非导电工程陶瓷电火花磨削技术

开发出双电极同步伺服跟踪电火花磨削新技术，该技术突破了传统的机械磨削和电解电火花机械复合磨削方法，利用导电磨轮与紧贴非导电工程陶瓷工件表面作自动伺服进给运动的薄片辅助电极间的放电实现电火花磨削。对非导电的Al2O3工程陶瓷进行加工试验，给出加工参数如脉冲宽度、脉冲间隔、峰值电压、峰值电流、磨轮转速以及铜片电极厚度等对材料去除率和表面粗糙度的影响规律关系。试验结果表明，该种新型加工技术具有效率高、表面质量好、成本低和对环境无污染等优点。

Technology for Electrical Discharge Grinding of Non-conductive Engineering Ceramics

A new technology for electrical discharge grinding of non-conductive engineering ceramics with synchronous servo double electrodes method is developed. It integrates electrical discharge and mechanical grinding with a metal bonded conductive wheel and an assistant sheet as two electrodes. Selecting insulating Al2O3 ceramics and copper as workpiece material and assistant sheet electrode, experiments are carried out. Parameters such as pulse duration, pulse interval, peak voltage, peak current, wheel speed and copper sheet thickness are changed to explore their effect on the material removal rate and surface roughness. The experiment results show that the new process features high efficiency, low cost, high quality of machined surface and nopollution to the environment.