Aluminum manufacturing involves the extraction of aluminum from its ore, primarily bauxite. The process begins with refining bauxite into alumina through the Bayer process, which uses heat and caustic soda. The alumina is then subjected to electrolysis in a process called the Hall-Héroult process, where it is transformed into molten aluminum. Once the aluminum is produced, it can be cast into various shapes or rolled into sheets. The final products are used in numerous industries, including automotive, aerospace, and construction, due to aluminum's lightweight, strength, and resistance to corrosion.