The process characterized by no gas required and known as FCAW-SS is called?

The process characterized by no gas required and known as FCAW-SS (Flux-Cored Arc Welding – Self-Shielded) is referred to as a semi-automatic process due to its operational characteristics. In semi-automatic welding, the welder typically initiates the arc and controls the speed of the welding wire feed, while the system manages essential parameters such as voltage and current.

FCAW-SS itself is a specific type of flux-cored arc welding that uses a tubular wire filled with flux and does not require external shielding gas. Instead, the flux within the wire generates a gas shield as it melts, effectively protecting the weld area from contamination. This makes it suitable for outdoor and windy conditions where shielding gas may be blown away.

Manual processes would require the welder to not only control the equipment but also the entire welding process without mechanical assistance, making it less efficient and consistent than semi-automatic processes. Automatic processes, on the other hand, involve complete machine control without the need for human intervention in real-time adjustments, which is not applicable in this context of FCAW-SS. Stick welding refers to the shielded metal arc welding process where a consumable electrode is used, which is different from the flux-cored method.