Underwater cutting and welding

Underwater oxy-arc cutting
Underwater fillet weld in a training pool

Underwater cutting and welding are metalworking techniques used by underwater divers in underwater construction, marine salvage and clearance diving applications. Most underwater welding is direct current wet stick welding, and most underwater metal cutting is immersed oxygen-arc and shielded metal-arc cutting, though other technologies are available and sometimes used. These processes are mostly applied to steel structures as that is the most common arc-weldable material used in the underwater environment.[1]

  1. ^ Cite error: The named reference USN Cutting and welding manual was invoked but never defined (see the help page).