Vacuum casting is a rapid prototyping method which enables large scale production. To make casts, the first thing necessary is to manufacture a piece (master model) in stereolithography. The print of this piece is then created, in a silicone mold. Polyurethane resin is then injected, in a vacuum. After it has solidified, the casts are demolded. In order to achieve an output approximate to what to expect in reality, our prototypists need to deburr them.
ADVANTAGES WITH VACUUM CASTING
It is possible to use flexible, transparent or rigid materials with mechanical and thermal characteristics close to those of the materials used in serial production.
The finish of the moldings is very similar to that of the injected parts.
This technology allows for the creation of overmoldings and also the addition of inserts
The pieces obtained from vacuum casting are through-coloured
DISADVANTAGES WITH VACUUM CASTING
It is necessary to consider the lifespan of the mold allowing for the creation of casts
This technology allows only the production of polyurethane (PU) resin pieces