Is welding possible underwater?

This is a common question in the minds of many that are recently learning about welding. The answer to this, as a surprise to many is, yes! Welding can be performed underwater and underwater welding has been used for a long time to make quick repairs to parts of the ship that are underwater like the hull or the propeller. The process that is used underwater in wet conditions is known as shielded metal arc welding. This process makes use of a waterproof electrode. With the help of such techniques, repairs to a ship or a submarine can be done on the go without the necessity to dock the ship at a port all the time for repairs. Also welding underwater is possible by using friction welding techniques and also by using flux coated arc welding. With such possibilities, experiments are going on to carry out welding in greater depths on thicker materials.