Extrusion is a manufacturing and metal-forming process in which a material is forced through a specially designed die to produce products with a consistent cross-sectional shape. Although extrusion is primarily associated with downstream metal processing rather than mining itself, it is highly relevant to minerals such as bauxite and iron ore because these commodities ultimately supply the raw materials used in extrusion operations. Aluminum produced from bauxite is one of the most commonly extruded metals due to its lightweight properties, corrosion resistance, and versatility. During the extrusion process, heated metal is subjected to high pressure and pushed through a die to create shapes such as rods, tubes, channels, and structural profiles. The process enables the production of complex geometries with excellent dimensional accuracy and material utilization. Extruded products are widely used in construction, transportation, energy, aerospace, packaging, and industrial applications. Understanding extrusion is important within the mining value chain because it demonstrates how mined and processed mineral resources are transformed into high-value engineered products that support modern infrastructure and manufacturing industries worldwide.
