Abstract
The material removal rate (MRR) of electrical discharge machining (EDM) is low when machining difficult-to-machine materials; to address this issue, a novel high-speed electrical machining (EM) method, namely vibration-assisted electro-arc machining (VEAM), is proposed in this study. In the process of VEAM, a graphite pipe was used as a tool electrode with high-pressure tap water medium applied inside. A direct-current power supply was used to generate enough energy for the machining process and vibration was applied onto the workpiece through the workbench. In our experiments, high-speed steel W9Mo3Cr4V serving as the workpiece was fixed on a workbench and a workpiece vibration along the Z-axis was provided by an electromagnetic vibration table through the workbench. The results showed that the superposition of vibration in electro-arc machining (EAM) can improve the MRR excellently. The maximum MRR of 8565 mm3/min was achieved with a 33% increase in EAM. The working mechanism of VEAM was investigated and comparative experiments with different machining parameters were conducted. The effects of the vibration frequency and amplitude were studied while the MRR, surface roughness (Rz), relative electrode wear ratio (REWR), and white layer thickness (WLT) and were selected as the evaluations. The results indicated that the novel high-speed VEAM method has great potential to obtain a higher MRR and a lower REWR.
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References
Ho K, Newman S (2003) State of the art electrical discharge machining (EDM). Int J Mach Tools Manuf 43:1287–1300
Marafona J, Wykes C (2000) A new method of optimising material removal rate using EDM with copper–tungsten electrodes. Int J Mach Tool Manu 40:153–164
Tsai HC, Yan BH, Huang FY (2003) EDM performance of Cr/Cu-based composite electrodes. Int J Mach Tools Manuf 43:245–252
Kunleda M, Miyoshi Y, Takaya T, Nakajima N, ZhanBo Y, Yoshida M (2003) High speed 3D milling by dry EDM. CIRP Ann Manuf Technol 52:147–150
Yeo S, Murali M, Cheah H (2004) Magnetic field assisted micro electro-discharge machining. J Micromech Microeng 14:1526–1529
Zhao WS, Meng QG, Wang ZL (2002) The application of research on powder mixed EDM in rough machining. J Mater Process Technol 129:30–33
Razak MA, Abdul-Rani AM, Nanimina AM (2015) Improving EDM efficiency with silicon carbide powder-mixed dielectric fluid. Int J Mater Mech Manuf 3:40–43
Lin M-Y, Tsao C-c, Hsu C-y, Chiou A-h, Huang P-c, Lin Y-c (2013) Optimization of micro milling electrical discharge machining of Inconel 718 by Grey-Taguchi method. Trans Nonferrous Metals Soc China 23:661–666
Dave HK, Mathai VJ, Mayanak MK, Raval HK, Desai KP (2016) Study on effect of process parameters on overcut and tool wear rate during micro-electro-discharge slotting process. Int J Adv Manuf Technol 85:2049–2060
Ayesta I, Izquierdo B, Sánchez J, Ramos J, Plaza S, Pombo I et al (2013) Influence of EDM parameters on slot machining in C1023 aeronautical alloy. Procedia CIRP 6:129–134
Han F, Wang Y, Zhou M (2009) High-speed EDM milling with moving electric arcs. Int J Mach Tools Manuf 49:20–24
Wang F, Liu Y, Tang Z, Ji R, Zhang Y, Shen Y (2013) Ultra-high-speed combined machining of electrical discharge machining and arc machining, Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manuf acture p. 0954405413506194
Zhao W, Gu L, Xu H, Li L, Xiang X (2013) A novel high efficiency electrical erosion process–blasting erosion arc machining. Procedia Cirp 6:621–625
Zhang M, Zhang Q, Dou L, Zhu G, Dong C (2016) An independent discharge status detection method and its application in EAM milling. Int J Adv Manuf Technol 87:909–918
Meshcheriakov G, Nosulenko V, Meshcheriakov N, Bokov V (1988) Physical and technological control of arc dimensional machining. CIRP Ann Manuf Technol 37:209–212
Hongping A, Kiyoshi H (1985) Phenomenon of Welding Arc: Machinery Industry Press
Eubank PT, Patel MR, Barrufet MA, Bozkurt B (1993) Theoretical models of the electrical discharge machining process. III. The variable mass, cylindrical plasma model. J Appl Phys 73:7900–7909
Zhiguang H, Zhidong L, Mingbo Q, Xiangzhi W, Zhongli C (2014) Discharge characteristics of cool electrode in EDM based on monopulse discharge. Int J Adv Manuf Technol 75:731–738
Yin S (2007) Craft foundation of gas shielded welding. China Machine Press, Beijing
Zhou JP, Xu Y, Zhang JZ, Ma B (2012) Analysis and study on surface quality of workpiece of short electric arc machining process. In: Key Eng Mater, pp 47–51
Zheng CK (2009) Plasma physics. Peking University Press, Beijing
Yin SY (2007) Craft foundation of gas shielded welding. Machine Press
Zhang M, Zhang Q, Dou L, Liu Q, Dong C (2016) Effects of flushing on electrical discharge machining and electro-arc machining. Proc Inst Mech Eng B J Eng Manuf 230:293–302
Zhang M, Zhang Q, Wang H, Liu G, Guo T (2015) Research on a single pulse discharge to discriminate EDM and EAM based on the plasma tunnel and crater geometry. J Mater Process Technol 219:248–256
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The work is financially supported by grants from the National Natural Science Foundation of China (Grant no.: 51775316), the National Youth Science Foundation (no.: 51705236), the Breeding Project of Inter discipline of Shandong University (no. 2016JC008).
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Zhu, G., Zhang, M., Zhang, Q. et al. High-speed vibration-assisted electro-arc machining. Int J Adv Manuf Technol 101, 3121–3129 (2019). https://doi.org/10.1007/s00170-018-3121-4
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DOI: https://doi.org/10.1007/s00170-018-3121-4