JPS5853380A - Arc welding method - Google Patents
Arc welding methodInfo
- Publication number
- JPS5853380A JPS5853380A JP14952881A JP14952881A JPS5853380A JP S5853380 A JPS5853380 A JP S5853380A JP 14952881 A JP14952881 A JP 14952881A JP 14952881 A JP14952881 A JP 14952881A JP S5853380 A JPS5853380 A JP S5853380A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- weld
- alloy
- ring
- 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
- B23K9/23—Arc welding or cutting taking account of the properties of the materials to be welded
Abstract
Description
【発明の詳細な説明】
本発明はＡ７−ＩＪｇ−，９ｉ系アルミ合金の溶接法に
系り、特に０．５〜ｌ０ＫＨｚパルスを発生するタング
ステンイナートガスアーク溶接を行ない高能率で溶接割
れが発生しない溶接施工法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a welding method for A7-IJg-, 9i series aluminum alloys, and in particular uses tungsten inert gas arc welding that generates 0.5 to 10KHz pulses to achieve high efficiency and no weld cracking. Regarding welding construction methods.
ガス絶縁開閉装置の導体は、第１図に示す形状となって
おり、材質はＡｔ−Ｍｇ−５ｉ系あるいはＡｔ−Ｍｇ系
のアルミ合金が１吏用されている。The conductor of the gas insulated switchgear has the shape shown in FIG. 1, and is made of At-Mg-5i or At-Mg aluminum alloy.
ｈｔ−Ｍｇ−ｓｉ系の溶接は、低融点化合物が存在する
ので溶接割れ感受性が高く、通常では第２図に示す如く
液溶接物に開先４を取り、溶着金属の割れに対して抵抗
が強いＡｔ−５ｉ系合金の溶加材５を多量に入れて溶接
を行ない、溶着金属３を得ている。従って開先を大きく
取る必要があり、溶接層数も多く能率が悪い。一方、ア
ルミ合金の高能率溶接法として０．５〜１０ Ｋ ＦＩ
Ｚのパルスを発生させて溶接するイナートガスアーク
溶接（以下バイパルス溶接と言う）があり、これによれ
ば第３図の如く開先無しで深情は込み溶接が可能である
が、バイパルス溶接する場合、第４図に示す如くタング
ステン電極がアーク発生と同時に母材表面下約０．５〜
１．０ ｒｒａｎまでもぐり、そこからアークが持続し
て溶接していく現象がおこるため、溶加材を多量に入れ
るとタングステン亀雨と溶加材が接触し短絡によシアー
ク切れを起こし易く、溶加材を溶融プールに多量に入れ
ることができない。Ht-Mg-Si welding is highly susceptible to weld cracking due to the presence of low melting point compounds, and normally a groove 4 is provided in the liquid weld as shown in Figure 2 to increase resistance to cracking of the weld metal. Welding is performed by adding a large amount of filler material 5 of a strong At-5i alloy to obtain weld metal 3. Therefore, it is necessary to have a large groove, and the number of weld layers is large, resulting in poor efficiency. On the other hand, as a high-efficiency welding method for aluminum alloys, 0.5 to 10 K FI
There is inert gas arc welding (hereinafter referred to as bi-pulse welding) that generates a Z pulse to weld, and according to this, deep penetration welding is possible without a groove as shown in Figure 3, but when bi-pulse welding, As shown in Figure 4, the tungsten electrode is placed approximately 0.5~0.5~
A phenomenon occurs in which the arc reaches 1.0 rran and continues welding from there, so if a large amount of filler metal is added, the tungsten rain and the filler metal will come into contact and short circuit, causing shear arc breakage. Large amounts of filler metal cannot be added to the melt pool.
従って溶接割れ感受性の低いＡ、ｔ−Ｍｇ系の被溶接物
に対してはバイパルス溶接が可能であるが。Therefore, bi-pulse welding is possible for A, t-Mg type workpieces which have low weld cracking susceptibility.
溶接割れ感受性の旨いｈｔ−Ｍｇ−ｓｉ系の被溶接部に
対してバイパルス溶接と行なうと第５図に示す如く溶接
割れ１０が発生し溶接不可能であった。When bi-pulse welding was performed on a welded part of the HT-Mg-Si system, which is sensitive to weld cracking, welding cracks 10 occurred as shown in FIG. 5, making welding impossible.
本発明の目的はＡＡ−Ｍｇ−８ｉ系の被溶接材にバイパ
ルス溶接を適用しても溶接割れの発生しない健全な溶接
部が得られる溶接施工法を提供することにある。An object of the present invention is to provide a welding method that allows a healthy welded part without weld cracks to be obtained even when bipulse welding is applied to AA-Mg-8i-based materials to be welded.
Ａｔ−Ｍｇ−５ｉ系のバイパルス溶接で溶接割れが発生
するのは、溶融プール内にＡｔ−５ｉ系の溶加材が入ら
ないためであることから、第６図に示すよりなＡｔ−８
ｉ系のリング１１′ｆｆ：製作し。Weld cracking occurs in At-Mg-5i bi-pulse welding because the At-5i filler metal does not enter the molten pool.
i-series ring 11'ff: Manufactured.
これを第７図の如く■型開先山にインサートし。Insert this into the ■-type groove as shown in Figure 7.
第８図の如くリング１１を溶融しながら・・イパルス溶
接を行なう施工法を発明した。ここで第６図のリング１
１の板厚Ｔを変化させて溶接実験を行ない、リングの溶
融量と被溶接物の溶融量との比率と、溶接割れ長さの関
係を調べたところ第９図のようになり、リングの溶融比
率が増加すると溶接割れが少なくなり、リングの溶融比
率が２０％で溶接割れが発生しなくなることが解った。As shown in Fig. 8, we have invented a construction method in which Ipulse welding is performed while melting the ring 11. Here, ring 1 in Figure 6
Welding experiments were conducted by changing the plate thickness T of No. 1, and the relationship between the ratio of the melted amount of the ring to the melted amount of the welded object and the weld crack length was found as shown in Figure 9. It was found that as the melting ratio increases, weld cracking decreases, and when the ring melting ratio is 20%, no welding cracking occurs.
また溶融比率が３５％を起えると第１０図の如く、リン
グ１１を完全に溶かすことができず健全な溶接部が得ら
れないことがわかった。Furthermore, it was found that when the melting ratio exceeded 35%, the ring 11 could not be completely melted and a sound welded joint could not be obtained, as shown in FIG.
１、適用製品
ガス絶縁開閉装置ｄ用内部導体で被溶接・吻の材質はＡ
６０６３ＴＥ−Ｔ６、リングの祠質はＡ４０４３゜寸法
形状を第１１図に示す。1. The material of the internal conductor to be welded and the snout for the applicable product gas insulated switchgear d is A.
6063TE-T6, the abrasive quality of the ring is A4043°, and the dimensions and shape are shown in Figure 11.
２、・・イパルス溶接条件
溶接電流：３５０Ａ、アーク市川：１９Ｖ、パ／ｌ／ス
周波６ ： １．５ Ｋｌｌ Ｚ、溶接速度： Ｉ ３
０ｉ１ａ ／’ｌ１１ｍ 、 シー ルドガス： ｌｉ
ｅ ２５１ ／ｈｒｉｎ３、溶接結果
本実施例によれば第１２図に示すように溶接割れのない
良好な溶接ビードが得られた。2. I-Pulse welding conditions Welding current: 350A, Arc Ichikawa: 19V, Pass/L/S frequency 6: 1.5 Kll Z, Welding speed: I 3
0i1a/'l11m, shield gas: li
e 251 /hrin3, Welding Results According to this example, a good weld bead without weld cracks was obtained as shown in FIG. 12.
本発明によれば、ｈｔ−Ｍｇ−ｓ１系のアルミ合金に対
してＡｔ−８Ｉ系の溶卵材リングを予めインサー１−１
．て、これを溶融しながら・・イパルス溶接を行なうこ
とができるので１ｍ接割れの発生を確実に防止でき、従
来法と比・咬して高１１ヒ率で高品質の溶接部がｍられ
る。According to the present invention, the At-8I-based egg-molten material ring is preliminarily attached to the insert 1-1 for the ht-Mg-s1-based aluminum alloy.
．． Since it is possible to perform I-pulse welding while melting this, it is possible to reliably prevent the occurrence of 1m weld cracks, and it is possible to produce high quality welded parts with a high hit rate of 11 m compared to conventional methods.
第１図（イ）はガス絶縁開閉装置の内部導体説明図。
第１１仲）はＡ部詳細図、第２図は従来の溶接方法説明
図、第３図はバイパルス溶接のビード断面図。
第４図はバイパルス溶接のアーク発生状況図、第５図は
バイパルス溶接のビード断面で割れの発生状況図、第６
図は溶加材リング説明図、第７図は溶加材リングを開先
内にインサートし友状態図。
第８図は本発明の溶接状況図、第９図は溶接割れ長さと
リング溶融量と被溶接吻溶融量との比との関係図、第１
０図はリング未溶融状態図、第１１図は実施［Ｐｌの継
手形状図、第１２図は実施例の溶接結果を示す図である
。
１・・・パイプ、２・・・ボス、３・・・溶着金属、４
・・・開先、５・・・溶加材（ＡＡ−８ｉ系合金）、６
・・・溶接トーチ、７・・・バイパルス溶接部、８・・
・タングステン電第２記 第３０
第今図
第 ｇ図
第ｑｌ￥１
４１３−
第１０図
第１１０
第１２図FIG. 1(a) is an explanatory diagram of the internal conductor of the gas insulated switchgear. 11) is a detailed view of part A, FIG. 2 is an explanatory diagram of a conventional welding method, and FIG. 3 is a cross-sectional view of a bead of bi-pulse welding. Figure 4 is a diagram of arc occurrence in bi-pulse welding, Figure 5 is a diagram of crack occurrence in a bead cross section of bi-pulse welding, and Figure 6 is a diagram of crack occurrence in a bead cross section of bi-pulse welding.
The figure is an explanatory diagram of the filler metal ring, and FIG. 7 is a diagram of the state in which the filler metal ring is inserted into the groove. Figure 8 is a diagram of the welding situation of the present invention, Figure 9 is a diagram of the relationship between the weld crack length and the ratio of the ring melting amount and the welding snout melting amount.
Fig. 0 is a diagram of the unfused state of the ring, Fig. 11 is a diagram of the joint shape of the actual [Pl], and Fig. 12 is a diagram showing the welding results of the example. 1...Pipe, 2...Boss, 3...Welded metal, 4
... Groove, 5... Filler metal (AA-8i alloy), 6
... Welding torch, 7... Bipulse welding part, 8...
・Tungsten Electricity No. 2 No. 30 Fig. g Fig. ql ¥1 413- Fig. 10 Fig. 110 Fig. 12
Claims (1)
ｔ−５ｉ系合金の薄帯を一先内にインサートして、パル
スアーク溶接により前記薄帯を溶融させ溶接することを
特徴とするアーク溶接法。1゜In welding A4-Mg-8i series aluminum alloy, A
An arc welding method characterized by inserting a ribbon of a t-5i alloy into one tip and melting and welding the ribbon by pulse arc welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14952881A JPS5853380A (en) | 1981-09-24 | 1981-09-24 | Arc welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14952881A JPS5853380A (en) | 1981-09-24 | 1981-09-24 | Arc welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5853380A true JPS5853380A (en) | 1983-03-29 |
Family
ID=15477101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14952881A Pending JPS5853380A (en) | 1981-09-24 | 1981-09-24 | Arc welding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5853380A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60174263A (en) * | 1983-10-25 | 1985-09-07 | ダナ、コ−パレイシヤン | Welding method |
| CN103464872A (en) * | 2013-09-12 | 2013-12-25 | 昆山奥德鲁自动化技术有限公司 | Welding method for nickel alloy and other metal |
-
1981
- 1981-09-24 JP JP14952881A patent/JPS5853380A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60174263A (en) * | 1983-10-25 | 1985-09-07 | ダナ、コ−パレイシヤン | Welding method |
| JPH0580316B2 (en) * | 1983-10-25 | 1993-11-08 | Dana Corp | |
| CN103464872A (en) * | 2013-09-12 | 2013-12-25 | 昆山奥德鲁自动化技术有限公司 | Welding method for nickel alloy and other metal |
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