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Investment casting
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Investment casting



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Investment casting is also known as the lost wax process. This process is one of the oldest manufacturing processes invented by the Egyptians in about 5,000 years ago. Intricate shapes can be made with high accuracy. In addition, metals that are hard to machine or fabricate are good candidates for this process. It can be used to make parts that cannot be produced by normal manufacturing techniques, such as turbine blades that have complex shapes, or airplane parts that have to withstand high temperature.

The types of materials that can cast are aluminum alloys, bronzes, tool steels, stainless steel, satellite, haste alloys, and precious metals. Parts made with investment castings often do not require any further.