Vacuum forming is a technique that is used to shape a variety of plastics. In school it is used to form/shape thin plastic, usually plastics such as; polythene and Perspex. Vacuum forming is used when an unusual shape like a ‘dish’ or a box-like shape is needed. Below you can see the stages involved in vacuum forming.
Vacuum forming is a technique for shaping sheet plastics into 3D shapes, which you can do at home, easily and cheaply. And it’s fun. It’s the easiest way to make an infinite variety of shapes in plastic, or to make molds for casting shapes in other materials, such as concrete.
The basic technique is to
1. clamp a sheet of plastic to a frame (such as a windowscreen-type aluminum frame)
2. heat it in an oven (such as your kitchen oven) until it’s soft and rubbery
3. stretch it over a convex mold of an interesting shape (such as a life cast of your sweetie’s face), and
4. suck the plastic inward onto that mold with a vacuum system (such as your household vacuum cleaner)
Once the plastic cools, you pull it off the mold and trim off the excess plastic, leaving a copy of whatever shape you sucked the plastic onto.
|Material||Welded steel frame|
|Type of control||Manual|
|Operating area||4000 mm x 3000 mm|
|Air||Clean dry shop air. Free of water and oil|
|Pressure||80 to 120 PSI ( 5.5 to 8.25 bar)|
|Airflow||1 CFM (0.02832 m3 / min)|
|Connector||¼ inch ( 6mm )|
|Capacity||7 CFM (12 m3 / hr)|
|Vacuum||0,145 PSI (10 mbar )|
|Material||PET-G, Polycarbonat, acrilic, PVC, ABS, etc|
|Type of element||Ceramicx Full Trough Element|
|Power consumption||250 W|