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ARC WELDING

The consumable electrode is connected to a high amperage low voltage

supply which creates an electric arc between the electrode and the

workpiece.

Benefits over TIG welding include less experience needed and torch kit or

shielding gas are not required.

The most difficult aspect of the arc welding process, particularly for beginners,

is that of striking an arc. We strongly recommend that you practice on some

pieces of scrap metal to get the feel of the operation before you start an

actual welding job.

1. Holding the welding mask close-up to your face, give a short stroke with

the electrode on the workpiece. As soon as the arc is primed, withdraw the

electrode from the workpiece to leave a gap. The current will flow across

the gap with a crackling noise and a brilliant arc. Continue to weld in one

direction, maintaining the small gap as you go.

2. As soon as the arc is struck, maintain a distance from the workpiece equal

to the diameter of the electrode. Keep this distance as constant as

possible for the duration of the weld. As you advance along the workpiece

the angle of the electrode must be maintained at between 20º and 30º.

NOTE: When you prime the arc be sure to withdraw the electrode swiftly

to leave the gap, otherwise the electrode will weld itself to the

workpiece. If this occurs give the electrode a short sharp jerk to

free it and, if necessary, prime the arc again. If you cannot free

the electrode, switch the machine off immediately and free it.

Take care the electrode will get red hot very quickly and will be

capable of burning through welding gloves.

WARNING: WHEN WELDING ALWAYS ENSURE THERE IS ADEQUATE

VENTILATION IN THE WORK AREA AS THE WELDING PROCESS GIVES OFF

TOXIC FUMES.

WARNING: DO NOT STRIKE THE ELECTRODE ON THE WORKPIECE, AS THIS

MAY DAMAGE THE ELECTRODE.

WARNING: WELDING ARCS PRODUCE HARMFUL UV/IR LIGHT WHICH CAN

SERIOUSLY DAMAGE YOUR EYES. ALWAYS USE A WELDING FACE-SHIELD

WITH A SUITABLE FILTER THAT CONFORMS TO CURRENT STANDARDS.

WARNING: NEVER LOOK AT THE ARC WITHOUT A SUITABLE WELDING

FACE-SHIELD

WARNING: PROTECT BYSTANDERS BY USING WELDING SCREENS/

CURTAINS.