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History
Investment casting
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Investment casting is an industrial process based on lost-wax casting, one of the oldest known metal-forming techniques. The term "lost-wax casting" can also refer to modern investment casting processes.
A wax pattern used to create a jet engine turbine blade
A wax pattern used to create a jet engine turbine blade
Unveiling the titanium integral space bus satellite by Planetary Resources in February 2014. The sacrificial mould for the investment casting was 3D-p
Unveiling the titanium integral space bus satellite by Planetary Resources in February 2014. The sacrificial mould for the investment casting was 3D-printed with integral cable routing and toroidal propellant tank. From left: Peter Diamandis, Chris Lewicki, and Steve Jurvetson.
Lost-wax casting
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Lost-wax casting – also called investment casting, precision casting, or cire perdue – is the process by which a duplicate sculpture is cast from an original sculpture. Intricate works can be achieved by this method.
On the left is an example of a rubber mould, often used in the lost-wax process, and on the right is the finished bronze sculpture.
On the left is an example of a rubber mould, often used in the lost-wax process, and on the right is the finished bronze sculpture.
Step 1: A model of an apple in wax
Step 1: A model of an apple in wax
Step 2: From the model a rubber mould is made. (The mould is shown here with a solid cast in plaster)
Step 2: From the model a rubber mould is made. (The mould is shown here with a solid cast in plaster)
Step 3: From this rubber mould a hollow wax or paraffin cast is made
Step 3: From this rubber mould a hollow wax or paraffin cast is made