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ELECTRODE WELDING AND GOUGING

Electrode angle

The electrode must be held at the correct angle during the welding operation. The illustration shows the angles to be used when welding in the horizontal welding position.

Electrode travel

Move the electrode at an even rate of travel in the welding direction, with or without weaving. Correct rate of travel is important to achieve a good weld. The illustration shows the faults that can occur if the electrode is moved too quickly or too slowly in a fillet weld.

80°

Arc gap equal to electrode diameter

90°

RATE OF TRAVEL TOO SLOW

RATE OF TRAVEL TOO HIGH Edge faults

Incorrect profile

Convex

Overlap

Poor fusion Slag

4.01

When building up a flat surface, the electrode should be held at an angle of 60° and weaved gently from side to side as the weld advances so that the height of the deposited filler is about 1/3 of the width of each bead. When starting the next parallel buildup run, the tip of the electrode should overlap the previous bead by about 1/3 of the bead width. In this way an even surface can be built up without high spots or craters.

Correct

372

Incorrect