Vacuum forming is a manufacturing process that involves heating a plastic sheet until it becomes soft and pliable. Once the material is heated, it is stretched over a mold and a vacuum is applied. This vacuum pulls the plastic tightly against the mold, allowing it to take on the desired shape. 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 various components in industries such as automotive and consumer goods. It is a cost-effective method for producing both small and large quantities of products.