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Shaping Materials - Coggle Diagram

- - - - Strip heater
        
        Acrylic line bending (thermoplastic)
    - - You don't heat it, you just apply pressure on it
        
        Use Box folders
  - - - Used to form thin plastic sheet material such as polystyrene, ABS, PVC and acrylic
      - Uses a former
        
        Formers must have draft angles, and rounded corners and edges, in order to release the material after forming
      - Low-cost process because the former is cheap to make
    - - Used to form sheet plastics into dome shapes
        
        Material is clamped in the machine beneath a sheet of metal with a hole in it, and heated until it becomes pliable
    - - Used to form thicker sheet plastics such as acrylic into dish shapes
- - - - Injecting a shot of molten plastic into a mould
  - - - The mould then closes, sealing the base, and air is blown in to inflate the tube to the internal shape of the mould.
      - Used for bottles
        
        Expensive to set up but low unit cost (mass production)