WASHINGTON â The Supreme Court openly struggled Wednesday with the racial preferences used by the University of Texas to achieve student diversity, as several conservative justices questioned how much is enough to declare affirmative action programs no longer necessary.
Gas metal arc welding (GMAW), also known as metal inert gas or MIG welding, is a semi-automatic or automatic process that uses a continuous wire feed as an electrode and an inert or semi-inert gas mixture to protect the weld from contamination.
This is MIG welding, MIG standing for Metal Inert Gas. The gas is used to shield the molten puddle from the atmosphere and provide a clean environment for your weld. CO2 is the cheaper way to go, but I learned long ago that C25, which is 25% Argon and 75% Carbon Dioxide, produces a cleaner weld.