shell mold casting

Shell mold casting is a metal casting process that uses a mold made from a mixture of sand and a thermosetting resin binder. This mixture is placed on a heated metal pattern, and the resin hardens, forming a strong mold. Two halves of the mold are assembled, often with cores for hollow parts, and backed with sand for support. This method produces castings with greater dimensional accuracy and a smoother surface finish compared to traditional sand-casting. The process is a variant of sand-casting, a technique where molten metal is poured into a mold cavity to create a solid shape.12