Overview
Investment casting, also known as lost wax or shell casting, is a centuries-old process that transforms molten metal into complex, high-precision parts using wax or plastic patterns. Traditionally time-consuming and expensive, this process is now faster, more cost-effective, and capable of handling intricate designs thanks to 3D printing technology. By replacing traditional wax & plastic patterns with 3D printed patterns, manufacturers can produce complex geometries overnight while maintaining exceptional accuracy and surface finish.
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FAQ
3D printed patterns are used to replace conventional tooling or patterns, enabling rapid, cost-efficient casting preparation
Benefits include reduced tooling cost, shorter pattern lead times (often 24-48 h), and ability to create complex geometries not possible traditionally
SLA and castable plastic/resin printers are common for producing lightweight, accurate, burn-out patterns for foundry use.
Consider dimensional stability, burnout behavior (low ash/residue), pattern strength, surface finish and compatibility with existing shelling/casting process.
Yes — for small batches, prototypes or complex cast parts, digital patterns via 3D printing present a strong alternative to expensive tooling.