Electrochemical discharge machining (ECDM) is a prominent hybrid process for machining of difficult to cut materials. In recent years, various research investigations have been attempted to enhance the process capability of ECDM using further hybridization with ultrasonic, magnetic, rotary assistance etc. In present work, an attempt has been made to enhance the process capability of ECDM process by LASER assistance. The proposed technique explore the effect of LASER assisted electrochemical discharge machining (LA-ECDM) on output quality characteristics such as overcut and taper of hole. The purpose of low power LASER is assist the machining process by localized heating of electrolyte. A comparative study has been performed between LA-ECDM and ECDM process. Carbon fiber reinforced polymer composite was machined with four input process parameters as tool diameter, tool travel rate, tool rotation and duty cycle. The investigation reveals that overcut and taper of hole decreases approximately by 10–12 % with assistance of LASER. The micro-hole machined by LA-ECDM exhibits superior machining quality in terms of circularity of hole, dimensional accuracy and surface damages. SEM micrographs shows uniform distribution of carbon fibers all along the machined surface. This improvement is attributed to formation of stable and thinner gas film during machining. The behaviour of gas film and spark phenomenon during ECDM and LA-ECDM has been investigated using high shutter speed camera.

电化学放电加工（ECDM）是用于加工难切削材料的杰出混合工艺。近年来，已经尝试了各种研究调查，以通过与超声，磁性，旋转辅助等进一步杂交来增强ECDM的处理能力。在当前的工作中，已经尝试通过LASER辅助来增强ECDM处理的处理能力。拟议的技术探讨了激光辅助电化学放电加工（LA-ECDM）对输出质量特性（如孔的过切和锥度）的影响。低功率激光的目的是通过局部加热电解液来辅助加工过程。LA-ECDM和ECDM工艺之间进行了比较研究。用四个输入工艺参数加工碳纤维增强聚合物复合材料，例如刀具直径，刀具行进速率，刀具旋转和占空比。调查表明，在激光的辅助下，孔的过切和锥度减少了约10–12％。LA-ECDM加工的微孔在孔的圆度，尺寸精度和表面损伤方面表现出卓越的加工质量。SEM显微照片显示了碳纤维在整个加工表面上的均匀分布。该改进归因于在加工期间形成稳定且较薄的气膜。使用高快门速度相机研究了ECDM和LA-ECDM期间的气膜行为和火​​花现象。调查表明，在激光的辅助下，孔的过切和锥度减少了约10–12％。LA-ECDM加工的微孔在孔的圆度，尺寸精度和表面损伤方面表现出卓越的加工质量。SEM显微照片显示了碳纤维在整个加工表面上的均匀分布。该改进归因于在加工期间形成稳定且较薄的气膜。使用高快门速度相机研究了ECDM和LA-ECDM期间的气膜行为和火​​花现象。调查表明，在激光的辅助下，孔的过切和锥度减少了约10–12％。LA-ECDM加工的微孔在孔的圆度，尺寸精度和表面损伤方面表现出卓越的加工质量。SEM显微照片显示了碳纤维在整个加工表面上的均匀分布。该改进归因于在加工期间形成稳定且较薄的气膜。使用高快门速度相机研究了ECDM和LA-ECDM期间的气膜行为和火​​花现象。SEM显微照片显示了碳纤维在整个加工表面上的均匀分布。该改进归因于在加工期间形成稳定且较薄的气膜。使用高快门速度相机研究了ECDM和LA-ECDM期间的气膜行为和火​​花现象。SEM显微照片显示了碳纤维在整个加工表面上的均匀分布。该改进归因于在加工期间形成稳定且较薄的气膜。使用高快门速度相机研究了ECDM和LA-ECDM期间的气膜行为和火​​花现象。