国防科技大学学报2017，Vol.39Issue(4)：179-184,6.DOI:10.11887/j.cn.201704028
流体动压超光滑加工关键工艺参数优化
Key process parameters optimization of hydrodynamic effect polishing
摘要
Abstract
The material removal rate of HEP (hydrodynamic effect polishing) was mainly affected by the distribution of hydrodynamic pressure and shear stress on the workpiece surface, and the key process parameters were sought out accordingly.Based on the fluid dynamic simulation and experiment exploration, it investigated in detail how the material removal rate was affected by the wheel immersed depth, the wheel rotated speed and the polishing clearance.The analysis results show that the wheel immersed depth has little effect on the removal rate while the removal rate decreases along with the reduction of the speed and the increase of the polishing clearance.Considering the practical process condition, the optimal wheel immersed depth, speed and polishing clearance are (2/3)R, 300 r/min and 25 μm respectively.Meanwhile, the temperature stability of the polishing head was monitored, and it reached thermal equilibrium within 4 hours at start of the device.Therefore the stability of polishing clearance affected by the temperature can be guaranteed by idling with preheating section.关键词
流体动压超光滑加工/工艺参数/材料去除速率/稳定性Key words
hydrodynamic effect polishing/process parameters/material removal rate/stability分类
机械制造引用本文复制引用
彭文强,关朝亮,胡旭东,王卓..流体动压超光滑加工关键工艺参数优化[J].国防科技大学学报,2017,39(4):179-184,6.基金项目
国家自然科学基金资助项目(61505259) （61505259）
