What type of welding is indicated by the term "flux-cored"?

The term "flux-cored" refers to a welding process that utilizes a hollow wire through which flux is distributed. This flux serves a dual purpose: it aids in the welding process by providing a protective atmosphere to shield the molten weld pool from contamination by atmospheric gases and it can also contribute to the formation of slag, which helps refine the weld.

In flux-cored arc welding (FCAW), the hollow wire allows for the injection of flux materials that enhance weld quality, making it particularly useful for welding thicker materials and in outdoor environments where wind could affect the shielding provided by other processes. This feature distinguishes it from processes that use solid wire or rely strictly on external gas for shielding.

The aspects mentioned in the other options do not align with the characteristics of flux-cored welding. For example, solid wire does not provide the benefits of flux like a hollow wire does, and gas-only processes lack the versatile protection provided by the flux. Additionally, labeling it as a non-shielded process is misleading since the flux indeed creates a shielding effect during welding.