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ENG
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Selecting the proper electrode
There is no golden rule that determine the exact rod or heat setting
required for every situation. The type and thickness of metal and the position
of the work piece determine the electrode type and the amount of heat nee-
ded in the welding process. Heavier and thicker metals required more am-
perage. It is best to practice your welds on scrap metal which matches the
metal you intend to work with to determine correct heat setting and electro-
de choice. See following some helpful trouble shooting tips to determine if
you are using a correct electrode
When proper rod is used
a. The bead will lay smoothly over the work without ragged edges
b. The base metal puddle will be as deep as the bead that rises above it c. The
welding operation will make a crackling sound similar to the sound of eggs
frying.
When a rod too small is used
a. The bead will be high and irregular b. The arc will be difficult to maintain
3. When the rod is too large is used a. The arc will burn through light metals
b. The bead will undercut the work
c. The bead will be flat and porous
d. Rod may be freeze or stick to work piece
Note: Rate of travel over the work also affects the weld. To ensure proper
penetration and enough deposit of rod, the arc must be moved slowly and
evenly along the weld seam.
4. Operation
Setting the amperage control
The welder has an infinite output current control. It is capable of welding
with 1.6 mm and 2.0 mm and 2.5 mm electrodes.
here is no golden rule that determines the exact amperage required for eve-
ry situation. It is best to practice your welds on scrap metal which matches
the metals you intend to work with to determine 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).