Machining the turbine blade

1. MaxiMill 271 – face milling cutter – 45° positioning

Mill scale removal

  • Sturdy base body design for high loads
  • Cutting depth up to 8.4 mm
  • 8 usable cutting edges per indexable insert
  • Double-sided negative insert with integrated clearance angle for reduced cutting forces and smooth cutting

2. MaxiMill 273 – face milling cutter – 43° positioning

Rhombus roughing

  • High process security → even for unmanned production
  • Cutting depth up to 3.5 mm
  • 16 cutting edges per indexable insert
  • Masterfinish geometry → for outstanding surface quality

3. MaxiMill HFC-TUR – high-feed milling cutter

Blade roughing

  • Larger setting angle than on the regular HFC → higher ap possible
  • Combination of HFC and button insert
  • Large chip spaces → excellent chip evacuation
  • Ideal for blade roughing using any strategy

4. MaxiMill 261 / 262 – button insert milling cutter

Blade roughing with ceramics

  • Maximum productivity → cutting speed over 10x higher can be
  • achieved compared with solid carbide
  • Significantly reduced machining time for roughing
  • Positive indexable insert for machining using a variety of different milling strategies
  • SiAlON CTIS710 ceramic grade for milling nickel-based alloys

Info: Milling system with negative ceramic button inserts → MaxiMill 262

5. MaxiMill 251 – button insert milling cutter

Blade pre-finishing with carbide button inserts

  • Can be used for various roughing strategies
  • Stable, soft-cutting indexable insert
  • Positive installation position of the indexable insert
    - Less cutting pressure
    - Lower cutting forces
    - Unstable components
  • Perfect for multiaxial machining

6. MultiLock exchangeable head system

Blade finishing

  • Cost-effective, unbeatable price-performance ratio
  • Patented simple and intelligent Trigon interface
  • Closes the gap between indexable insert- and solid carbide milling cutters
  • No regrinding logistics required
  • Extensive range for further applications 

7. MaxiMill 252 – button insert milling cutter

Blade root & head roughing

  • Double-sided negative button insert
  • 8 cutting edges per indexable insert
  • Simple indexing system
  • Irregular pitch for smooth cutting

8. MaxiMill 274 – face milling cutter

Blade root & head finishing

  • Extremely positive installation position of the indexable insert → low cutting forces, even in difficult-to-machine materials
  • Cutting depth up to 6 mm
  • 4- or 8-edged indexable insert for the same insert seat
  • Irregular pitch for smooth cutting

9. MaxiMill 211 – shoulder milling system

Milling root slot & transitions

  • Extensive range for every application
  • Reliable and smooth cut thanks to the special cutting edge shape, particularly for plunge milling
  • Irregular pitch for smooth cutting

10. Special carbide milling cutter

Milling root slot & transitions

  • For machining radii and slots
  • Roughing & finishing
  • Optimised carbide grades and high-performance coatings for the perfect machining of a wide variety of materials
  • Productivity & process security → geometry adapted to your application,   irregular pitch and irregular pitch of the helix

Application example: blade roughing with ceramics (4)

  • Component: turbine blade
  • Material: Nimonic 80A
  • Tool: G261.32.R.03-1204
  • Indexable insert: RPGN 120400EN CTIS710
  • Machining: heli-roughing

 

Parameter Competitor CERATIZIT
Vc (m/min) 1000 1000
fz (mm/tooth) 0.1 0.1
Vf (mm/min) 2984 2984
ap (mm) 3 3
ae (mm) varies varies
Emulsion without without
Service life (min) 5.5 8