Sound Intensity Analysis of Straight Bevel Gears Finished by Using AFF Process

This article reports using the Abrasive flow finishing (AFF) process to finish straight bevel gears (SBG) to improve their microgeometry errors and surface characteristics. Microgeometry errors, surface roughness parameters, and dual flank roll testing parameters was compared for unfinished and the AFF finished SBG. An indigenously developed bevel gear test rig was used for the sound intensity measurement and experiments were conducted by varying speeds at four levels. Finishing of SBG by the AFF process reduced their microgeometry errors, surface roughness, and improved functional performance parameters, resulting in reduced sound power generation. This study proves the potential of the AFF process to improve gear quality and help to establish it as a cost-effective, productive, and sustainable non-traditional solution for high-quality gear finishing.