The principles and methods of software engineering are applied in the paper,and the CAD system of preshaving pinion-shaped cutter is developed with the techniques of OOP,ADO and ObjectARX.

CAD of the preshaving gear-hob based on object ARX;

This paper develops a mathematical model for the solution to the longitudinal tooth curve of an internal gear shaver based on the simplified principle for space transmission of a helical gear pair without flank clearance,and proposes a calculating approach of the profile modification of the grinding wheel to be used for grinding the longitudinal tooth curve of the shaver.

The authors analyse the shaving process, study the shaving mechanism and point out that boa use of the intersection between the shaving cutter surface and the unshaved afar tooth surface in space, the cutting edges of shaving cutters remove the intersecting part of the gear and envelope the gear tooth surface under the role of shaving motions.

However, after shaved by shaving cutter with true involute profiles, there are the "mid-concave" phenomena on the pitch points of shaved gear tooth profiles inevitably.

The raker sharpening technology of gear shaving tools based on the balanced shaving;