How are advances in technology improving precision in investment casting?

Digital Design and Simulation

Modern investment casting has evolved into a digitally controlled process. Through CAD/CAM integration and casting simulation software, manufacturers can precisely predict metal flow, solidification, and shrinkage behavior before physical production. This eliminates trial-and-error, allowing for precise control of gating, venting, and cooling. At Neway Precision, advanced simulation ensures dimensional accuracy for components made from complex alloys such as nickel-based alloys and cast stainless steel.

Additive Manufacturing for Tooling and Patterns

The integration of 3D printing prototyping has revolutionized pattern production. Wax or resin patterns produced with additive manufacturing offer unmatched accuracy, smooth surface finish, and rapid turnaround. This approach reduces tooling costs and enables the creation of geometries that are impossible with conventional molding. High-temperature-resistant patterns are particularly valuable for producing cast titanium and superalloy components used in aerospace and energy applications.

Enhanced Process Monitoring and Automation

Advancements in real-time monitoring, such as laser scanning and infrared temperature control, allow continuous supervision during shell firing and metal pouring. Automated wax injection, robotic shell building, and smart furnaces ensure uniform mold thickness and repeatable results. These systems, combined with digital SPC (Statistical Process Control), greatly improve reproducibility and reduce tolerance deviation.

Precision Finishing and Inspection

For critical applications, post-casting finishing now leverages CNC machining, prototyping, and automated polishing systems to achieve sub-0.02 mm accuracy. Dimensional inspection, conducted through 3D laser scanning and coordinate measuring machines (CMMs), confirms compliance with aerospace and automotive standards. Surface treatments such as anodizing, PVD coating, and electropolishing further enhance finish uniformity and part longevity.