Abstract
To address the difficulty in detecting the discharge state of a narrow pulse width and small duty cycle pulse, in this study, we investigate the variation characteristics of the inter-electrode impedance in the micro-EDM process and propose a detection method to distinguish different discharge states in micro-EDM based on the change in electrical signal caused by the change characteristics. The influence of the pulse width and duty cycle on the quality of micro-EDM is summarised. The results show that the workpiece surface machining quality can be considerably improved by compressing the pulse width of the pulse power supply. A micro-EDM discharge state detection system based on the variation characteristics of the inter-electrode impedance is designed, and experiments verify the detection method. The control strategy of the discharge state detection system is analysed, and a control strategy based on the forward direction and discharge state is proposed. The machining effect of the control strategy is tested through a trial-machining experiment. According to the machining control strategy, the control signal is outputted, which can realise a stable and efficient micro-EDM process.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: The International Journal of Advanced Manufacturing Technology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
