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It is important that the gap be maintained during the welding process without being too wide
or too narrow. If it’s too narrow, the rod will stick to the work piece. If it’s too wide, the arc will
be extinguished. Practice will be needed to maintain the gap. A beginner will usually have
sticker or arc extinguishing. When the rod is stuck to the work piece, gently rock it back and
forth to separate them. If not, a short circuit will occur and it will break the welder. A good arc
is accompanied by a crisp, cracking sound (similar to eggs frying). To lay a weld bead, only
two movements are required: downward (as the electrode is consumed) and in the direction
the weld is to be laid, as in the following illustration:
c.
Types of weld bead
The following content discusses the most commonly used arc welding beads.
The stringer bead is formed by traveling with the electrode in a straight line while
keeping the electrode centered over the weld joint.
The weave bead is used when you want to deposit metal over a wider space than
would be possible with a stringer bead. It is made by weaving from side to side while
moving with the electrode. It is best to pause momentarily at each side before
weaving back the other way.
d.
Welding position
Flat position is easiest of the welding positions and is most commonly used. It is best
if you can weld in the flat position if at all possible as good results are easier to
achieve.
The horizontal position is performed very much the same as the flat weld except that
the angle is different such that the electrode, and therefore the arc force, is directed
Stringer Bead Weave Bead
Flat Position
Horizontal Position