TOPGUN 3200 AC/DC TIG USER MANUAL
13
D
.
TIG mode
GENERAL OPERATION
In the TIG method (Tungsten Inert Gas), the electric arc ignites in an inert gas
(
argon) shield, between the
welding element and the non-fusible electrode, made of pure tungsten or tungsten with additives.
The TIG method is especially recommended for aesthetic and high-quality bonding of metals,
no labor-
intensive mechanical processing after welding. however, this requires proper preparation and
cleaning of the edges of both welded elements. The mechanical properties of the additive material
should be similar to the properties of the welded parts. The role of shielding gas is always played by pure
argon, supplied in quantities depending on the welding current set.
Lynx
. 1
TIG welding process, diagram
Negative polarity is used for most TIG welding operations. The welding gun is connected to the
negative
pole, while the earth gun to the positive pole. In this way, the electrode consumption is
reduced, the amount of heat accumulated in the welded material increases.
