Manufacturing
What is Lost-wax casting?
Also known as: Cire perdue, Investment casting
Definition
Lost-wax casting is the manufacturing technique used for almost all fine jewellery. A wax model of the piece is embedded in a plaster investment mould, the wax is melted out (hence 'lost'), and molten metal is poured into the resulting cavity. When the plaster is broken away, the metal piece emerges. Facetra's CAD kit includes wall-thickness recommendations specifically for lost-wax casting (0.6–0.8mm minimum) so the CAD bench builds a printable master.
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