Prediction Method for Lapping Surface Micro-topography of Hypoid Gear

doi:10.3901/JME.2025.24.001

Abstract

Abstract: In order to explore the relationship between lapping process parameters and surface machining quality, to solve the problem of active calculation of micro-topography of the gear lapping surface, a method for predicting the micro-topography of hypoid gear lapping surfaces is proposed. Firstly, the meshing motion model of hypoid gears is established and tooth contact analysis is carried out. On the basis of comprehensive consideration of the characteristics of the gear lapping process and surface generation laws by lapping fluid, the formula for the cutting depth of the lapping abrasive particles is derived. Then, material removal calculations are performed on the initial profile to predict the height parameters of the tooth surface after lapping. The predicted results are then subjected to surface reconstruction using the Fast Fourier Transform method, and a micro-topography prediction model for the lapping surface considering initial workpiece topography and random wear mechanisms is established. By comparing with the lapping test results of the main reducer gear of a certain automobile drive axle, it is proven that this model can effectively predict the micro-topography of the hypoid gear lapping surface. Finally, different combinations of lapping process parameters are designed to discuss their influence on surface roughness variations.

Key words: hypoid gear, lapping, micro-topography modeling, roughness prediction

CLC Number:

TG61

HOU Jinbo, OUYANG Fangting, TANG Jinyuan, DING Han. Prediction Method for Lapping Surface Micro-topography of Hypoid Gear[J]. Journal of Mechanical Engineering, 2025, 61(24): 1-11.

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