact state and adjust it so that an appropriate bath state is obtained. It is difficult to appropriately select the average bath contact current of 1M depending on the settings of F6 and base current, and even if it is selected properly, stable bath contact cannot be obtained due to fluctuations during F6 contact. 〇This invention was made in consideration of one or more circumstances, and an object of the present invention is to provide a pulse arc bath welding method that enables stable bath welding by applying -aK to the bath 1st of the core material. .
即ち、この発明は、Ｄｒ冗埴以下の足電流であるベース
電流にパワレス電流を合成した溶接電流を醍接悸に通電
、して浴接するパルスアーク浴接において、上記パルス
電流と溶接電流の平均値とを設定し、検出した実際のパ
ルス電流の平均値及び実際の浴接電流の平均値に基づき
実際の浴接亜流の平均値が設定した浴接電流の平均値に
一致するよう上記ベース電流を制御するようにしたこと
を特敵とするパルスアーク浴接方法である。That is, the present invention provides pulsed arc bath welding in which a welding current obtained by combining a powerless current with a base current that is lower than Dr. Based on the average value of the detected actual pulse current and the average value of the actual bath contact current, the base current is adjusted so that the average value of the actual bath contact subcurrent matches the set average value of the bath contact current. This is a pulsed arc bath welding method whose special enemy is that it controls the
以下、この発明を添付図面に示す実施例に基づいてＢ５
？、＃Ｊする。Hereinafter, this invention will be explained based on the embodiments shown in the accompanying drawings.
? , #J.
第１図に示すように、パルス電流設定器１はパルス電流
の振幅、パルス幅及び周波数を設定することにより任意
にパルス電流工ｐが設定でき、また、平均電流設定器２
には、浴接平均電流値を設に埴工Ａとして任意に設定で
きる。As shown in FIG. 1, the pulse current setting device 1 can arbitrarily set the pulse current p by setting the amplitude, pulse width and frequency of the pulse current, and the average current setting device 2
In this case, the bath contact average current value can be arbitrarily set as the current value A.
上記パルス電流設定器１の設定値Ｉｐを入力とするパル
ス電源３Ｆｉ、設定値ｘｐに基づきパルス電流ｒｐを出
力する。このパルス′岨流Ｉｐはパルス電流検出器４に
よって正確にその平均電流値工ｐｔとして検出されて電
流合成器５に入力される。この′電流合成器５はパルス
電流Ｉｐとベース電源６０ベース電流１Ｂとを加算合成
し、その合成電流を平均電流検出器７を介して溶接棒Ｃ
図示省略）Ｋ浴接電流として通電する。上記平均電流検
出器７は浴接電流の平均値をＩＡ、として検出する。A pulse power source 3Fi inputs the setting value Ip of the pulse current setting device 1, and outputs a pulse current rp based on the setting value xp. This pulse current Ip is accurately detected by the pulse current detector 4 as its average current value pt, and is input to the current combiner 5. This 'current combiner 5 adds and synthesizes the pulse current Ip and the base current 1B of the base power source 60, and sends the combined current to the welding rod C via the average current detector 7.
(not shown) energizes as a K bath contact current. The average current detector 7 detects the average value of the bath contact current as IA.
上記平均電流設定器２からの設定値エヘパルス電流検出
器４からの検出値１１１１及び平均電流検出器７からの
検出値ＩＡ＋を入力とする制御器８は、設定（１ｉ１Ａ
と検出ｊｆｉ ＩＡ＋が等しくなるようにベース電源６
から出力されるペース′亀流ＩＢをフィードバック制御
する。この制御器８は、設定した溶接電流ＩＡの平均値
ＩＡ＋５＞らパルス電流Ｉｐの平均値１ｐｌを減算しｆ
ｃ電流をベース電流Ｉｎとするのであるが、実際の浴接
電流の平均値ＩＡＩが設定した浴接電流の平均値ＩＡが
一致しないときには検出埴工Ａｌと設定値工Ａとの差ｖ
ｃ基づいてその差が零になるようにフィルドパック制御
する。The controller 8 inputs the set value from the average current setter 2, the detected value 1111 from the pulse current detector 4, and the detected value IA+ from the average current detector 7.
Base power supply 6 so that detection jfi IA+ is equal to
The pace 'Kameryu IB' output from the controller is feedback-controlled. This controller 8 subtracts the average value 1pl of the pulse current Ip from the set average value IA+5 of the welding current IA, and
c current is taken as the base current In, but when the actual average value IAI of the bath contact current does not match the set average value IA of the bath contact current, the difference between the detected value A and the set value A is calculated.
Fill pack control is performed based on c so that the difference becomes zero.
なお、この制御器８が設定値ＩＡと検ｔＢｉｇｆＩｉｕ
とを等しくする制御は上記のように差に基づくだけでは
なく、例えば２つの値の比に基づい七行ってもよく、任
意に選択できるものである。Note that this controller 8
The control to make these equal is not only based on the difference as described above, but may also be performed based on the ratio of two values, for example, and can be arbitrarily selected.
なお％第２図に示すように、パルス電流とは坊定の矩形
波が繰返し発せられるものであり、ペース電流とは膚足
値以下の一屋の直流電流であり、浴接電流とはペース電
流にパルス電流を重畳したものである。As shown in Fig. 2, a pulse current is one in which a constant rectangular wave is repeatedly emitted, a pace current is a direct current of less than the foot current, and a bath current is a direct current that is below the pace. This is a current with a pulse current superimposed on it.
この開明は、以上のとおり、パルス電流と溶接電流の平
均値とを設定すると、実際のパルス′ぼ流及び実際の溶
接電流の平均値とを検出し、実際の溶接電流の平均値が
設定した浴接電流よりも大きい場合Ｋｔ′ｉペース電流
を小さくすることＫよジ、逆に実際の浴接電流の平均値
が設定した浴接′電流の平均値よりも小さい場合にはベ
ース１を流を大きくすることにエリ、実際のＦ６接電流
の平均値が設定した浴接電ωｔの平均値に等しくなる工
うにペース電流をフィードバック制御しているため、溶
接棒に通電される浴接電流の平均値は常に一定に保たれ
るので、心材への入熱が一足となり、心材の溶解量が一
定に保持され、浴接後の状態が一様となるなど定安しｆ
Ｃ浴接が得られる。また、浴接電流の平均値が一定に保
たれ、かつ予め設定されたパルス電流は一定のパルスが
周期的に繰返し発せられるので、パルス電流が通電され
ているときのピーク電流もほぼ一定に保つことができる
。即ち、消耗電極の場合は、ピーク電流がほぼ一定であ
るためスプレー移行を確実に行なえる。また、非泊耗電
惚の場合は、ビーク１１ｔ流がほぼ一定であるため安定
した浴は込みが得られ、浴接電流の平均値を一定にする
ペース電流に工って俗は落ちを確実に防止でき、また、
ペース電流を〃Ωえることにエフゆっくりと浴接箇店を
冷却するので、非常に安定した浴接が得られる。As described above, when the pulse current and the average value of the welding current are set, the actual pulse current and the average value of the actual welding current are detected, and the average value of the actual welding current is set. If the average value of the actual bath current is smaller than the set average value of the set bath current, then the base 1 current should be made smaller. Since the pace current is feedback-controlled so that the average value of the actual F6 contact current is equal to the average value of the set bath contact current ωt, the bath contact current applied to the welding rod can be increased. Since the average value is always kept constant, the heat input to the heartwood is reduced, the amount of melted heartwood is kept constant, and the state after bathing is uniform, resulting in stable conditions.
C bath contact is obtained. In addition, since the average value of the bath current is kept constant, and the preset pulse current is periodically emitted as a constant pulse, the peak current when the pulse current is applied is also kept almost constant. be able to. That is, in the case of a consumable electrode, since the peak current is approximately constant, spray transfer can be performed reliably. In addition, in the case of non-depleted electric current, since the peak 11t flow is almost constant, stable bath filling can be obtained, and it is common practice to create a pace current that keeps the average value of the bath contact current constant to ensure drop. can be prevented, and
By increasing the pace current, the bath welding points are slowly cooled down, resulting in extremely stable bath welding.
第１図はこの発明の一例を示すブロック図、第２図はこ
の発明のも電流を説明するための電流波形図である。
１・・・パルス電流設層器、２・・・平均電流設定器、
３・・・パルス″ＫＩＪ’ｉ＜ｂ ４・・・パルス゛を
流検出器、５・・・電流合成器、６・・・ペース電源、
７・・・平均篭＃を構出器、８・・・制偶器FIG. 1 is a block diagram showing an example of the present invention, and FIG. 2 is a current waveform diagram for explaining the current of the present invention. 1... Pulse current setting device, 2... Average current setting device,
3...Pulse "KIJ'i<b" 4...Pulse flow detector, 5...Current synthesizer, 6...Pace power supply,
7... Average basket # detector, 8... Limiter
Claims (1)
れるパルス電流を合成した溶接電流な浴接俸に通電して
浴接するパルスアークポ接において、上記パルス電流と
浴接電流の平均値とを設定し、検出した実際のパルス電
流の平均値と実際の溶接電流の平均値ＶＣ４づき実際の
浴接電流の平均値が設定した浴接電流の平均箇に一致す
るよう上記ベース電ｔ＆をフィードバック制御する１う
にしたことｔ−ＩＷｌ徴とするパルスアークｍ接方法０In pulsed arc welding, which is a welding current that is a combination of a base current that is a constant current below the m constant value and a pulsed current that is periodically emitted, the average value of the above pulse current and bath welding current is set. Then, based on the detected average value of the actual pulse current and the average value of the actual welding current VC4, the base electric current t& is feedback-controlled so that the average value of the actual bath welding current matches the set average value of the bath welding current. 1 Pulse arc m-contact method with t-IWl characteristic 0
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12088981A JPS5823571A (en) | 1981-07-31 | 1981-07-31 | Pulse arc welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12088981A JPS5823571A (en) | 1981-07-31 | 1981-07-31 | Pulse arc welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5823571A true JPS5823571A (en) | 1983-02-12 |
Family
ID=14797480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12088981A Pending JPS5823571A (en) | 1981-07-31 | 1981-07-31 | Pulse arc welding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5823571A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102873435A (en) * | 2012-09-25 | 2013-01-16 | 北京工业大学 | Gas metal arc welding method and system |
-
1981
- 1981-07-31 JP JP12088981A patent/JPS5823571A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102873435A (en) * | 2012-09-25 | 2013-01-16 | 北京工业大学 | Gas metal arc welding method and system |
| CN102873435B (en) * | 2012-09-25 | 2014-07-09 | 北京工业大学 | Gas metal arc welding method and system |
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