JPH04200882A - Electron beam welding method - Google Patents
Electron beam welding methodInfo
- Publication number
- JPH04200882A JPH04200882A JP32897590A JP32897590A JPH04200882A JP H04200882 A JPH04200882 A JP H04200882A JP 32897590 A JP32897590 A JP 32897590A JP 32897590 A JP32897590 A JP 32897590A JP H04200882 A JPH04200882 A JP H04200882A
- Authority
- JP
- Japan
- Prior art keywords
- electron beam
- penetration
- electron
- base metal
- welding
- 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
- 238000003466 welding Methods 0.000 title claims abstract description 23
- 238000010894 electron beam technology Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims description 8
- 230000035515 penetration Effects 0.000 claims abstract description 23
- 239000004020 conductor Substances 0.000 claims abstract description 10
- 239000010953 base metal Substances 0.000 claims abstract description 6
- 230000001133 acceleration Effects 0.000 abstract 2
- 230000004927 fusion Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000615 nonconductor Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Landscapes
- Welding Or Cutting Using Electron Beams (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野１
本発明は電子ビームン岩接における溶け込みン某さの自
動制御法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 1] The present invention relates to an automatic control method for a certain degree of penetration in electron beam rock welding.
［従来の技術１
従来の方法６：Ｊ−１あらがしめ試料にて溶け込み深さ
を確認Ｌ−Ｃその時の適正条件−Ｃもって実機を施Ｉ−
シていた。なお、この種の技術として関連するものには
、例えば、文献 産業出版、現代溶接技術大系「溶接法
の基礎」第（３３亘へ第６５亘記載のものがある。[Conventional technique 1 Conventional method 6: J-1 Check the penetration depth with a rough sample L-C Perform the actual machine under appropriate conditions at that time I-
I was there. Incidentally, related techniques of this type include, for example, those described in the literature Sangyo Shuppan, Modern Welding Technology Encyclopedia "Fundamentals of Welding Methods" (33rd to 65th edition).
「発明が解決しようとする課題１
手記従来技術は、破細ｌＬ物の板厚や開先精度のバラツ
ギで試料と溶け込み深さが異なったり、溶接執のび；
４に’４ゝで同し開先内でも浩１）〉開始部と終了部ど
ではその）ｈけ込み深さが違ってくる。又、電子銃陰極
部の消耗でビーム焦点距離が経時変化し、同様Ｇごイー
の溶け込み深さが違ってくる。つまり、同一条件で施工
しても、その時、その部位で溶け込み深さが異なってく
るもので、−４の点についての対策がなされていなかっ
た。``Problem to be Solved by the Invention 1 Note: In the conventional technology, the penetration depth differs from that of the sample due to variations in the plate thickness and groove precision of the fractured LL material, and the welding process is difficult.
Even within the same groove, the depth of penetration differs between the beginning and end of the groove. In addition, the beam focal length changes over time due to wear and tear on the electron gun cathode section, and the penetration depth of the G gas changes as well. In other words, even if construction is carried out under the same conditions, the penetration depth will differ depending on the location, and no countermeasures have been taken for point -4.
本発明の［］的は、溜は込み深さを自動的に制御Ｊろ′
１［了ビーム溶接法を提供することにある。The object of the present invention is to automatically control the reservoir depth.
1. To provide a beam welding method.
［課題を解決するだめの手段１
手記目的を達成するためＧ乙ＦＩ材をＶ［通、つまり透
過する電工の量や一すイクルを検出し、これを基じ、溶
け込み深さの諸元である加速電圧やヒーノ＼電？Ａ１、
ビーム焦点位置を；演算 制御して、常に一定の謂は込
み深さとなるようにしたものである。[Means to solve the problem 1 Note: In order to achieve the purpose, detect the amount of electrical work passing through and one cycle, and based on this, calculate the penetration depth of the material. A certain accelerating voltage or Hino\den? A1,
The beam focal position is computationally controlled so that the so-called depth of penetration is always constant.
［作 用］
透過電子の量やサイクルを検出するために、母材や電子
ビーム溶接機から絶縁されている状態の導電体でその透
過電子を受け、アース線へ流ず。[Operation] In order to detect the amount and cycle of transmitted electrons, the transmitted electrons are received by a conductor that is insulated from the base material or the electron beam welding machine, and do not flow to the ground wire.
その途中に電流計を設け、電流として測定をする。An ammeter is installed along the way to measure the current.
母材を貫通する透過電子の量やサイクルは、溶け込み深
さに比例して増加する。この関係を利用して、溶接条件
を制御して溶け込み深さをコン１−ロールすることがで
きる。The amount and cycle of transmitted electrons penetrating the base metal increase in proportion to the penetration depth. Utilizing this relationship, it is possible to control the penetration depth by controlling the welding conditions.
〔実 施 例］
以下、本発明の一実施例を第１図により説明する。図に
おいて、電子銃１から発射された電子ビーム（入射電子
）２は母材３へ衝突し、そのエネルギーでもって溶融部
４を形成して溶接する。溶融部の板厚方向の長さ、つま
り溶け込み深さが増ずと母材固体部の厚さが薄くなり、
電子の透過率が増ずにの透過電子５を導電体７で受ける
。この導電体７は、セラミックスなどの非導電体６でも
って、母材３や電子ビーム溶接機などと絶縁された状態
に保持される。導電体７からアース線８でもってアース
する。この中間に電流計９を設け、透過電子の流れを電
流として測定する。この電子ビーム溶接における溶け込
み深さと透過電子（電流）との関係の一例を第２図に示
す。第２図において、横軸に母材３厚み（１）から溶融
部４厚み（ｄ）を差し引いた状態の寸法、縦軸にその状
態におりる電流計９での検出電流（Ｉし）を示す電子ビ
ーム溶接時の入射電子（例えば６０ＫＶｘ１００ｍＡ）
の透過電流の特性図である。つまり、このデータを随時
、マイクロコンピュータ−０で演算−解析して、溶接込
み深さに影響する加速電圧、ビーム電流、ビーム焦点位
置の諸条件を選定し直し、溶け込み深さが常に一定にな
るように指令信号を電子ビーム溶接機へ流し、その溶け
込み深さを制御する。[Example] An example of the present invention will be described below with reference to FIG. In the figure, an electron beam (incident electrons) 2 emitted from an electron gun 1 collides with a base material 3, and uses its energy to form a molten part 4 for welding. If the length of the molten part in the plate thickness direction, that is, the penetration depth, does not increase, the thickness of the solid part of the base material becomes thinner.
The conductor 7 receives the transmitted electrons 5 without increasing the electron transmittance. The conductor 7 is held insulated from the base material 3, the electron beam welding machine, etc. by a non-conductor 6 such as ceramics. The conductor 7 is connected to a ground wire 8 to be grounded. An ammeter 9 is provided in the middle, and the flow of transmitted electrons is measured as a current. An example of the relationship between penetration depth and transmitted electrons (current) in this electron beam welding is shown in FIG. In Fig. 2, the horizontal axis represents the dimension obtained by subtracting the thickness (d) of the melted part 4 from the thickness (1) of the base material 3, and the vertical axis represents the current detected by the ammeter 9 (I) in that state. Incident electrons during electron beam welding (e.g. 60KV x 100mA)
FIG. In other words, this data is calculated and analyzed by the microcomputer 0 from time to time to reselect various conditions such as accelerating voltage, beam current, and beam focus position that affect the weld penetration depth, so that the penetration depth is always constant. A command signal is sent to the electron beam welding machine to control its penetration depth.
本実施例によれば、溶融部の板厚方向の長さ・つまり溶
け込み深さを上手にコントロールできるので、溶け込み
不足による開先未溶着部の発生、溶け過ぎによる溶融金
属の流出つまり溶け落ち等を防止できる。According to this embodiment, since the length of the molten part in the plate thickness direction, that is, the penetration depth, can be effectively controlled, there are problems such as occurrence of unwelded parts at the groove due to insufficient penetration, outflow of molten metal, or burn-through due to excessive melting. can be prevented.
［発明の効果］
本発明によれば、常に溶け込み深さを一定にコントロー
ルできるので、安定した溶接品質を得ることができる。[Effects of the Invention] According to the present invention, the penetration depth can always be controlled to be constant, so stable welding quality can be obtained.
第１図は本発明の一実施例の電子ビーム溶接法の系統図
、第２図は第１図における電子ビーム（ｈ接時の溶け込
み深さと透過電流との特性図である。
１−−−−−一電子銃、２−一〜−−−電子ビーム、３
−−−−−一附材、４．−−−−−一溶融部、５−−−
−−一透過電子、６−−−＝−非導電体、７−−−−−
−導電体、８−−−−−−アース線、９−一一一一一電
流計、１．０−−−−−−マイクロコンビュ／−−−−
一電ｊ＆
２−一一−−電子ヒ私（Ｒ１〃
３−−−４ 、ｆＪFIG. 1 is a system diagram of an electron beam welding method according to an embodiment of the present invention, and FIG. 2 is a characteristic diagram of penetration depth and transmission current during the electron beam (h-weld) in FIG. 1. ---1 electron gun, 2-1~---electron beam, 3
------1 Supplementary material, 4. ------1 melting part, 5---
--One transmitted electron, 6---=-Nonconductor, 7---
-Conductor, 8------ Earth wire, 9-1111 Ammeter, 1.0---Microconbu/----
1 electric j & 2-11--electron electric h I (R1〃 3----4, fJ
Claims (1)
機と絶縁された状態の導電体で受け、該導体からアース
線へ流れる電流を電流計で測定し、加速電圧、ビーム電
流や焦点位置などの溶接条件をマイクロコンピュータで
演算し、所定の溶け込み深さとなるように制御したこと
を特徴とする電子ビーム溶接法。1. The transmitted electrons that penetrated the base metal are received by a conductor insulated from the base metal and the electron beam welding machine, and the current flowing from the conductor to the ground wire is measured with an ammeter, and the accelerating voltage, beam current, and An electron beam welding method characterized by calculating welding conditions such as the focal point position using a microcomputer and controlling the welding conditions to a predetermined penetration depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32897590A JPH04200882A (en) | 1990-11-30 | 1990-11-30 | Electron beam welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32897590A JPH04200882A (en) | 1990-11-30 | 1990-11-30 | Electron beam welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04200882A true JPH04200882A (en) | 1992-07-21 |
Family
ID=18216209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32897590A Pending JPH04200882A (en) | 1990-11-30 | 1990-11-30 | Electron beam welding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04200882A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3091617B1 (en) * | 2011-04-06 | 2023-08-30 | TE Connectivity Germany GmbH | Method for manufacturing at least one functional area on an electric contact element such as a switching contact or a plug contact |
-
1990
- 1990-11-30 JP JP32897590A patent/JPH04200882A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3091617B1 (en) * | 2011-04-06 | 2023-08-30 | TE Connectivity Germany GmbH | Method for manufacturing at least one functional area on an electric contact element such as a switching contact or a plug contact |
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