Aluminium
has wide application in the industry for its especial characteristics.
Aluminium is lightweight; aluminium is corrosion free and
environment-friendly. Aluminium is part of parcel of our daily life;
it’s used to make railway coaches, boats, automobiles, aircrafts and in
space shuttles. The process used to process the aluminium is called aluminium extrusions.
The
process of extrusion starts with making a die cast and forcing
aluminium billet heated to around 900 degree Celsius and then
transferred to the loader of the extrusion machine. The aluminium is
then forced to pass through the die. The entire operation was done in a
neutral atmosphere by flowing nitrogen through the die section.
The
extruded aluminium is then transferred to the cooling table; the cooled
metal is then straightened and sawed to get the desired length. The
aluminium pieces are then transferred to the working table for precise
machining. Once the aluminium is machined to the desired shape and size,
the components are treated to give it the desired hardness and finish.
The
extrusion process gives the aluminium billets the required shape
keeping all its characteristics. The specialty of the metal is in its
extreme lightness and anti-corrosive nature and the strength. Aluminium
fittings are used in outdoors because it is rust proof. Moreover,
aluminium is environment-friendly. The earth crust contains around 6 %
aluminium, and it is nontoxic. That’s why aluminium extrusions are now a
specialized industrial activity.
The
components produced from the extruded aluminium are now required the
finishing. The components are machined, milled, drilled and then
assembled to complete the job. The aluminium components are often
anodized to give the product the required strength and color. The
anodized aluminium is harder and corrosion resistant because of the
protective layer over the surface. The anodized aluminium is harder
because of its crystalline structure.
The
aluminium is now most useful metal and has wide application. It’s used
in utensils and also in aircraft; one of the useful component of the
International Space Station is aluminium.
