JPS61119383A - Inert gas tungsten arc welding method - Google Patents
Inert gas tungsten arc welding methodInfo
- Publication number
- JPS61119383A JPS61119383A JP24181684A JP24181684A JPS61119383A JP S61119383 A JPS61119383 A JP S61119383A JP 24181684 A JP24181684 A JP 24181684A JP 24181684 A JP24181684 A JP 24181684A JP S61119383 A JPS61119383 A JP S61119383A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- welding wire
- arc
- wire
- feeding
- 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
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
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
-
- 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
- B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
- B23K9/1093—Consumable electrode or filler wire preheat circuits
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
Description
【発明の詳細な説明】
〔Ｓ業上の利用分野〕
本発明は、イナートガスタングステンアーク（ＴＩＧ）
溶接法の改良に関する。[Detailed description of the invention] [Field of application in S industry] The present invention is directed to inert gas tungsten arc (TIG)
Concerning improvements in welding methods.
（従来の技術）
従来、ＴＩＧ溶接法としては、第４図に示す如く棒状で
先端が先細の非消耗のタングステン電極１を用いて、母
材２と前記電極１の間に溶接アーク３を発生させ母材２
を溶融させる方法が知られている。なお、図中の４はノ
ズルを、５はこのノズル４から流されるアルゴンやヘリ
ウム等のシールドガスを、６はトランスを夫々示す。前
記シールドガス５は、溶接アーク３と溶融池を大気から
保護するためのものである。(Prior Art) Conventionally, in the TIG welding method, a welding arc 3 is generated between a base material 2 and the electrode 1 using a rod-shaped non-consumable tungsten electrode 1 with a tapered tip as shown in FIG. Letting base material 2
A method of melting is known. In the figure, 4 indicates a nozzle, 5 indicates a shielding gas such as argon or helium flowing from the nozzle 4, and 6 indicates a transformer. The shielding gas 5 is for protecting the welding arc 3 and the molten pool from the atmosphere.
また、従来の他のＴＩＧ溶接法としては、第５図に示す
如くタングステン電極７の先端に円状の満８を設けて第
４図と同様に溶接する方法が知られている。Further, as another conventional TIG welding method, a method is known in which, as shown in FIG. 5, a circular 8 is provided at the tip of a tungsten electrode 7 and welding is performed in the same manner as shown in FIG.
しかしながら、従来のＴＩＧ溶接法によれば次に示す問
題点を有する。However, the conventional TIG welding method has the following problems.
■、溶接アークはタングステン電極１（又は７）の先端
形状によって一定に広がるが、その広がりを制御できず
、溶接品質が低下する。(2) Although the welding arc spreads uniformly depending on the shape of the tip of the tungsten electrode 1 (or 7), the spread cannot be controlled and the welding quality deteriorates.
■、従来のＴＩＧ溶接法においては、溶接ワイヤの添加
が別方向から溶接アーク３や溶融池へ供給されるので、
溶接方向を変える場合等は溶接ヤイヤ送給ガイド等の向
きを変える必要があり、溶接作業性、溶接能率の低下を
伴う。■In the conventional TIG welding method, the welding wire is added to the welding arc 3 and molten pool from a different direction, so
When changing the welding direction, it is necessary to change the orientation of the welding tire feed guide, etc., which is accompanied by a decrease in welding workability and welding efficiency.
本発明は上記事情に鑑みてなされたもので、溶接作業性
、溶接品質及び溶接能率の向上を図ったイナートガスタ
ングステンアーク溶接法を提供することを目的とする。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an inert gas tungsten arc welding method that improves welding workability, welding quality, and welding efficiency.
本発明は、中空電極の内側から溶接ワイヤとシールドガ
スを溶接アーク中央へパルス状でかつ交互に送給すると
ともに、前記溶接ワイヤを送給途中で加熱することによ
って、前記目的の達成を図ったことを骨子とする。The present invention aims to achieve the above object by alternately feeding the welding wire and shielding gas from the inside of the hollow electrode to the center of the welding arc in a pulsed manner and heating the welding wire during feeding. That is the main point.
本発明によれば、以下の効果を有するものである。 According to the present invention, the following effects are achieved.
■。溶接ワイヤをシールドガス雰囲気中で送給するため
、溶接ワイヤの酸化を防止できる。■. Since the welding wire is fed in a shielding gas atmosphere, oxidation of the welding wire can be prevented.
■、溶接ワイヤを溶接アーク中心から供給するため、従
来の如く送給方向と溶接進行との関係を気にする必要が
なく、自動溶接化における往復溶接が可能となる。(2) Since the welding wire is fed from the center of the welding arc, there is no need to worry about the relationship between the feeding direction and the welding progress as in the past, and reciprocating welding in automatic welding becomes possible.
■、溶接アークと溶接ワイヤが同心であるため、溶接ワ
イヤの狙い位置が変わらず、良好な溶接ができる。■Since the welding arc and welding wire are concentric, the target position of the welding wire does not change, allowing for good welding.
以下、本発明の一実施例を第１図〜第３図を参照して説
明する。Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 1 to 3.
図中の１１は、シールドノズル１２に設けられたタング
ステン製の中空電極である。ここで、この中空電極１１
の代わりに同パイプの先端にタングステン製の中空電極
を取付けたものを用いてもよい。この中空電極１１の内
側には、溶接ワイヤ１３がセラミックやＦＲＰ等の耐熱
材１４を介して設けられている。前記溶接ワイヤ１３に
は、給電部１５が設けられている。この給電部１５は、
溶接ワイヤ１３を溶接トーチへ送給するまでの経路で通
電しＩ２Ｒのジュール熱で溶接ワイヤ１３を加熱するた
めのものである。前記給電部１５には、電源１６が接続
されている。前記耐熱材１４には、間欠ポンプ１７を介
在した配管１８が接続されている。ここで、配管１８は
前記中空電極１１の内側に第１のシールドガスを供給す
るためのものであり、間欠ポンプ１７によって中空電極
１１の内側から溶接アーク１９方向に吹付けるシールド
ガスはパルス状に送給される。なお、大気の吸込みを防
ぐため溶接ワイヤ１３の加熱部並びに図示しないが溶接
ワイヤのコイルやその送給モータ等全体をシールしてい
る。また、図中の２０はボンベから送給された溶接７−
りと溶融池制御用の第１のシールドガスを、２１はシー
ルドガス供給口を、２２は溶接アーク１９、母材２３表
面の溶融金属２４並びに溶接金属の酸化を防ぐための第
２のシールドガスを、２５は溶接電源を夫々示す。11 in the figure is a tungsten hollow electrode provided in the shield nozzle 12. Here, this hollow electrode 11
Instead, the same pipe with a tungsten hollow electrode attached to the tip may be used. A welding wire 13 is provided inside the hollow electrode 11 via a heat-resistant material 14 such as ceramic or FRP. The welding wire 13 is provided with a power feeding section 15 . This power supply section 15 is
This is for heating the welding wire 13 with the Joule heat of I2R by supplying electricity along the path until the welding wire 13 is fed to the welding torch. A power supply 16 is connected to the power supply section 15 . A pipe 18 with an intermittent pump 17 interposed therebetween is connected to the heat-resistant material 14 . Here, the pipe 18 is for supplying the first shielding gas to the inside of the hollow electrode 11, and the shielding gas blown from the inside of the hollow electrode 11 in the direction of the welding arc 19 by the intermittent pump 17 is pulsed. will be sent. In order to prevent atmospheric air from being sucked in, the heating portion of the welding wire 13 and the entire welding wire coil, its feeding motor, etc. (not shown) are sealed. In addition, 20 in the figure is a welding 7- fed from a cylinder.
21 is a shield gas supply port, 22 is a welding arc 19, a molten metal 24 on the surface of the base metal 23, and a second shield gas for preventing oxidation of the weld metal. and 25 indicate a welding power source, respectively.
次に本溶接法の作用を説明する。Next, the effect of this welding method will be explained.
（ア）、第１のシールドガス２０の供給有り、溶接ワイ
ヤ１３の送給無しの場合：
即ち、第２図に示す如く、中空電極１１の内側から溶接
アーク１９と溶融池制御用の第１のシールドガス２０を
送給するとともに、溶接ワイヤ１３の送給を止めると、
溶接アーク１８は第１のシールドガス２０によって広が
る。また、溶融池は中央部がシールドガス圧によって凹
み、その分、溶融池は広がる。(A) When the first shielding gas 20 is supplied and the welding wire 13 is not fed: That is, as shown in FIG. When the shielding gas 20 is supplied and the supply of the welding wire 13 is stopped,
Welding arc 18 is expanded by first shielding gas 20 . Further, the center of the molten pool is depressed by the shielding gas pressure, and the molten pool expands by that amount.
（イ）、第１のシールドガス２０の供給無し、溶接ワイ
ヤ１３の供給有りの場合：
この場合、溶接アーク１９は中空電極１１の直下に集中
し、そのアーク中央に溶接ワイヤ１３が供給され溶滴１
３′となって溶融池へ落下する（第３図図示）。(a) Case in which the first shielding gas 20 is not supplied and the welding wire 13 is supplied: In this case, the welding arc 19 is concentrated directly under the hollow electrode 11, and the welding wire 13 is supplied to the center of the arc and melts. drop 1
3' and falls into the molten pool (as shown in Figure 3).
即ち、本溶接法は前述した第２図、第３図の状態をパル
ス状でかつ交互に繰返すもので、第２図の状態で母材２
３の開先側壁を溶融させ、第３図の状態で溶接アーク１
９中心から溶接ワイヤ１３を供給して開先部を埋める。That is, this welding method alternately repeats the conditions shown in FIGS. 2 and 3 described above in a pulsed manner, and the base material 2 is
Melt the side wall of groove No. 3 and apply welding arc No. 1 in the state shown in Fig. 3.
Welding wire 13 is supplied from the center of 9 to fill the groove.
そして、溶接ワイヤ１３は送給途中で電気的に加熱した
ものを溶接アーク１９中に供給すれば、完全に溶融状態
となって溶融池に落下するので溶着速度を非常に高める
ことができる。If the welding wire 13 is electrically heated during feeding and is fed into the welding arc 19, it becomes completely molten and falls into the molten pool, so that the welding speed can be greatly increased.
しかして、本発明によれば、タングステン製の中空電極
１１の内側から溶接ワイヤ１３と第１のシールドガス２
ｏを溶接アーク１９をパルス状でかつ交互に供給すると
もに、溶溶ワイヤ１３を送給途中で電気的に加熱するた
め、次に示す効果を有する。According to the present invention, the welding wire 13 and the first shielding gas 2 are connected from inside the tungsten hollow electrode 11.
Since the welding arc 19 is alternately supplied in a pulsed manner and the melting wire 13 is electrically heated during the feeding, the following effects are achieved.
■、溶接ワイヤ１３を第１のシールドガス１９雰囲気中
で供給するため、溶接ワイヤ１３が酸化されることを回
避でき、溶接品質を向上できる。(2) Since the welding wire 13 is supplied in the atmosphere of the first shielding gas 19, oxidation of the welding wire 13 can be avoided and welding quality can be improved.
■、溶接ワイヤ１３を溶接アーク中心から供給できるた
め、従来のＴＩＧ溶接法のように溶接ワイヤの送給方向
と溶接進行方向との関係を気にする必要がなく、自動溶
接化における往復溶接が可能となり、溶接作業性、溶接
能率を向上できる。■Since the welding wire 13 can be fed from the center of the welding arc, there is no need to worry about the relationship between the welding wire feeding direction and the welding progress direction as in conventional TIG welding, and reciprocating welding in automatic welding is possible. This makes it possible to improve welding workability and welding efficiency.
同様な理由より、本溶接法を熱交換器の管と管板のシー
ル溶接等に適用すれば、溶接トーチの支持機構等を簡単
にできる。For the same reason, if this welding method is applied to seal welding between tubes and tube sheets of a heat exchanger, etc., the support mechanism of the welding torch can be simplified.
■、溶接アーク１８と溶接ワイヤ１３が同心であるため
、溶接ワイヤ１３の狙い位置が変わらず、良好な溶接が
期待できる。(2) Since the welding arc 18 and the welding wire 13 are concentric, the target position of the welding wire 13 does not change, and good welding can be expected.
なお、上記実施例では、第１のシールドガスをパルス状
に送給する手段として間欠ポンプを用いたが、これに限
らず、例えばタイマーと電磁バルブなどを利用してもよ
い。In the above embodiment, an intermittent pump is used as a means for feeding the first shielding gas in a pulsed manner, but the present invention is not limited to this, and a timer and a solenoid valve may be used, for example.
（発明の効果〕
以上詳述した如く本発明によれば、溶接作業性、溶接品
質及び溶接能率を向上しえ、原子力、原肋橢、ボイラ等
で適用可能な信頼性の高いイナートガスタングステンア
ーク溶接法を提供できる。(Effects of the Invention) As detailed above, according to the present invention, welding workability, welding quality, and welding efficiency can be improved, and highly reliable inert gas tungsten arc welding that can be applied to nuclear power, original steelwork, boilers, etc. law can be provided.
第１図は本発明の一実施例に係るＴＩＧ溶接法の説明図
、第２図は同溶接法において第１のシールドガスを送給
し溶接ワイヤを送給しない場合の説明図、第３図は同溶
接法において第１のシールドガスを送給せず溶接ワイヤ
を送給する場合の説明図、第４図及び第５図は夫々従来
のＴＩＧ溶接法の説明図である。
１１・・・タングステン製の中空電極、１２・・・シー
ルドノズル、１３・・・溶接ワイヤ、１４・・・耐熱材
、１５・・・給電部、１６・・・電源、１７・・・間欠
ポンプ、１８・・・配管、１９．２１・・・シールドガ
ス、２２・・・母材、２３・・・溶接金属。
出願人復代理人 弁理士 鈴江武彦
第４図
第５図FIG. 1 is an explanatory diagram of the TIG welding method according to an embodiment of the present invention, FIG. 2 is an explanatory diagram of the same welding method when the first shielding gas is supplied but no welding wire is supplied, and FIG. 3 is an explanatory diagram of the TIG welding method according to an embodiment of the present invention. 1 is an explanatory diagram of the welding method in which a welding wire is supplied without supplying the first shielding gas, and FIGS. 4 and 5 are explanatory diagrams of the conventional TIG welding method, respectively. DESCRIPTION OF SYMBOLS 11... Tungsten hollow electrode, 12... Shield nozzle, 13... Welding wire, 14... Heat resistant material, 15... Power supply part, 16... Power source, 17... Intermittent pump , 18... Piping, 19.21... Shielding gas, 22... Base metal, 23... Welding metal. Applicant Sub-Agent Patent Attorney Takehiko Suzue Figure 4 Figure 5
Claims (1)
ルドガスを溶接アーク中央へパルス状でかつ交互に送給
するとともに、前記溶接ワイヤを送給途中で加熱するこ
とを特徴とするイナートガスタングステンアーク溶接法
。An inert gas tungsten arc welding method, characterized in that a welding wire and shielding gas are alternately fed in a pulsed manner to the center of a welding arc from inside a hollow tungsten electrode, and the welding wire is heated during feeding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24181684A JPS61119383A (en) | 1984-11-16 | 1984-11-16 | Inert gas tungsten arc welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24181684A JPS61119383A (en) | 1984-11-16 | 1984-11-16 | Inert gas tungsten arc welding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61119383A true JPS61119383A (en) | 1986-06-06 |
| JPH0452176B2 JPH0452176B2 (en) | 1992-08-21 |
Family
ID=17079919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24181684A Granted JPS61119383A (en) | 1984-11-16 | 1984-11-16 | Inert gas tungsten arc welding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61119383A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528238A (en) * | 2012-01-18 | 2012-07-04 | 江苏中核利柏特股份有限公司 | Manual argon-arc welding process of tungsten electrode |
| CN102528237A (en) * | 2012-01-18 | 2012-07-04 | 江苏中核利柏特股份有限公司 | Welding process for carbon steel process pipeline |
| EP2829349A1 (en) * | 2013-07-26 | 2015-01-28 | Linde Aktiengesellschaft | Welding torch and welding device with hollow electrode and potential-free fed welding material, welding method and use of a process gas |
| CN104493338A (en) * | 2014-11-27 | 2015-04-08 | 芜湖中集瑞江汽车有限公司 | TIG ((tungsten inert gas) welding process of less than 3mm thick aluminum and aluminum alloys |
| CN106312270A (en) * | 2016-11-14 | 2017-01-11 | 江苏阿斯美特精工科技有限公司 | Coaxial hollow tungsten electrode TIG device and welding gun thereof, using method and application |
| US20170008116A1 (en) * | 2014-03-14 | 2017-01-12 | Linde Aktiengesellschaft | Method for tungsten inert gas welding |
| CN107160012A (en) * | 2017-05-11 | 2017-09-15 | 江苏阿斯美特精工科技有限公司 | A kind of TIG welding guns and welding method |
| CN107186322A (en) * | 2017-06-29 | 2017-09-22 | 沈阳工业大学 | Partly split the hollow tungsten electrode coaxial wire feed inert gas-shielded arc welding welding gun of formula |
| CN107414304A (en) * | 2017-09-11 | 2017-12-01 | 江苏阿斯美特精工科技有限公司 | A kind of compound TIG weldering devices of coaxial laser paraxonic heated filament and its implementation |
| WO2018036122A1 (en) * | 2016-08-24 | 2018-03-01 | 江苏阿斯美特精工科技有限公司 | Coaxial hollow tungsten electrode hot wire tig welding gun, welding device, and welding method |
| EP3338935A1 (en) * | 2016-12-22 | 2018-06-27 | MAN Truck & Bus AG | 3d printing apparatus |
| CN115815759A (en) * | 2023-02-06 | 2023-03-21 | 苏州友得利金属制品有限公司 | Hollow tungsten electrode coaxial wire feeding argon arc welding device and welding gun and welding method thereof |
-
1984
- 1984-11-16 JP JP24181684A patent/JPS61119383A/en active Granted
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528237A (en) * | 2012-01-18 | 2012-07-04 | 江苏中核利柏特股份有限公司 | Welding process for carbon steel process pipeline |
| CN102528238A (en) * | 2012-01-18 | 2012-07-04 | 江苏中核利柏特股份有限公司 | Manual argon-arc welding process of tungsten electrode |
| EP2829349A1 (en) * | 2013-07-26 | 2015-01-28 | Linde Aktiengesellschaft | Welding torch and welding device with hollow electrode and potential-free fed welding material, welding method and use of a process gas |
| US20170008116A1 (en) * | 2014-03-14 | 2017-01-12 | Linde Aktiengesellschaft | Method for tungsten inert gas welding |
| US10583512B2 (en) * | 2014-03-14 | 2020-03-10 | Linde Aktiengesellschaft | Method for tungsten inert gas welding |
| AU2015230383B2 (en) * | 2014-03-14 | 2019-09-12 | Linde Aktiengesellschaft | Gas tungsten arc welding method |
| CN104493338A (en) * | 2014-11-27 | 2015-04-08 | 芜湖中集瑞江汽车有限公司 | TIG ((tungsten inert gas) welding process of less than 3mm thick aluminum and aluminum alloys |
| WO2018036122A1 (en) * | 2016-08-24 | 2018-03-01 | 江苏阿斯美特精工科技有限公司 | Coaxial hollow tungsten electrode hot wire tig welding gun, welding device, and welding method |
| CN106312270A (en) * | 2016-11-14 | 2017-01-11 | 江苏阿斯美特精工科技有限公司 | Coaxial hollow tungsten electrode TIG device and welding gun thereof, using method and application |
| EP3338935A1 (en) * | 2016-12-22 | 2018-06-27 | MAN Truck & Bus AG | 3d printing apparatus |
| CN108296599A (en) * | 2016-12-22 | 2018-07-20 | 曼卡车和巴士股份公司 | 3D printing equipment |
| CN107160012A (en) * | 2017-05-11 | 2017-09-15 | 江苏阿斯美特精工科技有限公司 | A kind of TIG welding guns and welding method |
| CN107186322A (en) * | 2017-06-29 | 2017-09-22 | 沈阳工业大学 | Partly split the hollow tungsten electrode coaxial wire feed inert gas-shielded arc welding welding gun of formula |
| CN107186322B (en) * | 2017-06-29 | 2022-12-06 | 沈阳工业大学 | Half-split hollow tungsten electrode coaxial wire feeding inert gas shielded welding gun |
| CN107414304A (en) * | 2017-09-11 | 2017-12-01 | 江苏阿斯美特精工科技有限公司 | A kind of compound TIG weldering devices of coaxial laser paraxonic heated filament and its implementation |
| CN115815759A (en) * | 2023-02-06 | 2023-03-21 | 苏州友得利金属制品有限公司 | Hollow tungsten electrode coaxial wire feeding argon arc welding device and welding gun and welding method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0452176B2 (en) | 1992-08-21 |
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