OM-240 438 Page 54
13-7. Conditions That Affect Weld Bead Shape
S-0061
Slow
Normal Fast
10° - 30°
Drag
Too Short
Normal Too Long
Spatter
Angle Too Small
Angle Too Large
Correct Angle
Electrode Angle
Arc Length
Travel Speed
. Weld bead shape is affected
by electrode angle, arc
length, travel speed, and thick-
ness of base metal.
13-8. Electrode Movement During Welding
S-0054-A
. Normally, a single stringer
bead is satisfactory for most
narrow groove weld joints;
however, for wide groove weld
joints or bridging across gaps,
a weave bead or multiple
stringer beads work better.
1 Stringer Bead − Steady
Movement Along Seam
2 Weave Bead − Side to Side
Movement Along Seam
3 Weave Patterns
Use weave patterns to cover a
wide area in one pass of the elec-
trode. Do not let weave width ex-
ceed 2-1/2 times diameter of
electrode.
1
2
3
