WHY INVESTMENT CASTING?
The investment casting process provides reliable process controls and repeatability that are maintained from casting to casting.
WaysCan routinely holds to tolerances of ± .005”. This is not always possible with other types of casting processes.
- Amortization Lowers Tooling Cost
The initial wax injection mold to produce the patterns, averaged over the entire production quantity, is often lower than other casting tooling costs. Quality tooling produces a quality part and will be more cost efficient in the long run.
- Better for the Environment
An investment casting is produced from 9 wax patterns which in most cases can be reclaimed and used again. The wax pattern is a great way to see your part before it is cast, thus eliminating expensive revisions and reducing metal scrap. More importantly, the investment casting process produces parts to net or near net shapes which significantly reduces or eliminates the amount of secondary machining. Most scrap from secondary services like machining can be reused as well.
- Design & Casting Versatility
WaysCan works with over 100 different ferrous and non-ferrous casting alloys. This allows our investment casting process to be used in a variety of industries as it produces a wide range of cast and casting based assemblies. Lost wax castings provide the maximum design flexibility for manufacturing complex, multi part products in many cases.
- Intricate Design
When using investment castings, design engineers can easily incorporate features such as logos, product ID’s/numbers, and letters into their component. Thru holes, slots, blind holes, external and internal splines, gears, and thread profiles can often be cast to reduce secondary machining time and total part cost.
Wayscan Metal Products holds two ways of investment casting: Water-Glass Investment Casting and Silica Sol Investment Casting.
SO WHAT’S WATER-GLASS INVESTMENT CASTING?
Water glass casting (sodium silicate casting) is a technology of Russian origin. Currently it is common used in China. This technology is mostly used for Steel and Alloy steel components. By using this technique, cost can be saved when produce big size parts compared to the silica sol castings(more than 50% lower), but less precise in dimensions (CT7-CT9) and a bit worse surface looking (Ra12.5-RA25).
– Reduction of the cost price, since expensive processing and welding operations are eliminated;
– Cheap moulding process;
– Complex design without draft angles;
– Flexible in production numbers;
– Higher accuracy in comparison to sand casting.