Stick welding takes its’ name from the
shape of the electrode, which looks like a stick. It can be used to weld many
types of metals including steel, stainless steel and cast iron.
Stick welding machines provide
constant current (CC) using direct current (DC) or alternating current (AC).
Direct current operates on different directions based on the polarity.
Alternating current switches between directions.
Power in the electrical circuit used to
power the weld is measured in amperes. More current or amperage is needed for
welding thicker metals or electrodes.
Flux core arc welding usually uses a
shielding gas like that used by MAG welding, but it can also be performed
without a shielding gas. It is more productive than MAG welding.
Submerged Arc Welding (SAW) is a joining
process that involves the formation of an electric arc between a continuously
fed electrode and the workpiece to be welded. A blanket of powdered flux
surrounds and covers the arc and, when molten, provides electrical conduction
between the metal to be joined and the electrode. It also generates a
protective gas shield and a slag, all of which protects the weld zone.