An Experienced Partner    Techniques Used
 
Techniques Used
   
Thermoforming is a fast and reliable procedure, with minimum machining costs when compared to other procedures and it offers a multitude of possibilities. It is especially suited to small and medium sized volumes of up to 10,000 units per year. It is for products with a thickness of 0.030'' to 0.500''. There are 3 different types of thermoforming:

  
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  Vacuum Forming
     
This is the art of making molded plastic products, by placing a sheet of pre-heated plastic on a wood, resin or aluminum mold. The air between the mold and sheet is removed to allow the plastic to perfectly take on the form of the mold. When sufficiently cooled, it is removed from the mold and trimmed in secondary operation.
   
Pressure Forming
     
If you believe that thermoforming is a method which does not allow for high definition or complexity, then you don't know pressure forming. With the addition of pressurized air in addition to a vacuum, parts can be difficult to differentiate from those made by injection molding. Well-defined logos, small radius, undercuts and close tolerances are all possible with this method. If your annual volume doesn't allow you to invest significantly in injection tooling, but you want parts that look like you have, this method is the one for you!
   
Twinsheet Forming
     
For the most complex products, needing increased rigidity or a hollow space, this is the perfect process. It consists of using two molds which allow for two pieces to be simultaneously joined during the molding process. Two different materials may be used. Inserts or reinforcements may also be added. This procedure is quicker and offers a wider choice of material than rotary forming and compares to extrusion blow molding.
     
After forming, CNC trimming is normally required for a high quality product. On times, additional operations are necessary to finish the product, for example, installing plastic or metal structural supports, adhesive tape, welding, painting, screenprinting, etc.