16
Operating Instructions
6.4 Welding techniques
WARNING
• PROLONGED EXPOSURE TO THE WELDING ARC CAN CAUSE
BLINDNESS AND BURNS.
• DO NOT PERFORM ANY WELDING WHILE STANDING,
KNEELING, OR LYING ON THE GROUNDED AREA. FAILURE
TO COMPLY COULD RESULT IN SERIOUS INJURY OR DEATH.
•
Torch travel:
The movement of the torch along the weld
joint. For a solid weld bead, the welding torch should be
moved steadily and at the right speed along the weld joint.
Moving the torch too fast, too slowly, or erratically prevents
proper fusion and creates a lumpy, uneven bead.
•
Travel direction:
The direction of the torch (1) moving
along the weld joint in relation to the weld puddle (2). The
torch is either pushed into the weld puddle or pulled away
from the weld puddle. For most welding jobs, pull the torch
along the weld joint for greater weld puddle visibility (fig R).
fig R
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1
2
•
Travel speed:
The rate at which the torch is being pushed
or pulled along the weld joint. For a fixed heat setting, if the
travel speed is faster, the penetration will be low and the
finished weld bead will be low and narrow. Likewise, if the
travel speed is slow, the penetration will be deep and the
finished weld bead will be high and wide.
6.5 Types of welding beads
Stringer bead
• The stringer bead (1) is formed by travelling with the
torch (2) in a straight line while keeping the wire and
nozzle centered over the weld joint (fig S).
fig S
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2
1
Weave bead
• The weave bead (1) is made by weaving the wire from
side to side while moving with the torch (2) (fig T).
fig T
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1
2
6.6 Welding position
1.
Flat position:
This position is easiest and most commonly
used. It is best to weld in the flat position to achieve good
results (fig U).
fig U
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