How to weld > Welding defects and discontinuities
Lack of penetration or root defect
Read about possible causes and suitable actions to avoid them
Cause
- Too small joint angle
- Too small gap
- Too large root face
- Wrong welding technique
- Too low heat input
Remedial actions
- Increase the joint angle (45 – 60°)
- Increase the gap
- Adapt the root face in relation to the heat input (1 – 2 mm)
- Decrease the oscillation of the electrode
- Increase the heat input
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