Plasma & Shielded Metal Arc Welding:
Plasma Arc Welding (PAW) uses electrodes and ionized gases to produce a very hot plasma jet aimed at the weld region. The upper energy concentration is useful for deeper and narrower welds and amplified welding speed.
Shielded Metal Arc Welding (SMAW) is one of the oldest, simplest, and the majority adaptable arc welding processes. The arc is created by touching the tip of a covered electrode to the work piece and withdrawing it quickly to a suitable distance to maintain the arc. The warmth created melts a portion of the electrode tip, its coating, and the base metal in the instant area. The weld forms out of the alloy of these resources as they harden in the weld region. Slag formed to defend the weld against forming oxides, nitrides, and inclusions must be detached after each pass to make sure a best weld.
The Shielded Metal Arc Welding (SMAW) process has the benefit of being comparatively easy; only need a power supply, power wires, and electrode holder. It is usually used in construction, shipbuilding, and pipeline work, particularly in remote locations.