The role of elastic vibration honing finishing on surface integrity of 16Cr3NiWMoVNbE gear was experimentally examined

by comparing profile feature of tooth chamfering

surface morphology and roughness

crosssectional metallurgic microstructure and microhardness

surface residual stress. Compared to the gear without finishing

elastic vibration honing has improved the chamfering profile

decreased surface roughness and promoted surface residual compressive stress. Such improvements increased with prolong finishing periods of elastic vibration honing. After prolonging for twice times of finishing period

arc transition at crest chamfer and fine mesh strips have been achieved. Moreover

the surface roughness has been decreased from Sa0.47 μm to Sa0.2 μm

and the average surface residual compressive stress has been enhanced by 52%. The results give a reference for process design of elastic vibration honing finishing on hard-machining aircraft gears.