The industrial acceptance of ceramic materials is gradually increasing because of their attractive properties such as high strength, hot hardness, biocompatibility, insulating, and chemical stability over monolithic materials. The Zirconia (ZrO₂) is a ceramic material of nonconductive and brittle in nature; thereby, it is very difficult to machine by very popular well-known machining methods like ECM, WEDM, EDM, etc. The machining problem resists its industrial applications. To overcome this problem, electrochemical discharge machining (ECDM) is a combination of electrochemical and electrical discharge machining methods used to machine the nonconductive ZrO₂ material. The effects of machining parameters on machining responses were analysed through different graphs. Taguchi method-based L₁₆ (4⁵) orthogonal array was employed and utilized the acquired results to optimize the machining parameters. The experimental results reveal that the DC supply voltage and electrolyte concentration are the main governing factors in controlling the machining performance. The better material removal rate was identified at 65 V, 16 g/l electrolyte concentration, and 60-mm inter-electrode gap. FESEM images identified some of the micro-cracks on the machined hole surface when machining operations were carried out at a higher level of parameter setting. The presence of iron (Fe) was identified from EDS analysis, and it may be due to the diffused part of the steel cathode adhering to the machined surface.

陶瓷材料的吸引力在于，例如高强度，热硬度，生物相容性，绝缘性和相对于整体材料的化学稳定性，其在工业上的接受程度正在逐步提高。氧化锆（ZrO ₂）是一种不导电且易碎的陶瓷材料。因此，很难通过非常流行的众所周知的加工方法（例如ECM，WEDM，EDM等）进行加工。加工问题阻碍了其工业应用。为了克服这个问题，电化学放电加工（ECDM）是电化学和放电加工方法的组合，用于加工非导电ZrO ₂材料。通过不同的图表分析了加工参数对加工响应的影响。基于田口法的L ₁₆（4 ⁵使用正交阵列，并利用获得的结果优化加工参数。实验结果表明，直流电源电压和电解液浓度是控制加工性能的主要控制因素。在65 V，16 g / l的电解质浓度和60 mm的电极间间隙条件下，材料去除率更高。当以较高的参数设置水平执行加工操作时，FESEM图像识别出加工孔表面上的一些微裂纹。通过EDS分析鉴定出铁（Fe）的存在，这可能是由于钢阴极的扩散部分粘附在机加工表面上所致。