JPS6149779A - Horizontal welding method - Google Patents
Horizontal welding methodInfo
- Publication number
- JPS6149779A JPS6149779A JP17298184A JP17298184A JPS6149779A JP S6149779 A JPS6149779 A JP S6149779A JP 17298184 A JP17298184 A JP 17298184A JP 17298184 A JP17298184 A JP 17298184A JP S6149779 A JPS6149779 A JP S6149779A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- groove
- horizontal
- welding method
- wire
- 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
- B23K9/02—Seam welding; Backing means; Inserts
- B23K9/0206—Seam welding; Backing means; Inserts of horizontal seams in assembling vertical plates, a welding unit being adapted to travel along the upper horizontal edge of the plates
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、横向きの狭開先を溶接する横向き溶接方法
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a horizontal welding method for welding a horizontal narrow gap.
従来のこの種槓向き溶接方法としては、たとえば第２図
および第３図に示すように、２枚の被溶接板（１） 、
（２）を突き合わせてし型またはＶ型の適当な開先角
度を有する狭開先（３）または（４）を形成し、溶接ト
ーチ内を送給される電極用ワイヤを下向きに所定のねら
い角度に保持しつつ、前記トーチをウィービングさせず
に直線的に移動させて開先（３）または（４）Ｋ溶接ビ
ード（５）を積層する方法や、第４図に示すように、２
枚の被溶接板（１） 、 （２）によシ形成された工Ｉ
Ｊの狭開先（６）に、ワイヤのねらい角度を０６．すな
わち開先（６）の開先面とワイヤとを平行にしてそれぞ
れｌパスで各層溶接ビード（５）を積層する方法等があ
る。なお、（７）は裏当材である。As a conventional welding method of this kind, for example, as shown in FIGS. 2 and 3, two plates (1) to be welded,
(2) are butted together to form a narrow groove (3) or (4) with an appropriate groove angle in a wedge or V shape, and the electrode wire fed through the welding torch is directed downward at a predetermined aim. A method of stacking grooves (3) or (4) K weld beads (5) by moving the torch linearly without weaving while holding the torch at an angle,
The workpiece I formed by the two plates to be welded (1) and (2)
Aim the wire at the narrow groove (6) of J at 06. That is, there is a method in which the groove surface of the groove (6) and the wire are made parallel and each layer of weld bead (5) is laminated in one pass. Note that (7) is a backing material.
ところで、前述の溶接方法によると、前者すなわち第２
図、第３図に示す開先（３） 、 （４）を溶接する場
合、開先角度が大きく、トーチのパス数も多く、しかも
ビード（５）の積層が容易であることから、従来よシ手
溶接法、サブマージアーク溶接法、ガスシールドアーク
溶接法等の方法で広く実用化されているが、板（１）
、 （２）の板厚が大きくなると、それに伴なって開先
（３） 、 （４）の断面積が１型の開先（６）の場合
に比して一段と増し、溶接量が増大するとともＫ、溶接
作業に長時間を要し、溶接能率が低下する欠点がちシ、
厚板の横向き溶接には適さない不都合がある。By the way, according to the above-mentioned welding method, the former, that is, the second
When welding the grooves (3) and (4) shown in Fig. 3, the groove angle is large, the number of torch passes is large, and it is easy to stack the beads (5), so it is difficult to weld the grooves (3) and (4) as shown in Fig. 3. Although it has been widely put into practical use by methods such as shear welding, submerged arc welding, and gas-shielded arc welding, plate (1)
, (2) increases, the cross-sectional area of grooves (3) and (4) increases further compared to the case of type 1 groove (6), and the amount of welding increases. TomoK has the disadvantage that welding work takes a long time and welding efficiency decreases.
There are disadvantages that make it unsuitable for horizontal welding of thick plates.
また、後者すなわち第４図に示す開先（６）を溶接する
場合、板（１） 、 （２）の板厚が大きくなっても前
記開先（３） 、 （４）はど開先断面積が増加しない
ため、溶融金属の量も少なくて済み、厚板の横向き溶接
に適しているが、この方法では開先幅の適正範囲が非常
に狭いため、ビード（５）に融合不良等の欠陥が入シ易
く、施工が難かしい欠点がらシ、たとえば、融合不良等
の欠陥が発生することなく開先（６）を溶接できる開先
幅の許容範囲が通常８〜１ｌｆｆｊＪという狭い範囲に
限られてしまい、実用性に欠ける不都合がある。In addition, when welding the latter groove (6) shown in FIG. Since the area does not increase, the amount of molten metal is also small, making it suitable for horizontal welding of thick plates.However, this method has a very narrow range of appropriate groove width, so there may be defects such as poor fusion in the bead (5). The disadvantage is that defects are easily introduced and construction is difficult, for example, the allowable range of groove width in which the groove (6) can be welded without causing defects such as poor fusion is usually limited to a narrow range of 8 to 1lffjJ. This has the disadvantage of being impractical.
そこで、前記の欠点を解消する方法として、たとえば、
特開昭５７−７９０７２号公報に示されているように、
下向きの狭開先溶接に使用する溶接法。Therefore, as a method to eliminate the above-mentioned drawbacks, for example,
As shown in Japanese Patent Application Laid-Open No. 57-79072,
A welding method used for downward narrow gap welding.
すなわち波形に形成した溶接ワイヤをその送ｐに応じて
振ファークを自動的に揺動する溶接法を横向きに適用し
アークを上下に揺動させる方法や、特公昭５３−１０９
８６号公報に示されているように、横向きの開先部の上
、下をねらうように電極を上下にウィービングさせると
ともに、電極のウィービングに応じて溶接電流を変化さ
せ、電極が開先部下面をねらうときに溶接電流を大にす
る方法等がちる。In other words, there is a welding method in which a welding wire formed into a corrugated shape is automatically oscillated in accordance with the feed speed of the welding wire, and the welding method is applied horizontally to oscillate the arc vertically.
As shown in Japanese Patent No. 86, the electrode is weaved up and down so as to aim above and below the sideways groove, and the welding current is changed according to the weaving of the electrode, so that the electrode weaves the lower surface of the groove. There are many ways to increase the welding current when aiming for.
しかし、前者の方法では、下向き溶接の場合はど効果は
得られず、しかも、開先のほぼ平行な開先面を傾斜して
溶接を行なう必要があシ、また、後者の方法では、電極
のウィービングの機構が複雑になるのみならず、ウィー
ビングに応じた溶接電流の制御も複雑になる問題がある
。However, in the former method, the welding effect cannot be obtained in the case of downward welding, and moreover, it is necessary to perform the welding by tilting the groove surfaces that are almost parallel to each other, and in the latter method, the electrode There is a problem that not only the weaving mechanism becomes complicated, but also the control of the welding current according to the weaving becomes complicated.
したがって、前記の欠点をすべて解消するため、従来で
は第５図に示すような溶接方法、すなわち工ｆＪの開先
（６）にそれぞれ上、下の２バスで溶接ビード（８）を
積層する方法が考えられている。Therefore, in order to eliminate all of the above-mentioned drawbacks, the conventional welding method as shown in Fig. 5 is a method in which weld beads (8) are laminated in two buses, upper and lower, on the groove (6) of the fJ, respectively. is considered.
ここで、開先（６）内に単に上、下の２パスで溶接ビー
ド（３）を積層したのでは、たとえば、第６図に示すよ
うに、開先（６）内の溶融金属（８）′が垂れるおそれ
があるため、溶接電流を周期的に高、低に交互に変化さ
せる低周波パルスＨＡＧ 溶接法（パルス周波数０．５
〜ＩＩ（ｚ）が用いられ、各層において下側のビード（
８）が上側のビード（８）に先行して形成される。Here, if the weld bead (3) is simply laminated in two passes, upper and lower, within the groove (6), for example, as shown in FIG. )' may sag, the low-frequency pulse HAG welding method (pulse frequency 0.5
~II(z) is used, and in each layer the lower bead (
8) is formed prior to the upper bead (8).
しかし、低周波パルスＭＡＧ 溶接法によシ開先（６）
を各層２パスで振９分は溶接を行なう場合、先イテする
下側の溶接ビード（８）では、第７図に示すように、開
先（６）の下面側ルート部（場に融合不良が発生するこ
とがある。ここで、第７図に示すように、下側開先面か
ら溶接トーチ（９）よシ送給されるワイヤαｑの先端の
ねらい位置までの距離を小さくすれば、ルート部（Ｒ）
の溶は込み量が多く融合不良の発生を防止できるが、前
記の距離を小さくしすぎると、ワイヤＱＯと下側開先面
との間でアークが発生し、アークが不安定となって良好
なビードが得られず、距離を大きくしすぎると、開先ル
ート部（Ｒ）ｔでアークが届かず、融合不良等を発生す
る結果となる。However, the low-frequency pulse MAG welding method does not allow grooves (6).
When welding is performed for 9 minutes with 2 passes on each layer, the lower weld bead (8) to be welded first will have poor fusion at the lower root of the groove (6), as shown in Figure 7. Here, as shown in Fig. 7, if the distance from the lower groove surface to the target position of the tip of the wire αq fed by the welding torch (9) is reduced, Root part (R)
The amount of weld penetration is large and it is possible to prevent poor fusion, but if the above distance is made too small, an arc will occur between the wire QO and the lower groove surface, making the arc unstable and causing poor fusion. If a suitable bead cannot be obtained and the distance is too large, the arc will not reach the groove root (R)t, resulting in poor fusion and the like.
また、この下側の溶接ビード（８）では、その適正溶接
条件範囲が非常に狭いため、開先幅、すなわち開先ギャ
ップが変動した場合にそのギャップ量に応じて溶着量の
調整を行なうことができない問題がある。In addition, the range of appropriate welding conditions for this lower weld bead (8) is very narrow, so if the groove width, that is, the groove gap changes, the amount of welding must be adjusted according to the gap amount. I have a problem where I can't.
さらに、後行の上側の溶接ビード（８）では、開先（６
）の上面側ル−ト部（Ｒ）′への溶は込み不良が発生す
ることがあシ、この場合も、ワイヤ先端のねらい位置と
下側開先面との距離が小さすぎるとアーク不安定となυ
、また、距離が大きすぎるとルート部（凡どの溶は込み
確保が難かしく、ビード形状も垂れ気味の不良ビードと
なる問題がある。Furthermore, in the upper weld bead (8) in the trailing row, the groove (6
) Failure to penetrate into the upper root part (R)' may occur. In this case, too, if the distance between the target position of the wire tip and the lower groove surface is too small, arc failure may occur. stable υ
Furthermore, if the distance is too large, it will be difficult to ensure proper welding in the root part (ordinary welding), and there will be a problem that the bead shape will become a poor bead with a tendency to sag.
したがって、この発明は、前記の点に留意し、横向きの
この種狭開先の溶接において、開先の開先ギャップの適
正範囲を広くし、欠陥発生を防止して良好な横向き溶接
を得ることを目的とする。Therefore, with the above-mentioned points in mind, it is an object of the present invention to widen the appropriate range of the groove gap of the groove in horizontal narrow groove welding of this type, prevent the occurrence of defects, and obtain good horizontal welding. With the goal.
この発明は、溶接電流を周期的に高、低に交互に変化さ
せるガスシールドアーク溶接法により、槓向き狭開先の
横方向への各層め溶接ビードを上。This invention uses a gas-shielded arc welding method that periodically changes the welding current between high and low levels to weld beads in each layer in the lateral direction of a narrow gap.
下の２パスで形成する横向き溶接方法において、下層ビ
ードを形成する先行電極のワイヤ先端のねらい位置を前
記開先の下側開先面から１〜３ ｙｒｒｍとし、上層ビ
ードを形成する後行電極のワイヤ先端のねらい位置を前
記開先の上側開先面から２〜４ｍｍとすることを特徴と
する横向き溶接方法である。In the horizontal welding method in which the lower bead is formed in two passes, the wire tip of the leading electrode that forms the lower bead is aimed at 1 to 3 yrrm from the lower groove surface of the groove, and the trailing electrode that forms the upper bead is This horizontal welding method is characterized in that the aimed position of the wire tip is 2 to 4 mm from the upper groove surface of the groove.
したがって、先行電極のワイヤ先端のねらい位置を開先
の下側開先面から１〜３ ｍｍに設定することにより、
開先下面側ｚＬｚ−ト部における融合不良の発生が防止
されるとともに、後行電極のワイヤ先端のねらい位置を
開先の上側開先面から２〜４ｍｍに設定することにより
、開先上面側ル−ト部における溶は込みが確保され、ビ
ード形状も良好になることが実験により確められている
。Therefore, by setting the aiming position of the wire tip of the leading electrode at 1 to 3 mm from the lower groove surface of the groove,
In addition to preventing the occurrence of poor fusion on the lower surface side of the groove, by setting the aiming position of the wire tip of the trailing electrode at 2 to 4 mm from the upper groove surface of the groove, the upper surface side of the groove can be It has been confirmed through experiments that the melt penetration in the root portion is ensured and the bead shape is also improved.
つぎに、この発明の１実施例を第７図とともに説明する
。Next, one embodiment of the present invention will be described with reference to FIG.
突き合わせ溶接される被溶接板（１） 、 （２Ｊの１
型の横向き狭開先（６）を、溶接電流を周期的に高、低
に交互に変化させる周波数０．５〜Ｉ Ｈｚの低周波パ
ルスＭＡＧ 溶接法により、狭開先（６）の横方向への
各層の溶接ビードを上、下の２パスで形成して溶接する
場合において、先行の下層溶接ビード（８ａ）を形成ス
る溶接トーチ（９ａ）のワイヤ（ＩＯａ）の先端のねら
い位置、すなわち開先（６）の下側開先面からの距離Ｄ
ａについて実験した結果、ワイヤ（１０ａ）の下向きの
ねらい角度θが０°すなわちワイヤ（１０ａ）と開先（
６）の開先面とが平行であるときには、距＠Ｄａをどの
ように変えても融合不良が発生し、角度θを５°以上に
し、かつ距離Ｄａを１〜３間の範囲とすれば、融合不良
が発生することなく良好な溶接ビードが形成され、さら
に、角度θが１０’以下の場合には、距離Ｄａが小さす
ぎるとアークが不安定になり、角度θに関係なく距離Ｄ
ａが３ｍｍを越えるとアークが開先ル−ト部に届かず、
融合不良が発生する。Plate to be butt welded (1), (1 of 2J
The horizontal narrow groove (6) of the mold is cut in the horizontal direction of the narrow groove (6) by a low frequency pulse MAG welding method with a frequency of 0.5 to I Hz, which periodically changes the welding current alternately between high and low. In the case of welding by forming weld beads of each layer in two passes, upper and lower, the aim position of the tip of the wire (IOa) of the welding torch (9a) that forms the preceding lower layer weld bead (8a), In other words, the distance D from the lower groove surface of the groove (6)
As a result of the experiment for a, the downward aiming angle θ of the wire (10a) was 0°, that is, the wire (10a) and the groove (
When the groove surface of 6) is parallel, poor fusion will occur no matter how you change the distance @Da. , a good weld bead is formed without fusion failure, and furthermore, if the angle θ is less than 10', the arc becomes unstable if the distance Da is too small, and the distance D
If a exceeds 3mm, the arc will not reach the groove root,
Poor fusion occurs.
また、後行の上層溶接ビード（８ｂ）を形成する溶接ト
ーチ（９ｂ）のワイヤ（ＩＯｂ）の先端のねらい位置。Also, the aim position of the tip of the wire (IOb) of the welding torch (9b) that forms the trailing upper layer weld bead (8b).
すなわち開先（６）の上側開先面からの距［Ｄｂについ
て実験した結果、距離Ｄｂを２〜４羽に調整すれば開先
上面側ル−ト部の溶は込みは確保され、ビード形状も良
好とな）、距離Ｄｂが２麿以下ではアークが開先底部で
はなく開先上面側に発生し、アーク不安定になシ、また
、距離Ｄｂが４ｍｍを越えると開先上面側ルート部の溶
は込みの確保が難かしく、ビード形状も垂れ気味の不良
ビードとなる。In other words, as a result of experiments on the distance [Db] from the upper groove surface of the groove (6), if the distance Db is adjusted to 2 to 4 blades, weld penetration at the root portion on the upper surface side of the groove is ensured, and the bead shape If the distance Db is less than 2mm, the arc will occur on the top side of the groove instead of the bottom of the groove, making the arc unstable.If the distance Db exceeds 4mm, the arc will occur on the top side of the groove. It is difficult to secure the welding depth, and the bead shape becomes a poor bead with a tendency to sag.
ところで、下側溶接ビード（８ａ）の適正溶接条件範囲
は非常に狭く、開先ギャップが変動した場合にギャップ
量に応じて溶着量の調整を行なうことはできないが、上
側溶接ビード（８ｂ）の溶接条件の調整範囲は広く、開
先ギャップの変化に対応した溶着量の調整も可能である
ことが実験によシ確められた。By the way, the range of appropriate welding conditions for the lower weld bead (8a) is very narrow, and it is not possible to adjust the amount of welding according to the gap amount when the groove gap changes. Experiments have confirmed that the welding conditions can be adjusted over a wide range, and that it is also possible to adjust the amount of welding in response to changes in the groove gap.
したがって、以上の結果から、低周波パルスＭＡＧ溶接
法を用いて狭開先（６）の横方向の各層を上下２パスで
振９分は溶接を行なう場合、先行の下側のワイヤ（ＩＯ
ａ）のねらい位置をＤａ＝１〜３ｍｍ、後行の上側のワ
イヤ（１０ｂ）のねらい位置をＤｂ＝２〜４ ＫＭに調
整することにより、良好な溶接結果が得られ、また、開
先ギャップが変動した場合でも、両ワイヤ（１０ａ）、
（１０ｂ）のねらい位置を前述の一定位置に調整し、後
行の溶接トーチ（９ｂ）の溶接条件、すなわち平均溶接
電流値を調整することによシ良好な溶接が可能である。Therefore, from the above results, when welding each layer in the horizontal direction of the narrow gap (6) in two passes up and down for 9 minutes using the low-frequency pulse MAG welding method, the lower wire (IO
Good welding results can be obtained by adjusting the aiming position of a) to Da = 1 to 3 mm and the aiming position of the trailing upper wire (10b) to Db = 2 to 4 KM. Even if fluctuates, both wires (10a),
Good welding is possible by adjusting the target position of (10b) to the above-mentioned constant position and adjusting the welding conditions of the following welding torch (9b), that is, the average welding current value.
ここで、この種横向き狭開先溶接において、良好な溶接
を得た場合の実験結果の一例を示す。なお、先行の溶接
トーチ（９ａ）と後行の溶接トーチ（９ｂ）との溶接速
度はタンデム溶接を考えて同じにしている。Here, we will show an example of experimental results when good welding was obtained in this type of horizontal narrow gap welding. Note that the welding speeds of the preceding welding torch (9a) and the following welding torch (9b) are set to be the same considering tandem welding.
■ 狭開先（６）の開先ギャップ ９〜１７ｍ、ｍ■
ワイヤ（１０ａ） 、（１０ｂ）の径 １．２ ｍｍ■
先行の下層溶接ビード（８ａ）を形成する溶接トーチ
（９ａ）の溶接条件
（１）高電流条件 ８５０Ａ 、 ３２Ｖ 、 ０．５
秒（ｉ＋）低７１ｍ流条件 １００Ａ 、 １８Ｖ 、
０．７秒（ｉｉｉ ）溶接速度 ２００ガ１λ（Ｉ
Ｖ）ワイヤ（ｌｏａ）のねらい位置 Ｄａ ＝ ３ ｍ
ｙｓ（Ｄ ワイヤ（１０ａ）のねらい１角鷹 θ−１
０゜■ 後行の上層溶接ビード（８ｂ）を形成する溶接
トーチ（９ｂ）の溶接条件
（ｉ）ｉｔ流条件 ３５０Ａ 、 ３２Ｖ 、 ０．５
〜０．７秒（１１） 低を流条件 １００Ａ 、 １
８Ｖ 、 ０．７〜１゜０秒（ｉｉｌ ）溶接速度
２０ ”Ｖｒｉｎ（ＩＶ）ワイヤＣｌ０ｂ）のねらい位
置 Ｄｂ＝３ｇなお、前述の横向き溶接に際して、開先
ギャップが変化した場合でも、開先（６）の上側開先面
、下側開先面の位置および開先ギャップ量を接触式の検
出器あるいは光学式の検出器で検出し、検出結果をフィ
ードバックしてワイヤのねらい位置を調整するとともに
、後行の溶接条件を予め開先ギャップ量に応じて設定さ
れた値に調整することにより、良好な溶接を得ることが
でき、横向き溶接の自動化が容易になるものである。■ Narrow groove (6) groove gap 9 to 17 m, m ■
Diameter of wires (10a) and (10b): 1.2 mm
Welding conditions for the welding torch (9a) forming the preceding lower layer weld bead (8a) (1) High current condition 850A, 32V, 0.5
seconds (i+) low 71m flow conditions 100A, 18V,
0.7 seconds (iii) Welding speed 200g 1λ (I
V) Aim position of wire (loa) Da = 3 m
ys (D Aim of wire (10a) 1-horned hawk θ-1
0゜■ Welding conditions for the welding torch (9b) forming the trailing upper layer weld bead (8b) (i) IT flow conditions 350A, 32V, 0.5
~0.7 seconds (11) Low flow condition 100A, 1
8V, 0.7~1゜0 seconds (IIL) welding speed
20 "Aim position of Vrin (IV) wire Cl0b) Db = 3g Furthermore, even if the groove gap changes during the horizontal welding described above, the positions of the upper groove surface and lower groove surface of groove (6) The groove gap amount is detected using a contact detector or an optical detector, and the detection results are fed back to adjust the target position of the wire, and the subsequent welding conditions are set in advance according to the groove gap amount. By adjusting to the set value, good welding can be obtained and automation of horizontal welding becomes easy.
以上のように、この発明の横向き溶接方法によると、下
層溶接ビード（８ａ）を形成する先行溶接トーチ（９ａ
）のワイヤ（ｉｏａ）先端のねらい位置を開先（６）の
下側開先面から１〜３羽とし、上層溶接ビード（８ｂ）
を形成する後行溶接トーチ（９ｂ）のワイヤ（］Ｏｂ）
先端のねらい位置を開先（６ンの上側開先面から２〜４
１ＬＩＭとすることにょシ、融合不良や溶は込み不良が
なく、良好な溶接結果を得ることができ、さらに、狭開
先（６）の開先ギャップの変化に伴なう溶接条件の調整
を、後行溶接トーチ（９ｂ）の平均溶接電流値の調整の
みで行なうことにょシ、開先ギャップか変化した場合で
も常に良好な溶接か行なえるものである。As described above, according to the horizontal welding method of the present invention, the preceding welding torch (9a) forms the lower weld bead (8a).
) The aim position of the tip of the wire (ioa) is 1 to 3 blades from the lower groove surface of the groove (6), and the upper layer weld bead (8b)
The wire (]Ob) of the trailing welding torch (9b) forming
Bevel at the target position of the tip (2 to 4 points from the upper bevel surface of 6 inches)
By using 1LIM, it is possible to obtain good welding results without poor fusion or poor penetration, and it is also possible to adjust the welding conditions due to changes in the groove gap of the narrow groove (6). By simply adjusting the average welding current value of the trailing welding torch (9b), good welding can always be performed even if the groove gap changes.
図面はそれぞれ横向き溶接方法にょシ溶接された狭開先
近辺の断面図であシ、第１図はこの発明の１実施例、Ｍ
２図ないしＭ７図はそれぞれ従来例である。
（６）−＃開先、（Ｅ！Ａ）、（８ｂ）−ｉｉｇ接ヒー
ト、（９ａ）、（９ｂ） ’・・・溶接トーチ、（＋ｏ
ａ）、（ｘｏｂ）・・・ワイヤ。 。Each of the drawings is a sectional view of the vicinity of a narrow gap welded using the horizontal welding method, and FIG. 1 is an embodiment of the present invention.
Figures 2 to M7 are conventional examples. (6)-# groove, (E!A), (8b)-iig contact heat, (9a), (9b) '... welding torch, (+o
a), (xob)...wire. .
Claims (2)
スシールドアーク溶接法により、横向き狭開先の横方向
への各層の溶接ビードを上、下の２パスで形成する横向
き溶接方法において、下層ビードを形成する先行電極の
ワイヤ先端のねらい位置を前記開先の下側開先面から１
〜３ｍｍとし、上層ビードを形成する後行電極のワイヤ
先端のねらい位置を前記開先の上側開先面から２〜４ｍ
ｍとすることを特徴とする横向き溶接方法。(1) A horizontal welding method in which a weld bead is formed in each layer in the horizontal direction of a narrow horizontal gap in two passes, upper and lower, using a gas-shielded arc welding method in which the welding current is changed periodically between high and low levels. In this step, the aim position of the wire tip of the preceding electrode that forms the lower layer bead is set at one point from the lower groove surface of the groove.
~3 mm, and the aim position of the wire tip of the trailing electrode that forms the upper layer bead is 2 to 4 m from the upper groove surface of the groove.
A horizontal welding method characterized by m.
、後行電極の平均溶接電流値の調整のみで行なうことを
特徴とする特許請求の範囲第１項に記載の横向き溶接方
法。(2) Adjustment of the welding conditions in accordance with changes in the groove width of the narrow groove is performed only by adjusting the average welding current value of the trailing electrode. Horizontal welding method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17298184A JPS6149779A (en) | 1984-08-20 | 1984-08-20 | Horizontal welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17298184A JPS6149779A (en) | 1984-08-20 | 1984-08-20 | Horizontal welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6149779A true JPS6149779A (en) | 1986-03-11 |
Family
ID=15951952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17298184A Pending JPS6149779A (en) | 1984-08-20 | 1984-08-20 | Horizontal welding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6149779A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014088110A1 (en) * | 2012-12-04 | 2014-06-12 | Ｊｆｅスチール株式会社 | Method for narrow-gap, gas-shielded arc welding |
| WO2014088111A1 (en) * | 2012-12-04 | 2014-06-12 | Ｊｆｅスチール株式会社 | Narrow-gap, gas-shielded arc welded joint |
| JP2015223605A (en) * | 2014-05-27 | 2015-12-14 | Ｊｆｅスチール株式会社 | Narrow groove gas-shield arc-welding method |
-
1984
- 1984-08-20 JP JP17298184A patent/JPS6149779A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014088110A1 (en) * | 2012-12-04 | 2014-06-12 | Ｊｆｅスチール株式会社 | Method for narrow-gap, gas-shielded arc welding |
| WO2014088111A1 (en) * | 2012-12-04 | 2014-06-12 | Ｊｆｅスチール株式会社 | Narrow-gap, gas-shielded arc welded joint |
| JP2015223605A (en) * | 2014-05-27 | 2015-12-14 | Ｊｆｅスチール株式会社 | Narrow groove gas-shield arc-welding method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9457420B2 (en) | Gas tungsten arc welding with cross AC arcing twin wires | |
| US4546230A (en) | Welding process using laser beam | |
| US20110198317A1 (en) | Hybrid welding with multiple heat sources | |
| KR101991608B1 (en) | Horizontal fillet welding method, horizontal fillet welding system and program | |
| JP6216111B2 (en) | Welding system, welding process and welded article | |
| US6407364B1 (en) | Method and system for welding railroad rails | |
| US20180272454A1 (en) | Method and system of using a consumable and a heat source with a weld puddle | |
| CN111168241B (en) | Method for double-beam pulse laser time-sharing induction MAG electric arc directional swinging surfacing | |
| JP2011083781A (en) | Method for manufacturing h-section steel by laser welding | |
| US5945014A (en) | Method of arc welding heavy steel plates | |
| JPS6149779A (en) | Horizontal welding method | |
| JP2004330299A (en) | Laser welding method excellent in weld strength | |
| CN210281087U (en) | Hybrid welding device and hybrid welding system | |
| JP6211431B2 (en) | Multi-electrode single-sided submerged arc welding method, welded product manufacturing method | |
| JPH10323791A (en) | Butt welding of hot rolling steel piece and laser welding nozzle | |
| JP2005177849A (en) | Lap fillet welded joint brazing method | |
| JP2001030091A (en) | Structure of t-shaped joint with narrow groove, its welding method, and welded structure | |
| JP7284014B2 (en) | Laser-arc hybrid welding equipment | |
| JP3867164B2 (en) | Welding method | |
| CN112548341A (en) | Laser-arc hybrid welding device | |
| KR20210061206A (en) | Electro gas welding apparatus and heat input control method thereof | |
| US20180272453A1 (en) | Method and system of using a consumable and a heat source with a weld puddle | |
| JPS60210368A (en) | Three o'clock welding method | |
| JP2008501529A (en) | Gas metal buried arc welding of lap penetration joints | |
| KR102353152B1 (en) | Welding system |