What did Lost-Wax Casting (Cire Perdue) look like?

A beeswax model of the object is carved → coated with multiple layers of fine clay to form the mold → heated to melt out the wax → molten bronze poured in to fill the cavity → cooled and the outer mold broken away to retrieve the casting.

How did Lost-Wax Casting (Cire Perdue) work?

Wax model → clay shell application → bake to remove wax → obtain hollow cavity → pour molten metal → cool and solidify → break shell and remove casting → finish.

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Lost-Wax Casting (Cire Perdue)

Investment (lost-wax) precision casting capable of producing multi-layered openwork bronze vessels. Europe did not fully recover this technique until the 19th century.

商周失蜡

Scientific Principle

Investment casting (lost-wax): the wax model melts out to form the mold cavity. Thermal expansion compensation.

商周失蜡法铸造

Lost-Wax Casting (Cire Perdue)

Scientific Principle

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