Vacuum Forming
Vacuum forming is a thermoforming technique for shaping flat plastic into a three dimensional shape by heating the sheet until flexible and then withdrawing air from between the heated sheet and a mold.
It is an automated process, well suited to medium volume production runs of between about 100 and 100,000 units.
Tooling charges are much lower than injection molding, thanks to the reduced complexity and much lower loads.
A production run using vacuum forming can be set up with several molds on the same machine bed to form multiple impressions. This greatly reduces machine time and material costs. Depending on the time, budget and finish required production tools or molds can be made from epoxy or polyester resin, cast, milled aluminium or wood.
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