Arc Blow
Magnetic blowing action develops if the current distribution in the work piece is not regular. You can recognize magnetic blowing action in studwelding by a welding bead which is strengthened and raised on one side. The bigger the diameter of the stud, the more clearly this effect occurs. Please, pay attention to the notes in the EN ISO 14555. If you have difficulties with arc blowing action you cannot solve yourself, please contact your country representative.