Vacuum forming is a plastic thermoforming process that involves forming thermoplastic sheets into three-dimensional shapes through the application of heat and pressure. During the vacuum forming processes a thermoset plastic material is heated until it becomes pliable, and then it is placed over a mould and drawn in by a vacuum until it takes on the desired shape.
Vacuum thermoforming is a great method for producing plastic parts that have sharp details and fit nicely to specific products. This process is relatively quick and the materials relatively inexpensive. It is normally used for none structural finishing parts as they do not withstand severe operating conditions.
Benefits
The benefits of vacuum forming include:
Relatively cheap tooling High rate of production Reasonably good finish and reproducibility Economical for small to medium production runs High strength to weight ratio Efficient prototyping No need for painting; the colour and texture are formed during the process
Applications
Cover panels Finish mouldings Windows Light bezels Light lenses