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Illustration of stepwise bronze casting by the lost-wax method. 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.
Dhokra (also spelt Dokra) is non–ferrous metal casting using the lost-wax casting technique. This sort of metal casting has been used in India for over 4,000 years and is still used. One of the earliest known lost wax artifacts is the dancing girl of Mohenjo-daro. [1]
The lost-wax casting technique Robinson developed is a modified version of the bronze casting technique. It involves creating a plaster mould which is filled with molten wax. The mould is then removed (and can be reused) and the wax is encased in a heat-resistant covering and placed in the kiln.
The two bronze sculptures are simply known as “Statue A”, referring to the one portraying a younger warrior, and “Statue B”, indicating the more mature-looking of the two. Both sculptures were made using the lost-wax casting technique. [2]
Passing from the core through the wax and projecting beyond are metal rods. The modelling being completed, called lost-wax casting, the outer covering which will form the mould has to be applied; this is a liquid formed of clay and plaster sufficiently thin to find its way into every detail of the wax model. Further coatings of liquid are ...
Their tradition holds that he taught the Benin metal workers the art of casting bronze using lost-wax techniques during the thirteenth century. [103] These Benin artisans refined that technique until they were able to cast plaques only an eighth-of-an-inch (3 mm) thick, surpassing the art as practiced by Renaissance masters in Europe. [92] [104]
Inlet-outlet cover of a valve for a nuclear power station produced using investment casting. Investment casting is an industrial process based on lost-wax casting, one of the oldest known metal-forming techniques. [1] The term "lost-wax casting" can also refer to modern investment casting processes.
Using the "lost wax" method, MacDonald cast the works of art into bronze. Using an artist method of patina, MacDonald alters the surface color of the final composition. The completed patinated bronze is affixed to a marble base, also designed and selected by the artist as part of the overall sculptural composition. [6] [7]