JPS5577976A - Pulse arc welding method - Google Patents
Pulse arc welding methodInfo
- Publication number
- JPS5577976A JPS5577976A JP15241078A JP15241078A JPS5577976A JP S5577976 A JPS5577976 A JP S5577976A JP 15241078 A JP15241078 A JP 15241078A JP 15241078 A JP15241078 A JP 15241078A JP S5577976 A JPS5577976 A JP S5577976A
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- welding
- starting
- constant
- power source
- 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
Abstract
PURPOSE: To achieve the improvement in starting characteristics and prevent the occurrence of crater cracking by making base current characteristics into constant-voltage only at the arc starting and turning OFF the pulse currents and switching the base current to constant-voltage characteristics in the specified time till the ending of welding in pulse arc welding.
CONSTITUTION: In the pulse arc welding machine provided with a pulse current generating part and an auxiliary power source 2, the output characteristics of the auxiliary power source 2 are made into constant-voltage characteristics at the welding start. The starting current equivalent to that of the power source for constant-voltage MIG welding is obtained for the arc starting, whereby the difficulty in the starting characteristics in the MIG pulse arc welding may be eliminated. At this time the supply of the pulse currents from the pulse current generating part 1 is not necessary. The tap of the transformer 2a of the auxiliary power source 2 is changed over to the high voltage side after the arc starting, by which the stable base current is supplied and the pulse currents are periodically supplied and are superposed on the base current. Upon ending of the welding, the pulse currents are cut off and the tap of the transformer 2a is changed over to the low voltage side and at the same time the characteristics of the auxiliary power source 2 are made into constant-voltage characteristics, whereby the occurrence of crater is perfectly prevented.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15241078A JPS5577976A (en) | 1978-12-08 | 1978-12-08 | Pulse arc welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15241078A JPS5577976A (en) | 1978-12-08 | 1978-12-08 | Pulse arc welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5577976A true JPS5577976A (en) | 1980-06-12 |
Family
ID=15539896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15241078A Pending JPS5577976A (en) | 1978-12-08 | 1978-12-08 | Pulse arc welding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5577976A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6723957B2 (en) | 2002-03-29 | 2004-04-20 | Illinois Tool Works Inc. | Method and apparatus for welding |
| EP1464432A1 (en) * | 2003-03-31 | 2004-10-06 | Illinois Tool Works Inc. | Method and apparatus for welding with constant current and constant voltage power supply |
-
1978
- 1978-12-08 JP JP15241078A patent/JPS5577976A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6723957B2 (en) | 2002-03-29 | 2004-04-20 | Illinois Tool Works Inc. | Method and apparatus for welding |
| US7084372B2 (en) | 2002-03-29 | 2006-08-01 | Illinois Tool Works Inc. | Method and apparatus for welding |
| US7335852B2 (en) | 2002-03-29 | 2008-02-26 | Illinois Tool Works Inc. | Method and apparatus for welding |
| EP1464432A1 (en) * | 2003-03-31 | 2004-10-06 | Illinois Tool Works Inc. | Method and apparatus for welding with constant current and constant voltage power supply |
| US8487215B2 (en) | 2003-03-31 | 2013-07-16 | Illinois Tool Works Inc. | Method and apparatus for welding |
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