Extrusion: Process Description

Casting
Heattreating
Mining/Primary Processing
Recycle/Scrap Melting
Aluminum Casting
Aluminum Smelting
Anode Baking
Bauxite Mining
Bauxite Refining
Extrusion
Forging
Heat Treating
Molten Handling
Rolling

Extrusion is the process of forcing heated aluminum through a die under extreme force to produce the desired shape. Extrusions can be made in literally thousands of complex shapes. Billets are preheated and forced by a ram through one or more dies to achieve the desired cross-section. The product is long in relation to its cross-sectional dimensions and has a cross section other than that of rod and bar and pipe and tube.
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