JPH079193A - Backing metal with tack positions - Google Patents
Backing metal with tack positionsInfo
- Publication number
- JPH079193A JPH079193A JP17992293A JP17992293A JPH079193A JP H079193 A JPH079193 A JP H079193A JP 17992293 A JP17992293 A JP 17992293A JP 17992293 A JP17992293 A JP 17992293A JP H079193 A JPH079193 A JP H079193A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- tack
- backing metal
- tack welding
- marks
- 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
- 239000002184 metal Substances 0.000 title claims abstract description 23
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 23
- 238000003466 welding Methods 0.000 claims abstract description 53
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000010953 base metal Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Arc Welding In General (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は溶接用裏当金に関し、よ
り詳しくは、仮付け溶接位置を表示した裏当金に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a backing metal for welding, and more particularly to a backing metal that displays a tack welding position.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】裏当金
は、母材に仮付け溶接して固定されるが、仮付け溶接は
殆どの場合、すみ肉溶接である(図１参照)。2. Description of the Related Art The backing metal is fixed to the base material by tack welding, but tack welding is almost always fillet welding (see FIG. 1).
【０００３】従来、仮付け溶接方法としては、母材に
対して裏当金を連続溶接(全線すみ肉溶接)により全線に
わたって仮付け溶接する方法、母材に対して裏当金を
断続溶接により全線の一部をところどころで仮仮付け溶
接する方法がある。Conventionally, as a tack welding method, a backing metal is continuously welded (whole line fillet welding) to the base metal over the entire line, and a backing metal is intermittently welded to the base metal. There is a method of temporarily tack-welding a part of the whole wire in places.
【０００４】しかし、前者の連続溶接では、全線を溶接
によって拘束するため、本溶接の施工前において、すみ
肉溶接部分に応力が集中して本溶接前に先立って破断す
る恐れがあったり、ひいては母材にまで及んで接合部全
体の脆性破断につながる場合もある(図２参照)。However, in the former continuous welding, since the entire line is restrained by welding, stress is concentrated on the fillet welded portion before the main welding is carried out, and there is a risk that the weld will break before the main welding. In some cases, the brittle fracture of the entire joint can be reached, even reaching the base metal (see Fig. 2).
【０００５】また、後者の断続溶接では、一般に仮付け
溶接の場合は溶接姿勢が不安定な上、勘によって仮付け
位置を決めて行うことが多いため、好い加減な溶接とな
り易い問題がある。Further, in the latter intermittent welding, the welding posture is generally unstable in the case of tack welding, and the tack position is often decided by intuition, so that there is a problem that it tends to be a favorable and weak welding.
【０００６】本発明は、上記従来技術の欠点を解消し
て、仮付け溶接を適確に行うことができる溶接用裏当金
を提供することを目的とするものである。An object of the present invention is to solve the above-mentioned drawbacks of the prior art and to provide a backing metal for welding which can perform tack welding properly.
【０００７】[0007]
【課題を解決するための手段】前記課題を解決するため
の手段として、本発明は、仮付け溶接を行う位置を表示
した仮付け位置目印が長手方向に断続的に付されている
ことを特徴とする仮付け位置付き裏当金を要旨としてい
る。As a means for solving the above-mentioned problems, the present invention is characterized in that a temporary tack position mark indicating the position at which temporary tack welding is performed is intermittently provided in the longitudinal direction. The backing metal with temporary mounting position is as the gist.
【０００８】[0008]
【作用】以下に本発明を図面を参照して更に詳細に説明
する。The present invention will be described in more detail below with reference to the drawings.
【０００９】[0009]
【００１０】裏当金は、通常、板状又はブロック状の形
状で、鋼製(例、ＳＳ４００、ＳＭ４９０Ａ)のものが多
用されており、母材に対する仮付け溶接位置は、角部分
である。The backing metal is usually plate-shaped or block-shaped, and is often made of steel (eg, SS400, SM490A), and the temporary welding position for the base metal is a corner portion.
【００１１】図３に本発明の裏当金の形状の一例を示
す。図中、斜線部分が仮付け位置であって、本例では、
この仮付け位置目印として長手方向に断続的に凹部が形
成されている。凹部の長さは、仮付け溶接長さを考慮し
て決められるが、図示の場合、４０〜６０mm程度であ
る。FIG. 3 shows an example of the shape of the backing metal of the present invention. In the figure, the shaded area is the temporary attachment position, and in this example,
As the temporary attachment position mark, recesses are formed intermittently in the longitudinal direction. The length of the recess is determined in consideration of the tack welding length, but in the illustrated case, it is about 40 to 60 mm.
【００１２】仮付け位置目印は長手方向に平行している
角部分の一方若しくは両方のいずれにも形成することが
できる。両方に形成しておけば、裏当金の使い勝手に拘
らず利用できる利点がある。The temporary position mark can be formed on either one or both of the corners parallel to the longitudinal direction. If it is formed on both sides, there is an advantage that it can be used regardless of the usability of the backing metal.
【００１３】なお、凹部に代えて、仮付け位置目印とし
てマーキングしてもよい。しかし、マーキングは消え易
い欠点があるほか、凹部のようにアークスタートし易い
効果は得られない。It should be noted that instead of the concave portion, marking may be performed as a temporary attachment position mark. However, in addition to the drawback that the marking is easy to erase, it is not possible to obtain the effect of easily starting an arc like a recess.
【００１４】本発明によれば、仮付け位置目印に従って
仮付け溶接すれば、仮付け溶接は断続溶接されるので、
以下のような効果が得られる。According to the present invention, if the tack welding is performed according to the tack position mark, the tack welding is intermittently welded.
The following effects can be obtained.
【００１５】すなわち、連続溶接により裏当金を母材に
本格的に拘束すると、組立溶接の亀裂は、そのまま溶着
金属、母材を含め鉄の組成の弱い箇所をたどって伸延し
ていく傾向にあるため、接合部全体の脆性破断をもたら
す恐れがあるのに対し、本発明によれば、仮付け溶接が
断続溶接であるので、連続溶接のような問題を軽減でき
る利点がある。That is, when the backing metal is fully restrained to the base metal by continuous welding, the cracks in the assembly welding tend to extend as they are, including the weld metal and the base metal, along the weak iron composition. Therefore, according to the present invention, since tack welding is intermittent welding, there is an advantage that problems such as continuous welding can be mitigated.
【００１６】また、本発明の裏当金には、仮付け溶接位
置目印が付されているため、従来のような仮付け溶接を
断続溶接により行う場合に伴う不正確さが解消できる利
点がある。Further, since the backing metal of the present invention is provided with the tack welding position mark, there is an advantage that the inaccuracy associated with the conventional tack welding performed by intermittent welding can be eliminated. .
【００１７】[0017]
【発明の効果】以上説明したように、本発明によれば、
従来に比べ、仮付け溶接を適確に行うことができ、仮付
け溶接の作業性向上、ひいては溶接部の性能向上に寄与
する効果は大きい。As described above, according to the present invention,
Compared with the conventional technique, tack welding can be performed more accurately, and the effect of improving workability of tack welding and eventually improving the performance of the welded portion is great.
【図１】すみ肉仮付け溶接の要領を説明する図である。FIG. 1 is a diagram illustrating a procedure of fillet tack welding.
【図２】連続溶接により仮付け溶接した後に本溶接した
状態を説明する図である。FIG. 2 is a diagram illustrating a state in which temporary welding is performed by continuous welding and then main welding is performed.
【図３】本発明の裏当金の一例を示す斜視図である。FIG. 3 is a perspective view showing an example of a backing metal of the present invention.
Claims (4)
位置目印が長手方向に断続的に付されていることを特徴
とする仮付け位置付き裏当金。1. A backing metal with a tacking position, characterized in that a tacking position mark indicating a position where tack welding is performed is intermittently provided in the longitudinal direction.
いる請求項１に記載の仮付け位置付き裏当金。2. The backing metal with temporary mounting position according to claim 1, wherein a recess is formed as a temporary mounting position mark.
る請求項１又は２に記載の仮付け位置付き裏当金。3. The backing metal with temporary mounting position according to claim 1, wherein the temporary mounting position mark is formed at a corner portion.
いる請求項１に記載の仮付け位置付き裏当金。4. The backing metal with temporary mounting position according to claim 1, which is marked as a temporary mounting position mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17992293A JPH079193A (en) | 1993-06-24 | 1993-06-24 | Backing metal with tack positions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17992293A JPH079193A (en) | 1993-06-24 | 1993-06-24 | Backing metal with tack positions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH079193A true JPH079193A (en) | 1995-01-13 |
Family
ID=16074272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17992293A Pending JPH079193A (en) | 1993-06-24 | 1993-06-24 | Backing metal with tack positions |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH079193A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2025124228A (en) * | 2024-02-14 | 2025-08-26 | 日本車輌製造株式会社 | Railroad vehicle frame structure, railroad vehicle, and backing plate |
-
1993
- 1993-06-24 JP JP17992293A patent/JPH079193A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2025124228A (en) * | 2024-02-14 | 2025-08-26 | 日本車輌製造株式会社 | Railroad vehicle frame structure, railroad vehicle, and backing plate |
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