JPS5834235B2 - Mehazurekenshiyutsuhouhou - Google Patents
MehazurekenshiyutsuhouhouInfo
- Publication number
- JPS5834235B2 JPS5834235B2 JP50005368A JP536875A JPS5834235B2 JP S5834235 B2 JPS5834235 B2 JP S5834235B2 JP 50005368 A JP50005368 A JP 50005368A JP 536875 A JP536875 A JP 536875A JP S5834235 B2 JPS5834235 B2 JP S5834235B2
- Authority
- JP
- Japan
- Prior art keywords
- misalignment
- welding
- electron beam
- welded
- butt
- 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.)
- Expired
Links
Landscapes
- Welding Or Cutting Using Electron Beams (AREA)
Description
【発明の詳細な説明】
本発明は完全溶造みによる突合せ継手の電子ビーム溶接
における目外れ検出方法に係るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for detecting misalignment in electron beam welding of a butt joint by complete welding.
従来、突合せ継手の電子ビーム溶接では、第１図に示す
ように電子銑から発射された極めて細い電子ビーム１が
被溶接材５及び６の突合せ面２を溶融させつつ板厚を貫
通して極めて狭い溶込み３を生成せしめることにより溶
接が進行する。Conventionally, in electron beam welding of butt joints, as shown in FIG. Welding progresses by creating a narrow penetration 3.
この場合、溶込み形状は若干子細であって、通常裏ビー
ド４が形成される。In this case, the weld shape is slightly narrower, and a back bead 4 is usually formed.
このように、電子ビーム溶接では溶接部の幅が非常に狭
いため、通常の溶接方法に比べて変形が一段と少なく且
つ材質低下が少ないことから継手強度が優れている等積
々の特長が発揮されるが、一方、電子ビーム１と突合せ
面がずれると（所謂目外れ）、未溶融面７が生じ易い（
第２図参照）。In this way, since the width of the welded part in electron beam welding is extremely narrow, compared to normal welding methods, there is much less deformation and less deterioration in material quality, resulting in superior joint strength. However, on the other hand, if the electron beam 1 and the abutting surface are misaligned (so-called misalignment), an unmelted surface 7 is likely to occur (
(See Figure 2).
この未溶融面７はノツチとして作用し、継手強度を低下
させる等の難点を生せしめる。This unfused surface 7 acts as a notch, causing problems such as lowering the strength of the joint.
従って、この目外れの検出は非常に重要であるが、仲々
難しく、未溶融面７が生じない程度の軽い目外れは、目
視は勿論のこと、Ｘ線検査等の非破壊検査でも検出する
ことはできない。Therefore, detection of this misalignment is very important, but it is difficult. Minor misalignments that do not cause the unmelted surface 7 can be detected not only by visual inspection but also by non-destructive tests such as X-ray inspection. I can't.
また、目外れがひどく且つ未溶融面が生じている場合に
も、その開口部が極めて狭いために目視による検出が難
しく、特に第３図に示すように裏ビード４が開口部８に
かぶさっている場合は検出不可能である。Furthermore, even if the mesh is severely misaligned and an unmelted surface is formed, it is difficult to detect visually because the opening is extremely narrow. In particular, the back bead 4 may overlap the opening 8 as shown in FIG. If there is, it is undetectable.
非破壊検査法では未溶融面は可成り検出し易いが部品形
状によっては適用できない場合があり、更に、この面に
処理液が残留して、検査後の補修溶接時に欠陥発生を招
く等の問題がある。Non-destructive testing methods can easily detect unmelted surfaces, but may not be applicable depending on the shape of the part.Furthermore, treatment liquid may remain on these surfaces, leading to defects during repair welding after inspection. There is.
これに対して、本発明は前記課題を解決し得る目外れ検
出方法を提案しようとするものであって、その要旨とす
るところは、突合せ溶接すべき被溶接材のルート側の溶
接面にそれぞれ面取部分を形成することにより目外れの
検出を容易ならしめた点に存するものであり、かくして
、本発明によれば、完全溶造みによる突合せ継手の電子
ビーム溶接において、目外れを目視により容易に検出す
ることができるものである。In contrast, the present invention proposes a method for detecting misalignment that can solve the above-mentioned problems, and the gist of the present invention is to provide a welding method for each welding surface on the root side of the workpiece to be butt welded. This invention consists in making it easy to detect misalignment by forming a chamfered portion, and thus, according to the present invention, it is possible to visually detect misalignment in electron beam welding of a butt joint by complete welding. It can be easily detected.
次に、第４図乃至第６図に示されている一実施例により
第１図乃至第３図と同一部分には同一符号を付して本発
明を更に詳細に説明する。Next, the present invention will be explained in more detail with reference to an embodiment shown in FIGS. 4 to 6, in which the same parts as in FIGS. 1 to 3 are denoted by the same reference numerals.
先ず、第４図において、被溶接材５，６のルート側の溶
接面には面取部分１０，１１がそれぞれ形成してあり、
第５図及び第６図は第４図に示されている開先条件で電
子ビーム溶接を行なった状態が示してあり、特に第５図
は目外れが発生した場合で、面取部分１０がルートに露
出しており、目外れがひどくて未溶融面７が発生した場
合である。First, in FIG. 4, chamfered portions 10 and 11 are formed on the root side welding surfaces of the materials to be welded 5 and 6, respectively.
5 and 6 show electron beam welding under the groove conditions shown in FIG. 4. Particularly, FIG. This is a case where the unmelted surface 7 is exposed to the root and is badly misaligned.
また、第６図は目外れのない場合で、面取部分１０．１
１は完全に裏ビード４中に融合されている。In addition, Fig. 6 shows the case where there is no misalignment, and the chamfered portion 10.1
1 is completely fused into the back bead 4.
以上述べたところから、本発明によれば、目外れが発生
すると、面取部分がルートに現われるために目視により
容易に目外れが検出することができると共に、特に裏ビ
ードが拡がる場合にも適用できるものであり、目外れが
ない場合には面取部分が裏ビード中に完全に融合されて
残留することはなく、面取寸法は板厚、溶接ビードの幅
及び目外れの許容限等を考慮して決められるものである
。From the above, according to the present invention, when a misalignment occurs, the chamfered part appears on the root, so the misalignment can be easily detected visually, and it is also applicable especially when the back bead widens. If there is no misalignment, the chamfered part will be completely fused into the back bead and will not remain, and the chamfer dimensions should be determined based on the plate thickness, weld bead width, tolerance for misalignment, etc. This is something that can be decided after consideration.
第１図乃至第３図は従来の突合せ継手の電子ビーム溶接
を示すもので、第１図は溶込み部における断面図、第２
図は目外れが生じた場合の断面図、第３図は裏ビードが
開口部にかぶさっている場合の断面図、第４図乃至第６
図は本発明方法を適用して突合せ継手の電子ビーム溶接
を行なった場合を示すもので、第４図は本発明方法によ
る継手部の断面図、第５図は目外れが発生した場合の断
面図、第６図は目外れがない場合の断面図である。
１・・・電子ビーム、２・・・突合せ面、３・・・溶込
み、４・・・裏ビード、５，６・・・被溶接材、１０，
１１・・・面取部分。Figures 1 to 3 show conventional electron beam welding of butt joints.
The figure is a cross-sectional view when misalignment occurs, Figure 3 is a cross-sectional view when the back bead covers the opening, and Figures 4 to 6 are cross-sectional views when the back bead covers the opening.
The figure shows the case where a butt joint is electron beam welded by applying the method of the present invention. Figure 4 is a cross-sectional view of the joint part by the method of the present invention, and Figure 5 is a cross-sectional view when misalignment occurs. FIG. 6 is a cross-sectional view when there is no misalignment. DESCRIPTION OF SYMBOLS 1... Electron beam, 2... Butt surface, 3... Penetration, 4... Back bead, 5, 6... Material to be welded, 10,
11... Chamfered part.
Claims (1)
いて、突合せ溶接すべき被溶接材のルート側の溶接面に
それぞれ面取部分を形成することにより目外れの検出を
容易ならしめたことを性欲とする目外れ検出方法。1. In electron beam welding of fully welded butt joints, chamfers are formed on the welding surfaces on the root side of the materials to be butt welded, making it easier to detect misalignment. A method for detecting misalignment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50005368A JPS5834235B2 (en) | 1975-01-10 | 1975-01-10 | Mehazurekenshiyutsuhouhou |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50005368A JPS5834235B2 (en) | 1975-01-10 | 1975-01-10 | Mehazurekenshiyutsuhouhou |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5180642A JPS5180642A (en) | 1976-07-14 |
| JPS5834235B2 true JPS5834235B2 (en) | 1983-07-25 |
Family
ID=11609216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50005368A Expired JPS5834235B2 (en) | 1975-01-10 | 1975-01-10 | Mehazurekenshiyutsuhouhou |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5834235B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5165048A (en) * | 1974-10-28 | 1976-06-05 | Bbc Brown Boveri & Cie |
-
1975
- 1975-01-10 JP JP50005368A patent/JPS5834235B2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5165048A (en) * | 1974-10-28 | 1976-06-05 | Bbc Brown Boveri & Cie |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5180642A (en) | 1976-07-14 |
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