WELDING OPERATIONS I - OD1651 - LESSON 1/TASK 1
(2) Long Arc (figure 13).
When welding with a long arc, as
shown in figure 13, view A, the protecting arc flame, as well as
the molten globule at the end of the electrode, will whirl and
oscillate from side to side.
The fluctuating flame will permit
the molten base metal to become
FIGURE 13.
ARC CHARACTERISTICS,
AND DEFECTS.
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