纳米陶瓷材料超声振动磨削加工表面质量研究

研究纳米陶瓷材料磨削加工磨削力、磨削温度及表面粗糙度等表面特征,获取高质量的加工表面,是该工程材料得以广泛应用的重要前提。对纳米ZrO2陶瓷材料平板施加二维超声振动进行磨削,超声振动产生的空化作用、泵吸作用以及涡流作用,能一定程度上改善材料的加工性能、提高加工表面质量,实现纳米陶瓷材料的精密高效加工。结果表明:二维超声振动磨削与普通磨削相比,实际磨削力、磨削温度相对较低且随切削深度增加增长速度较慢;选取不同的磨粒粒度对纳米陶瓷材料进行磨削加工,超声振动加工的表面粗糙度值与普通磨削表面的粗糙度值相比相对较小。

Surface quality of nano-ceramics by ultrasonic vibration grinding

Grinding surface features of nano-ceramic material,such as grinding force,grinding temperature and surface roughness were studied to obtain high quality grinding surface. During two-dimensional ultrasonic vibration grinding of nano-ZrO2ceramic material plate,the cavitation,pumping and eddy current generated by ultrasonic vibration can improve the material properties to a certain extent,improve surface quality,and realize high machining precision of nanometer ceramic materials. Experimental results show that grinding force,grinding temperature of two-dimensional ultrasonic vibration grinding are relatively low and the growth rate of them is slower with the increase of cutting depth compared with ordinary grinding. Surface roughness value by ultrasonic vibration machining is relatively smaller than that by ordinary grinding for different grinding particle size.