A turbine blade is the individual component which makes up the turbine section of a gas turbine or steam turbine. The blades are responsible for extracting energy from the high temperature, high pressure gas produced by the combustor. The turbine blades are often the limiting component of gas turbines. A turbine disc. The drum or the disc to which the turbine blades are attached. It is forged and then machined with an integral shaft or flange onto which the shaft may be bolted. To limit the effect of heat conduction from the turbine blades to the disc, a flow of cooling air is passed across both sides of each disc.
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