JPS5587946A - Ultrasonic tester for resistance welding - Google Patents
Ultrasonic tester for resistance weldingInfo
- Publication number
- JPS5587946A JPS5587946A JP16322078A JP16322078A JPS5587946A JP S5587946 A JPS5587946 A JP S5587946A JP 16322078 A JP16322078 A JP 16322078A JP 16322078 A JP16322078 A JP 16322078A JP S5587946 A JPS5587946 A JP S5587946A
- Authority
- JP
- Japan
- Prior art keywords
- nugget
- welding
- welded members
- welding current
- transverse ultrasonic
- 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
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
PURPOSE: To perform good welding through a simple construction, by utilizing a transverse ultrasonic wave to obtain exact information on the nugget of welded members.
CONSTITUTION: When electrodes 3a, 3b are in pressural contact with welded members 1a, 1b, an oscillator 2a is excited to intermittently supply a transverse ultrasonic signal. Welding is started by a welding current control circuit 4. The energized parts of the welded members 1a, 1b are molten depending on a current and an energization time to extend nugget 14. The transmission of the transverse ultrasonic signal is reduced according as the nugget 14 is extended. When the nugget is completed, the ultrasonic wave is not altogether transmitted through the nugget and the output of a detector 9 disappears. As a result, the welding current control circuit 4 stops the supply of the welding current.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16322078A JPS5587946A (en) | 1978-12-27 | 1978-12-27 | Ultrasonic tester for resistance welding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16322078A JPS5587946A (en) | 1978-12-27 | 1978-12-27 | Ultrasonic tester for resistance welding |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5587946A true JPS5587946A (en) | 1980-07-03 |
Family
ID=15769584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16322078A Pending JPS5587946A (en) | 1978-12-27 | 1978-12-27 | Ultrasonic tester for resistance welding |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5587946A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5896247A (en) * | 1981-12-03 | 1983-06-08 | Hitachi Ltd | Detector for welded part |
JP2008256478A (en) * | 2007-04-03 | 2008-10-23 | Honda Motor Co Ltd | Inspection method |
CN110726773A (en) * | 2019-11-22 | 2020-01-24 | 吉林大学 | Couplant-free in-situ pressure holding resistance spot welding ultrasonic detection device and method |
-
1978
- 1978-12-27 JP JP16322078A patent/JPS5587946A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5896247A (en) * | 1981-12-03 | 1983-06-08 | Hitachi Ltd | Detector for welded part |
JP2008256478A (en) * | 2007-04-03 | 2008-10-23 | Honda Motor Co Ltd | Inspection method |
CN110726773A (en) * | 2019-11-22 | 2020-01-24 | 吉林大学 | Couplant-free in-situ pressure holding resistance spot welding ultrasonic detection device and method |
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