Underwater
Welding
Processes - During last Word War, an urgent need was felt for salvaging vessels sunk into the sea and this need raised the status of under water welding from almost a pipe dream to a practical process.
Moreover, international interests to develop and utilize ocean which covers 70% of the earth and its resources such as development of offshore gas and oil field, fisheries multiplication, large offshore construction and mineral resources, mining in the sea bottom, etc., have led to the development of underwater welding.
Underwater welding has been used for temporary repair work caused by ship's collisions, unexpected accidents, corrosion and other maintenance works.
