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What is extruded aluminium?

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Quick Answer

Extruded aluminum is produced during a process that changes aluminum alloy into objects with cross-sectional profiles for various uses. Aluminum is easily machined and cast. When it is combined with other metals, it becomes stronger and more stable.

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Full Answer

Extruded aluminum is also known for its conductivity, ductility and non-magnetic properties. Extruded aluminum can also be recycled repeatedly without loosing its integrity. The extrusion process of metal starts with creating the shape of the die. Once this is done, a billet of aluminum is heated between 800 and 900 degrees Fahrenheit. The billet is put in a loader. Pressure is applied which forces the billet through the die. The extruded part is put on a run-out table as an elongated piece that is the same shape as the opening to the die. Once the new extrusion has cooled, it is placed on a stretcher. The extrusion is then straightened and hardened. The extrusions are then taken to a saw table to be cut to the necessary lengths. Lastly, the extrusions are placed in an age oven. These speed up the aging process, which hardens the aluminum. Additional steps can be taken after the extrusion process to alter the color, texture and brightness of the metal.

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