Underwater welding is a specialized technique used to join metal parts while submerged in water. This process is essential for repairing ships, pipelines, and offshore structures. Welders use a combination of electricity and water to create strong bonds, often working in challenging conditions. The two main types of underwater welding are wet welding and dry welding. In wet welding, the welder works directly in the water, while dry welding involves creating a sealed environment around the work area. Both methods require skilled professionals who are trained in both welding and diving safety practices.