Wet welding is a technique used to join metal parts underwater. It involves using a special welding rod that can create an electric arc in the presence of water. This method is often employed in marine construction and repair, such as fixing pipelines or underwater structures. The process requires skilled welders who can manage the challenges of working in a wet environment. Wet welding is advantageous because it allows for repairs to be made without needing to drain water or use complex equipment. However, it can produce lower-quality welds compared to traditional welding methods performed in dry conditions.