Rocks & mirror
Encyclopedia of Marine and Energy Technology



A joining process that produces coalescence of materials by heating them to the welding temperature, with or without application of pressure or by the application of pressure alone, and with or without the use of filler metal.

Welding of hull structures is to be carried out by qualified welders, according to approved and qualified welding procedures and with welding consumables approved by the Classification Society.

Automatic welding – Welding with equipment that requires only occasional or no observation of the welding, and no manual adjustment of the equipment control.

Machine welding – Welding with equipment, which performs the welding operation under constant observation and control of a welding operator.

Manual welding – Welding with the torch, gun or electrode holder and manipulated by hand.