Possible Causes
Corrective Actions
Improper joint preparation
Remove all grease, oil, moisture, rust paint
under coating, and dirt from surface, before
welding
Improper weld technique
Select
higher
voltage
range
and
/
or
adjust
wire
feed
speed
Insufficient heat input
Place
stringer
bead
in
proper
locations
a
t
joint
during
welding
Adjust work angle or widen groove to access
bottom during welding
Momentarily hold arc on groove side walls
when using weaving technique
Keep arc on leading edge of weld puddle
Use correct gun angle of 0 to 15 degrees
Failure
of
weld
metal
to
fuse
completely
with
base
metal
or
a
preceeding
weld
bead
.
Page 23
5. TROUBLESHOOTING
5.5
Incomplete
Fusion
