Adaptive flushing technology for slotted electrode EDM based on gap discharge status detection

Minghao Gao; Ming Liu; Jianqing Han; Qinhe Zhang

doi:10.1117/12.2688971

18 July 2023 Adaptive flushing technology for slotted electrode EDM based on gap discharge status detection

Minghao Gao, Ming Liu, Jianqing Han, Qinhe Zhang

Proceedings Volume 12744, Second International Conference on Advanced Manufacturing Technology and Manufacturing Systems (ICAMTMS 2023); 127440I (2023) https://doi.org/10.1117/12.2688971
Event: Second International Conference on Advanced Manufacturing Technology and Manufacturing Systems (ICAMTMS 2023), 2023, Nanjing, China

Abstract

Traditional Electrical Discharge Machining (EDM) with internal flushing is often used for machining special-shaped cavities of conductive materials, which improves the machining efficiency but tends to produce sizeable residual material columns on the bottom surface of the workpiece cavity, affecting the machining quality. We propose an adaptive flushing technology for slotted electrode EDM based on gap discharge status detection to solve this problem. An adaptive flushing system was built, and the system’s feasibility was verified through experiments. EDM comparison experiments were designed to study the machining performance of the adaptive flushing slotted electrode EDM system. The experimental results show that the Material Removal Rate (MRR) is increased by about 1.1% and 8.0% when using adaptive flushing compared to continuous flushing and no flushing, respectively. The electrode wear rate (EWR) is reduced by about 38.8% and 4.4% compared to continuous flushing and no flushing, respectively. Therefore, adaptive flushing achieves the dual goal of ensuring processing efficiency and reducing electrode wear.

Citation Download Citation

Minghao Gao, Ming Liu, Jianqing Han, and Qinhe Zhang "Adaptive flushing technology for slotted electrode EDM based on gap discharge status detection", Proc. SPIE 12744, Second International Conference on Advanced Manufacturing Technology and Manufacturing Systems (ICAMTMS 2023), 127440I (18 July 2023); https://doi.org/10.1117/12.2688971

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