AUTO ARC 120 - Page 27

Figure
7-2.
Conditions
That Affect Weld
Bead
Shape
NOTE
~
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 works
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.
~4:~(
w~
S-0054-A
Figure
7-3.
Gun
Movement
During
Welding
N
OT
E
~
Weld
bead
shape depends
on
gun
angle,
direction
of
travel,
electrode
extension
_____________________
(stickout),
travel
speed,
thickness of
base
metal,
wire
feed
speed
(weld
current),
and
voltage.
100
4j
~
i._-.~l
100
Z~J
~
()
Push
Perpendicular
Drag
GUN
ANGLES
AND
WELD
BEAD
PROFILES
H~
Short
Normal
Long
ELECTRODE
EXTENSIONS
(STICKOUT)
t~
() ()
Slow
Short Normal
Long
FILLET WELD
ELECTRODE
EXTENSIONS
(STICKOUT)
Normal
GUN
TRAVEL
SPEED
Fast
S-0634
OM-151
015
Page
17