Wing rib

Aluminium

The wing ribs are structural components within the wing. Together with the longerons, they form the frame for the wing skin. Wing ribs are predominantly manufactured from wrought aluminium alloys.

These are light, have a high load-bearing capacity and are extremely robust. This applies in particular for new generations such as the 2050 aluminium-lithium alloy. In order to enable this alloy to be machined successfully, the machine, tool, processes and milling strategies must be designed to perfectly suit the workpiece and the alloy. Walter high-performance solutions for HPC and HSM aluminium machining meet the highest requirements for quality and process reliability, whether working with indexable insert tools, carbide tools or PCD tools.


HPC pocket and base finishing

Solution:

Walter Prototyp HPC Al30 close pitch cutter

  • ► Microgeometry of the centre cutting edge ensures low axial cutting forces
  • ►  Vibration-free thanks to the microgeometry of the secondary cutting edge
  • ►  Internal coolant for MQL
  • ►  Constant helix angle

HPC rough milling of pocket structures

Solution:

Walter Prototyp MB 265 Supreme

  • ► WJ30UU grade (uncoated)
  • ► WJ30CA grade (CrN-coated)
  • ► Internal coolant for emulsion or MQL
  • ► Al-RAPAX G30 geometry for maximum metal removal rate
  • ► Centre cutting edge for reliable roughing

HPC rough/finish-milling of pocket structures

Solution:

Walter Prototyp MB 266 Supreme

  • ► WJ30UU grade (uncoated)
  • ► Internal coolant for emulsion/MQL
  • ► Al 30 geometry for finishing and maximum metal removal rate
  • ► Centre cutting edge for reliable roughing

Wall finishing machining

Solution:

Walter Prototyp HPC Al38

  • ►  Four cutting edges – differential pitch for wall finishing operations
  • ►  Transition radius on the circumference
  • ► Optimised cutting edge microgeometry
  • ►  Internal coolant supply – also suitable for MQL