Stealth 9011H, Operator'S Manual, Page: 20 / 28

STEALTH DIGI-TIG 180 DC PULSE PFC MV
3 TMMA operation
If the electrode touches the workpiece over 2S, the welding current will drop auto-
matically to 0 to protect the electrode
Prevent arc-break function
TIG operation – Avoid arc-break. If arc-break occurs the HF will keep the arc stable
Notes
• First check the condition of welding and connection units for any malfunction,
such as ignition spark / gas leakage / out of control etc
• Check whether there is enough Argon gas in the shield gas cylinder. The electro-
magnetic gas valve can be tested via the switch on the front panel
• Do not point the torch at hand or body. When the torch switch is pressed, the arc is
ignited with a high-frequency, high-voltage spark. The ignition spark can cause
interference in equipment.
• The flow rate is set according to the welding power used. Turn the regulation screw
to adjust the gas flow shown on the gas hose pressure meter or the gas bottle
pressure meter.
• The spark ignition is most efficient if you keep a 3mm distance from the workpiece
to the tungsten electrode during the ignition
4.4 Welding Parameters
4.4.1 Joint forms in TIG/MMA
INSTALLATION AND ADJUSTMENT
20
§4.4 Welding Parameters
§4.4.1 Joint forms in TIG/MMA
§4.4.2 The explanation of welding quality
The relation of welding area color & protect effect of stainless steel
Welding area
color
argent , golden blue red-grey grey black
Protect effect best better good bad worst
The relation of welding area color & protect effect of Ti-alloy
Welding area
color
bright argent orange-yellow blue-purple caesious
white powder of
titanium oxid
Protect effect best better good bad worst
§4.4.3 TIG Parameters Matching
The corresponding relationship between gas nozzle diameter and electrode diameter
Gas nozzle diameter/mm Electrode diameter/mm
6.4 0.5
8 1.0
9.5 1.6 or 2.4
11.1 3.2
Notice: the above parameters originate from
《
Welding Dictionary
》
P142, Volume 1 of
Edition 2.
a
butt joint
b
lap joint
c
coner joint
d T
joint
a) butt joint b) lap joint c) corner joint d) T joint
4.4.2 Explanation of welding quality
INSTALLATION AND ADJUSTMENT
20
§4.4 Welding Parameters
§4.4.1 Joint forms in TIG/MMA
§4.4.2 The explanation of welding quality
The relation of welding area color & protect effect of stainless steel
Welding area
color
argent , golden blue red-grey grey black
Protect effect best better good bad worst
The relation of welding area color & protect effect of Ti-alloy
Welding area
color
bright argent orange-yellow blue-purple caesious
white powder of
titanium oxid
Protect effect best better good bad worst
§4.4.3 TIG Parameters Matching
The corresponding relationship between gas nozzle diameter and electrode diameter
Gas nozzle diameter/mm Electrode diameter/mm
6.4 0.5
8 1.0
9.5 1.6 or 2.4
11.1 3.2
Notice: the above parameters originate from
《
Welding Dictionary
》
P142, Volume 1 of
Edition 2.
a
butt joint
b
lap joint
c
coner joint
d T
joint
INSTALLATION AND ADJUSTMENT
20
§4.4 Welding Parameters
§4.4.1 Joint forms in TIG/MMA
§4.4.2 The explanation of welding quality
The relation of welding area color & protect effect of stainless steel
Welding area
color
argent , golden blue red-grey grey black
Protect effect best better good bad worst
The relation of welding area color & protect effect of Ti-alloy
Welding area
color
bright argent orange-yellow blue-purple caesious
white powder of
titanium oxid
Protect effect best better good bad worst
§4.4.3 TIG Parameters Matching
The corresponding relationship between gas nozzle diameter and electrode diameter
Gas nozzle diameter/mm Electrode diameter/mm
6.4 0.5
8 1.0
9.5 1.6 or 2.4
11.1 3.2
Notice: the above parameters originate from
《
Welding Dictionary
》
P142, Volume 1 of
Edition 2.
a
butt joint
b
lap joint
c
coner joint
d T
joint
20