Measurement of the arc force produced during welding with covered electrodes

Abstract

In this paper the method and apparatus used to measure the arc force produced during welding with covered electrodes were studied and developed. The factor which caused the main error of measurement was revealed, and the experimental results were corrected. The arc force of typical electrodes under different welding conditions was measured and the factors affecting the force were also investigated. Furthermore, the effects of such components of the electrode coatings, as marble, feldspar and fluorspar, on the arc force were studied, and the origin of the arc force in MMA welding with covered electrodes was preliminarily analysed.