Thermoforming is a manufacturing process used to shape plastic materials into specific forms using heat and pressure. In the production of suitcases, a plastic sheet (commonly ABS or polycarbonate) is heated until it becomes pliable. It is then placed over a mold and formed into the desired shape using vacuum or pressure. Once cooled, the formed shell becomes rigid and retains the molded shape. These molded halves are later trimmed, assembled, and fitted with components like zippers, handles, an