JPH05337643A - Welding restarting method - Google Patents
Welding restarting methodInfo
- Publication number
- JPH05337643A JPH05337643A JP4173833A JP17383392A JPH05337643A JP H05337643 A JPH05337643 A JP H05337643A JP 4173833 A JP4173833 A JP 4173833A JP 17383392 A JP17383392 A JP 17383392A JP H05337643 A JPH05337643 A JP H05337643A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- size
- shape
- molten pool
- pool
- 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.)
- Granted
Links
- 238000003466 welding Methods 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 23
- 238000002844 melting Methods 0.000 description 8
- 230000008018 melting Effects 0.000 description 8
- 239000011324 bead Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000010953 base metal Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
Landscapes
- Image Processing (AREA)
- Image Analysis (AREA)
Abstract
(57)【要約】
【目的】 個人差が生じない均一なつなぎ形状の溶接が
自動的にできるようにする。
【構成】 溶接ワイヤ１１と溶接すべき母材１２との間
に電圧を加え、溶接ワイヤ１１によって母材１２を溶接
しながら溶接部をカメラにより撮影して溶融プールの大
きさ、形状を画像処理装置１４に記憶させ、溶接停止後
の再スタート時に、アークによって溶接停止時の溶融プ
ールの位置を再溶融し、溶融した溶融プールの大きさ、
形状と前記記憶された溶融プールの大きさ、形状とを画
像処理装置１４によって比較し、溶融した溶融プールの
大きさ、形状が前記記憶された溶融プールの大きさ、形
状にほぼ一致したことを画像処理装置１４が検出した時
溶接を開始して均一なつなぎ形状の溶接を行う。
(57) [Summary] [Purpose] To automatically perform uniform joint-shaped welding without individual differences. [Structure] A voltage is applied between a welding wire 11 and a base material 12 to be welded, and while welding the base material 12 with the welding wire 11, the welded portion is photographed by a camera to image-process the size and shape of the molten pool. The size of the molten pool, which is stored in the device 14 and remelts the position of the molten pool when the welding is stopped by the arc at the time of restarting after the welding is stopped,
The shape and the size and shape of the stored molten pool are compared by the image processing device 14, and it is confirmed that the size and shape of the molten molten pool substantially match the size and shape of the stored molten pool. When the image processing device 14 detects the welding, the welding is started to perform uniform joint-shaped welding.
Description
【０００１】[0001]
【産業上の利用分野】本発明は溶接を行っている時に、
溶接ワイヤの終了などによって溶接を停止し、溶接ワイ
ヤを交換した後、溶接を再開するような場合における溶
接再スタート方法に関するものである。BACKGROUND OF THE INVENTION The present invention, when performing welding,
The present invention relates to a welding restart method in the case where welding is stopped when the welding wire is finished, the welding wire is replaced, and then the welding is restarted.
【０００２】[0002]
【従来の技術】ＴＩＧ自動溶接では、溶接ワイヤが無く
なってしまうと、溶接ワイヤを送給しない状態で溶接を
続行することになる。2. Description of the Related Art In TIG automatic welding, when the welding wire is used up, the welding is continued without feeding the welding wire.
【０００３】このため従来は、オペレータが溶接ワイヤ
の残量を確認しながら溶接作業を施工し、溶接ワイヤが
無くなったことがわかると溶接を停止し、溶接ワイヤを
交換した後、位置を合わせて溶接を再開していた。For this reason, conventionally, an operator carries out welding work while confirming the remaining amount of the welding wire, and when it is found that the welding wire is exhausted, the welding is stopped, the welding wire is replaced, and then the positions are adjusted. We were restarting welding.
【０００４】図３は溶接箇所の拡大平面図であって、溶
接を行っている部分には、溶融プール１と呼ばれる湯溜
まりができ、図３の右方から左方へ向かって溶接して行
くと、この溶融プール１が冷却して凝固し、ビード２に
なる。溶接ワイヤが無くなって溶接を停止する時にはビ
ード２の形をよくするため、幅方向の左右にアークを振
ってその振幅を次第に小さくして湯溜まりを先細りにす
ることによりクレータ割れを防止するためのクレータ処
理３を長さＬ1にわたって施し、クレータ処理３を施し
た先端をアーク消去点４として溶接を停止する。FIG. 3 is an enlarged plan view of a welded portion. A molten pool called a molten pool 1 is formed at the portion where welding is performed, and welding is performed from right to left in FIG. Then, the molten pool 1 is cooled and solidified into beads 2. In order to improve the shape of the bead 2 when the welding wire is used up and the welding is stopped, an arc is struck to the left and right in the width direction to gradually reduce its amplitude and taper the pool to prevent crater cracking. The crater treatment 3 is performed over the length L 1 , and the tip where the crater treatment 3 is performed is set as the arc erasing point 4 and the welding is stopped.
【０００５】溶接ワイヤを交換した後、位置を合わせて
溶接を再開する時には、溶接ワイヤ交換前の溶融プール
１から長さＬ2（通常プール前後寸法ａのｎ個分）だけ
戻ってアークをスタートさせて溶融プール１まで予熱し
ながら前進し、凝固している溶融プール１を溶解して溶
融プール１の面積、形状等の大きさが溶接停止前の大き
さとほぼ同じになってから新しい溶接ワイヤを溶融プー
ル１に挿入し、溶接箇所を前進させて溶接を続行してい
る。When the welding wire is replaced and the welding is restarted after aligning the positions, the molten pool 1 before the replacement of the welding wire is returned by the length L 2 (n pieces of the normal pool front-rear dimension a) to start the arc. Then, the molten pool 1 is advanced to the molten pool 1 while being preheated, and the solidified molten pool 1 is melted so that the area, shape, etc. of the molten pool 1 become almost the same as the size before the welding was stopped. Is inserted into the molten pool 1, the welding location is advanced, and welding is continued.
【０００６】[0006]
【発明が解決しようとする課題】従来はオペレータが目
で見ながら溶接ワイヤ交換前の溶融プール１の大きさ
と、溶接再開時の溶融プール１の大きさとを判断してい
たので、記憶状態等による個人差が生じて溶接のつなぎ
形状が均一にならない欠点があった。Conventionally, since the operator visually judged the size of the molten pool 1 before exchanging the welding wire and the size of the molten pool 1 at the time of restarting welding, it depends on the memory state or the like. There was a drawback that the joint shape of the welding was not uniform due to individual differences.
【０００７】本発明はこのような従来の欠点を除去し、
個人差が生じない均一なつなぎ形状の溶接が自動的にで
きるようにした溶接再スタート方法を提供することを目
的とするものである。The present invention eliminates such conventional drawbacks,
It is an object of the present invention to provide a welding restarting method capable of automatically performing uniform joint-shaped welding without individual differences.
【０００８】[0008]
【課題を解決するための手段】本発明の溶接再スタート
方法は、溶接ワイヤと溶接すべき母材との間に電圧を加
え、前記溶接ワイヤによって母材を溶接しながら溶接部
をカメラにより撮影して溶融プールの大きさ、形状を画
像処理装置に記憶させ、溶接停止後の再スタート時に、
アークによって前記溶接停止時の溶融プールの位置を再
溶融し、該溶融した溶融プールの大きさ、形状と前記記
憶された溶融プールの大きさ、形状とを前記画像処理装
置によって比較し、前記溶融した溶融プールの大きさ、
形状が前記記憶された溶融プールの大きさ、形状にほぼ
一致したことを前記画像処理装置が検出した時溶接を開
始することを特徴とするものである。According to the welding restart method of the present invention, a voltage is applied between a welding wire and a base material to be welded, and the welded portion is photographed by a camera while welding the base material. Then, the size and shape of the molten pool are stored in the image processing device, and when restarting after stopping welding,
The position of the molten pool when the welding is stopped is re-melted by an arc, and the size and shape of the molten molten pool are compared with the stored size and shape of the molten pool by the image processing device, and the melting is performed. The size of the melt pool,
The welding is started when the image processing apparatus detects that the shape substantially matches the size and shape of the stored molten pool.
【０００９】[0009]
【作用】溶接時、溶接部をカメラで撮影して画像処理装
置により溶接部の溶融プールの大きさ、形状を記憶して
おき、溶接再スタート時に、溶接を停止した時の溶融プ
ールの位置をアークによって再溶融し、溶融した溶融プ
ールの大きさが記憶された溶融プールの大きさ、形状に
ほぼ一致したことを画像処理装置が検出した時、溶接ワ
イヤを溶融プールに挿入して溶接を再開することによっ
て、溶接つなぎ形状を均一にする。[Operation] During welding, the size of the weld pool of the weld is recorded by the image processing device by taking a picture of the weld at the time of welding, and when the welding is restarted, the position of the melt pool when the weld is stopped can be determined. When the image processing device detects that the size of the melted pool remelted by the arc and the size of the melted pool almost matched the stored size and shape of the melted pool, the welding wire was inserted into the melted pool and welding was restarted. By doing so, the welded joint shape is made uniform.
【００１０】[0010]
【実施例】以下、本発明の実施例を図を参照して説明す
る。Embodiments of the present invention will be described below with reference to the drawings.
【００１１】図１は本発明の方法に使用する装置の一実
施例の系統図であって、制御装置５には高い溶接電圧を
発生する溶接電源６と、が接続されており、且つ溶接電
源６で発生した高い溶接電圧がトーチ８に取付けた電極
９と母材１２との間に加えられ、更にチップ１０に案内
された溶接ワイヤ１１が図示しないワイヤ送給装置によ
って供給されるよう制御装置５により制御されて遠隔溶
接が行われるようになっている。FIG. 1 is a system diagram of an embodiment of an apparatus used in the method of the present invention, in which a welding power source 6 for generating a high welding voltage is connected to a control unit 5 and a welding power source. The high welding voltage generated at 6 is applied between the electrode 9 attached to the torch 8 and the base material 12, and further the welding wire 11 guided by the tip 10 is supplied by a wire feeder not shown. The remote welding is performed under the control of No. 5.
【００１２】溶接ワイヤ１１で母材１２を溶接している
溶接部にできる溶融プール１（図３参照）の付近はカメ
ラ１３によって常に撮影し、溶融プール１の大きさ、形
状を画像処理装置１４に記憶しておくことができるよう
になっていると共に、画像処理装置１４からの信号が制
御装置５に入力されるようになっている。カメラ１３に
て撮影された画像信号は、画像処理装置１４により２値
化処理され、図３の前後寸法ａと左右寸法ｂ及び輪郭か
ら、溶融プール１の大きさ、形状が判断されるようにな
っている。溶融プール１の大きさは面積、又は前後寸法
ａと左右寸法ｂから求め、更に溶融プール１の形状は前
後寸法ａと左右寸法ｂ、又は輪郭から求める。The vicinity of the molten pool 1 (see FIG. 3) formed in the welded portion where the base material 12 is welded by the welding wire 11 is constantly photographed by the camera 13, and the size and shape of the molten pool 1 are determined by the image processing device 14. In addition to being able to be stored in, the signal from the image processing device 14 is input to the control device 5. The image signal captured by the camera 13 is binarized by the image processing device 14 so that the size and shape of the molten pool 1 can be determined from the front-rear dimension a and the left-right dimension b and the contour in FIG. Is becoming The size of the molten pool 1 is obtained from the area or the front-rear dimension a and the left-right dimension b, and the shape of the molten pool 1 is further determined from the front-rear dimension a and the left-right dimension b or the contour.
【００１３】又、図１には溶接ワイヤ１１の有無（溶接
ワイヤ切れ）を検出できるようにした構成が備えてあ
る。即ち、制御装置５に低い電圧のワイヤ電源７が接続
してあり、該ワイヤ電源７はチップ１０を介して溶接ワ
イヤ１１と母材１２との間に加えられるようになってい
る。溶接ワイヤ１１の先端が母材１２に接触している時
にはワイヤ電源７に対して閉回路が形成され、溶接ワイ
ヤ１１と母材１２との間に電流が流れることになるが、
溶接ワイヤ１１が母材１２に接触していない時にはワイ
ヤ電源７に対して閉回路が形成されなくなり、溶接ワイ
ヤ１１と母材１２との間に電流が流れなくなる。このよ
うな溶接ワイヤ１１と母材１２との間の電流の有無は、
ワイヤ電源７から制御装置５に信号として入力されるよ
うになっている。Further, FIG. 1 is provided with a configuration capable of detecting the presence or absence of the welding wire 11 (welding wire breakage). That is, a low voltage wire power source 7 is connected to the control device 5, and the wire power source 7 is applied between the welding wire 11 and the base material 12 via the tip 10. When the tip of the welding wire 11 is in contact with the base material 12, a closed circuit is formed with respect to the wire power source 7, and a current flows between the welding wire 11 and the base material 12,
When the welding wire 11 is not in contact with the base material 12, a closed circuit is not formed with respect to the wire power supply 7, and no current flows between the welding wire 11 and the base material 12. Whether or not there is an electric current between the welding wire 11 and the base material 12 is
A signal is input from the wire power supply 7 to the control device 5.
【００１４】次に、図１の作用を図２のフローチャート
と共に説明する。Next, the operation of FIG. 1 will be described with reference to the flowchart of FIG.
【００１５】先ず溶接電源６から電極９と母材１２との
間に溶接電圧を加え、電極９と母材１２との間でアーク
を発生させてアークスタート１５を開始し、走行停止１
６のまま母材１２の溶融を行って、最初にできる溶融プ
ール１の形状、面積等の大きさをカメラ１３で撮影して
画像処理装置１４にプール形状を記憶１７し、プールの
大きさ、形状（例えば図３の溶融プール１の前後寸法ａ
と左右寸法ｂ、輪郭）が予定されたある値に達したとき
に、溶接ワイヤ１１を送給すると共に、ワイヤ電源７か
ら溶接ワイヤ１１と母材１２との間に検知用の低い電圧
を加えてワイヤ送給・通電１８を開始する。このとき溶
接ワイヤ１１の送給によって溶融プール１が冷却される
のでカメラ１３で溶融プール１を撮影して画像処理装置
１４により、溶融プール１の大きさを最初にできた溶融
プール１の大きさと比較演算するプール形状比較１９を
行い溶融プール１が所要の大きさ、形状になったら走行
開始２０をし、以後プール形状比較１９でリアルタイム
に比較演算した誤差が予め定めた上限値、下限値の範囲
内であれば、溶接を進めて行く。First, a welding voltage is applied from the welding power source 6 between the electrode 9 and the base material 12, an arc is generated between the electrode 9 and the base material 12, the arc start 15 is started, and the traveling stop 1
The base material 12 is melted as it is, and the size, such as the shape and area of the molten pool 1 that can be formed first is photographed by the camera 13 and the pool shape is stored 17 in the image processing device 14, and the pool size, Shape (for example, front-back dimension a of the molten pool 1 in FIG. 3)
And the horizontal dimension b, contour) have reached a predetermined value, the welding wire 11 is fed and a low voltage for detection is applied from the wire power source 7 between the welding wire 11 and the base material 12. To start wire feeding / energization 18. At this time, since the melting pool 1 is cooled by the feeding of the welding wire 11, the camera 13 takes an image of the melting pool 1 and the image processing device 14 sets the size of the melting pool 1 to the size of the melting pool 1 that was initially formed. The pool shape comparison 19 for comparison calculation is performed, and when the molten pool 1 has a required size and shape, the running start 20 is performed, and thereafter, the error calculated by the pool shape comparison 19 in real time has a predetermined upper limit value and a lower limit value. If it is within the range, proceed with welding.
【００１６】一方、前記溶接ワイヤ送給・通電１８を行
ったとき、プール形状比較１９が満足されない場合は、
そのまま現位置で溶接を繰返し、ｎ回繰返しても不可の
場合には全停止・警報３１を行う。On the other hand, if the pool shape comparison 19 is not satisfied when the welding wire is fed / energized 18,
Welding is repeated at the current position as it is, and if it is not possible to repeat n times, all stops / alarm 31 is issued.
【００１７】溶接ワイヤ１１の送給が行われている時に
は、溶接ワイヤ１１の先端が母材１２に接触しているた
め溶接ワイヤ１１と母材１２との間に電流が流れ、ワイ
ヤ通電２１となっていて制御装置５に信号として入力さ
れ、溶接続行２２の状態が継続する。When the welding wire 11 is being fed, since the tip of the welding wire 11 is in contact with the base material 12, a current flows between the welding wire 11 and the base material 12, and the wire energization 21 is performed. Then, the signal is input to the controller 5 as a signal, and the state of the welding continuation 22 continues.
【００１８】溶接ワイヤ１１が消耗して完全に無くなれ
ば、溶接ワイヤ送給モータ（図示せず）が回転していて
も溶接ワイヤ１１が送給されないので、溶接ワイヤ１１
と母材１２との間に電流が流れなくなって、ワイヤ切れ
送給停止２３となる。このためワイヤ電源７から制御装
置５に電流が遮断した信号が入力され、制御装置５は幅
方向の左右にアークを振ってその振幅を次第に小さくし
て湯溜まりを先細りにするクレータ処理３（図３参照）
を行い、溶接を停止させる走行停止２４をする。この時
には、制御装置５に取付けられている警報又はモニタ等
によって、溶接ワイヤ１１が切れたことを表示する。こ
の表示によってオペレータは溶接ワイヤ１１が切れたこ
とを知り、新しい溶接ワイヤ１１をチップ１０に装着す
るワイヤ交換２５を行う。If the welding wire 11 is consumed and completely lost, the welding wire 11 is not fed even if the welding wire feeding motor (not shown) is rotating.
The electric current stops flowing between the base material 12 and the base material 12, and the wire breakage feed stop 23 occurs. For this reason, a signal that the current is cut off is input from the wire power supply 7 to the control device 5, and the control device 5 swings an arc to the left and right in the width direction to gradually reduce the amplitude of the crater process 3 (Fig. (See 3)
Then, the traveling stop 24 for stopping the welding is performed. At this time, the fact that the welding wire 11 has been broken is displayed by an alarm or monitor attached to the control device 5. By this display, the operator knows that the welding wire 11 has been broken, and performs the wire exchange 25 for mounting the new welding wire 11 on the tip 10.
【００１９】溶接ワイヤ１１を交換した後、位置を合わ
せて溶接を再開するため、アーク消去点４から長さＬ1
と長さＬ2（ａ×ｎ）の和だけ後退する走行逆転２６を
行う。このとき溶接装置は台車の走行パルスをカウント
しているので、Ｌ1の逆算と予め設定したＬ2の逆算が行
われるように後退位置を決める。次にアークを点弧する
アークスタート２７をして溶接ワイヤ交換前の溶融プー
ル１までの長さＬ2を前進して加熱する走行２８を行っ
た後走行停止する。そして凝固している溶融プール１を
溶解しながらその大きさをカメラ１３で撮影し、画像処
理装置１４に前記プール形状記憶１７してある溶融プー
ル１の大きさ、形状と比較演算して、大きさがほぼ同じ
である許容値内になると、新しい溶接ワイヤ１１を溶融
プール１に挿入すると共にワイヤ電源７から溶接ワイヤ
１１と母材１２との間に検知用の低い電圧を加えるワイ
ヤ送給・通電１８を行い、カメラ１３で溶融プール１を
撮影して画像処理装置１４により、溶融プール１の大き
さ、形状を記憶した溶融プール１の大きさ、形状とリア
ルタイムで比較演算するプール形状比較１９を行いなが
ら走行開始２０をし、比較演算した誤差が予め定めた上
限値、下限値の範囲内であれば、溶接を進めて行く。所
定長さの溶接を行って停止位置２９に達すると、溶接は
終了３０になる。[0019] After replacing the welding wire 11, to resume the welding Align, length L 1 from the arc quenching point 4
Performing driving reversal 26 to retract only the sum of the bets length L 2 (a × n). At this time, since the welding device counts the traveling pulses of the carriage, the backward position is determined so that the backward calculation of L 1 and the preset backward calculation of L 2 are performed. Next, an arc start 27 for igniting the arc is performed, and a run 28 for moving forward and heating the length L 2 up to the molten pool 1 before exchanging the welding wire is performed, and then the run is stopped. Then, the size of the molten pool 1 which is solidified is taken by the camera 13 while being melted, and the size and shape of the molten pool 1 stored in the pool shape memory 17 in the image processing device 14 are compared and calculated to determine the size. When the values are within the permissible value that is almost the same, a new welding wire 11 is inserted into the molten pool 1 and a low voltage for detection is applied between the welding wire 11 and the base material 12 from the wire power source 7 A pool shape comparison 19 is performed in which electricity is supplied to the camera 13, the melting pool 1 is photographed by the camera 13, and the size and shape of the melting pool 1 in which the size and shape of the melting pool 1 are memorized by the image processing device 14 are calculated in real time. The running start 20 is performed while performing the welding, and if the error calculated by comparison is within the range of the upper limit value and the lower limit value set in advance, welding is advanced. When the welding is performed for a predetermined length and reaches the stop position 29, the welding ends 30.
【００２０】[0020]
【発明の効果】本発明は、溶接停止状態から溶接を再開
する時、溶融プールの大きさ、形状が予め記憶しておい
た大きさ、形状になるようにして再スタートさせるの
で、溶融プールの大きさ、形状が停止前とほぼ同じにな
って、個人差が生じない均一なつなぎ形状の溶接ができ
る効果がある。According to the present invention, when the welding is restarted from the stopped state, the size and shape of the molten pool are restarted so that the size and the shape are stored in advance. Since the size and shape are almost the same as before the stop, there is an effect that a uniform joint shape welding can be performed without causing individual differences.
【図１】本発明の方法に使用する装置の一実施例の系統
図である。FIG. 1 is a system diagram of an embodiment of an apparatus used in the method of the present invention.
【図２】本発明の方法のフローチャートである。FIG. 2 is a flow chart of the method of the present invention.
【図３】溶接箇所の拡大平面図である。FIG. 3 is an enlarged plan view of a welded portion.
１ 溶融プール １１ 溶接ワイヤ １２ 母材 １３ カメラ １４ 画像処理装置 1 Molten Pool 11 Welding Wire 12 Base Metal 13 Camera 14 Image Processing Device
Claims (1)
圧を加え、前記溶接ワイヤによって母材を溶接しながら
溶接部をカメラにより撮影して溶融プールの大きさ、形
状を画像処理装置に記憶させ、溶接停止後の再スタート
時に、アークによって前記溶接停止時の溶融プールの位
置を再溶融し、該溶融した溶融プールの大きさ、形状と
前記記憶された溶融プールの大きさ、形状とを前記画像
処理装置によって比較し、前記溶融した溶融プールの大
きさ、形状が前記記憶された溶融プールの大きさ、形状
にほぼ一致したことを前記画像処理装置が検出した時溶
接を開始することを特徴とする溶接再スタート方法。1. An image processing apparatus for measuring the size and shape of a molten pool by applying a voltage between a welding wire and a base material to be welded, photographing the weld portion with a camera while welding the base material with the welding wire. The position of the molten pool when the welding is stopped is remelted by the arc at the time of restarting after the welding is stopped, and the size and shape of the melted molten pool and the size and shape of the stored molten pool are stored. Are compared by the image processing device, and welding is started when the image processing device detects that the size and shape of the melted molten pool substantially match the size and shape of the stored molten pool. Welding restart method characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17383392A JP3221069B2 (en) | 1992-06-08 | 1992-06-08 | How to restart welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17383392A JP3221069B2 (en) | 1992-06-08 | 1992-06-08 | How to restart welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05337643A true JPH05337643A (en) | 1993-12-21 |
| JP3221069B2 JP3221069B2 (en) | 2001-10-22 |
Family
ID=15968007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17383392A Expired - Fee Related JP3221069B2 (en) | 1992-06-08 | 1992-06-08 | How to restart welding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3221069B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109079325A (en) * | 2018-10-23 | 2018-12-25 | 吉林大学 | Wire filling laser welding transient mode real time monitoring apparatus and method |
-
1992
- 1992-06-08 JP JP17383392A patent/JP3221069B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109079325A (en) * | 2018-10-23 | 2018-12-25 | 吉林大学 | Wire filling laser welding transient mode real time monitoring apparatus and method |
| CN109079325B (en) * | 2018-10-23 | 2023-11-21 | 吉林大学 | Laser filler wire welding transition mode real-time monitoring device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3221069B2 (en) | 2001-10-22 |
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