A REVIEW OF STUDY AND ANALYSIS OF ELECTRIC ARC WELDING IN AIR AND UNDERWATER

Abstract

Underwater welding has made amazing progress in the several years. Any repair method underwater will require the use of underwater welding. The problems in underwater welding have also been discussed in context to the existing welding techniques.The welding machine frame must be grounded to the ship. The welding circuit must include a positive type of switch, usually a knife switch operated on the surface and commanded by the welder-diver. This paper shows the electric underwater welding to assist the maintain of higher range of ultimate tensile strength.