JPS564386A - Electron beam welding method and its device - Google Patents
Electron beam welding method and its deviceInfo
- Publication number
- JPS564386A JPS564386A JP8016279A JP8016279A JPS564386A JP S564386 A JPS564386 A JP S564386A JP 8016279 A JP8016279 A JP 8016279A JP 8016279 A JP8016279 A JP 8016279A JP S564386 A JPS564386 A JP S564386A
- Authority
- JP
- Japan
- Prior art keywords
- electron beam
- welding
- signal
- transducer
- intensity
- 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
Landscapes
- Welding Or Cutting Using Electron Beams (AREA)
Abstract
PURPOSE: To prevent the crater defect at the end point of weld zone and let sound welding be effected by changing the intensity of an electron beam based on the detection of nondestructive inspection which detects the melting caused by the electron beam irradiation and the frozen state right after the melting.
CONSTITUTION: The electron beam 4 irradiated by an electron gun 7 for welding butt-welds the members 1a and 1b to be welded. In this case, a transducer 8 which is capable of nondestructively detecting the piercing and freezing cycle near the end of welding is disposed near the end point of welding. The transducer 8 receives the ultrasonic reflected signal 12 from the cavity 3 in addition to the ultrasonic reflected signal 11 from the member 1a. When it is decided by a decision circuit 9 that the signal 12 is not received, the signal from the circuit 9 is input to a control circuit 10 which in turn rapidly decreases the intensity of the electron beam or makes the same zero. Namely, the welding is stopped at the time when the cavity 3 is filled by molten metal and therefore no crater defect occurs.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8016279A JPS564386A (en) | 1979-06-27 | 1979-06-27 | Electron beam welding method and its device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8016279A JPS564386A (en) | 1979-06-27 | 1979-06-27 | Electron beam welding method and its device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS564386A true JPS564386A (en) | 1981-01-17 |
Family
ID=13710609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8016279A Pending JPS564386A (en) | 1979-06-27 | 1979-06-27 | Electron beam welding method and its device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS564386A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57175089A (en) * | 1981-04-20 | 1982-10-27 | Inoue Japax Res Inc | Beam working device |
-
1979
- 1979-06-27 JP JP8016279A patent/JPS564386A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57175089A (en) * | 1981-04-20 | 1982-10-27 | Inoue Japax Res Inc | Beam working device |
JPH0256195B2 (en) * | 1981-04-20 | 1990-11-29 | Inoue Japax Res |
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