For burnishing pinion gears for automatic transmissions. Removes or reduces nicks, burrs, and heat-treat scale while improving surface finish. Used instead of honing and finish grinding when the process calls only for nick or burr removal. Ideally suited for pinion gears to remove burrs from the chamfering operation.
Gears are moved through the machine in the rolling axis and drop into the burnishing area. Gears are captured between three burnishing dies and rolled with a set amount of pressure. This machine uses oscillation and coolant in the process.
Process improvement, long tool life (500,000 – 750,000 cycles).