PREPARE - Set up the MIG (metal inert gas) welder to ensure the wire electrode ... TURN ON - Set the MIG welder to the appropriate settings for the type and thickness of the metal being welded.

The dozen or so students in this fundamentals class just outside Baltimore all “go dark”— that is, pull their welding masks ...

Todd Bridigum, welding instructor at Minneapolis Community and Technical College, and author of, "How to Weld," tackles the basics behind pulsed-spray transfer mode.