Lamination

Lamination

Reducing the thickness of the ingot is performed through a rolling process that is divided up into two stages. In the first stage, called “roughing”, the ingot passes several times through the rolling cylinders and becomes a strip that is a few tenths of a millimetre thick. The second stage is called “finishing lamination”, where the thickness is further reduced with several cold rolling cycles alternated with annealing cycles, which are essential to reduce the internal tensions of the processed metal.

At the end of this stage, the ingot has already turned into a sheet that is tens of meters long and its thickness can only be measured in microns.