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Additionally, the sand casting process may require post-casting treatments such as machining or finishing to achieve desired tolerances or surface finishes. These steps can add to production time and cost, so they should be factored into any manufacturing plan.

The process begins with a wax model of the desired part. This model is coated in a ceramic slurry to create a mold. Once the slurry hardens, the wax is melted away, leaving a cavity that is then filled with molten metal. After the metal solidifies, the mold is broken away, revealing a high-precision casting that can be subjected to minimal finishing processes.

The importance of high quality in investment casting cannot be overstated. In industries such as aerospace, where even the most minor defects can lead to catastrophic failures, the stakes are incredibly high. Custom precision casting companies must adhere to strict industry standards and quality control practices. They employ advanced technologies, such as Computer Numerical Control (CNC) machining and non-destructive testing techniques, to ensure that every part manufactured meets or exceeds the required specifications.