Melting rate calculation on preheated wires of various chemistry under arc welding

The empirical factors dependences on the process parameters for the welding wires of various chemistry are obtained for the empirical formula permitting to calculate the wire melting rate (feed) in a wide range of currents, preheat temperatures, electrode diameters, and stick-outs under the welding in carbon dioxide on the reversed polarity current. The calculation accuracy by the empirical formula and by the known computational melting model of the same wires is comparatively appraised. The effect of stick-out and preheat temperature increase of the welding wires on the productivity-boosting features of their melting is assessed.