Effect of lapping temperature on performance of hydrophilic fixed abrasive pad
-
摘要: 研磨温度的升高会引起树脂基体模量的变化,从而影响亲水性固结磨料垫的加工性能。通过有限元分析软件仿真了亲水性固结磨料垫在不同研磨液温度下研磨石英玻璃的瞬态温度场,研究了不同温度条件下固结磨料垫基体的溶胀率与砂浆磨损量,探索了固结磨料垫在不同研磨液温度下的加工性能。结果表明:随着研磨液温度的升高,基体温度分布区间也随之改变,固结磨料垫基体的溶胀率与砂浆磨损量均增加,分别达到了1.43%与2.5 mg;温度升高使基体动态模量减小,材料去除率(material removal rate,MRR)和表面粗糙度Ra得到了改善,分别为8.2 μm/min和69.9 nm。因此适当提升研磨温度,能在一定程度上提高固结磨料垫的加工性能。Abstract: The rise of lapping temperature causes a change in the modulus of the resin matrix, thereby affecting the processing performance of the hydrophilic fixed abrasive pad.The transient temperature field of hydrophilic fixed abrasive pad at different slurry temperatures was simulated by finite element analysis.The swelling rate and the amount of slurry wear were adopted to characterize the properties of the resin matrix for fixed abrasive pad.The processing performance of fixed abrasive pad for quartz glass at different lapping temperature was explored.The results show that with the rise of lapping temperature, the temperature distribution range of the resin matrix also changes, the swelling rate and the amount of slurry wear of the pad matrix reach 1.43% and 2.5 mg, respectively.Experimental results show that the increase in temperature causes the matrix modulus to decrease, the material removal rate and average surface roughness are improved, which are 8.2 μm/min and 69.9 nm, respectively.Appropriately increase of lapping temperature can improve the processing performance of the fixed abrasive pad to a certain extent.
点击查看大图
计量
- 文章访问数: 186
- HTML全文浏览量: 33
- PDF下载量: 8
- 被引次数: 0