Aluminum extrusion is a versatile metalworking technique that transforms heated aluminum alloy billets into complex cross-sectional profiles through high-pressure deformation. The process begins by heating aluminum billets to 400–500°C, enhancing their plasticity. A hydraulic press then forces the softened aluminum through a custom-designed die, shaping it into profiles ranging from simple tubes to intricate multi-cavity structures.
This method offers distinct advantages: it enables high material utilization, produces lightweight yet durable components, and allows for precise dimensional control. Common applications span industries such as automotive (e.g., chassis frames, heat sinks), construction (window frames, curtain walls), and aerospace (aircraft structural parts). Unlike casting, extrusion ensures consistent mechanical properties along the profile’s length due to uniform deformation.
Modern advancements include indirect extrusion, which reduces friction and improves surface finish, and multi-cavity dies for simultaneous production of multiple profiles. Environmental benefits, such as aluminum’s recyclability and energy-efficient production, further drive its adoption. As industries prioritize lightweighting and sustainability, aluminum extrusion remains a cornerstone of innovative manufacturing.
