Engineering, 04.12.2020 01:00, demetriascott20

All of these are true about GMA (MIG) welding EXCEPT that: O both the base metal and electrode are melted.
O shielding gas protects the well, tiom contamination.
O heat is produced using a short electric arc.
the welding gun liner regulates the shielding gas.

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All of these are true about GMA (MIG) welding EXCEPT that: O both the base metal and electrode are...