Metal founding – Process – Shaping a forming surface
Patent
1994-08-19
1996-04-09
Lin, Kuang Y.
Metal founding
Process
Shaping a forming surface
1641221, 164 32, 164361, 164398, B22C 910
Patent
active
055052509
ABSTRACT:
In an investment casting process including the known steps of injecting a molten wax into a die, allowing the wax to solidify, removing the die, investing the wax with ceramic, firing the ceramic and removing the wax so as to provide a ceramic mould, and casting a molten material into the mould, and apparatus including a ceramic core the shape and size of the cavity to be provided in the blade, a removable wax impression die surrounding and spaced from the core member so that the space between the die and the core member is the shape and size of the blade, there is provided a number of platinum chaplets adapted and arranged to support and locate the core in relation to the ceramic mould by point contact abutment with an adjacent mould surface.
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Lin Kuang Y.
Rolls-Royce plc
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