Large area texturing using EDT is challenging due to surface damage resulted from inefficient discharges, such as arcs and short-circuits. Also, three-dimensional analyses of surface topography generated during electrical discharge texturing (EDT) are scarcely performed in the available literature. Therefore, in this work, two modes of EDT were developed for large area texturing based on the mode of electrode movement resulting in texture generation on work surfaces: circular-face EDT (CirEDT) and cylindrical-face EDT (CylEDT), and the generated surface topographies are characterized in terms of topography images, areal texture parameters, and scanning electron microscopy images. Parametric analyses are also performed to study the influences of the operating parameters, such as discharge current, pulse on-time, and peripheral velocity, on different areal texture parameters. Topography analyses reveal that these surfaces have a characteristic stochastic distribution of microstructures in shape, size, and location. Height parameter analyses reveal that CylEDT surfaces are twice positively skewed and have a higher kurtosis as compared to the CirEDT surfaces. Spatial parameter analyses reveal that both surfaces display dominance of isotropic nature and non-directional structures. CirEDT surfaces have higher lubricant retention capacity, but lesser wear volume available for running-in period as compared to CylEDT surfaces, as per volume parameter analyses. Discharge current and pulse on-time are identified as the significant parameters influencing the majority of the areal texture parameters analyzed. SEM analysis revealed that CylEDT results in a textured surface with sea-wave-like structures, whereas CirEDT results in a textured surface with lunar-craters-like structures.

由于放电效率低下，例如电弧和短路，导致表面损坏，因此使用EDT进行大面积纹理化具有挑战性。而且，在现有的文献中几乎没有对在放电纹理化（EDT）期间产生的表面形貌进行三维分析。因此，在这项工作中，基于电极运动的模式开发了两种EDT模式用于大面积纹理化，从而在工作表面上生成了纹理：圆形EDT（CirEDT）和圆柱EDT（CylEDT），并生成了表面形貌的特征在于形貌图像，面纹理参数和扫描电子显微镜图像。还执行参数分析以研究操作参数的影响，例如放电电流，脉冲导通时间和圆周速度，在不同的面纹理参数上。形貌分析表明，这些表面在形状，大小和位置方面具有微观结构的随机特征分布。高度参数分析显示，与CirEDT曲面相比，CylEDT曲面有两次正偏，并且具有更高的峰度。空间参数分析表明，两个表面都显示出各向同性和非定向结构的优势。与CylEDT表面相比，CirEDT表面具有更高的润滑剂保持能力，但根据体积参数分析，可用于磨合期的磨损量较小。放电电流和脉冲导通时间被确定为是影响所分析的大多数面纹理参数的重要参数。