CONSIDERATIONS ON SHAVERS TEETH DEFORMATION

The precision of a gear tooth processed by shaving depends greatly on the dynamic stress of the shaver teeth and of the gear that are to be worked on. Following the shaver stress modelling, for example, its tooth deformation is determined by using the following approximations: the tooth is considered as a beam embedded in the shaver body; the tooth section is variable by an arc and an involute, the involute being approximated by a parabolic spline function. The size that characterizes the profile deviation of the shaver tooth (the variable amount of distortions, extreme value), given the complex stress of its body and targeted purpose, is calculated with: s r x x r S x x r S Y Y Y Y Y (1) Considering the shaver tooth as a beam embedded in its body (see Figure 1), with variable section (the section is variable by an arc and an involute), the equation of the deformed average fibre is given by: