Lost Foam Casting, Lost Wax Casting

Lost Foam Casting (LFC) is a type of metal casting process that uses foam patterns to produce castings.  Lost foam casting uses a cavityless mold with the pattern remaining in the mold during metal pouring.  Lost foam casting or (LFC) is a type of metal casting process that uses expendable foam patterns to produce castings. Lost foam casting utilises a foam pattern which remains in the mould during metal pouring. The foam pattern is replaced by molten metal, producing the casting. The method takes advantage of the properties of foam to simply and inexpensively create castings that would be difficult to achieve using other casting techniques.Weldments and complex casting assemblies can be made using this near net shape casting process. Similar to lost wax investment casting, the process uses a single ceramic coat for process step reduction. This is a value added casting method, which reduces finish machining and increases foundry yield for overall project cost advantages. Lost foam casting allows for the casting of parts that would otherwise be difficult to achieve in metal casting.