Electrical technology hub

ELECTRIC WELDING   Electric welding is the joining of metal using an electrical arc and a filler metal stick electrode or wire . Welding is done by creating an arc between the base metal (the metal being welded) and the filler metal . DC Welding Direct current is an electric current that has a constant polarity flow in a single direction, that current can be positive or negative. With DC welding, since the magnetic field and current of the arc are constant, stable arcs are produced. Advantages smoother welding output than  AC  more stable & smooth arc Less spatter DC negative offers faster deposition rates when welding thin sheet metals DC positive provides greater penetration into the weld metal Disadvantages DC welding is unable to fix arc blow problems Equipment is more expensive as DC currents require an internal transformer to switch the current Applications DC welding is ideal for joining thinner metals as we...