Electric axle drive housing

 Aluminium

Their low weight, combined with outputs of up to 120 kW and torques of up to 2000 Nm, requires very high precision in the manufacture of large and thin-walled drive housings.

To manufacture fits up to IT6, including the required geometrical accuracies and interrupted cuts in some instances, tools are needed that are exceptionally precise and create as little cutting force as possible. Requirements that make Walter pad-guided reamers the ideal tools for the job.


Preparing the coil bore for the electric motor

Solution:

Walter PCD reamer with brazed cutting edges in a lightweight design

  • ► Roughing geometry with 8 cutting edges
  • ► Tool with a disc design to save weight
  • ► Hollow basic body in a tubular design for high stability and vibration damping with a low weight

Coil bore finish machining for the electric motor

Solution:

Walter reamer as a multiple-edged solution

  • ► 6 changeable PCD cutting edges
  • ► Cutting edge adjustment possible with µm precision
  • ► PCD guide pads

Bearing seat and cover bore finish machining

Solution:

Walter reamer as a single-edged solution

  • ► Changeable PCD cutting edge
  • ► Cutting edge adjustment possible with µm precision
  • ► PCD guide pads

Preparation of the bearing seat and circular interpolation for grooves and relief grooves

Solution:

Walter PCD combination tool for preboring and milling

  • ►  Brazed PCD cutting edges
  • ►  Various relief grooves with one tool
  • ►  Changeable milling insert
  • ►  Modular design