What is one of the consequences of arc blow during welding?

Arc blow occurs when the electric arc between the electrode and the workpiece is influenced by magnetic fields, which can cause the arc to wander or deflect. This phenomenon leads to inconsistent weld quality as the arc may not maintain a steady path over the weld joint. Consequently, the weld may exhibit uneven penetration, poor fusion, or varying bead appearance, all of which directly affect the integrity and strength of the weld.

The presence of arc blow introduces challenges in maintaining proper control of the welding process, emphasizing the importance of addressing it to achieve high-quality welds. Understanding how arc blow impacts the welding arc and overall weld quality is crucial for welders, allowing them to implement strategies to mitigate its effects.