What is the main role of the stick electrode in the welding process?

The main role of the stick electrode in the welding process is to melt and form the weld pool. During welding, the electrode is consumed as it penetrates the workpiece material, creating a molten pool of metal that fuses together the parts being joined. As the stick electrode heats up, it deposits filler material into the weld pool, which solidifies to form a strong bond. This process is fundamental in creating the weld's integrity and strength.

The other options describe functions that are not the primary responsibilities of the stick electrode. While guidance tools assist in maintaining control during welding, and cooling down the weld is a separate process that may involve different techniques or materials, they do not pertain to the function of the stick electrode itself. Providing additional flux can be part of some welding processes but does not accurately define the core role of the stick electrode in melting and forming the weld pool.