Polishing of Large-Sized Spiral Bevel Gears Using Elastic Grindstone

Abstract

A manufacturing method of large-sized spiral bevel gears has been developed using a multi-axis control and multi-tasking machine tool in recent years. As a result of trial manufacturing of large-sized spiral bevel gears in a cyclo-palloid system using a multi-axis control and multitasking machine tool, and the surfaces roughness and tool mark of the machined gears were compared with those using a special generator, the surfaces were rough and leprous tool mark occurred. In this paper, the tooth surfaces are polished using a PVA elastic grindstone in order to improve the surface roughness and leprous tool mark. As a result, the surface roughness was improved after polishing although the wear and clogging of the elastic grindstone occurred.