基于润湿供液的电化学放电线切割实验研究

针对非导电硬脆材料的微细线切割加工,设计并搭建了基于润湿供液的电化学放电线切割装置,实现了对石英材料的有效切割,确定了实现电化学放电线切割加工的临界电压。通过提取加工过程中能反映极间状态的电流信号作为控制加工的依据,实现了对石英材料的可控加工,实验表明加工速率及槽宽随着电压的增加而增大。通过对工件步进进给和匀速进给两种加工方式的比较表明,利用电流信号作为进给控制依据进行步进进给能更好地保证加工的连续性。

Experimental Study on Wire Electrochemical Discharge Machining with Wetting Fluid Supply

A wire electrochemical discharge machining setup with wetting fluid supply for the micro wire cutting of non-conductive brittle materials was designed and built ,and has achieved effective cutting of quartz material. While revealed the critical voltage ,beyond what the wire electrochemical discharge machining will occur. By extracting the current signals of the process which reflect the status between the electrodes as the control basis ,achieved the controllable machining of quartz material,and the experiments show that the processing speed and width increased with voltage. The comparison experiments of stepping feed machining and uniform speed feed machining results show that stepping feed machining rely on current signal has a better ensure on the machining continuity.