Thermoforming is a generic term for the manufacturing of plastic components through the vacuum or pressure forming processes. An overview of the single-sheet thermoforming process consists of heating extruded plastic sheet and forming the sheet over a male mold or into a female mold. Depending on what type of mold a customer selects, the thermoforming process allows the customer the ability to receive a part with the same aesthetic properties as an injection-molded part at a fraction of the tooling expense involved when you compare the cost in injection molding.