The selection of gear hobbing cutting speed should consider the tool material and appropriate coating, the modulus of the processed gear, the material of the processed gear and its heat treatment conditions.
Use drawing No. H5 in Harbin gearbox factory 207 / 330 gear hob (module 4, pressure angle 22.5 degrees, 3 heads, 12 grooves). On the yk3180 gear hobbing machine produced by Chongqing machine tool factory, the temperature of the tool edge is tested by infrared thermometer. The curve is obtained under the condition that the ambient temperature and other processing conditions are stable. As shown in the figure, within a certain range, the temperature of the tool edge increases with the increase of chip thickness and cutting speed.