Abstract
This paper deals with the concerns of industrial demand for enhancing the machinability of Ti-6Al-4V titanium alloy (TC4). In this regard, the electroplastic effect of high-frequency pulse current can improve the plasticity of the material and reduce the processing resistance of the material. Its application in the processing and manufacturing of difficult-to-machine materials can greatly improve the processing performance. The research compared the effect on turning performance of titanium alloy workpieces after applying 50–400 A (700 Hz) current intensity and 300–1900 Hz (150 A) pulse frequency. Results indicated that the electric pulse–assisted turning (EPT) can promote the plastic flow of grains in the surface layer of Ti-6Al-4V workpiece and then reduce the turning resistance during machining. The residual stress on surface of workpiece after machining can be able to release under thermal effects. In addition, the VB value of tool flank face wear has been reduced in EPT compared to that of conventional turning (CT). It is also found that the change of current intensity has a greater impact in multiple properties during turning process than pulse frequency.
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The datasets generated and analyzed during the current study are available from the corresponding author on reasonable request.
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This work was supported from the Basic and Applied Basic Research Foundation of Guangdong Province (grant numbers 2021A1515012394), Zhuhai industrial core research project (grant numbers 2220004002348) and Natural Science Foundation of Guangdong Province (grant numbers 2022A1515010023).
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Article idea, Jianshuo Zhai and Shenggguan Qu; literature search and data analysis, Chenfeng Duan and Pengfei Sun; writing—original draft preparation, Jianshuo Zhai; writing—review and editing, Jianshuo Zhai; supervision, Xiaoqiang Li.
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Qu, S., Zhai, J., Sun, P. et al. Influence of electropulsing assisted on machining properties of Ti-6Al-4V titanium alloy. Int J Adv Manuf Technol 126, 3161–3174 (2023). https://doi.org/10.1007/s00170-023-11291-7
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DOI: https://doi.org/10.1007/s00170-023-11291-7