When extruding an aluminium profile, a section of an aluminium billet is pressed with great force through a steel die.
The openings made in this die, define the shape of the profile which is produced. The complexity and feasibility of a
profile depends mainly on:the dimension of the profile (the circumscribed diameter);the number of chambers in the profile;the aluminium alloy (e.g. EN AW 6063 T6) and the required surface quality (decorative, industrial)
