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TROUBLESHOOTING
PROBLEM
Melting Tungsten
PROBLEM
Poor Penetration
PROBLEM
Tungsten Contaminated
PROBLEM
Poor Weld Appearance
PROBLEM
Crater in the End of the Weld Bead
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CAUSE
Poor Gas Flow
Wrong Size Tungsten
Incorrect Shielding Gas
CAUSE
Low Voltage
CAUSE
Contact of Tungsten with
Base Metal
CAUSE
Incorrect positioning
CAUSE
Insuffi cient Shielding
Not Enough Filler Material
CORRECTION
Adjust the fl ow rate of the shielding gas.
Check for loose fi ttings where gas could
be leaking.
Increase Tungsten diameter. Refer to chart
for proper sizing.
Only use 100% Argon when TIG Welding.
CORRECTION
Voltage setting is too low for material/
thickness. Increase as needed.
CORRECTION
Keep Tungsten 1/8" to 1/4" from the base
metal. If Tungsten comes in contact break off
end and resharpen immediately..
CORRECTION
The angle between the fi ller metal and the
torch must be less than 90° otherwise the
fi ller metal will prematurely melt and glob off
causing poor weld appearance.
CORRECTION
Keep the torch on the base metal while the
post fl ow shielding gas fl ows to protect and
cool the metal and Tungsten.
Reduce current and add more fi ller at end of
weld. It may also be benefi cial to back step
to ensure no crater will form.
11
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