JP2647516B2 - Consumable electrode type gas shielded arc welding method - Google Patents
Consumable electrode type gas shielded arc welding methodInfo
- Publication number
- JP2647516B2 JP2647516B2 JP1289149A JP28914989A JP2647516B2 JP 2647516 B2 JP2647516 B2 JP 2647516B2 JP 1289149 A JP1289149 A JP 1289149A JP 28914989 A JP28914989 A JP 28914989A JP 2647516 B2 JP2647516 B2 JP 2647516B2
- Authority
- JP
- Japan
- Prior art keywords
- welding
- arc welding
- consumable electrode
- electrode type
- type gas
- 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.)
- Expired - Lifetime
Links
Landscapes
- Arc Welding In General (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は消耗電極式ガスシールドアーク溶接方法に関
する。The present invention relates to a consumable electrode type gas shielded arc welding method.
従来のMIG溶接,MAG溶接等、溶接電源によって通電さ
れた溶接ワイヤをシールドガス雰囲気中へ連続的に送給
し、溶接ワイヤ先端と母材との間にアークを発生させて
溶接を行う消耗電極式ガスシールドアーク溶接において
は、溶接ワイヤ先端又は溶融池から小粒の溶滴が飛散す
るスパッター現象があり、このスパッターの発生原因と
しては、溶金中の気泡の放出，ガスの爆発，アーク力に
よる飛散，アーク再生時の衝撃電流によるものなどが考
えられている。A consumable electrode that continuously welds a welding wire energized by a welding power source, such as conventional MIG welding and MAG welding, into a shielding gas atmosphere and generates an arc between the welding wire tip and the base metal to perform welding In gas shielded arc welding, there is a spatter phenomenon in which small droplets are scattered from the welding wire tip or molten pool. The causes of this spatter are discharge of bubbles in molten metal, explosion of gas, and arc force. Scattering and impact currents during arc regeneration have been considered.
しかしてこのスパッター現象が著しいときは溶接ワイ
ヤの溶融量の10〜15％にも達する溶着損失が起こること
があり、そのような状態は単に溶着損失のみならず、作
業にも支承を来たすとともに溶接欠陥の発生原因となる
場合もあり、近年溶接電源にパルス電流の重畳，フラッ
クス入り溶接ワイヤの採用などで対策を行っているが十
分でない。However, when this spattering phenomenon is remarkable, welding loss that reaches as much as 10 to 15% of the melting amount of the welding wire may occur, and such a condition not only results in welding loss, but also supports the work and causes welding. In some cases, this may cause defects, and in recent years, countermeasures have been taken by superimposing a pulse current on a welding power source, adopting a flux-cored welding wire, etc., but this is not sufficient.
本発明は、このような事情に鑑みて提案されたもの
で、溶滴を微細化してスパッターを減少又は皆無にし、
溶着損失を低減するとともに、溶接ビードを良好にして
作業性良く欠陥のない溶接部を得ることができる消耗電
極式ガスシールドアーク溶接方法を提供することを目的
とする。The present invention has been proposed in view of such circumstances, to reduce or eliminate spatter by miniaturizing droplets,
It is an object of the present invention to provide a consumable electrode type gas shielded arc welding method capable of reducing welding loss, improving a weld bead, and obtaining a welded part with good workability and no defect.
そのために本発明は、シールドガス雰囲気中へ溶接ワ
イヤを連続的に送給しながら同溶接ワイヤと母材とに給
電してアーク溶接するにあたり、溶接電流に超音波電流
（数KHz〜数10KHz）を重畳させることを特徴とする。Therefore, according to the present invention, when a welding wire is continuously fed into a shielding gas atmosphere and an electric current is supplied to the welding wire and a base material to perform arc welding, an ultrasonic current (several KHz to several tens KHz) is used as a welding current. Are superimposed.
本発明消耗電極式ガスシールドアーク溶接方法におい
ては、シールドガス雰囲気中へ連続的に供給される溶接
ワイヤ先端から発生する溶接アークから超音波が発生
し、溶接ワイヤ先端のアーク熱で溶融した溶融金属がそ
の超音波により加振され、微細な溶滴となって母材に移
行し、スパッターの少ない良好な溶接となる。In the consumable electrode type gas shielded arc welding method of the present invention, a molten metal generated by an ultrasonic wave from a welding arc generated from a welding wire tip continuously supplied into a shielding gas atmosphere and melted by arc heat at the welding wire tip. Is vibrated by the ultrasonic waves to form fine droplets and transfer to the base material, resulting in good welding with little spatter.
本発明消耗電極式ガスシールドアーク溶接方法の一実
施例を第１図模式図について説明する。One embodiment of the consumable electrode type gas shielded arc welding method of the present invention will be described with reference to FIG.
第１図において、母材１の表面に対向しガスシールド
アーク溶接するMIG溶接又はMAG溶液の溶接トーチ２に
は、その内部にチップ３が収容され溶接ワイヤ４が通っ
てトーチ先端から突き出ており、この溶接ワイヤ４はワ
イヤリール５からワイヤ送給モーター６駆動のワイヤ送
給ローラー７により連続して送給される。In FIG. 1, a welding torch 2 of MIG welding or MAG solution for gas shield arc welding facing a surface of a base material 1 has a tip 3 housed therein, and a welding wire 4 passes through and protrudes from the tip of the torch. The welding wire 4 is continuously fed from a wire reel 5 by a wire feeding roller 7 driven by a wire feeding motor 6.
また溶接トーチ２にはシールドガスボンベ８からAr,C
O2ガス等のシールドガス９が供給されトーチ先端から放
出される。更に溶接電源10の給電線がチップ３と母材１
にそれぞれ接続されて溶接ワイヤ４先端と母材１との間
に溶接アーク11が発生されるとともに、超音波電流発生
装置12が溶接電源10に接続されている。The welding torch 2 has Ar, C
A shielding gas 9 such as O 2 gas is supplied and released from the tip of the torch. Further, the power supply line of the welding power source 10 is composed of the chip 3 and the base material 1.
, A welding arc 11 is generated between the tip of the welding wire 4 and the base material 1, and an ultrasonic current generator 12 is connected to a welding power source 10.
このような装置構成において、超音波電流発生装置12
で発生した超音波電流を溶接電源10に入れ、溶接電流に
超音波電流を重畳させて流し、溶接ワイヤ４と母材１と
の間に溶接アーク11を発生させる。すると溶接アーク11
は超音波電流の強弱及び周波数に従って振動し、超音波
が発生する。In such a device configuration, the ultrasonic current generator 12
The ultrasonic current generated in step (1) is supplied to the welding power source 10, and the ultrasonic current is superimposed on the welding current and caused to flow, so that a welding arc 11 is generated between the welding wire 4 and the base material 1. Then welding arc 11
Vibrates according to the strength and frequency of the ultrasonic current to generate ultrasonic waves.
これにより溶接ワイヤ４の先端のアーク熱により溶融
した溶滴に直接超音波が供給され、溶滴は加振され、小
さな粒子となって溶接ワイヤ４の先端から離散し、母材
１に達する。As a result, ultrasonic waves are directly supplied to the droplet melted by the arc heat at the tip of the welding wire 4, and the droplet is vibrated to be dispersed as small particles from the tip of the welding wire 4 to reach the base material 1.
従って、溶接ワイヤ４の先端の溶滴は、常に小さく安
定して溶接ワイヤ４から離散して行き、スパッターが殆
んど発生しないか又は極めて少ない溶接が施され、ひい
ては溶着損失が少なく、かつ良好な溶接ビードで欠陥の
少ない溶接部が形成される。Therefore, the droplet at the tip of the welding wire 4 is always small and stably dispersed from the welding wire 4, and almost no or very little spatter is generated, so that welding loss is small and good. A weld with few defects is formed by a proper weld bead.
要するに本発明によれば、シールドガス雰囲気中へ溶
接ワイヤを連続的に送給しながら同溶接ワイヤと母材と
に給電してアーク溶接するにあたり、溶接電流に超音波
電流（数KHz〜数10KHz）を重畳させることにより、溶滴
を微細化してスパッターを減少又は皆無にし、溶着損失
を低減するとともに、溶接ビードを良好にして作業性良
く欠陥のない溶接部を得ることができる消耗電極式ガス
シールドアーク溶接方法を得るから、本発明は産業上極
めて有益なものである。In short, according to the present invention, when the welding wire is supplied to the base metal and the welding wire is continuously fed into the shielding gas atmosphere and the arc welding is performed, the welding current is caused by the ultrasonic current (several KHz to several tens KHz). Consumable electrode type gas that makes the droplets finer and reduces or eliminates spatter by reducing superposition, reduces welding loss, and improves the weld bead to obtain a welded part with good workability and no defects. The present invention is extremely useful industrially because of obtaining a shielded arc welding method.
第１図は本発明消耗電極式ガスシールドアーク溶接方法
の一実施例を示す模式図である。 １……母材、２……溶接トーチ、３……チップ、４……
溶接ワイヤ、５……ワイヤリール、６……ワイヤ送給モ
ーター、７……ワイヤ送給ローラー、８……シールドガ
スボンベ、９……シールドガス、10……溶接電源、11…
…溶接アーク、12……超音波電流発生装置。FIG. 1 is a schematic view showing one embodiment of the consumable electrode type gas shielded arc welding method of the present invention. 1 ... base material, 2 ... welding torch, 3 ... tip, 4 ...
Welding wire, 5 wire reel, 6 wire feeding motor, 7 wire feeding roller, 8 shielding gas cylinder, 9 shielding gas, 10 welding power source, 11
... welding arc, 12 ... ultrasonic current generator.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 大場 真助 長崎県長崎市飽の浦町１番１号 三菱重 工業株式会社長崎研究所内 (56)参考文献 特開 昭48−24941（ＪＰ，Ａ) 特開 昭62−114772（ＪＰ，Ａ) 特開 昭63−157767（ＪＰ，Ａ) 実開 平１−114176（ＪＰ，Ｕ) ────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Shinsuke Oba 1-1, Akunouramachi, Nagasaki City, Nagasaki Prefecture Mitsubishi Heavy Industries, Ltd. Nagasaki Research Laboratory (56) References JP-A-48-24941 (JP, A) JP-A-62-114772 (JP, A) JP-A-63-157767 (JP, A) JP-A-1-114176 (JP, U)
Claims (1)
的に送給しながら同溶接ワイヤと母材とに給電してアー
ク溶接するにあたり、溶接電流に超音波電流（数ＫHz〜
数10KHz）を重畳させることを特徴とする消耗電極式ガ
スシールドアーク溶接方法。1. An arc welding method in which a welding wire is fed into a shielding gas atmosphere while continuously feeding a welding wire and a base material to perform arc welding.
Consumable electrode type gas shielded arc welding method characterized by superimposing several tens of KHz).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1289149A JP2647516B2 (en) | 1989-11-07 | 1989-11-07 | Consumable electrode type gas shielded arc welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1289149A JP2647516B2 (en) | 1989-11-07 | 1989-11-07 | Consumable electrode type gas shielded arc welding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03151168A JPH03151168A (en) | 1991-06-27 |
| JP2647516B2 true JP2647516B2 (en) | 1997-08-27 |
Family
ID=17739396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1289149A Expired - Lifetime JP2647516B2 (en) | 1989-11-07 | 1989-11-07 | Consumable electrode type gas shielded arc welding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2647516B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200510059A (en) | 2003-04-23 | 2005-03-16 | Asahi Medical Co | Body fluid treating device of hollow fiber membrane type |
| CN101947696A (en) * | 2010-09-26 | 2011-01-19 | 哈尔滨工业大学 | Welding device for compounding ultrasonic focusing sound field with molten pole arc welding |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62114772A (en) * | 1985-11-12 | 1987-05-26 | Mitsubishi Heavy Ind Ltd | Mig welding method |
| JPS63157767A (en) * | 1986-12-19 | 1988-06-30 | Mitsubishi Heavy Ind Ltd | Excitation welding method |
| JPH01114176U (en) * | 1988-01-25 | 1989-08-01 |
-
1989
- 1989-11-07 JP JP1289149A patent/JP2647516B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03151168A (en) | 1991-06-27 |
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