Proceedings of the
9th International Conference of Asian Society for Precision Engineering and Nanotechnology (ASPEN2022)
15 – 18 November 2022, Singapore

Study of Cutting Force and Tool Wear in High Frequency Electrical Discharge Assisted MillingUsing Flexible Electrode

Moran Xu1, Changping Li2, Rendi Kurniawan1, Jielin Chen1, Yein Kwak1, Shuo Chen1 and Taejo Ko1,a

1Department of Mechanical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongbuk, 38541

2School of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan Road, Hunan, 411199, China


Previous research has validated the machinability of the new machining method for electrical discharge assisted milling (EDAM). However, due to the shortcomings of the EDAM tool, such as the inability to compensate the electrode and the small discharge area, its further popularization and application are seriously limited. This paper introduces a high frequency EDAM (HF-EDAM) process based on a novel tool with flexible electrodes. In this study, the material removal mechanism of HF-EDAM technology under different machining parameters is deeply explored. By analyzing the cutting force and tool wear after machining, the specific machining mechanism of HF-EDAM under different machining parameters is revealed. At the same time, the mechanism of flexible electrodes and EDAM tools has also been studied in depth. The experimental results show that compared with CM, HF-EDAM greatly reduces cutting force and tool wear. In this paper, the excellent machinability of the HF-EDAM machining method based on flexible electrodes is verified by experiments, which provides an effective method for high-quality and efficient machining of titanium alloys.

Keywords: High frequency electrical discharge-assisted milling, Hybrid machining, Flexible electrode, Cutting force, Tool wear

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