JPS55133877A - Pulse arc welding method - Google Patents
Pulse arc welding methodInfo
- Publication number
- JPS55133877A JPS55133877A JP4045679A JP4045679A JPS55133877A JP S55133877 A JPS55133877 A JP S55133877A JP 4045679 A JP4045679 A JP 4045679A JP 4045679 A JP4045679 A JP 4045679A JP S55133877 A JPS55133877 A JP S55133877A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- circuit
- output
- decreases
- current
- 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: To stabilize welding arc length and perform pulse arc welding by making the heat input quantity by the large pulse current superposed periodically on small welding current constant.
CONSTITUTION: The gate pulses which have been given phase-shift in a phase shift circuit 21 according to the specified voltage having been set 20 are applied to the gate of a full-wave rectifying circuit 18 and the AC from a transformer 17 is converted to DC voltage. This DC voltage is supplied to a wire electrode 4 by way of a capacitor 22, resistance 23, diode 2 and DC reactor 3. In this case, a switch element 24 closes at the time when the base current is made large current and is opened when it is made small currnet. When the output of the transformer 7 decreases, the output of a pulse current detector 13 decreases and the output voltage of an integrating circuit 14 decreases. In a comparator 15, the reference voltage from a constant voltage source 16 and the output voltage from the circuit 14 are compared and the differential voltage thereof is applied to a gate control circuit 11. Next, in the circuit 11, the firing phase θ of an SCR 9 is advanced according to the differential voltage input therein.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4045679A JPS55133877A (en) | 1979-04-04 | 1979-04-04 | Pulse arc welding method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4045679A JPS55133877A (en) | 1979-04-04 | 1979-04-04 | Pulse arc welding method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55133877A true JPS55133877A (en) | 1980-10-18 |
Family
ID=12581135
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4045679A Pending JPS55133877A (en) | 1979-04-04 | 1979-04-04 | Pulse arc welding method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55133877A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5070249A (en) * | 1973-07-04 | 1975-06-11 | ||
JPS5220507U (en) * | 1975-07-31 | 1977-02-14 |
-
1979
- 1979-04-04 JP JP4045679A patent/JPS55133877A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5070249A (en) * | 1973-07-04 | 1975-06-11 | ||
JPS5220507U (en) * | 1975-07-31 | 1977-02-14 |
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