In the present work, gas metal arc welding (GMAW) with flux-cored wires and solid wires using shielding gas has been adopted for welding stainless steel. Five different compositions of shielding gas are used with flux-cored wire and three with solid wire. Spatter
http://link.springer-ny.com/link/service/journals/00170/bibs...
Flux cored wires improved greatly. In the early 60s, welding with flux cored wire was like welding with a smoking, spitting coat hanger. Today, the 1/16 in. E71T-9M gas shielded flux cored wires we
http://www.millerwelds.com/pdf/appstories/arc2sp2.html

Flux Cored Arc Welding (FCAW)-An arc welding process which melts and joins metals by heating them with an arc between a continuous, consumable electrode wire and the work. Shielding is obtained from a flux contained within the electrode core. Depending upon the type of flux-cored wire, added shielding may or may not be provided from externally supplied gas or gas mixture. Consumables: contact tips, flux cored wire, shielding gas (if required, depends on wire type
http://4crawler.cruiserpages.com/Welding/Glossary.shtml
CO2 welding Metal-arc welding in which a bare wire electrode is used the arc and molten pool being shielded with carbon dioxide.
http://www.meg.co.uk/meg/weldglos.htm