The production of steel castings is dominated by room temperature molds, primarily in sand mold cavity-making processes.  Castability Geometry for those mold types has been well-defined in episodes 3, 4, and 5.  However, a very significant sub-set of steel castings are poured in hot ceramic shell investment molds.  This episode 6 addresses the differences in OEM Castability Geometry choices in design AND producer manufacturing engineering principles for the three steel alloy sub-groups… when produced as investment castings in hot molds.  

Steel casting producers in the hot ceramic shell process typically pour a wide variety of ferrous alloys.  Process-Dominated Castability Geometry explains why.  Design and manufacturing engineering principles for hot ceramic shell molds are illustrated in models and simulations.