Tweco 200 ACDC Arcmaster(April2006) - Manual (Page 53)

ARCMASTER 200 AC/DC
April 13, 2006 10-5
Description Possible Cause Remedy
4 Portions of the weld
run do not fuse to the
surface of the metal
or edge of the joint.
A
B
Small electrodes used on heavy
cold plate.
Welding current is too low.
A
B
Use larger electrodes and
pre-heat the plate.
Increase welding current.
C Wrong electrode angle. C Adjust angle so the welding arc is
directed more into the base metal.
D Travel speed of electrode is
too high.
D Reduce travel speed of electrode.
E Scale or dirt on joint surface. E Clean surface before welding.
Table 10-2 (continued): Stick Welding Problems
Lack of fusion caused by dirt,
electrode angle incorrect,
rate of travel too high
Lack of side fusion, scale
dirt, small electrode,
amperage too low
Lack of inter-run
fusion
Lack of root fusion
Art # A-04992
Figure 10-2: Example of Lack of Fusion