JPS61219485A - Method for forming t-type joint by uranami welding - Google Patents
Method for forming t-type joint by uranami weldingInfo
- Publication number
- JPS61219485A JPS61219485A JP5959685A JP5959685A JPS61219485A JP S61219485 A JPS61219485 A JP S61219485A JP 5959685 A JP5959685 A JP 5959685A JP 5959685 A JP5959685 A JP 5959685A JP S61219485 A JPS61219485 A JP S61219485A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- metal
- backing material
- welded
- stocks
- 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
Landscapes
- Arc Welding In General (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）
本発明は、アルミニユム又はアルミニユム合金の裏波溶
接法に係るもので特に、中空の形状で裏面からの加工が
困難な個所の片面Ｔ型継手裏波溶接に有効な裏波溶接法
に係るものである。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to the Uranami welding method for aluminum or aluminum alloys, and is particularly applicable to single-sided T-shaped joints that are hollow and difficult to process from the back side. This relates to the Uranami welding method that is effective for Uranami welding.
（従来の技術）
アルミニユム又はアルミニユム合金の突合せ溶接又はＴ
型継手溶接においては、従来片側から溶接を行う片面裏
波溶接は裏当材を用いない場合良好な裏波ビードを形成
させることは非常に困難であシ、そのため鋼材の裏波溶
接に見られるような正常な裏波ビードを得ることは不可
能であった。したがって、アルミニユム又はアルミニユ
ム合金の裏波溶接では通常耐火物あるいはステンレス鋼
の薄板などを用いた裏当材を開先裏面に取付け、溶融金
属の溶落ちを防止するとともに裏当材に予め施しである
形状と同じに裏波ビードを形成するようにしていた。し
かしながら、中空の形状で裏面の加工が不可能なもので
は、裏当、材を取外すことができず、このような裏当方
法は採用できない。(Prior art) Butt welding or T of aluminum or aluminum alloy
In conventional type joint welding, it is very difficult to form a good uranami bead in single-sided uranami welding, where welding is conventionally performed from one side, unless a backing material is used. It was impossible to obtain such a normal Uranami bead. Therefore, in urananami welding of aluminum or aluminum alloy, a backing material made of refractory or stainless steel thin plate is usually attached to the back side of the groove to prevent molten metal from burning through and to pre-apply the backing material. The Uranami bead was formed to match the shape. However, if the backing is hollow and the back surface cannot be processed, the backing and material cannot be removed, and such a backing method cannot be adopted.
したがってこのような場合、裏当材を被溶接物と同じ材
料で製作し、溶接の際被溶接物と裏当材を同時に溶、接
し裏当材を取外さず、固定したまま使用する方法が用い
られている。Therefore, in such cases, the best method is to manufacture the backing material from the same material as the object to be welded, melt and contact the object and the backing material at the same time during welding, and use the backing material as it is fixed without removing it. It is used.
Ｔ型継手については従来第５図に示す、裏当法カ用いら
れている。このアルミニユム又ハフ／１／ミニュム合金
のＴ型継手裏波溶接について第３図で説明する。Conventionally, the backing method shown in FIG. 5 has been used for T-type joints. Uranami welding of this T-type joint of aluminum or Huff/1/Minium alloy will be explained with reference to FIG.
第３図においてａ、ｂは被溶接物であり、被溶接物すは
被溶接物ａよりも板厚が大きいものとする。In FIG. 3, a and b are objects to be welded, and it is assumed that the object to be welded has a larger plate thickness than the object to be welded a.
Ｃは断面が角形の被溶接物ａ、ｂと同材の裏当材である
。ｄは片面より溶接を行った溶接金属であり、被溶接物
ａ、ｂおよび裏当材Ｃを溶融している。C is a backing material made of the same material as the objects to be welded a and b, which have a rectangular cross section. d is a weld metal that has been welded from one side, and the objects to be welded a, b and the backing material C are melted.
ｅは被溶接物ａと裏当材Ｃおよび溶接金属ｄとの接点、
ｆは被溶接物すと裏当材Ｃおよび溶接金属ｄとの接点で
ある。e is the contact point between the workpiece a, the backing material C and the weld metal d;
f is the point of contact between the object to be welded, the backing material C, and the weld metal d.
このように、第５図に示した裏当溶接法で行ったＴ型継
手を矢印の方向へ荷重を加えた場合、第１図の接点ｅ、
ｆの部分に応力集中が起り、この点ｅ、ｆから破断が開
始する。さらに静的荷重でなく繰返し荷重の場合の疲労
強度は裏当材を用いないで裏側からも溶接を行ったもの
に比べ著しく低下する。In this way, when a load is applied to the T-joint made by the back welding method shown in Fig. 5 in the direction of the arrow, the contact point e in Fig. 1,
Stress concentration occurs at part f, and fracture starts from points e and f. Furthermore, the fatigue strength in the case of repeated loading rather than static loading is significantly lower than that of welding from the back side without using a backing material.
（発明が解決しようとする問題点）
本発明はアルミニユム又はアルミニユム合金による片側
から行なうＴ型継手裏波溶接において、上述した従来法
にみられる強度低下を生じ々い溶接法を提供するもので
ある。(Problems to be Solved by the Invention) The present invention provides a welding method that does not cause the decrease in strength seen in the above-mentioned conventional method in Uranami welding of a T-joint made from one side of aluminum or aluminum alloy. .
（問題点を解決するだめの手段）
本発明は片側から行なうＴ型継手の裏当材に被溶接物と
裏当材とが接し寿いように裏当材にあらかじめ凹部を設
は被溶接物との間に間隙を有するようにして、被溶接物
、裏当材および溶接金属の接点に生ずる微少われなどの
溶接欠陥および応力集中′係数を低減するものである。(Another means to solve the problem) The present invention provides a recess in advance in the backing material of a T-shaped joint that is performed from one side so that the workpiece and the backing material can be in contact with each other for a long time. By providing a gap between the welding material and the welding material, welding defects such as minute cracks that occur at the contact point between the workpiece, backing material, and weld metal and the stress concentration factor are reduced.
スカわち、本発明はアルミニユム又はアルミニユム合金
の片側よりするＴ型継手溶接において、溶接開先の裏側
に配置する裏当材を、被溶接物と該裏当材との間に間隙
を有するように配設して溶接することを特徴とするＴ型
継手裏波溶接法である。Specifically, in T-joint welding of aluminum or aluminum alloy from one side, the backing material placed on the back side of the welding groove is arranged so that there is a gap between the workpiece and the backing material. This is the T-type joint Uranami welding method, which is characterized by the welding of the T-shaped joint.
次に、第１図により本発明に係る溶接法の実施態様につ
いて説明する。Next, an embodiment of the welding method according to the present invention will be described with reference to FIG.
被溶接物１，２で構成されるＴ型継手において、３は裏
当材であり間隙部４，５を有しており、被溶接物２に仮
付溶接６によって取付けられている。In a T-shaped joint comprised of objects 1 and 2 to be welded, reference numeral 3 is a backing material having gaps 4 and 5, and is attached to the object 2 to be welded by tack welding 6.
金弟１図のように構成されたＴ型継手に片側より溶接を
行ったものを第２図に示す。Figure 2 shows a T-shaped joint constructed as in Figure 1, with welding performed from one side.
第２図において、７は溶接により生じた溶接金属であり
、裏当材３と被溶接物１，２との間に設けられた間隙部
４，５を介１７て裏当材３を溶融している。In FIG. 2, 7 is weld metal produced by welding, which melts the backing material 3 through the gaps 4 and 5 provided between the backing material 3 and the objects 1 and 2 to be welded. ing.
したがって、被溶接物１と溶接金属７との接点８および
被溶接物２と溶接金属７との接点９に切欠部が生じない
ため、溶接による微少割れは発生しない。また繰返し荷
重が加わる個所に使用しても疲労強度の低下がないため
設計上きわめて有利である。Therefore, no notches are formed at the contact point 8 between the workpiece 1 and the weld metal 7 and at the contact point 9 between the workpiece 2 and the weld metal 7, so that microcracks due to welding do not occur. Furthermore, even when used in locations subject to repeated loads, there is no decrease in fatigue strength, which is extremely advantageous in terms of design.
以上のように、本発明によればアルミニユム又はアルミ
ニユム合金による片側よりするＴ型継手の溶接品質の向
上が計れる。As described above, according to the present invention, it is possible to improve the welding quality of a T-shaped joint made of aluminum or aluminum alloy and made from one side.
実施例
被溶接材−・・アルミニユム合金５０８３裏当材・・・
アルミニユム合金５０８３溶接材料・・・アルミニユム
合金線材５１８５溶接方法・・・手動ＴｉＧ溶接法
溶接開先・・・第１
溶接条件・・・第１表参照
第 １ 表
この結果を、従来法（第３図参照）により第１表と同一
溶接条件で溶接した結果とを併せて第２表に示す。Example material to be welded: Aluminum alloy 5083 backing material...
Aluminum alloy 5083 welding material...Aluminum alloy wire 5185 welding method...Manual TiG welding method Welding groove...1st Welding conditions...See Table 1. Table 2 shows the results of welding under the same welding conditions as in Table 1.
第 ２ 表
上記第２表から分るように、本発明方法によって得られ
た継手部は、引張強さが従来法で得られたものより高い
だけでなく、海水雰囲気中の疲労強さが従来法で得られ
たものより約２倍高く、溶接法として優れたものである
ことが立証された。Table 2 As can be seen from Table 2 above, the joint obtained by the method of the present invention not only has a tensile strength higher than that obtained by the conventional method, but also has a fatigue strength in a seawater atmosphere that is lower than that of the conventional method. The welding method was approximately twice as high as that obtained by the method, proving that it is an excellent welding method.
なお第２表の海水雰囲気中の疲労強さ試験は、５トン引
張疲れ試験機を使用し、６分間の海水の吹付けと３分間
の空気乾燥の繰返しで行った。The fatigue strength test in a seawater atmosphere shown in Table 2 was conducted using a 5-ton tensile fatigue testing machine by repeatedly spraying seawater for 6 minutes and air drying for 3 minutes.
第１図及び第２図は本発明の詳細な説明図、第３図は従
来技術の説明図である。
復代理人 内 １） 明
復代理人 萩 原 亮 −1 and 2 are detailed explanatory diagrams of the present invention, and FIG. 3 is an explanatory diagram of the prior art. Sub-agents 1) Meifuku agent Ryo Hagiwara -
Claims (1)
継手溶接において、溶接開先の裏側に配置する裏当材を
、被溶接物と該裏当材との間に間隙を有するように配接
して溶接することを特徴とするＴ型継手裏波溶接法。When welding a T-joint from one side of aluminum or aluminum alloy, welding is performed by arranging a backing material placed on the back side of the welding groove so that there is a gap between the workpiece and the backing material. The T-type joint Uranami welding method is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60059596A JPH066230B2 (en) | 1985-03-26 | 1985-03-26 | T-type joint Uranami welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60059596A JPH066230B2 (en) | 1985-03-26 | 1985-03-26 | T-type joint Uranami welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61219485A true JPS61219485A (en) | 1986-09-29 |
| JPH066230B2 JPH066230B2 (en) | 1994-01-26 |
Family
ID=13117778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60059596A Expired - Lifetime JPH066230B2 (en) | 1985-03-26 | 1985-03-26 | T-type joint Uranami welding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH066230B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139229A (en) * | 2013-05-09 | 2014-11-12 | 中国北车集团大同电力机车有限责任公司 | Welding method for forming T-joints |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5847392U (en) * | 1981-09-21 | 1983-03-30 | 株式会社長谷工コーポレーション | Backing material |
-
1985
- 1985-03-26 JP JP60059596A patent/JPH066230B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5847392U (en) * | 1981-09-21 | 1983-03-30 | 株式会社長谷工コーポレーション | Backing material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139229A (en) * | 2013-05-09 | 2014-11-12 | 中国北车集团大同电力机车有限责任公司 | Welding method for forming T-joints |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH066230B2 (en) | 1994-01-26 |
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