Honing of BEV pinion gears with sophisticated design
09. April 2022
Honing of transmission gears has been one of KADIA's core competencies for many years. A honed bore with high dimensional accuracy and optimum surface finish reduces friction and promotes powertrain efficiency. This is particularly true for battery electric vehicles (BEV). System-related high standards of smooth operation are also required here.
Many of the BEV transmissions, some of which are very compact, contain stepped pinion gears with a sophisticated design. For example, the thin wall thickness at the long neck of the workpiece can lead to elastic deformation during honing and thus to reduced chip removal. KADIA solves this problem
- by a rigid tool design in combination with an optimally balanced cardan honing fixture, which prevents the system from resonating,
- by scanning the complete bore on the honing machine, which allows the bore profile to be fully displayed and honing parameters to be optimally adjusted, and
- by continuous recording and evaluation of the cutting forces, enabling automatic corrections to be made to the process.
The honing machines KADIA has delivered to customers for stepped pinion gears so far have been designed for two- or three-spindle honing processes, depending on the requirements. A video of honing stepped pinion gears with a U line honing machine can be found on YouTube.
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