What may happen if the GMA welding electrode is allowed to strike the base metal outside of the molten weld pool?
The result if the GMA welding electrode is allowed to strike the base metal outside the molten weld pool.
In GMA welding the molten metal pool provides a great resistance in the flow of current through the base metal which results in heat generation and melting of metal.
The resistance of weld pool will be zero when electrode strikes the work metal outside the weld pool...
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