Research on shaving processing of spiroid face gear

Abstract

To reduce tooth surface errors and improve the quality of tooth surface morphology for the spiroid face gear manufactured roughly by die-casting, a method of shaving processing for this type of gears was developed. According to the differential geometry and the meshing theory of spatial crossed axes gears, the kinematics of the shaving processing for the spiroid face gear was analyzed, while the cutting velocity of both contact tooth surfaces was derived to illustrate the feasibility of gear shaving. With the designed tooth geometry of the shaving cutter, the simulation of generation of tooth surfaces for the spiroid face gear was developed. Machining experiments for such type gears were performed on a five-axis computer numerical control machine tool (CNC machine) with the axially grooved shaving cutters. The geometric error measurement of the shaved spiroid face gears was determined by D40 CNC gear measuring center. The research results are of sound great significance to improve the engagement and lubrication for the spiroid face gears.