|
Incomplete Fusion |
| No. |
Defects |
Remedies |
|
1. |
Improper joint design |
Increase
included angle of groove joint. Change the groove design to a ‘J’ or a ‘U’
type. |
|
2. |
Presence of slag or oxide flim |
Clean weld surfaces prior to
welding |
|
3. |
Incorrect electrode position and
operation current |
Maintain proper electrode
position and current |
|
4. |
Improper manipulation of arc |
Use correct manipulation techniques to melt the joint faces properly. |
Conventional
