Aluminium rods and bars are primarily manufactured using a process called extrusion. This method is similar to the rolling process used for making sheets. Aluminium is chosen for these applications, particularly in electrical fields, due to its notable properties like high electrical conductivity and resistance to non-corrosion.
The Extrusion Process
The production of aluminium rods and bars involves specific steps based on the extrusion process:
- Initial Shaping: The main method for creating aluminium rods and bars is through extrusion. This process shapes the aluminium material.
- Comparison to Rolling: The extrusion process is noted as being similar in concept to the rolling method used to produce aluminium sheets.
- Post-Extrusion Elongation: After being initially formed by extrusion, the rods and bars are further processed. They are then elongated by being drawn through specialized tools known as dies.
In essence, the manufacturing process involves shaping the material via extrusion, followed by an elongation step using dies, resulting in the final aluminium rods and bars.
