Casting Basics

Expendable mold casting is any casting process in which the mold is destroyed to get the casting out, so a

The cope is the upper section of a sand mold and the drag is the lower one — the two

Making a mold for metal casting means packing bonded sand around a pattern in two flask halves, cutting the passages

An investment casting shop runs several waxes side by side — pattern, runner, soluble, sticky, repair and dipping — and

Investment casting works with almost any alloy that can be melted and poured, and in industrial practice the choice narrows

Casting metal means melting an alloy, pouring it into a cavity shaped like the part, and letting it freeze —

Casting processes divide by the mold and by what drives the metal into it. The mold is either expendable —

Investment casting is a process in which a ceramic shell is built up in layers around a disposable wax pattern,

Resin sand casting is sand casting in a mold bonded by a synthetic resin that hardens through a chemical reaction,