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  Vacuum forming
  Vacuum forming is a moulding technique used to make small batches of plastic parts that
must have a perfect surface. To create the silicon moulds, stereolithography models or
milled parts are used as the master form. Using a vacuum chamber, a variety of
2-component casting resins with a wide range of material properties can be cast,
including hard-solid, soft-rubbery, transparent, crystal clear and RAL colours.

Copies are made using silicon moulds. They have the advantage that complex shapes
with undercuts can be released easily and cast without air inclusions. The choice of PU
casting material is made in accordance with the material specifications for subsequent
series production. The geometry of the part and the PU resin used for casting affect the
durability of the moulds. Usually up to 25 parts can be cast from one silicon mould.

Advantages of the vacuum forming process:
Ideal for small batches
Close-to-production quality
High surface quality
Parts consisting of several components, inserts
   such as screw sockets and other mechanical
   components are possible
  Elastomers, silicon parts
Parts with high transparency (optical properties,
   UV resistance)
Technical functions (snap-in hooks,
   integral hinges)
  Download AXSON
   PU-Gießharze 2012
   as PDF
  Download SLM
   Solutions PU-Gieß-
   harze 2012 as PDF
  Download Altropol
   PU-Gießharze 2011
   as PDF
  Download Synthene
   PU-Harze 2011 as
  Rapid Prototyping  
Vacuum forming
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  Thomas Bengel Construction + Prototypes  
Hossinger Straße 11
D- 72469 Meßstetten
  Fon: +49 07431 630267
Fax: +49 07431 630268 info@tbko.de
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