Turbine Blade Cooling Holes Drilling

The High Pressure Stage Turbine Blades and Vanes Having fine Colling Holes to produce film cooling on the aerofoil surface. Holes are oriented in compound angle and having very very fine sizes with tight tolerances. These holes can be manufactured sucessfully by using Laser Drilling or EDM drilling techniques.The Electron Beam method is one of the upcoming technique.

Cooling Techniques of Turbine blades

Convection Colling Techniques , Film cooling, Impengement Tube Cooling etc.
Making film cooling holes on the aerofoil surface is a real challenge . which demanding 3 plus axis control. the size and orientation will play a vital role in fluid flow .

Advanced Methods

The cucessful Latest Techniques for turbine componets are Investment Casting,non conventional machining (EDM,ECM, LASER),TBC coatings, EB welding etc.

AeroEngine

Turbine Engine is a prime mover to aircrafts. Which required advanced materials, processes and methods for manufacture .