JPS54131548A - Power source for porality reversal pulse arc welder - Google Patents
Power source for porality reversal pulse arc welderInfo
- Publication number
- JPS54131548A JPS54131548A JP3918978A JP3918978A JPS54131548A JP S54131548 A JPS54131548 A JP S54131548A JP 3918978 A JP3918978 A JP 3918978A JP 3918978 A JP3918978 A JP 3918978A JP S54131548 A JPS54131548 A JP S54131548A
- Authority
- JP
- Japan
- Prior art keywords
- frequency pulse
- low frequency
- high frequency
- porality
- synchronized
- 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
- Arc Welding Control (AREA)
Abstract
PURPOSE: In transistor base bias, high frequency pulse and low frequency pulse are synchronized to remove the irregularity of high frequency pulse at porality reversal, thereby to eliminate arc extinguish so that good welding can be performed.
CONSTITUTION: Low frequency oscillator 10 generates low frequency pulse and high frequency oscillator 11 generates high frequency pulse. Both waveforms are synchronized by sychronizer 40 and insulated by insulator 41. The synchronized high and low frequency pulses are fed to standard voltage input terminals of comparators 14 and 16, respectively. Both waveforms are amplified by amplifiers 17, 18 and fed to the bases of transistors 3, 4 respectively where the currents are restricted. Welding current consists of SP time by constant-voltage source 1 and RP time by constant-current voltage source 2, SP pulse portion being superposed with d.c. as base current, and the current waveform is restricted by the transistors 3, 4.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3918978A JPS54131548A (en) | 1978-04-05 | 1978-04-05 | Power source for porality reversal pulse arc welder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3918978A JPS54131548A (en) | 1978-04-05 | 1978-04-05 | Power source for porality reversal pulse arc welder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54131548A true JPS54131548A (en) | 1979-10-12 |
Family
ID=12546152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3918978A Pending JPS54131548A (en) | 1978-04-05 | 1978-04-05 | Power source for porality reversal pulse arc welder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54131548A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6018275A (en) * | 1983-07-11 | 1985-01-30 | Sansha Electric Mfg Co Ltd | Power source device for arc welding machine |
JPS6320168A (en) * | 1986-07-15 | 1988-01-27 | Nippon Steel Corp | Power source feeder for both ac and dc for arc welding |
US6225598B1 (en) | 1997-07-09 | 2001-05-01 | Hitachi, Ltd. | Method of high frequency pulse arc welding and apparatus therefor |
EP3244522A1 (en) * | 2016-05-10 | 2017-11-15 | Beihang University | Ultrasonic-frequency pulsed gmaw welding power source device |
-
1978
- 1978-04-05 JP JP3918978A patent/JPS54131548A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6018275A (en) * | 1983-07-11 | 1985-01-30 | Sansha Electric Mfg Co Ltd | Power source device for arc welding machine |
JPS6320168A (en) * | 1986-07-15 | 1988-01-27 | Nippon Steel Corp | Power source feeder for both ac and dc for arc welding |
JPH0371940B2 (en) * | 1986-07-15 | 1991-11-15 | Nippon Steel Corp | |
US6225598B1 (en) | 1997-07-09 | 2001-05-01 | Hitachi, Ltd. | Method of high frequency pulse arc welding and apparatus therefor |
EP3244522A1 (en) * | 2016-05-10 | 2017-11-15 | Beihang University | Ultrasonic-frequency pulsed gmaw welding power source device |
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