Workpiece or Base Metal: This is the material being welded.

Here's a description of the Manual Metal-Arc Welding setup shown in the diagram:

• Workpiece or Base Metal: This is the material being welded.
• Welding Table: A sturdy surface where the workpiece is placed for welding.
• Workpiece Connection (Clamp): A clamp that connects the workpiece lead to the workpiece, completing the electrical circuit.
• Workpiece Lead (Cable): An electrical cable that connects the workpiece clamp to the arc welding power source.
• Electrode: A consumable rod that carries the welding current and melts to form the weld bead.
• Electrode Holder: A device that holds the electrode and provides electrical connection from the electrode lead cable.
• Electrode Lead Cable: An electrical cable that connects the electrode holder to the arc welding power source.
• Arc Welding Power Source: The machine that supplies the electrical current necessary to create and maintain the welding arc.
• Input Power Lead (Cable): The cable that connects the arc welding power source to the main electrical supply.
• Plug to Power Source: The connector that plugs the input power lead into the electrical outlet.