Which process does SMAW NOT include?

In Shielded Metal Arc Welding (SMAW), the main processes involved include fusion, arc formation, and heat generation. Fusion refers to the melting and joining of the base metals being welded and the filler (electrode) material, which are crucial for creating a strong bond between the pieces being welded. Arc formation is the process where an electric arc is created between the electrode and the workpiece, generating intense heat necessary for melting the metals.

Heat generation is an inherent part of the SMAW process, as the electric arc produces the temperatures necessary to achieve the melting of the metals. This heat not only allows for the melting of the filler material but also facilitates the melting of the base metals to ensure a proper weld.

Coalescence, on the other hand, is not a term typically used in the context of SMAW. Although it describes a process where materials come together at the molecular level, in welding terminology, coalescence is more generally associated with processes like resistance welding or brazing, where the fusion of atoms occurs without melting the base materials. In SMAW, what is primarily occurring is the fusion of materials aided by heat from the arc. Thus, coalescence is not a distinct process within SMAW, making it the correct