Modeling for surface roughness of hard and brittle materials in axial ultrasonic vibration grinding
HE Yu-hui, WAN Rong-qiao, ZHOU Jian-jie，TANG Jin-yuan
1.College of Mechanical and Electrical Engineering, Central South University,Changsha 410083, China;
2. State Key Lab of High Performance Complex Manufacturing, Changsha 410083, China
Assuming the profile cross section of grain grinding grooves is a series of triangles whose vertex angle is equal to the cone angle of grinding particle and the grooves’ depth obeys Rayleigh distribution, considering the effects of grinding particles’ trajectories overlapping, the surface roughness model of hard and brittle materials in axial ultrasonic vibration grinding was established. K9 optical glass was taken as the test material, the fitting accuracies of the model without the overlapping effect of grinding particle trajectories and the one with this effect were analyzed contrastively. The results showed that the latter to characterize the surface roughness of ultrasonic grinding is more close to the test results; the effect trend of grinding parameters and vibration parameters on surface roughness reflected by the latter are consistent with the test results; so, the correctness and effectiveness of the proposed model is verified.
何玉辉1,2，万荣桥1,2，周剑杰1,2，唐进元1,2. 轴向超声振动磨削硬脆性材料表面粗糙度建模研究[J]. 振动与冲击, 2017, 36(23): 194-200.
HE Yu-hui, WAN Rong-qiao, ZHOU Jian-jie，TANG Jin-yuan. Modeling for surface roughness of hard and brittle materials in axial ultrasonic vibration grinding. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(23): 194-200.
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