Door frame area

Door frame area machining


Door frame areas refer to areas in the aircraft fuselage that surround cargo doors and passenger doors. These components are important for safety, and must compensate for the structural weaknesses created as a result of openings in the aircraft fuselage.

For this reason, these frames not only need to be precisely manufactured, but also must not warp, even under heavy load. They are therefore mainly made of titanium. In order to prevent crack propagation, the titanium is beta-annealed, which significantly increases tool wear. The frames are also designed with lengths of up to 4 m and incorporate reinforcement bars, requiring high machining volumes in order to machine, without causing the component to warp. The primary focus is therefore on process reliability.

Dynamic milling of titanium structures (High Performance Cutting)

Our solution:
Ti40 high-performance milling cutter

  • Solid carbide tool for full slotting, dynamic milling, semi-finishing and finishing operations
  • All-rounder with five cutting edges
  • Microgeometry with cylindrical stabilising land
  • New PVD coating technology

Benefits for you:
Higher productivity for roughing, semi-finishing, finishing and dynamic high-feed milling. 50% longer tool life compared to the previous aluminium chromium nitride solution.

Finishing pocket bases and walls (High Performance Cutting)

Our solution:
Ti45 high-performance milling cutter

  • New PVD coating technology
  • Long reach for machining deep pockets
  • Finishing with close pitch options

Benefits for you:
Short machining times when finishing with the highest possible tool life thanks to new PVD coating. 50% longer tool life compared to the previous aluminium chromium nitride solution.

Drilling CFRP rivet holes (carbon fibre reinforced plastic)

Our solution:
Walter Titex AF1D twist drill

  • Self-centring AF1D geometry
  • Diamond coating for a long tool life
  • Specially designed for carbon fibre composite materials
  • Usable in CNC systems and automatic drilling units

Benefits for you:
Perfect for drilling in unidirectional and multidirectional carbon fibre composite materials. Even with automatic drilling units, the geometry provides excellent roundness and dimensional accuracy.

Drilling stacks

Our solution:
Walter Titex AFT4A solid carbide drill

  • Designed for automatic drilling units and CNC systems
  • Stable design with large coolant-throughs
  • Smooth, heat-resistant aluminium chromium nitride coating

Benefits for you:
Specially developed for use with automatic drilling units. Polished flutes and the heat-resistant aluminium chromium nitride (ACN) coating ensure optimal chip evacuation.