Research on Gear Plunge Shaving for Gears with Tooth Modifications

Abstract

Plunge shaving is the most advanced gear finishing technique which only needs radial infeed. Its advantages include increased productivity, accuracy, long tool life, and a simple machine structure. For the plunge shaving method, the gear tooth modification only depends on the surface geometry of the plunge shaving cutter. The analytical description of the gear with tooth modifications is firstly constructed by B-spline surface fitting. Then, the grinding wheel profile is parameterized and optimized for minimizing the surface deviations of theoretical and ground (from re-sharpening machine) tooth surfaces of the plunge shaving cutter, in which the topographic error has been reduced. The cutting trace of plunge shaving cutter has also been analyzed so that the shaving efficiency can be improved.