Investment casting process and mould.

摘要

In the investment casting of hollow parts in a shell mould or in a block mould a slender core (2) is supported by means of chaplets (7) in an outer mould part (1). The chaplets are made of expanded metal and are preferably bent to form a 'C', 'V' or 'U' shaped cross section. This form of chaplet provides for good support whilst promoting diffusion thereof during the casting of the molten metal in the mould.