Underwater welding and cutting are essential processes for repairing and maintaining ships that operate in water. Ships are complex structures that require constant inspection and maintenance to ensure their safe operation. Underwater welding and cutting are two specialized techniques used for ship repair and maintenance, and they require specialized training and equipment to ensure safety and effectiveness.
Underwater Welding
Underwater ship welding is the process of welding in a submerged environment to repair or join the ship’s metal structure. This technique is commonly used for repairing cracks, leaks, and damages to the ship’s hull, propellers, and other metal components. Wet welding is the most common method used for underwater ship welding, as it is a cost-effective and efficient method that can be performed quickly. However, it requires skilled underwater welders and specialized equipment to ensure the quality of the welds.
The process of underwater ship welding involves the use of specially designed electrodes that can withstand the water pressure and provide a stable arc for welding. The welding process is carried out by the underwater welder, who uses a welding torch to create a heat source to melt the metal surface, allowing it to fuse with the welding electrode. The welder needs to be careful to maintain a stable arc and ensure the welds are of high quality.


Underwater ship cutting requires specialized equipment and skilled operators to ensure the safety of the ship and its crew. The process involves carefully planning the cutting site and using proper safety equipment, including protective gear and emergency response plans.
Underwater Cutting
Underwater ship cutting is the process of cutting through metal structures of a ship that require repairs or modifications. This process is commonly used for removing damaged sections of the hull or other metal components of the ship. There are two main types of underwater ship cutting: wet cutting and dry cutting.
Wet cutting involves using a specially designed cutting torch that is capable of cutting through metal underwater. This process is commonly used for cutting through the ship’s hull or other metal structures. Dry cutting, on the other hand, involves creating a dry environment around the cutting site using a hyperbaric chamber. Dry cutting is commonly used for precision cutting of the ship’s metal components, such as pipes and valves.