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ii.
The bead will undercut the work.
iii.
The bead will be flat and porous.
iv.
The rod may be freeze or stick to work piece.
Note:
The rate of travel over the work also affects the weld. To ensure proper penetration and enough
deposit of the rod, the arc must be moved slowly and evenly along the weld seam.
5.
SETTING THE AMPERAGE CONTROL
The welder has an infinite current control. It is capable of welding with electrodes up to 1/8”
diameter. It is best to practice your welds on scrap metal which matches the metals you
intend to work with to determine the correct setting for your job. The electrode type and the
thickness of the work piece metal determine the amount of heat needed in the welding
process. Heavier and thicker metals require more voltage (amperage), whereas lighter and
thinner metals require less voltage (amperage). Consult the welding electrode packaging for
recommended welding amperage range.
6.
WELDING TECHNIQUES
The best way to teach yourself how to weld is with short periods of practice at regular
intervals. All practice welds should be done on scrap metal that can be discarded. Do not
attempt to make any repairs on valuable equipment until you are satisfied that your practice
welds are of good appearance and free of slag or gas inclusions.
a.
Holding the electrode
The best way to grip the electrode holder is the way that feels most comfortable to
you. Position the electrode to the work piece when striking the initial arc. It may be
necessary to hold the electrode perpendicular to the work piece. Once the arc is
started, the angle of the electrode in relation to the work piece should be between 10
and 30 degrees. This will allow for good penetration and minimal spatter.
⚠
WARNING
EXPOSURE TO A WELDING ARC IS EXTREMELY HARMFUL TO THE EYES AND SKIN!
Prolonged exposure to the welding arc can cause blindness and burns. Never strike an arc or
begin welding until you are adequately protected. Wear flame-proof welding gloves, a heavy long-
sleeved shirt, trousers without cuffs, high topped shoes, and an ANSI approved welding helmet.
b.
Striking the arc
Scratch the work piece with the end of the electrode to start an arc and then raise it
quickly to create a 1/8 inch gap between the rod and the work piece. See the
following illustration:
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