Lost foam casting apparatus and method for creating hollow gating

摘要

A method and apparatus is disclosed for forming a metal casting sprue for a lost foam casting process, the sprue formed in sand for receiving molten metal and directing the molten metal to a foam pattern in a mold cavity, wherein the sprue formation is facilitated by an insert having a plurality of apertures formed therein, the apertures facilitating an application of a coating to sand surrounding the insert prior to removal of the insert from the sand, and wherein the sprue facilitates a minimization of production costs and an optimization of material properties of the resultant casting.