A tooth surface finishing method with a new tool of a vitrified cubic boron nitride wheel for involute internal spline

For highly accurate and highly efficient tooth surface finishing, a vitrifi ed cubic boron nitride (CBN) wheel or an electro-deposited CBN wheel exhibi ts superior performance. Honing by an involute spline tooth meshing is effe ctive due to the generating motion. However, a lack of wheel rigidity and a n inadequate feed motion of the wheel tend to reduce the finishing performa nce. As a result, it is difficult to keep the tooth surface smooth. In this study, the finishing with a vitrified CBN wheel is carried out using a new honing tool. The finishing performance is compared with that obtained usin g an electro-deposited wheel, and the finishing is carried out by braking a n internal spline axis. The influence of different feed methods is investig ated on the roughness of the finished tooth surface. The finishing using a vitrified CBN wheel and braking an internal spline axis shows superior perf ormance.