Thermoforming – general information
The origin of thermoforming
The deep drawing was originally from the field of sheet metal forming. Here, extremely heavy presses are necessary to form thin sheets between two 3D shapes (a positive mold and a negative mold). This process technology is used to this day especially in the body construction for fenders and most other parts of motor vehicles.
Vacuum – thermoforming: the materials
Today also hardly indispensable for the packaging industry, etc. is the vacuum forming of thermoplastic materials (thermoplastics) thermoplastics include: acrylonitrile butadiene styrene (ABS), polylactate (PLA), polyamides (PA), polycarbonate (PC), polymethyl methacrylate (PMMA), polyethylene terephthalate (PET), polypropylene (PP), polyethylene (PE), polystyrene (PS), polyvinyl chloride (PVC) and polyetheretherketone (PEEK).
The longest known is probably celluloid. Most commonly used today are polyolefins: for example, polyethylene or polypropylene.