FIELD: casting of members of turbine engines from super-alloys with use of investment patterns.
SUBSTANCE: consumable casting core for molding inner cavity of part includes first member of casting core having component of refractory metal and ceramic member of casting core. Ceramic member of casting core may be molded onto first member of casting core or it may be molded together with abutting members that provide joining with first member of casting core.
EFFECT: improved manufacturing process, enhanced strength of casting cores.
26 cl, 15 dwg
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