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Machining the fan case

Titanium: maximum rigidity and uncompromising safety

 

The challenges involved in the machining of the ring-shaped fan cases, which form the casing for the largest turbine blades of the entire engine, are enormous. Maximum rigidity and uncompromising safety are the number one priority, which is why fan cases are made from titanium, among other materials.

If you want to achieve process security and productivity combined with efficiency and high surface quality, you will find high-performance options in the CERATIZIT tool range.

1. RCMT 1606MOTN-24 H216T indexable insert

Finishing and semi-finishing of the internal and external contours of titanium casings with RCMT button inserts

  • Specially adapted '-24' geometry for the copy turning of titanium
  • Uncoated fine grain grade H216T
  • High temperature and wear resistance

2. WTX-Ti solid carbide drill

Drilling of heat-resistant alloys

  • Improved geometry and core diameter for maximum process security
  • Unique performance due to the new high-end double coating system
  • Stabilisation chamfer on the cutting edge for greater tool stability

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3. MonoThread - SGF thread milling cutter for next-level performance

Shank thread milling cutter for material-friendly thread production

  • For universal applications
  • Available in a wide range of thread types (M / MF / G / NPT / UNC / UNF / UNJC / UNJF)
  • Optimum core rounding and tapering for high dimensional accuracy
  • Thro’ coolant for a long service life
  • Ideal for asymmetrical, thin-walled or complex components

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4. 3D-printed MaxiMill - 211-DC shoulder milling system with DirectCooling

The ideal nozzle position for decisive added value when machining heat-resistant materials

  • Maximum process security and tool life despite high cutting speed
  • Plate geometry precisely tailored for cooling, for full-coverage wetting with the coolant on the cutting surface
  • For reliable machining in titanium and super alloys as well as nickel-based alloys

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Practical example of an RCMT button insert

Aircraft engine housing

  • Indexable insert: RCMT 1606MOTN-24 H216T
  • Material: premachined TiAl6V4, Ø3000 mm
  • External and internal copy turning, grooving
  • Finishing and pre-finishing
  • High pressure cooling (150 bar)
Cutting data CERATIZIT Competitor
Vc [m/min] 80 70
n [rpm] 8.5 6.8
f [mm/rev] 0.52 0.42
ap [mm] 3.5 3.5
Emulsion Yes Yes
Q [cm3/min] 145 94
Tool life [min] 52 min  
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