Precision CNC Machining of HPT and LPT Vanes for the Gas Turbine Industry

Hi-Tek manufactured these high and low pressure turbine vanes for use in gas turbine assemblies. Produced in sets they are used for aircraft and land based turbines and vary in size from 4" to 24" in length, 2" to 8" in width, and 3" to 6" in height.

Manufacturing processes include radial grinding of the forward and aft ends, milling of the vane ends, as well as milling the hooks, scallops, and tapped holes. The cooling holes were drilled by a fast-hole EDM, sinker EDM, and Laser. TIG and laser welding was utilized on the assembly details and the electrodes were stamped in house for EDM hole drilling. The Grinding and Milled features were inspected with CNC CMM equipment and the cooling holes were CNC Optically inspected along with Airflow verification. These components were also grit blasted, tumble deburred, vapor degreased, and cleaned.

At Hi-Tek Manufacturing we take quality seriously, we're ISO 9001:2008 - AS 9100 Rev C certified and NADCAP accredited for NDT & Non-Conventional Machining. Since 1980, Hi-Tek has manufactured well over 600,000 of these parts. Hi-Tek has among the best quality ratings in the market, utilizing airflow testing, CNC optical inspection, radiographic inspection (X-Ray), fluorescent penetrant inspection (FPI), coordinate measuring machine (CMM), as well as hard gaging.

To learn more about all of our precision CNC machining capabilities, contact us directly.

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Highlights of these Precision CNC Machining processes for HPT & LPT VANES

Product Description
These HPT (High Pressure Turbine) and LPT (Low Pressure Turbine) Vanes are part of small and large turbine assemblies.
Capabilities Applied/Processes
Radial Grind FWD & AFT Ends
Mill Vane Ends
Mill Hooks, Scallops, & Tap Holes
EDM Seal Slots
Fast Hole EDM Cooling Holes (Round or Shaped)
Sinker EDM Cooling Holes (Round or Shaped)
Laser Drill Cooling Holes (Round)
TIG Weld or Laser Weld Assembly Details
Electrode Stamping for EDM Hole Drilling
Grit Blast
Deburr or Tumble
Vapor Degrease & Clean
Part Mark
Equipment Used to Manufacture Parts
5-Axis CBN Grinder
5-Axis Horizontal & Vertical Milling Center
6-Axis Fast-Hole EDM
3, 4, or 5-Axis Plunge/Sinker EDM
5-Axis YAG Laser
Hi-Tek Designed and Built Tooling & Fixtures for all processes
Material Used
High Temperature Super Alloys
In Process Testing/Inspection Performed
Airflow Testing
CNC Optical Inspection
Radiographic Inspection (X-Ray)
Fluorescent Penetrant Inspection (FPI)
Coordinate Measuring Machine (CMM) Hard Gaging
Industry for Use
Aircraft Turbines - Commercial & Military
Small Land Based Turbines - 1MW - 49 MW
Large Land Based Turbines - 50MW to > than 250MW
600,000 since 1980
Delivery/Turnaround Time
Product ships in Engine sets - depending on set size and work scope: 4-8 weeks after receipt of order and material.
Delivery Location
FOB origin
Standards Met
ISO 9001:2008
AS 9100 Rev C
AC7116 Non-conventional Machining
AC7114 Non Destructive Testing

Customer Supplied Design & Prints:
Drawing Formats - Unigraphics (PRT), STEP, IGES
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