Rapid prototyping is a modern and convenient way to make models. And we are going to tell you about one of the ways of rapid prototyping such as vacuum casting. Vacuum casting in silicone molds is a modern technology of manufacturing products from materials polymerized by chemical reactions or with low temperature curing. The advantage of this technology is its simplicity and short time of manufacture of foundry equipment from the two-component silicones. It uses the properties of silicone very accurately reproduce the size and texture of the surface of the master model, low tendency to adhesion, and elasticity of the material, allowing, in some cases, you simply solve the problem of availability of parts from undercuts. Preliminary degassing and casting in vacuum avoids the porosity and surface defects in castings.
Due to speed tooling, this technology allows you to get small (up to 20 – 50 pcs. quickly one form of silicone) in a batch, including the hull parts of devices, ergonomic handles, wiring accessories and other parts of complex shape.
The sizes of cast parts are limited to the greatest possible dimensions of the form (900 x 750 x 750 mm) and a maximum weight of the filling compound (up to 5.5 kg).
When it is necessary to ensure the screw fastening parts, a plastic can be filled with fittings with threaded holes.
The color of products in the desired color is done by adding in the foundry composition of the pigments. The customer can provide coverage corps devices conductive material to electrostatic discharge or shielding from exposure to electromagnetic fields.
Curing for the manufacture of master models can serve as a model provided by the customers (the materials as agreed), and the prototypes made by centers or 3D-printing.
In injection molding technology for the burned models the model of polystyrene for castings are used.
Polystyrene is typically used for making fully working prototypes with high accuracy performance, which can be used immediately after their manufacture.
It endures high mechanical and thermal loads
In casting technology to land the model of polyamide is applied.
The advantages of Rapid Prototyping Technologies (Rapid Prototyping)
Making models of any complexity with high accuracy
It does not require tooling
It shortens the time from design to manufacturing
Prototype allows evaluating the appearance of parts
It helps to check structural reliability and to make the assembly
It helps to check the performance of parts or assembly.
It reduces costs for design and production preparation
In other areas
as design layout and exhibition designs;
as master model;
as assembly units for checking layout decisions;
for a primary test (functional model);
as alternative foundry molds;
for translating design ideas
for manufacturing exclusive souvenirs
for creating models for jewelry and artistic cast
So you may see yourself that this method is not only convenient but also allows to make new models faster and better.
Over the recent decades rapid prototyping services managed with solving lots of tech problems occurring when trying to present a product, design or model. Have you ever experienced such a problem too? Then you are welcomed to visit this rapid prototyping methodology site.
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