Vacuum forming is a manufacturing process that involves heating a plastic sheet until it becomes soft and pliable. Once heated, the sheet is stretched over a mold and a vacuum is applied, pulling the plastic tightly against the mold's surface. This creates a precise shape that matches the mold's design. After the plastic cools and hardens, the formed part is removed from the mold. Vacuum forming is commonly used to create items like packaging, trays, and automotive parts. It is a cost-effective method for producing both small and large quantities of products with consistent quality.