金刚石与磨料磨具工程2017，Vol.37Issue(2)：55-61,7.DOI:10.13394/j.cnki.jgszz.2017.2.0012
氮化硅陶瓷ELID磨削预修锐与氧化膜成膜的影响因素
Influence factors of pre-dressing and oxide film forming when ELID grinding silicon nitride ceramic
摘要
Abstract
According to the machining requirements of high efficiency and low damage of silicon nitride ceramic rotary surface parts,an electrolytic in-process dressing(ELID) grinding experiment device is designed,which is suitable for rotary surface machining.Pre-dressing experiment is carried out on CNC coordinate grinder.Based on the parallel electrode electrolytic cell model,a model of the relationship between pre-dressing time and oxide film thickness is established,and the influence of the duty cycle and the pole clearance on the film formation is analyzed as well.Results show that duty cycle influences pre-conditioning time most,followed by electrolyte flow rate,grinding wheel speed and pulse frequency.In conclusion,the optimal process parameters are duty cycle 0.75,pulse frequency 50 kHz,wheel speed 9 000 r/min,and electrolyte flow rate 1.0 L/min through Taguchi method.关键词
ELID磨削/工程陶瓷/预修锐/氧化膜Key words
electrolytic in-process dressing grinding/engineering ceramics/pre-dressing/oxide film分类
矿业与冶金引用本文复制引用
万林林,刘志坚,邓朝晖,刘伟..氮化硅陶瓷ELID磨削预修锐与氧化膜成膜的影响因素[J].金刚石与磨料磨具工程,2017,37(2):55-61,7.基金项目
国家自然科学基金(51405152) （51405152）
湖南省自然科学基金(2017JJ2092). （2017JJ2092）
