BOLE, a major rapid prototyping service company in China, providing a comprehensive range of rapid prototyping service and additive manufacturing service.
What is Vacuum Casting? It is a casting process for elastomers using a vacuum to draw the liquid material into the mold. The process starts by placing two pieces silicon mold in a vacuum chamber . The raw material is mixed and degassed and then poured into the mold .Firstly, a master model is made by CNC or SLA and polished to the final surface finish of the part for Silicone Rubber Mold making. Normally, one Silicone Rubber Mold can produce up to about 20 parts and it depends on the design complexity of the part and casting material. Many materials with simulant properties of real engineering plastic materials are available for vacuum casting. The casting part can be colored in the mold cavity to avoid painting, and specific Shore hardness of rubber part is available as per requirements.
Advantages 1. Fast tooling, normal 1 to 2 days to complete the mould. 2. Fine details can be copied 3. Easy to release parts from the mould due to the non-stick property of the silicone rubber . 4. Good surface finish. 5. Low Cost.
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