Steel fabrication Hull

Steel welding is a form of steel fabrication hull. Parmac offers steel fabrication Hull for all steels. Steel fabrication hull refers to the building of metal structures by assembling, bending and cutting of steel.

The first examples of welding date back to the Bronze Age with the welding of bronze later on welding iron and finally steel. However steel welding as we know it was not started until much later. In 1802 a Russian scientist called Vasily Petrov discovered the electric arc and suggested welding as a possible use for it among others. In 1881 a Russian inventor called Nikolai Benardos created the first electric arc welding method known as ‘carbon arc welding’.

There are many ways to steel fabrication hull some of which include:

Arc welding creates an electric arc between electrodes and the base material to melt the metal at the welding point. The welding area may be protected by an inert/semi inert gas or filler material.

Steel welding

Gas welding uses combustion of acetylene in oxygen to produce a flame temperature of 3100°C. The flame is less concentrated than an electric arc and causes slower cooling due to this. This may lead to greater residual stresses and distortions.

Resistance welding creates heat y passing a current through the resistance caused by the contact between two or more metal surfaces in order to weld.
Energy beam welding uses either a laser or electron beam to weld. Both processes are fast and easily automated. However they both have very high equipment costs and a susceptibility to thermal cracking.
Solid state steel welding can be used to weld thin bits of metal together through high frequency vibration and pressure to join them.

Proper protective clothing should always be worn when performing steel fabrication hull (i.e. steel welding) such as heavy leather gloves and protective long sleeve jackets to help prevent burns. Goggles and welding helmets with darkened face plates should always be worn due to the brightness of the welding which can cause eye problems such as arc eye or flash burns (inflammation or cornea and burning retinas). Translucent welding curtains may also need to be applied around the welding area to protect bystanders.