Turbine disc

Turbine disc machining

Inconel 718


Turbine discs are engine components manufactured from Titanium 64 or heat-resistant high-temperature alloys such as Inconel 718 and Udimet 720. These are complex workpieces with chambers and grooves that are rarely ideally accessible.

For this reason, our aerospace specialists develop individual machining solutions according to the shape of the component. Our focus is on ensuring that implementation of these solutions is cost-effective and reliable – which is where our cutting tools and processes can prove their worth. This enables you to carry out extremely cost-effective production, even under unfavourable conditions.


HSC roughing disc contours

Our solution:
Walter Turn with rigid clamping and ceramic indexable insert

  • Ceramic substrate for machining nickel-based alloys
  • Indexable insert geometry with stable design, adapted for nickel-based alloys

Benefits for you:
Long tool life and high cutting speed when machining nickel-based alloys.


HSC milling of blade grooves

Our solution:
Carbide shank end mill with ceramic cutting head

  • High stability and long tool life
  • Ceramic head fused onto carbide shank
  • Geometry designed for nickel-based alloy
  • Also suitable for plunge milling

Benefits for you:
High stability and a metal removal rate five times higher than for conventional carbide solutions thanks to high cutting speed using "High Speed Cutting" (HSC) parameters.


Contour turning of the disc profile

Our solution:
Walter Cut CaptoTM

  • Tiger·tec® PVD coating
  • Versatility thanks to diverse geometries
  • Special solutions for modules and inserts

Benefits for you:
Flexible grooving system for grooving and parting off, recessing and longitudinal turning – with indexable inserts that guarantee maximum wear resistance and temperature resistance.


Roughing and finish-milling of blade root profiles

Our solution:
Walter Prototyp profile groove milling cutter

  • Milling to closely match the required profile
  • TiAlN coating

Benefits for you:
High precision and customised design in accordance with customer specifications, ensuring that the tool represents the required profile in each case