To prevent arc blow from occurring, what should you do?

To prevent arc blow, the most effective method is to turn off the machine, remove the ground clamp momentarily, and then clamp it back on. This process helps in reestablishing a proper ground connection, which can alleviate the issue of arc blow that often occurs due to magnetic fields interfering with the arc stability. Arc blow is typically caused by uneven magnetic fields or ground connections that can deflect the arc away from the weld area, leading to inconsistent weld quality.

Restoring a proper ground connection ensures that the electrical path is optimized, reducing magnetic interference that can cause arc blow. This method effectively tackles the root of the problem rather than attempting to compensate for it through adjustments to other parameters.

Increasing welding speed, changing the electrode type, or lowering the voltage may have varying effects on the welding process but are less direct in addressing the issue of arc blow compared to ensuring a solid ground connection.