VACUUM FORMING & MOULDS
· Vacuum forming is used both in school and industry to form THERMOSETTING PLASTICS such as PS (Polystyrene)& HIPS (High Impact Polystyrene Sheet)
· It is used to make INNER TRAYS to contain multiple things inside packaging, and for BLISTER PACKAGING.
· It is used to make INNER TRAYS to contain multiple things inside packaging, and for BLISTER PACKAGING.
The stages involved in Vacuum Forming
CREATING A MOULD
· The mould must be perfectly shaped and smooth; any imperfections will show up on the finished plastic item.
· The side must be angled (the Draft Angle) so that the mould can be removed afterwards.
· Moulds are usually made from MDF (Medium Density Fibreboard) or Expanded Polystyrene Foam.
· The most quickest and accurate way to make a mould is by modelling it in CAD (eg Pro Desktop) and manufacturing it using a CAM machine such as a CNC ROUTER
· The side must be angled (the Draft Angle) so that the mould can be removed afterwards.
· Moulds are usually made from MDF (Medium Density Fibreboard) or Expanded Polystyrene Foam.
· The most quickest and accurate way to make a mould is by modelling it in CAD (eg Pro Desktop) and manufacturing it using a CAM machine such as a CNC ROUTER
