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Precision Medical Devices

Precision Machining of Aero Engine Turbine Disks

Precision Machining of Aero Engine Turbine Disks – Pre-Machining
Pre-processing
Precision machining of turbine disks for aero-engines - post-machining
Processed
Difficult

Processing challenges

High-temperature alloys exhibit high hardness and cutting forces; thin-walled structures are prone to deformation, requiring IT5 dimensional accuracy.

Solve

Solutions

Utilize dedicated ceramic cutting tools with a high-pressure cooling system, optimize cutting parameters, and design specialized flexible fixtures to minimize clamping deformation.

Fruit

Processed Results

  • • Chamfer turbine blade root fillets to prevent stress concentration.
  • • Remove burrs from internal cooling channels to ensure smooth airflow.
  • • Precision deburring of the tip sealing surface, roughness Ra0.4
  • • Non-destructive machining of superalloys
  • • No surface cracks detected via fluorescent penetrant inspection.
  • • Batch Pass Rate: 99.1%

Technical Specifications

MaterialsNickel-based superalloy Inconel 718
Blade Thickness0.8-2.5mm
Surface RoughnessRa0.4-Ra0.8
Deburring rate≥99.5%
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