Precision Casting Technology & Gas Turbines
Precision Casting Overview
Turbine blades and vanes (aerofoils) are directly exposed to gases burning at 1,400 to 1,500 degrees Celcius, higher than the melting point of the materials from which they are made (approximately 1,200 degrees Celcius).
Intricate cooling channels within the aerofoils allow the heat to dissipate, thereby enabling them to withstand such extreme temperatures.
Nickel and cobalt based super alloys are currently used for aerofoil production. Detailed design and tight dimensional tolerances, plus the inherent costs in machining nickel based gas turbine parts, make precision casting the ideal manufacturing process.
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