The experimental research on the workpiece material mechanics properties of gear tooth profile error is discussed.On the basis of the test data and using the least squares criterion
the linear model diagram between tooth profile total deviation Fα and workpiece materials yield limit σs is fit.The results show that
with the increase of yield limit
tooth profile total deviation value also tends to increase.Because of having the positive correlation between the tooth profile deviation and workpiece material yield limit
this phenomenon of the mechanism has practical significance in the actual processing.