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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. Investment casting has been used in various forms for the last 5,000 years.
Contents. Lost-wax casting. 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 ...
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 artefacts is the dancing girl of Mohenjo-daro. [ 1 ] The product of dhokra artisans are in great demand in domestic and ...
Lost-foam casting is a type of evaporative-pattern casting process that is similar to investment casting except foam is used for the pattern instead of wax. This process takes advantage of the low boiling point of foam to simplify the investment casting process by removing the need to melt the wax out of the mold.
Pattern (casting) The top and bottom halves of a sand casting mould showing the cavity prepared by patterns. Cores to accommodate holes can be seen in the bottom half of the mould, which is called the drag. The top half of the mould is called the cope. In casting, a pattern is a replica of the object to be cast, used to form the sand mould ...
The metal pieces were made using lost-wax casting and are considered among the best sculptures made using this technique. [21] Benin began to trade ivory, pepper, and slaves [ 22 ] with the Portuguese in the late 15th century and incorporate the use of manillas (brass ingots in the form of bracelets, bought from the Portuguese) as a metal ...
Production of wax master patterns for mold making and investment casting applications. Production of small parts and assemblies that require high precision and castability. Applications such as jewelry and watch-making, personal consumer electronics, toys, automotive, aerospace, bio-medical, and dental restorations.
To create their gold pieces, the Muisca used a method called lost-wax casting. [1] The manufacturing process itself was likely part of the ritual associated with these tunjos. [39] The process began when the Muisca craftsperson created a wax model in the desired shape of the object, using beeswax harvested from the region. [40]
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