A process of forming thermoplastic sheet which consists of heating the sheet ad forcing it into or over a mold by vacuum or mechanical or air pressure Used to produce blisters, skin packs and thin-wall containers or components The term is an overall designation for vacuum forming, pressure forming and combinations of these
The process of forming a thermoplastic sheet into a three-dimensional shape by clamping the sheet in a frame, heating it to tender it soft and flowable Then applying differential pressure to make the sheet conform to the shape of a mold or die positioned below the frame