JPS54135643A - Treating method for crater of plasma keyhole welding - Google Patents
Treating method for crater of plasma keyhole weldingInfo
- Publication number
- JPS54135643A JPS54135643A JP4344178A JP4344178A JPS54135643A JP S54135643 A JPS54135643 A JP S54135643A JP 4344178 A JP4344178 A JP 4344178A JP 4344178 A JP4344178 A JP 4344178A JP S54135643 A JPS54135643 A JP S54135643A
- Authority
- JP
- Japan
- Prior art keywords
- crater
- pool
- wire
- core wire
- feeding
- 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 In General (AREA)
Abstract
PURPOSE: To carry out the crater treatment without producing blowhole, burn through or crater crack etc., by regulating feeding angle of core wire at a proper extent and directly feeding the core wire in molten pool.
CONSTITUTION: Relative advance of the basic material 3 and the torch 2 at the crater part, is stopped at the time of finished welding and feeding of the core wire 1 to the crater part, is started lowering flowing quantity of center gas. On this occasion, the angle α of the wire 1 is made within the extent of more than 50° and less than 80° and tip end of the wire 1 is dipped in the molten pool 4. Hereby, arc heat is transmitted in the pool 4 and outer surface of the pool 4 is solidified after the center gas is passed through to the outer face. Accordingly, blowhole is not remained and the back bead 5 is not projected and also trouble of crater crack is not taken place. Also, the above effect is obtained even when the basic material is thick and small diameter or much Cr, Ni components are contained.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4344178A JPS54135643A (en) | 1978-04-12 | 1978-04-12 | Treating method for crater of plasma keyhole welding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4344178A JPS54135643A (en) | 1978-04-12 | 1978-04-12 | Treating method for crater of plasma keyhole welding |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54135643A true JPS54135643A (en) | 1979-10-22 |
Family
ID=12663776
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4344178A Pending JPS54135643A (en) | 1978-04-12 | 1978-04-12 | Treating method for crater of plasma keyhole welding |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54135643A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49133250A (en) * | 1973-04-26 | 1974-12-20 | ||
JPS502642A (en) * | 1973-05-12 | 1975-01-11 |
-
1978
- 1978-04-12 JP JP4344178A patent/JPS54135643A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49133250A (en) * | 1973-04-26 | 1974-12-20 | ||
JPS502642A (en) * | 1973-05-12 | 1975-01-11 |
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