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Dimensional Tolerance Assessment Using 3D Printed Sand Casting Process

By Jiten Shah

December 12, 2023

The use of 3D printed sand (3DPS) casting process is growing in the production environment, and the initial feedback is comparable to the precise sand casting processes. The adoption of the 3DPS is seen mainly with the hybrid approach, where the mold is made with the conventional green sand process and the complex core assembly is redesigned with a three-piece consolidated core using 3DPS. Very little is studied and known in the public domain about the dimensional tolerances achieved with this toolingless precision sand casting process, especially the potential of achieving much better true position and internal feature tolerances.