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Forming and removing mold or core during casting, e.g. of filigree structures, by forming mold or core containing hollow particles, to be collapsed under pressure after casting
Forming and removing mold or core during casting, e.g. of filigree structures, by forming mold or core containing hollow particles, to be collapsed under pressure after casting
A method for forming and removing a mold and/or core during a casting process involves: (a) producing the mold and/or core from a mass containing hollow particles; (b) after the casting has solidified, exposing the mold and/or core to pressure to destroy at least some of the particles and thus collapse the mold or/or core; and (c) removing the mold and/or core residues from the casting.
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