Development of parallel spark electrical discharge machining
Development of parallel spark electrical discharge machining
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DOI：
10.1016/s0141-6359(03)00076-x
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发表时间：
2004
影响因子：
3.6
通讯作者：
Fuzhu Han;M. Kunieda
中科院分区：
文献类型：
--
作者：
Fuzhu Han;M. Kunieda
本文介绍了并联电火花加工方法的发展。在放电电路中，电极被分成多个电极，每个电极电绝缘并通过二极管连接到脉冲发生器。电容器平行于每个电极和工件之间的每个放电间隙插入（这里工件对于每个电极是公共的）。与传统电火花加工中每个脉冲只能产生一次放电相比，并联电火花加工中每个脉冲可以分散地产生多次放电。通过对平行电火花加工和普通电火花加工的对比试验，结果表明，平行电火花加工不仅加工过程稳定，而且加工速度和表面粗糙度都有较大的提高。
This paper describes the development of parallel spark EDM method. In the discharge circuit, the electrode is divided into multiple electrodes, each of which is electrically insulated and connected to the pulse generator through a diode. A capacitor is inserted parallel to each discharge gap between each electrode and workpiece (here workpiece is common for each electrode). Compared with conventional EDM in which only a singular discharge can be generated for each pulse, multiple discharges can dispersively be generated for each pulse in parallel spark EDM. Results of experiments on parallel spark EDM and conventional EDM show that not only is the machining process more stable, but the machining speed and surface roughness can also be improved with parallel spark EDM.