FIELD: metallurgy.
SUBSTANCE: method includes placing a destructible rod (20) which comprises a base (22) made of a filler, a shell (40) attached thereto, and a frame 36 extending through the base and connected to the shell, inside the mould (50). The metal is melted, which under the pressure is pumped into the mould (50) surrounding the rod (20) forming the internal space of the part. After the part has cured, the base is ground and removed through the openings provided in the shell and in the part, the shell is destroyed and removed through the holes provided in the part.
EFFECT: high mechanical strength of shell.
10 cl, 5 dwg
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