What welding operations do i need to consider when building the hulls of a large ship?

Question

I want to research on what welding operations are needed when trying to weld large sections of steel together to form a hull of the ship.

what are the drawbacks and benefits of welding operations today for this kind of process?

what would be the best one for the job?

Thank you very much!

Answer 1

The fabrication of hull of large ships is normally done by panels assembled into blocks then the blocks are assembled into sections of the vessel and finally the sections are joined to form the hull.

First, panels consisting of plates and stiffeners are made. In the fabrication of the panels submerged arc welding is most suitable since most of the welding are made on  flat surfaces and these can be done using automatic welding machines. Several of these machines can be run by a single operator

.For the assembly of the blocks however, most of the welding operations are done manually because automatic welding machines may no longer be suitable.

Manual arc welding is also used in the assembly of the blocks to form a section of the vessel and also for welding the sections of the hull together.

Answer 2

Marine Engineer's perform these  kind of things i think

Answer 3

well i have never welded a ship together but i saw on the history where they stick (or arc whatever you want to call it) welded a ship and the ship ended breaking at the weld i would think that mig welding would be better because i'm sure your not going to make it out of aluminum so you can't tig weld it so i would go with mig welding if it was up to me