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13-7. Conditions That Affect Weld Bead Shape
Electrode Angle
Arc Length
Travel Speed
13-8. Electrode Movement During Welding
1
Correct Angle
Angle Too Small
Too Short
Slow
3
Angle Too Large
° -
°
10
30
Drag
Normal
Normal
2
.
Weld bead shape is affected
by
electrode angle,
length, travel speed, and thick-
ness of base metal.
Spatter
Too Long
Fast
S-0061
.
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.
S-0054-A
OM-250 200 Page 41
arc
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