Vacuum casting is a manufacturing process used to make small batches of parts. It starts with a master model (like a prototype) to create a silicone mold. Liquid material, usually plastic, is poured into the mold under a vacuum to remove air bubbles and ensure a smooth, detailed part. It’s commonly used in industries like automotive, electronics, and medical devices to test designs or make small amounts of final products.[1]
Process
Master Model: Start with a high-quality model, often made by 3D printing or CNC machining.
Silicone Mold: Cover the master model with liquid silicone to create a mold, then let it harden.
Remove the Model: Cut the silicone to take out the master model, leaving a cavity shaped like the part.
Pour the Material: Pour liquid plastic or resin into the mold under vacuum to remove air bubbles.
Cure the Part: Let the material harden, then remove the finished part from the mold.[2]
