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.
MIG welding MIG welding using solid wire is an important process for joining stainless steels, usually with argon or argon/helium-based mixtures. These gases also contain small amounts of an oxidising gas such as oxygen or carbon dioxide to stabilise the arc.