High Performance Gear Hobbing with powder-metallurgical High-Speed-Steel

In the module range of 1.5 – 4 mm hobbing is still the most productive process for external gears. The trend for green manufacturing and the increasing cost pressures lead to an increase of dry hobbing. To apply dry hobbing, the cutting speed has to be increased compared to wet cutting. This paper shows that dry hobbing with PM-HSS is feasible and economic. Additionally, a method to determine guide values for dry hobbing will be presented.