What does thermoforming involve?

Thermoforming involves heating a plastic sheet until it becomes pliable, allowing it to be shaped into various forms. This process typically starts with a flat sheet of thermoplastic, which is heated to a temperature that makes it soft and malleable. Once the material is sufficiently heated, it can be formed over or into a mold using vacuum or pressure techniques. After cooling, the plastic retains the shape of the mold, resulting in a final product that can be used in manufacturing or design applications.

The significance of this method lies in its versatility and efficiency in producing items like packaging, trays, and automotive parts. It contrasts with other methods, such as injection molding or subtractive processes like milling. In those methods, materials are either injected into molds or removed from a solid block, rather than initially being softened through heat.