电火花磨削非导电工程陶瓷实验研究  

Experimental Investigations of Machining Nonconductive Engineering Ceramics with Electrical Discharge Grinding(EDG)

作　　者：纪仁杰[1] 刘永红[1] 于丽丽[1] 李小朋[1] 

机构地区：[1]中国石油大学(华东)机电工程学院,东营257061

出　　处：《电加工与模具》2007年第6期11-14,共4页Electromachining & Mould

基　　金：国家自然科学基金资助项目(50675225);高等学校博士学科点专项科研基金资助项目(20040425504)

摘　　要：针对非导电工程陶瓷的加工难题,提出了双电极同步伺服电火花磨削新方法,并用不导电的Al2O3工程陶瓷进行了加工实验,研究了脉冲宽度、脉冲间隔、峰值电压、峰值电流等电参数对材料去除率和表面粗糙度的影响规律,并进行了理论分析。实验结果表明,在实验加工的范围内,脉冲宽度的增加、峰值电压的升高、峰值电流的增大、脉冲间隔的降低都能使材料去除率升高,而对表面粗糙度的影响则不尽相同。A new method known as electrical discharge and grinding with synchronous servo double electrodes （EDGSSDE） is presented in this paper for nonconductive engineering ceramics, and experiments have been carried out with insulating Al2O3. The effects of electrical parameters such as pulse width, pulse interval, peak voltage, peak current on the material removal rate （MRR） and surface roughness （Ra） are researched, and the mechanism is analyzed. The results show that higher MRR can be gained with increasing pulse width, peak voltage, peak current or decreasing pulse interval, but no rule to surface roughness.

关 键 词：非导电工程陶瓷 电火花磨削 双电极 

分 类 号：TG661[金属学及工艺—金属切削加工及机床]