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Turbine blade

Turbine blade

Difficult-to-cut materials


Turbine blades are exposed to extreme thermal and physical loads: A turbine blade at full load can reach speeds of up to 500 m/s. This corresponds to a centripetal acceleration of 160,000 m/s2 with centrifugal forces of around 550 tonnes.

Only difficult-to-cut materials such as Inconel or similar high-temperature alloys are capable of withstanding such forces. Complex blade profiles are an additional challenge. Our consistent tool solutions ensure that your tool change and chip-to-chip times can be reduced to a minimum while still maintaining extremely high quality

Roughing the blade root, turbine blade and blade head

Our solution:
F2334R round insert milling cutter

  • Optimised insert seat design
  • Reinforced tool adaptor
  • Direct coolant supply to the cutting edge
  • Four cutting edges per indexable insert
  • Insert sizes: RO.X 10T3.. or RO.X.1204..

Benefits for you:
Long tool life thanks to new indexable insert grades.

Finishing the turbine blade

Our solution:
Prototyp Protostar N50 multi-flute

  • Modular milling system thanks to the ConeFit adaptor
  • 50° helix angle for a soft cutting action
  • TAX coating for high feed rates and cutting speeds

Benefits for you:
Significantly shorter machining times and excellent cutting properties in difficult-to-cut materials.

Semi-finishing and finishing of thin-walled, forged blades

Our solution:
Walter BLAXX F5041/5141

  • Tangential indexable inserts with four cutting edges at a 90° angle
  • Special surface treatment of the body for a high level of wear resistance
  • Real high-performance cutting (HPC) for blade machining
  • Semi-finish machining with large depths of cut (up to 9 mm) while also ensuring high feed rates
  • Powered by Tiger·tec® Silver

Benefits for you:
Large depth of cut and high feed rates reduce the machining time by up to 40%. Axial forces and vibrations are practically eliminated through smaller corner radii

Finishing the transition radius and platform

Our solution:
Walter Prototyp conical ball-nose copy milling cutters

  • Variable inclination angle: From 1° up to max. 30°
  • Two to four teeth – with or without chip breaker/knurled profile
  • Radius of 0.5–8 mm
  • Substrate, geometry, pre-treatment and coating are ideally matched to the application and material
  • Reduced delivery time with Walter Xpress

Benefits for you:
Long tool life and excellent surface quality on the component.