C-4
OPERATION CONTROL AND CONNECTORS
C-4
TIG WELDING TECHNIQUES:
The suggested electrode and welding rod angles for welding a bead on plate. The same angles are used
when marking a butt weld. The torch is held 60-75
o
from the metal surface. This is the same as holding the
torch 15-30
o
from the vertical. Take special note that the rod is in the shielding gas during the welding
process
3. DC TIG / PULSE OPERATION
PARAMETERS SETTING:
Choose the DC TIG mode and Pulse welding function, LIFT/HF , 2T/4T, adjust the preflow time, initial
current, slope up time, peak current, base current, slope down time, crater current, postflow time, pulse
frequency, pulse ratio.
BASE CURRENT SETTING:
Usually set to a small value as long as
it doesn’t extinguish the arc.
PULSE FREQUENCY SETTING:
The higher frequency, the denser the weld seam and vice versa.
PULSE RATIO SETTING:
The ratio determines the heat input, the bigger ratio, the wider and deeper the
weld seam and vice versa. Usually set the ratio between 30%-70%.
