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Lost-wax casting – also called investment casting, precision casting, or cire perdue (French: [siʁ pɛʁdy]; borrowed from French) [1] – is the process by which a duplicate sculpture (often a metal, such as silver, gold, brass, or bronze) is cast from an original sculpture. Intricate works can be achieved by this method.
Students of bronze casting will usually work in direct wax, where the model is made in wax, possibly formed over a core, or with a core cast in place, if the piece is to be hollow. If no mould is made and the casting process fails, the artwork will also be lost.
Lost-wax casting of bronze was achieved in three different ways, each with its own desired effects. The first and earliest method was solid casting, which required a model of the sculpture to be fashioned in solid wax and then carved. The second method was hollow lost-wax casting, which was created by a
Much of the wax used in investment casting can be reclaimed and reused. [2] Lost-foam casting is a modern form of investment casting that eliminates certain steps in the process. Investment casting is so named because the process invests (surrounds) the pattern with refractory material to make a mould, and a molten substance is cast into the ...
Bronze casting using the lost wax method. The molten metal is poured into the mould. Although the works generally are called the Benin Bronzes, they are made of different materials. Some are made of brass, which analysis has shown to be an alloy of copper, zinc and lead in various proportions. [20]
Dancing Girl is a prehistoric bronze sculpture made in lost-wax casting about c. 2300 –1751 BC in the Indus Valley civilisation city of Mohenjo-daro (in modern-day Pakistan), [1] which was one of the earliest cities. The statue is 10.5 centimetres (4.1 in) tall, and depicts a nude young woman or girl with stylized ornaments, standing in a ...
Roman Bronze Works, now operated as Roman Bronze Studios, is a bronze foundry in New York City.Established in 1897 by Riccardo Bertelli, it was the first American foundry to specialize in the lost-wax casting method, [1] and was the country's pre-eminent art foundry during the American Renaissance (ca. 1876–1917).
Solid casting does not use a clay core but instead a solid piece of wax to create the mould; hollow casting is the more traditional method and uses the clay core. [1] The first task in the lost wax hollow casting process consists of developing a clay core which is roughly the shape of the final cast image.
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