Blitz Glass and Aluminium

Doing it Right


Aluminium is a silvery white, soft, ductile metal. It is the third most abundant element (after oxygen and silicon), and the most abundant metal, in the Earth's crust. It is remarkable for the its low density and for its ability to resist corrosion. Structural components made from aluminium and its alloys are vital to the aerospace industry and are important in other areas of structural materials. Aluminium is the most commonly extruded material, and can be hot or cold extruded. If it is hot extruded it is heated to 575 to 1100 °F (300 to 600 °C)

Extrusion is a process used to create objects of a fixed, cross-sectional profile. A material is pushed or drawn through a die of the desired cross-section. The two main advantages of this process over other manufacturing processes are its ability to create very complex cross-sections and work materials that are brittle, because the material only encounters compressive and shear stresses. It also forms finished parts with an excellent surface finish.