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TROUBLESHOOTING
PROBLEM
Porosity in weld bead
PROBLEM
Contamination in weld bead
10
Eastwood Technical Assistance: 800.544.5118 >> techelp@eastwood.com
CAUSE
Poor Gas Flow
Contaminated fi ller metal
Contaminated base metal
Poor Shielding
Incorrect Tungsten
Exposure
CAUSE
Contaminated Tungsten
Contaminated Filler Metal
Contaminated Base Metal
CORRECTION
Adjust the fl ow rate of the shielding gas.
Check for loose fi ttings where gas could
be leaking.
Clean fi ller metal making sure to remove
any oil, debris, or moisture.
Clean base metal making sure to remove
any oil, debris, coatings, or moisture.
Make sure to be in an area with no wind and
with any fans turned off. Wind or fans will
blow the shielding gas away from the weld
causing porosity.
Adjust the Tungsten so that 1/8" to 1/4"
protrudes from the Collet.
CORRECTION
Adjust the fl ow rate of the shielding gas.
Check for loose fi ttings where gas could
be leaking.
Clean fi ller metal making sure to remove
any oil, debris, or moisture.
Clean base metal making sure to remove any
oil, debris, coatings, or moisture. If base metal
is cold rolled steel make sure to remove any
mill scale.
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