Argon arc welding and plasma welding are different:
1, the principle is not the same: argon arc welding technology is based on the principle of ordinary arc welding, the use of argon on the protection of the metal welding consumables, through the high current so that the welding consumables in the welded substrate melted into a liquid to form a molten pool, so that the metal to be welded and welded to achieve the metallurgical bonding of a welding technology. Plasma arc cutting is a commonly used metal and non-metallic materials cutting process method.
2, different types: argon arc welding according to the different electrodes are divided into melting electrode argon arc welding and non-melting electrode argon arc welding two kinds. There are two kinds of plasma arc, one is "non-transfer arc", the other is "transfer arc".
3, features are not the same: argon arc welding current density, heat concentration, high deposition rate, welding speed and other characteristics. Plasma arc welding has a concentrated energy, high productivity, welding speed, stress deformation is small, stable and suitable for welding thin plate and box material and other characteristics.
Reference:
Baidu Encyclopedia - Tig Arc Welding
Baidu Encyclopedia - Plasma Arc Welding