Arc welding is a welding process that involves the use of an electric arc to fuse and connect two metal pieces together. The basic components of arc welding include: Power source: A welding machine that provides the electrical power needed to generate the arc. Electrode: A metal rod created the arc and melted the base metals. The electrode can be made of various metals, including steel, aluminum, and nickel. Welding cables: The cables that connect the electrode holder and the workpiece to the power source. A welding helmet protects the welder's eyes and faces from the bright light and sparks generated during welding. The basic process of arc welding involves the following: Preparing the workpiece: The two pieces of metal joined together must be cleaned and prepared by removing dirt, rust, or oil. Setting up the equipment: The electrode needs to be inserted into the electrode holder, and the welding cables need to be connected to the power source. Striking the arc: The electrode is brought close to the workpiece, and an arc is struck by briefly touching the electrode to the metal and then pulling it away. This creates a spark that melts the metal and creates a pool of molten metal. Welding: The welder moves the electrode along the joint, adding more molten metal to create a strong, continuous weld. Finishing: Once the welding is complete, the weld is cleaned and smoothed to create a finished product. Arc welding is commonly used in construction, automotive repair, and shipbuilding due to its versatility and strength.