Reasons for Porosity in welds (SMAW)
Posted: 04 Sep 2010, 22:40
The main reasons for porosity in welds with SMAW are:
1. Too long arc
2. Root gap more than prescribed
3. Unbaked electrodes
4. Windy atmosphere
5. Rain
6. Wrong polarity
7. Too low current
8. Ineffective cleaning (rust, grease, dirt etc.)
9. Too high travel speed
1. Too long arc
2. Root gap more than prescribed
3. Unbaked electrodes
4. Windy atmosphere
5. Rain
6. Wrong polarity
7. Too low current
8. Ineffective cleaning (rust, grease, dirt etc.)
9. Too high travel speed