JPS592592B2 - Electron beam welding method - Google Patents
Electron beam welding methodInfo
- Publication number
- JPS592592B2 JPS592592B2 JP440276A JP440276A JPS592592B2 JP S592592 B2 JPS592592 B2 JP S592592B2 JP 440276 A JP440276 A JP 440276A JP 440276 A JP440276 A JP 440276A JP S592592 B2 JPS592592 B2 JP S592592B2
- Authority
- JP
- Japan
- Prior art keywords
- electron beam
- welding
- beam welding
- backing material
- welding method
- 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、溶接裏当材を用いて溶接を行う電子ビーム溶
接方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electron beam welding method for welding using a welding backing material.
一般に電子ビーム溶接法では溶接ビード先端にコールド
シヤツトのような欠陥が生じたり、或いはスパイク現象
が起き易い。Generally, in electron beam welding, defects such as cold spots or spikes tend to occur at the tip of the weld bead.
そのために、従来・突合せ部を溶接する場合には裏波を
形成することができる溶接条件を設定するか、或いは裏
当材を用いることにより、上記欠陥又はスパイク現象の
発生を防止していた。特に裏波形成溶接条件の設定が困
難な場合には、従来、裏当材として板材を突合せ部に裏
当てして溶接が行われ、溶接終了後母材に溶着した裏当
板を切削によつて除去していた。しかしながら、この処
理には非常な工数を必要とし、形状によつては処理でき
ない場合もあつた。本発明はかかる点に鑑み、上記裏当
材処理を簡単にすることを目的とした電子ビーム溶接方
法を提供するものである。For this reason, conventionally, when welding the butt portions, the occurrence of the defects or spike phenomenon has been prevented by setting welding conditions that allow the formation of back waves, or by using a backing material. In particular, when it is difficult to set the welding conditions for forming a back wave, conventionally welding is performed by placing a plate material as a backing material against the butt part, and after welding is completed, the backing plate welded to the base metal is cut. I was removing it. However, this process requires a large number of man-hours and may not be possible depending on the shape. In view of this point, the present invention provides an electron beam welding method for the purpose of simplifying the processing of the backing material.
すなわち、本発明は、溶接裏当材として粉粒体状金属の
脆弱ブロック体を用いることにより、溶接後溶着してい
る金属粉粒体をグラインダ等で簡単に且つ現場にて処理
することができるものである。That is, in the present invention, by using a brittle block of metal powder as a welding backing material, the metal powder deposited after welding can be easily processed on-site using a grinder or the like. It is something.
以下、本発明の構成を実施例につき図面に基いて説明す
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below with reference to the drawings.
第１図において、１は電子ビームＥによつて突合せ溶接
する母材であつて、その突合ぜ溶接部の裏面には裏当材
として脆弱ブロック体２が当接されている。In FIG. 1, reference numeral 1 denotes a base material to be butt-welded by an electron beam E, and a fragile block body 2 is abutted as a backing material on the back surface of the butt-welded portion.
該脆弱ブロック体２は粉粒体状金属を・・ンマー等で破
壊可能な程度に圧粉又は焼結したブロック状脆弱焼結体
である。そして、このような状態で電子ビーム溶接を行
つた後、上記脆弱ブロック体２をハンマー等（図示省略
）で破壊する。すると、裏ビード゛部分には第２図に示
すように、上記粉粒体状金属が溶着した小塊状の溶着体
３が接合している。この溶着体３はグラインダ等で簡単
に削り取られる。以上のように、本発明の電子ビーム溶
接方法によれば、溶接後の裏当材処理、すなわち裏当材
の除去作業が極めて簡単になり、現場においても処理が
可能である。The brittle block body 2 is a block-shaped brittle sintered body obtained by compacting or sintering powdered metal to such an extent that it can be broken with a hammer or the like. After performing electron beam welding in this state, the fragile block body 2 is destroyed with a hammer or the like (not shown). Then, as shown in FIG. 2, a welded body 3 in the form of a small lump of the powdered metal is welded to the back bead portion. This welded body 3 can be easily scraped off with a grinder or the like. As described above, according to the electron beam welding method of the present invention, processing of the backing material after welding, that is, the removal of the backing material, is extremely simple, and can be performed on-site.
しかも、粉粒体状金属は脆弱プロツク体を破砕した後、
再度焼結成形することにより再利用することができる。
そうして、本発明は裏当材として粉粒体状金属のみから
なる脆弱プロツク体を用いるものであるから、溶接時の
ガス発生がなく、溶接部まわりを所定の真空度あるいは
好ましい不活性ガス雰囲気に保つて電子ビーム溶接を行
なうことができる。また、溶接部が曲面である場合の裏
当に対しても、脆弱プロツク体を切削成型し易い程度の
焼結状態にして｝くことにより裏当材として用いること
ができる。Moreover, after crushing the brittle block, the granular metal
It can be reused by sintering and shaping it again.
Since the present invention uses a brittle block made of only powder metal as a backing material, no gas is generated during welding, and the area around the weld is kept at a predetermined degree of vacuum or a preferable inert gas. Electron beam welding can be performed while maintaining the atmosphere. Moreover, it can also be used as a backing material for a backing material in which the welded portion is a curved surface by bringing the brittle block body into a sintered state to the extent that it can be easily cut and formed.
図面は本発明の実施態様を例示するもので、第１図は本
発明方法による電子ビーム溶接中の状態を示す縦断説明
図、第２図は同電子ビーム溶接後に脆弱プロツク体を破
壊した状態を示す縦断側面図である。
１・・・・・・母材、２・・・・・・脆弱プロツク体、
３・・・・・・溶着体、Ｅ・・・・・・電子ビーム。The drawings illustrate embodiments of the present invention, and FIG. 1 is a longitudinal cross-sectional view showing the state during electron beam welding according to the method of the present invention, and FIG. FIG. 1... Base material, 2... Fragile block body,
3...Welded body, E...Electron beam.
Claims (1)
ック体を溶接部裏面に裏当材として当接して電子ビーム
溶接を行うことを特徴とする電子ビーム溶接方法。1. An electron beam welding method characterized in that electron beam welding is performed by bringing a brittle block formed by compacting or sintering only granular metal into contact with the back surface of the welding part as a backing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP440276A JPS592592B2 (en) | 1976-01-16 | 1976-01-16 | Electron beam welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP440276A JPS592592B2 (en) | 1976-01-16 | 1976-01-16 | Electron beam welding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5288241A JPS5288241A (en) | 1977-07-23 |
| JPS592592B2 true JPS592592B2 (en) | 1984-01-19 |
Family
ID=11583333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP440276A Expired JPS592592B2 (en) | 1976-01-16 | 1976-01-16 | Electron beam welding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS592592B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5456955A (en) * | 1977-10-15 | 1979-05-08 | Agency Of Ind Science & Technol | Backing and air-shielding method for one side electronic beam welding |
| JPH0675798B2 (en) * | 1988-10-13 | 1994-09-28 | 千代田化工建設株式会社 | Butt welding method |
-
1976
- 1976-01-16 JP JP440276A patent/JPS592592B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5288241A (en) | 1977-07-23 |
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