Turbine Engine Fast Hole EDM Drilling

EDM Manufacturing Intelligence and Advanced Metrology Expertise Creates High-Quality Cooling Holes

EDM Department offers advanced capabilities for EDM drilling of cooling holes in various Aero-Engine and Gas Turbine Engine components. 5-axis high speed, fast-hole drilling machines matched with customized advanced metrology equipment gives us the ability to drill high quality shaped, round and straight cooling holes for our customers.

Demand for increasingly complex-shaped cooling holes with tighter tolerances and accuracies has risen due to improved engine performance levels and efficiencies required in the new generation of aero-engines and land-based gas turbine engines (IGT). We offer a unique combination of EDM manufacturing intelligence and metrology to create straight holes and shaped holes with diffuser shapes that blend seamlessly into the complex 3D shape of the blade and vane components, all in a single EDM process.

Diffuser shapes often vary, but are typically in the range of 0.060” (1.50mm) by 0.032” (0.80mm) and 0.040” (1.00mm) deep with a 0.020” (0.50mm) through hole. EDM Department’s fast hole EDM drilling machines can also produce holes as small as 0.04mm, allowing our customers to employ ever smaller holes in their new turbine component designs.

The coupling of advanced manufacturing techniques and metrology gives our customers the ability to design complex shapes with the confidence that they can be manufactured accurately and efficiently. Our metrology systems offer non-destructive testing that automatically verifies hole presence, location, shape, surface roughness, breakthrough and back wall penetration (back-strike) detection directly in the EDM drilling machine as well as near the manufacturing process. Inspection of each hole can be automatically stored as statistical datasets or full 3D point cloud models for full traceability and verification by both EDM Department’s customer and the end user.

Contact us today to learn more about our 5-axis, high speed, fast-hole EDM drilling services for aero-engine and land-based gas turbine engine components as well as other applications of fast-hole EDM drilling like fuel injector nozzles, surgical tooling, medical implants and medicine delivery systems.

Common Aero-Engine and Gas Turbine Engine Components

  • High Pressure Turbine (HPT) Blades (Rotor)
  • Low Pressure Turbine (LPT) Blades (Stator)
  • Vanes
  • Discs
  • Nozzles
  • Heat Shields
  • Fairings
  • Shrouds
  • Rings
  • Tubes
  • Casings
  • Liners