With the increasing consumer demand for VR glasses, manufacturers are turning to economical and efficient production methods like vacuum casting. It is a widely used method for producing plastic prototype parts on a large scale. Vacuum casting allows OEMs to create numerous copies of their VR glasses design and its functional parts.
As compared to other manufacturing methods, vacuum casting provides a higher quality end product at a faster pace. Check out Hemtom’s vacuum casting services for small-to-medium businesses on our website.
What is the Major Reason to Use Vacuum Casting?
Traditional casting methods suffered from an air entrapment problem, and vacuum casting was invented to solve it. It prevents air from getting trapped inside pockets formed in molds. Without vacuum casting, the air pockets can weaken the structure of the product. This makes it an excellent choice for mass-producing a VR glasses design.
How are VR Glasses Made Using Vacuum Casting?
There are multiple stages in the vacuum casting process of a VR glasses design. It is labor-intensive yet very easy to manage and quite fast-paced. Allvacuum casting processes goes through these basic steps:
1. Master Model
A master model is the first step and can be bought or created. It can either be a standard part of a custom one made through CNC machining or 3D printing. The master model needs to be of the correct dimensions to ensure consistency in the final stages.
2. Mold Production
Silicone mold is created using a liquid cone by pouring it over the master model inside a casting box. This box is then left in an oven. Later, the mold is cut to reveal the empty cavity created. This cavity is of the same shape as the VR glasses design. This master pattern can be reused about twenty times.
3. Casting Copies
Next, the choice of resin is produced by mixing appropriate materials, which depends on the desired end result. This mixture goes into the empty cavity and forms the required product design. Then, the resin is cured using a vacuum to ensure there are no air bubbles inside the structure.
4. Casting Machine
There is an upper and a bottom chamber inside a casting machine, with the top one carrying a moving plate and a pair of dies. The mold cavity containing a vacuum is present between those two dies. Meanwhile, the bottom chamber has a crucible where the resin flows in. The final VR glasses design is then achieved after removing the excess material.
Why Do Manufacturers Prefer Vacuum Casting?
Most companies use vacuum casting to create VR glasses design prototypes because it offers several benefits, including:
· Low Production Cost: Silicone is cheaper than other casting materials and can be used in multiple types. Therefore, the entire process is very economical and saves a lot of production costs.
· Fast Results: The rapid pace at which vacuum casting works provides a fully working model in very little time. This helps OEMs meet tight deadlines and urgent orders in lesser periods. Vacuum casting helps turn a VR glasses design CAD file into a physical product in just a few days.
· Higher Quality: Product quality is something that no manufacturer should compromise on. Vacuum casting not only allows for a faster workflow but also comes with better rigidity, hardness, and structure properties over other methods.
· Better Finish: Final products made using vacuum casting have a very good finish and resemblance to the master pattern. This is due to the silicone mold, as it captures the finest details and intricate design nuances.
Manufacturers wanting to switch to vacuum casting for improving their VR glasses design and increasing their turnover should definitely consider this method. Our Hemtom website provides more details about the process and our services.