The objective of this work is the valuation of the behavior of short-circuits frequency and duration time and electrical conductivity on arc reigniting in SMAW (Shielded Metal Arc Welding) process with alternate current and E6013 electrodes. The non parametric statistic analysis realize a robust data processing, minimizing the outliers influence and mistakes derivates about employ of approximations to well know continues distributions. The median and the median absolute deviation (MAD) respect to median of the data are the localization and dispersion estimators used, respectively. The electrode at 160 A present a better stability on metal transference supported on the most little value of MAD for the period of transference (39,36 ms), and the MAD of the short-circuit duration (1,43 ms), according with the presence of a major electric conductivity during the arc reigniting (1766,17x10-3 S·s-1).
SMAW; electric parameters; statistical analysis; robust processing; behavior; E6013
