JPS5985372A - Wire fusing method at end of pulse arc welding - Google Patents
Wire fusing method at end of pulse arc weldingInfo
- Publication number
- JPS5985372A JPS5985372A JP19432382A JP19432382A JPS5985372A JP S5985372 A JPS5985372 A JP S5985372A JP 19432382 A JP19432382 A JP 19432382A JP 19432382 A JP19432382 A JP 19432382A JP S5985372 A JPS5985372 A JP S5985372A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- current
- fusing
- welding
- pulse
- 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
- B23K9/09—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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
- Arc Welding In General (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はパルスアーク溶接終了時のワイヤ溶断方法、特
に溶接終了時に母材に溶着したワイヤを切離すパルスア
ーク溶接終了時のワイヤ溶断方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wire fusing method at the end of pulsed arc welding, and more particularly to a wire fusing method at the end of pulsed arc welding for cutting off the wire welded to the base metal at the end of welding.
パルスアーク溶接はアーク溶接ワイヤ或いはチップへパ
ルスアーク電流を供給し、これらアーク溶接ワイヤ又は
チップと母料間にアーク放電を行い、このアーク熱によ
シアーク溶接ワイヤを母材上に溶融せしめ、母材に所望
の被溶接部材を結合固定するものであシ、作業が容易で
あり、また結合部の機械的特性が優れている等からパル
スアーク溶接は各種製造部門において広くオリ用されて
いる。In pulsed arc welding, a pulsed arc current is supplied to the arc welding wire or tip, arc discharge is generated between the arc welding wire or tip and the base material, and the arc heat melts the shear arc welding wire onto the base material, causing the base metal to melt. Pulsed arc welding is widely used in various manufacturing departments because it connects and fixes a desired member to a material, is easy to work with, and has excellent mechanical properties at the joint.
この種のパルスアーク溶接は通常第１図に示すようにパ
ルス電流１００とペース電ｍ、 ２００とで形成される
パルスアーク電流をアークワイヤＶに供給し、第２図に
示すようにアークワイヤ１０と母材１２間にアーク３０
０を発生することＫよシ行われている。This type of pulsed arc welding usually involves supplying a pulsed arc current formed by a pulsed current 100 and a pace electric current m, 200 to an arc wire V as shown in FIG. Arc 30 between and base metal 12
Generating 0 is done as well.
これに対し溶接の停止はベース電流２００をオフするこ
とにより達成している。すなわち、ベース電流がオフさ
れた溶接終了期間Ｔにあってはワイヤ１０にパルス電流
１００のみが供給される結果、アーク３００がベース期
間において遮断されることとなる。そしてパルス電流１
００のみではアーク３００を発生するだけのエネルギに
乏しく、Ｍ ｍＪペース電流２００をオフすることによ
シ溶接の停止が達成される。On the other hand, welding is stopped by turning off the base current 200. That is, during the welding end period T in which the base current is turned off, only the pulse current 100 is supplied to the wire 10, so that the arc 300 is interrupted during the base period. and pulse current 1
00 alone does not have enough energy to generate the arc 300, and stopping the welding is achieved by turning off the M mJ pace current 200.
一般的にベース電流２００のオン・オフスイッチはワイ
ヤ送給装置のスイッチに連動されている。Generally, the on/off switch of the base current 200 is linked to the switch of the wire feeder.
従って、前記ベース電流２００のオフ作用によシワイヤ
１０の送給装置もオフ状態となシ、ワイヤ送給用モータ
が停止する゛。しかしこのモータはワイヤ送給ドラムの
回転慣性によシワイヤ１０の送給を急停止することが困
１１（ｉであり、このためにベース電流２００がオフさ
れた罠も拘らずワイヤ１０が引き続き送給されることと
なシ、この結果第２図に示すようにワイヤ１０の先端が
母材表面に当接してこのワイヤ先端が母材１２に溶着固
定される。Therefore, due to the OFF action of the base current 200, the feeding device for the wire wire 10 is also turned off, and the wire feeding motor is stopped. However, it is difficult for this motor to suddenly stop feeding the shear wire 10 due to the rotational inertia of the wire feed drum (i), and for this reason, the wire 10 continues to be fed even though the base current 200 is turned off. As a result, as shown in FIG. 2, the tip of the wire 10 comes into contact with the surface of the base material, and the tip of the wire is welded and fixed to the base material 12.
このようにワイヤ１０が母＠表面に溶着固定してしまう
と溶接終了時のパルス電流１００によってはこの電流の
エネルギが小さいためワイヤ１゜を母材１２から溶断し
て切離すことが困難であり、このため第４図に示すよう
にワイヤ１ｏをベンチ等の工具で切離すという面倒な作
業を強いられていた。If the wire 10 is welded and fixed to the base metal surface in this way, it will be difficult to melt and separate the wire 1° from the base metal 12 because the energy of this current is small depending on the pulse current 100 at the end of welding. Therefore, as shown in FIG. 4, the wire 1o has to be cut off using a tool such as a bench, which is a troublesome task.
またこのようなパルスアーク溶接をロボット等によシ自
動的に行う場合には前述したようにワイヤ１０と母Ｉｆ
Ａ１２とが溶着固定する結果溶接トーチを他の溶接個所
に移動する際に溶接トーチが損傷する等の弊害があった
。In addition, when such pulse arc welding is automatically performed by a robot or the like, as described above, the wire 10 and the base if
As a result of A12 being welded and fixed, there were problems such as damage to the welding torch when the welding torch was moved to another welding location.
このような弊害を除去するため、溶接終了時にワイヤの
送給用モータを強制的に急停止できたとしても、この場
合にはワイヤ先端が母材１２と接触することなく一定の
間隙を保って停止するため、アークワイヤ先端が球状に
なシ、更にこの球状表面にスラッジＡｔのｌ（：＋縁物
が利殖する結果、再溶接時にとのワイーＶ先砧からアー
ク３００を発生するのが４永めで１トＩ屑０となり、こ
のため前式己スラッジを取除く面側な作Ｊ”＋￥をダ＋
ｉいられる等の欠点力″−あった。In order to eliminate such problems, even if the wire feeding motor can be forcibly stopped suddenly at the end of welding, in this case the wire tip will not come into contact with the base metal 12 and a certain gap will be maintained. In order to stop the arc wire, the tip of the arc wire is made into a spherical shape, and as a result of the sludge At l (: + fringe) accumulating on this spherical surface, an arc 300 is generated from the wee V tip during rewelding. After a long time, 1 ton of waste becomes 0, and for this reason, it is necessary to remove the sludge from the previous method.
I had a weak point, such as being angry.
本発明はｔ’ｉｉｌ述した従来の課題Ｋ ’ｆｋみなさ
れたものであり、その目的ｔｌ母Ｈに溶着したワイヤを
容易に切ト′１１すことができるとともにワイヤの先端
を尖鋭化させて再溶（′Ｖ：時におけるアークの発生を
容易化することができるパルスアーク溶接終了時のアー
クワイヤ溶１．’ｌｉ方法を提供することにある。The present invention has been made to solve the above-mentioned conventional problems, and its purpose is to easily cut the wire welded to the motherboard H, and to sharpen the tip of the wire. An object of the present invention is to provide a method for arc wire welding at the end of pulsed arc welding, which can facilitate the generation of arc at the time of remelting.
上記目的を玲成−するために、本発明は］切レスアーク
溶接の峠了時に先端部が母材に一旦溶にｔしたワイヤに
該ワイヤの溶１すｆエネルギ以上の溶１’Ｒｌｊ流を０
１．給してワイヤをｆＪ利から切＾ＩＦすと共にワイー
Ｖの先端を尖鋭化することを特徴とする。In order to achieve the above-mentioned object, the present invention applies a welding flow of more than the welding energy of the wire to the wire whose tip is once melted to the base metal at the completion of cutless arc welding. 0
1. It is characterized by supplying the wire to cut the wire from the fJ edge and sharpening the tip of the wire V.
以下■！１而にＪ１シづいて本発明の好適な実施例を説
明〜４′る。Below ■! A preferred embodiment of the present invention will now be described with reference to J1.
本発明ｌ（卦いて！ｌｆ徴的なことは、前述しブξよう
ｒ（パルスアーク溶接の終了時、すなわち溶接終了１１
゛１にパルスピーク市１流値を増大し、とオｔによりワ
イヤＫｍ断エネルギ以上のエネルギを有する溶断電流を
供給し、Ｒ１材に溶着したワイヤを切離すｔｌり成とし
たことである。The characteristics of the present invention are as described above (at the end of pulse arc welding, that is, at the end of welding 11).
The pulse peak current value is increased in (1), and a fusing current having an energy greater than the cutting energy of the wire Km is supplied by the tl to cut the wire welded to the R1 material.
本発明方法においては溶接終了Ｕ＠ 、すなわち溶接終
了時にモータがオフされてもその回転慣性によシアーク
ワイヤが微少量送給されアークワイヤの先端が母材に当
接して両者が溶着固定される。In the method of the present invention, even when the motor is turned off at the end of welding, the shear arc wire is fed in a small amount by its rotational inertia, and the tip of the arc wire contacts the base metal, and both are welded and fixed. .
この両者の溶着固定時にワイヤに溶断エネルギ以上のエ
ネルギを有する溶断電流を供給し、これによシワイヤを
母材との境界近傍ｒ〜を置において過熱溶断を行い両者
の切＋”ｉｉＣｔ、を実現する。When these two are welded and fixed, a fusing current having an energy higher than the fusing energy is supplied to the wire, and by this, the shear wire is overheated and fused at a position r~ near the boundary with the base metal, and the cutting of both +"iiCt is achieved. do.
上記溶１ｔ’ｆｒ？Ｕ、流のエネルギを溶ｉｆ：Ｉ？エ
ネルギ以上に増大するＫは各柚の方法が考えられ、５１
道宜溶接条件に適合した〕は適方法が採用される。The above melt 1t'fr? U, dissolve the energy of flow if: I? For K, which increases more than energy, various methods can be considered, and 51
If the welding conditions are met, an appropriate method will be adopted.
本第１実施例における溶断？１１．流１０２は ＃ｒｇ
５図に示すように、パルス７１肖＋ｆ、から成り、こ
のパルス電流のピーク値を通常溶接時のビーク１１４よ
シも高く形成しており、これによりワイヤに’ＩＦ；
ＩＪＴエネルギ以上の溶断電流１０２を供給できる。Fusing in the first embodiment? 11. Flow 102 is #rg
As shown in Fig. 5, the pulse current consists of a pulse 71 + f, and the peak value of this pulse current is higher than the peak 114 during normal welding, thereby causing the wire to have an IF;
A fusing current 102 greater than the IJT energy can be supplied.
また第２実施例における溶ＩＩノｒ屯υｉシ１０４１ｒ
、ｆ、、≧゛Ｂ６図に示すパルス電流から成り、この溶
断電流１０４のパルスピーク値を通常溶接時におけるパ
ルスピーク値とほぼ同一にする一方で、溶断電流１０４
のパルス幅を通常溶接時のパルス幅よりも広く形成し、
これにより溶断電流１０４のエネルギを溶断エネルギ以
上のエネルギとしている。Further, in the second embodiment, the molten II 1041r
, f, ≧゛The pulse current shown in Figure B6 is made, and while the pulse peak value of this fusing current 104 is made almost the same as the pulse peak value during normal welding, the fusing current 104
The pulse width is made wider than the pulse width during normal welding,
This makes the energy of the fusing current 104 greater than the fusing energy.
更に本第３実施例における溶断電流１０６は第７図に示
すパルス電流から成り、該パルス電流のパルス周波数を
通招溶接時におけるパルス周波数よりも商く設定してお
り、これにより溶断電流１０６のエネルギを溶断エネル
ギ以上のエネルギとすることが可能である。Furthermore, the fusing current 106 in this third embodiment is made of a pulsed current shown in FIG. It is possible to make the energy higher than the fusing energy.
前述した各実施列における溶接終了時におけるワイヤの
母材からの切離しは、いずれもワイヤに溶断エネルギ以
上のエネルギを有する溶断電、流１０２．１０４．１０
６を供給することにより行われておシ、これによシワイ
ヤの切離しが容易となシ溶接作業能率を向上することが
可能であシ、またロボット等による自動溶接に効果的に
適用することができる。The separation of the wire from the base metal at the end of welding in each of the above-mentioned rows is caused by a fusing electric current or current having an energy greater than the fusing energy of the wire.
6. This makes it possible to easily separate the shear wire and improve welding work efficiency, and it can also be effectively applied to automatic welding by robots, etc. can.
また、一旦母材に溶危・したワイヤを溶断して切離すこ
とによりこのワイヤの先？Ｗ破断面を尖鋭化することが
可能であり、またこの尖鋭化された破断面にはスラッジ
等の５゛色緑物が付着することがなく、従ってこれらの
結果、再溶接時におけるブー２３０００発生を極めて容
易に行うことが可能となる。In addition, by cutting the wire that has once melted into the base material by cutting it, it is possible to remove the tip of the wire. It is possible to sharpen the W fracture surface, and no green matter such as sludge adheres to the sharpened fracture surface.As a result, it is possible to reduce the occurrence of Boo 23000 during rewelding. can be carried out extremely easily.
以上説明したように本発明によれば、溶接終了時に母材
：（溶暗されたワイヤを極めて容易に切ト託すことがＵ
］能であシ、従ってロボット等の自動溶接作ｆｊにおい
ても従来生じたトーチの損（Ｍ等の弊害を確実に１′１
ミ去することが可能となる。As explained above, according to the present invention, it is possible to very easily transfer the base metal (blackened wire) at the end of welding.
] Therefore, even in automatic welding operations such as robots, it is possible to eliminate the damage caused by conventional torches (M, etc.) by 1'1.
It becomes possible to leave the room.
また前述したようにワイヤの切１ｊｊＥ Ｌ／を溶断に
よシ行うためワイヤの先端部を尖鋭化することが可能で
あシ、これによシ再溶接時におけるアークの発生を極め
て容易化することが可能となる。Furthermore, as mentioned above, since the wire is cut by fusing, it is possible to sharpen the tip of the wire, which greatly facilitates arc generation during rewelding. becomes possible.
第１図は従来のパルスアーク溶接終了時におけるペース
電流波形し、或２図はパルスアーク溶接の通常溶接状態
を示すらＣ略説り」図、第３図は溶接終了時におけるワ
イヤと母材との溶着状態を示す概略説明図、第４図は母
材がらワイヤを切離した状態を示す（ｔ７．略説明図、
第５図は本発明における溶接終了時に供給される溶断電
流の第１実施例波形図、第６図は本発明に係る溶接終了
時に供給する溶断電流の第２実施例波形図、第７図は本
発明に係るパルスアーク溶接の溶接終了時に供給する溶
断電流の第３実施例波形図である。
各図中同一部材ＶＣは同一符号を旬し、１ｏ／まワイヤ
、１２け母４°４、ｉｏｏはパルス電流、１０２．１０
４．１０６は溶断電流、Ｔは溶接終了ＪＩＪＪ間である
。
代理人 弁理士 葛 野 信 −（＃１か１名
）Figure 1 shows the pace current waveform at the end of conventional pulsed arc welding, Figure 2 shows the normal welding state of pulsed arc welding, and Figure 3 shows the wire and base metal at the end of welding. A schematic explanatory diagram showing the welded state of FIG. 4 shows a state where the wire is separated from the base material (t7.
FIG. 5 is a waveform diagram of a first embodiment of the fusing current supplied at the end of welding according to the present invention, FIG. 6 is a waveform diagram of a second embodiment of the fusing current supplied at the end of welding according to the present invention, and FIG. FIG. 7 is a waveform diagram of a third embodiment of a fusing current supplied at the end of pulsed arc welding according to the present invention. In each figure, the same members VC are given the same symbols, 1o/m wire, 12 scales 4°4, ioo is pulse current, 102.10
4.106 is the fusing current, and T is the welding end JIJJ interval. Agent Patent attorney Shin Kuzuno - (#1 or 1 person)
Claims (1)
消耗電極（ワイヤ）先端部が母材に一旦溶着したワイヤ
に該ワイヤ９溶断工ネルギ以上の溶断電流を供給してワ
イヤを母材から切離すと共にワイヤの先端を尖鋭化する
ことを特徴とするパルスアーク溶接終了時のワイヤ溶断
方法。 （２、特許請求の範囲（１）記載の方法において、ワイ
ヤの溶断電流は通常溶接時よりもパルスピーク値を増大
したパルス電流から成ることを特徴とするパルスアーク
溶接終了時のワイヤ溶断方法。 （３）特許請求の範囲（１）記載の方法において、ワイ
ヤの溶断電流ｄ：通通常溶接工りもパルス幅を増大した
パルス電流から成ることを特徴とするパルスアーク溶接
終了時のワイヤ溶断方法。 （４）特許請求の範囲（１）記載の方法において、ワイ
ヤの溶断電流は通常溶接時よりもパルス周波数を高くし
たパルス電流から成ることをｌ庁徴とするパルスアーク
溶接終了時のワイヤ溶断方法。[Scope of Claims] (1) At the end of welding in consumable electrode type pulsed arc welding, the tip of the consumable electrode (wire) is once welded to the base metal, and a fusing current equal to or greater than the energy of the fusing wire 9 is supplied to the wire. A wire fusing method at the end of pulse arc welding, characterized by cutting the wire from the base metal and sharpening the tip of the wire. (2. A wire fusing method at the end of pulsed arc welding, characterized in that the wire fusing current consists of a pulsed current with a pulse peak value increased compared to that during normal welding. (3) In the method according to claim (1), the wire fusing current d: a wire fusing current at the end of pulsed arc welding, characterized in that the wire fusing current d is a pulsed current with increased pulse width. (4) In the method described in claim (1), wire fusing at the end of pulsed arc welding is characterized in that the wire fusing current consists of a pulsed current with a pulse frequency higher than that during normal welding. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19432382A JPS5985372A (en) | 1982-11-05 | 1982-11-05 | Wire fusing method at end of pulse arc welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19432382A JPS5985372A (en) | 1982-11-05 | 1982-11-05 | Wire fusing method at end of pulse arc welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5985372A true JPS5985372A (en) | 1984-05-17 |
Family
ID=16322675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19432382A Pending JPS5985372A (en) | 1982-11-05 | 1982-11-05 | Wire fusing method at end of pulse arc welding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5985372A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016159316A (en) * | 2015-02-27 | 2016-09-05 | 株式会社神戸製鋼所 | Arc welding method, arc welding device and control device for arc welding |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5717381A (en) * | 1980-07-02 | 1982-01-29 | Nissan Motor Co Ltd | Arc welding method |
-
1982
- 1982-11-05 JP JP19432382A patent/JPS5985372A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5717381A (en) * | 1980-07-02 | 1982-01-29 | Nissan Motor Co Ltd | Arc welding method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016159316A (en) * | 2015-02-27 | 2016-09-05 | 株式会社神戸製鋼所 | Arc welding method, arc welding device and control device for arc welding |
| KR20160105319A (en) * | 2015-02-27 | 2016-09-06 | 가부시키가이샤 고베 세이코쇼 | Arc welding method, arc welding apparatus, and arc welding controller |
| CN105921860A (en) * | 2015-02-27 | 2016-09-07 | 株式会社神户制钢所 | Arc Welding Method, Arc Welding Apparatus, And Arc Welding Controller |
| EP3067146A1 (en) * | 2015-02-27 | 2016-09-14 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Arc welding method, arc welding apparatus, and arc welding controller |
| US9962786B2 (en) | 2015-02-27 | 2018-05-08 | Kobe Steel, Ltd. | Arc welding method, arc welding apparatus, and arc welding controller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4551603A (en) | Device and method for surfacing a workpiece | |
| US1512787A (en) | Means and method for effecting continuous electric-arc welds | |
| CA1254955A (en) | Cored tubular electrode and method for the electric- arc cutting of metals | |
| US2776361A (en) | Sigma spot or tack welding | |
| CN101844263A (en) | The striking control method that double-electrode arc welding connects | |
| JPH04313474A (en) | Method of forming electrode lead wire collection body | |
| JPS5985372A (en) | Wire fusing method at end of pulse arc welding | |
| JPH0362508B2 (en) | ||
| JPS5978779A (en) | Welding method for preventing melt-down in end part of welding in tig welding | |
| JPS6352995B2 (en) | ||
| US2719900A (en) | High speed-sheet metal inert-gas shielded arc-welding | |
| JPS5820373A (en) | Method and device for narrow groove welding | |
| JPS58212872A (en) | Arc welding method | |
| JPS5868474A (en) | Power source for pulse arc welding | |
| JPS564381A (en) | Two electrode submerged arc welding method | |
| EP0778106B1 (en) | Repairing method with welding and build-up welding apparatus for metal member | |
| Schuh et al. | Welding can pay for itself | |
| JP2004202521A (en) | Welding method and welding equipment | |
| JP3221069B2 (en) | How to restart welding | |
| JPS60118386A (en) | Submerged arc welding method | |
| JPH0381071A (en) | Nonconsumable electrode arc welding method for aluminum alloy | |
| JP2003181647A (en) | Welding torch and welding device, and welding method using the torch | |
| JPS583778A (en) | Arc welding method | |
| JPH01235312A (en) | Welding of lead wire of resistor | |
| JPS632563A (en) | Cutting method for high radiative solid refuse |