What does gouging refer to in oxyfuel cutting?

Gouging in oxyfuel cutting specifically refers to the process of cutting a groove into a surface. This technique is often employed to create a channel or to remove material from a workpiece. During gouging, the operator uses the oxyfuel torch with a specific nozzle and oxygen flow to produce a high-temperature flame that melts the metal, allowing the molten material to be blown away by the force of the oxygen. This process is crucial in various applications, such as preparing surfaces for welding or structural modifications.

While the other options may involve some form of material removal or surface preparation, they do not accurately define gouging as it pertains to oxyfuel cutting. Gouging is distinct in that it is characterized by its ability to create a groove rather than simply cutting through material or cleaning welds.