Investigating on casting mold (or core) making with coated sand by the selected laser sintering

摘要

1 .Introduction Based on the parameters and cross-section’s information from a CAD model, the selected laser sintering (SLS) uses a laser beam to sinter selectively powdered solid materials (plastic, wax, ceramic, metal, etc.), and the solidified material is built up layer by layer to formthepart needed} As there are still some problems in material and technology, it is difficulty to sinter or produce