Vacuum Casting Rapid Prototyping And Vacuum Casting Service For Custom Parts

Summary:

Should you choose vacuum casting for your prototyping needs? Here is everything you need to know about the process.
In the world of rapid prototyping, vacuum casting is a valuable technique, which can complement other processes, like CNC machining and 3D printing, or be used independently to advance product development with high-quality prototypes. There are many reasons to use it for rapid prototyping applications. Keep on reading to find out if the process is right for you.

Polyurethane Vacuum Casting

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What Is Vacuum Casting?

Polyurethane vacuum casting is a specialized technique for making high-fidelity copies of master patterns using inexpensive silicone molds and pourable casting resins. Copies made in this way demonstrate the same quality as plastic injection molded parts while taking only a fraction of the time and expense to produce.

Advantages Of Vacuum Casting

• · Low cost for molds
• · Molds can be made in a few days
• · Many types of polyurethane resins are available for casting, including overmolding
• · Cast copies are highly accurate with excellent surface texture
• · Molds are durable for 20 or more copies
• · Perfect for engineering models, samples, rapid prototypes, bridge to production

What is the process of vacuum casting?


The process starts by placing a two piece silicone mold in a vacuum chamber. The raw material is mixed, degassed and then poured into the mold. The vacuum is then released and the mold removed from the chamber. Finally, the casting is cured in an oven and the mold removed to release the completed casting.


Why Choose JYH for Vacuum Casting Services?


When it comes to vacuum casting, there are a number of manufacturers to choose from. Choosing the right one is essential for getting exactly the results you expect. Here are several reasons to choose JYH for your vacuum casting needs.

✓ Exceptional Quality and Speed

Quality shouldn’t have to come at the expense of speed, and vice versa. At JYH, we combine our extensive experience with the industry’s latest tools and technologies to deliver high-quality vacuum casting services on short timelines (typically in 7 to 14 days).

✓ Finishing Services to Enhance Your Product

Vacuum casting isn’t all we do. As your one-stop production shop, we also offer a wide range of complementary finishing services to help your product come to life. Our finishing services include machining, media blasting, printing, painting and more.

✓ Intelligent Quotations for Every Project

Your needs are unique — and you don’t want to pay for more than you need. That’s why we never require a minimum order volume or minimum dollar value for our vacuum casting services. We also use state-of-the-art AI quotation algorithms for fast, accurate quotes in 24 hours or fewer for nearly all projects.

✓ Design for Manufacturing Support and Remote Flexibility

As vacuum casting is often used for prototyping, we know that many of the products we work on haven’t reached their final design. To help them get there, we provide detailed design for manufacturing support to our clients. (We can even make your patterns for you.) We also offer detailed video files showing all production steps for clients who can’t visit us in person.



Vacuum Casting Process:

Vacuum Casting Tolerances

The finished dimensions of vacuum cast parts are dependent on the accuracy of the master pattern, the part’s geometry and the type of casting material used. Generally a shrinkage rate of 0.15% is to be expected.

Casting molds are made from liquid silicone. This silicone is poured around the master pattern inside of a casting box, and then allowed to cure in an oven for 16 hours. Once dried, the mold is cut open and the master removed, leaving behind an empty cavity in the exact negative shape of the original.

First the pattern must be carefully prepared, and that means sanding and sealing the surface with primer. Once it’s ready, it’s placed into a casting box and liquid silicone is poured around it. Depending on the size of the part, it can take 12 hours to fully cure inside of an oven. Once dried, the mold is cut open and the master removed, leaving behind an empty cavity in the exact negative shape of the original.

JYH is your best partner of Vacuum Casting Rapid Prototyping And Vacuum Casting Service For Custom Parts!