3D PRINTING TECHNOLOGY-BASED METAL CASTING MANUFACTURING METHOD

摘要

A 3D printing technology-based metal casting manufacturing method, comprising but not limited to the following steps: (1) employing a 3D printing technology to produce a 3D printed model for a target metal casting; (2) post-polishing processing the 3D printed model; (3) employing a casting process on the processed 3D printed model to produce a shell; and (4) roasting the shell so that the 3D printed model is completely combusted, vaporized, and disappeared, and then casting a molten metal liquid into the shell to produce a metal casting. The method allows convenient implementation of the casting of complex castings, the castings produced has increased dimensional precision, surface smoothness, and casting consistency.