A new way to understand the mechanical characteristics of skiving carbide hob by using a finite-element analysis is presented. First the distribution of the stress and the stain iscalculated by a finite-element method(FEM)code

and the reasons against the hob broken depending on this way are told.The conclusion is obtained by quantitative analysis that themechanical stress of the lattest skiving carbide hob is less than the one of the commonskiving carbide hob when skiving the gears at last.It expresses the design of the lattestskiving carbide hob is stiperior. The way provides scientific basis for using and popularizingthe lattest skiving carbide hob.