Experimental Investigation of Material Removal Mechanism for High-speed Rotation Electrochemical Discharge Drilling
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摘要: 为了研究电化学放电钻削工艺中的材料去除机理，采用高速旋转的碳化钨螺旋工具电极对ANSI 304型不锈钢工件进行了一系列试验研究，并使用高速摄像机观察加工过程中气泡的产生、气膜的形成和电火花放电现象。通过分析加工电流的信号波形和不同转速下的电火花放电现象，从而进一步揭示了电化学放电加工中的材料去除机理。结果表明：当工具电极较高速旋转时，工件材料是通过EDM和ECM的协同作用被蚀除；当工具电极转速极低或静止时，工件材料是通过ECM被蚀除。Abstract: To study the material removal mechanism in the electrochemical discharge drilling (ECDD) process, a series of experimental investigation for ANSI 304 stainless steel work-pieces were carried out with a high-speed rotating tungsten carbide helical tool-electrode, and high-speed camera was used to observe the bubbles generation, the gas film formation and the electric spark discharge phenomenon in the drilling process. The material removal mechanism in the electrochemical discharge drilling is further revealed by analyzing the signal waveform of the drilling current and the spark discharge phenomena at different rotational speed. The experimental results show that at the high rotational speed of tool-electrode, the material of work-piece is mainly eroded via the combination of the electrical discharge machining(EDM) and the electrochemical machining(ECM); at the extremely lower or stationary rotational speed of tool-electrode, the material of work-piece is merely etched via ECM.
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表 1 试验参数
加工参数 数值 加工电压/V 10 加工电压频率/kHz 25 占空比/% 50 转数/(r·min-1) 3 600、9 000、10 800、14 400、18 000 工具电极直径/mm 0.25 工件 ANSI 304型不锈钢 加工时间/s 100 初始加工间隙/μm 40 工作液 自来水 工具电极 碳化钨螺旋工具电极 进给速度/(μm·s-1) 1 
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[1] Yadav R N, Suryavanshi A. Micro-electrochemical discharge machining[M]//Kibria G, Jahan M P, Bhattacharyya B. Micro-Electrical Discharge Machining Processes. Singapore: Springer, 2019: 265-291 [2] Singh M, Singh S. Electrochemical discharge machining:a review on preceding and perspective research[J]. Proceedings of the Institution of Mechanical Engineers, Part B:Journal of Engineering Manufacture, 2019, 233(5):1425-1449 doi: 10.1177/0954405418798865 [3] Singh T, Dvivedi A. developments in electrochemical discharge machining:a review on electrochemical discharge machining, process variants and their hybrid methods[J]. International Journal of Machine Tools and Manufacture, 2016, 105:1-13 doi: 10.1016/j.ijmachtools.2016.03.004 [4] Singh M, Singh S. Machining of difficult to cut materials by electrochemical discharge machining (ECDM) process: a state of art approach[M]//Antony K, Davim J P. Advanced Manufacturing and Materials Science. Cham: Springer, 2018: 139-149 [5] Shohi S, Esashi M. Photoetching and electrochemical discharge drilling of Pyrex glass[C]//Technical Digest of the 9th Sensor Symposium. Tokyo, Japan: The Institute of Electrical Engineers of Japan, 1990: 27 [6] Bhattacharyya B, Doloi B N, Sorkhel S K. Experimental Investigations into Electrochemical Discharge Machining (ECDM) of Non-conductive Ceramic Materials[J]. Journal of Materials Processing Technology, 1999, 95(1-3):145-154 doi: 10.1016/S0924-0136(99)00318-0 [7] Doloi B, Bhattacharyya B, Sorkhel S K. Electrochemical discharge machining of non-conducting ceramics[J]. Defence Science Journal, 2013, 49(4):331-338 http://www.researchgate.net/publication/276326722_electrochemical_discharge_machining_of_non-conducting_ceramics [8] Kuo K Y, Wu K L, Yang C K, et al. Wire electrochemical discharge machining (WECDM) of quartz glass with titrated electrolyte flow[J]. International Journal of Machine Tools and Manufacture, 2013, 72:50-57 doi: 10.1016/j.ijmachtools.2013.06.003 [9] Yang C T, Ho S S, Yan B H. Micro hole machining of borosilicate glass through electrochemical discharge machining (ECDM)[J]. Key Engineering Materials, 2001, 196:149-166 doi: 10.4028/www.scientific.net/KEM.196.149 [10] Kang X M, Tang W D. Micro-drilling in ceramic-coated Ni-superalloy by electrochemical discharge machining[J]. Journal of Materials Processing Technology, 2018, 255:656-664 doi: 10.1016/j.jmatprotec.2018.01.014 [11] Antil P, Singh S, Manna A. Experimental investigation during electrochemical discharge machining (ECDM) of hybrid polymer matrix composites[J]. Iranian Journal of Science and Technology, Transactions of Mechanical Engineering, 2019, doi: 10.1007/s40997-019-00280-5 [12] Liu Y, Zhang C, Li S S, et al. Experimental study of micro electrochemical discharge machining of ultra-clear glass with a rotating helical tool[J]. Processes, 2019, 7(4):195 doi: 10.3390/pr7040195 [13] Liu J W, Yue T M, Guo Z N. Wire electrochemical discharge machining of Al2O3 particle reinforced aluminum alloy 6061[J]. Materials and Manufacturing Processes, 2009, 24(4):446-453 doi: 10.1080/10426910802714365 [14] Jui S K, Kamaraj A B, Sundaram M M. High aspect ratio micromachining of glass by electrochemical discharge machining (ECDM)[J]. Journal of Manufacturing Processes, 2013, 15(4):460-466 doi: 10.1016/j.jmapro.2013.05.006 [15] Ranganayakulu J, Srihari P V. Multi-objective optimization using Taguchi's loss function-based principal component analysis in electrochemical discharge machining of micro-channels on borosilicate glass with direct and hybrid electrolytes[M]//Sekar K S V, Gupta M, Arockiarajan A. Advances in Manufacturing Processes. Singapore: Springer, 2019: 349-360 [16] Hung J C, Liu J H, Fan Z W. Fabrication of microscale concave and grooves through mixed-gas electrochemical jet machining[J]. Precision Engineering, 2019, 55:310-321 doi: 10.1016/j.precisioneng.2018.09.020 [17] Peng W Y, Liao Y S. Study of electrochemical discharge machining technology for slicing non-conductive brittle materials[J]. Journal of Materials Processing Technology, 2004, 149(1-3):363-369 doi: 10.1016/j.jmatprotec.2003.11.054 [18] Zheng Z P, Cheng W H, Huang F Y, et al. 3D microstructuring of pyrex glass using the electrochemical discharge machining process[J]. Journal of Micromechanics and Microengineering, 2007, 17(5):960-966 doi: 10.1088/0960-1317/17/5/016 [19] Arab J, Mishra D K, Kannojia H K, et al. Fabrication of multiple through-holes in non-conductive materials by electrochemical discharge machining for rf mems packaging[J]. Journal of Materials Processing Technology, 2019, 271:542-553 doi: 10.1016/j.jmatprotec.2019.04.032 [20] Liu J W, Yue T M, Guo Z N. An analysis of the discharge mechanism in electrochemical discharge machining of particulate reinforced metal matrix composites[J]. International Journal of Machine Tools and Manufacture, 2010, 50(1):86-96 doi: 10.1016/j.ijmachtools.2009.09.004 [21] Kurafuji H, Suda K. Electrical discharge drilling of glass[J]. Annals of the CIRP, 1968, 16:415-419 [22] Crichton I M, McGeough J A. Studies of the discharge mechanisms in electrochemical arc machining[J]. Journal of Applied Electrochemistry, 1985, 15(1):113-119 doi: 10.1007/BF00617748 [23] Basak I, Ghosh A. Mechanism of spark generation during electrochemical discharge machining:a theoretical model and experimental verification[J]. Journal of Materials Processing Technology, 1996, 62(1-3):46-53 doi: 10.1016/0924-0136(95)02202-3 [24] Ghosh A. Electrochemical discharge machining:principle and possibilities[J]. Sadhana, 1997, 22(3):435-447 doi: 10.1007/BF02744482 [25] Gautam N, Jain V K. Experimental investigations into ECSD process using various tool kinematics[J]. International Journal of Machine Tools and Manufacture, 1998, 38(1-2):15-27 doi: 10.1016/S0890-6955(98)00034-0 [26] Mediliyegedara T K K R, De Silva A K M, Harrison D K, et al. An intelligent pulse classification system for electro-chemical discharge machining (ECDM)-a preliminary study[J]. Journal of Materials Processing Technology, 2004, 149(1-3):499-503 doi: 10.1016/j.jmatprotec.2004.04.002 [27] Yang C T, Song S L, Yan B H, et al. Improving machining performance of wire electrochemical discharge machining by adding SiC abrasive to electrolyte[J]. International Journal of Machine Tools and Manufacture, 2006, 46(15):2044-2050 doi: 10.1016/j.ijmachtools.2006.01.006 [28] Han M S, Min B K, Lee S J. Geometric improvement of electrochemical discharge micro-drilling using an ultrasonic-vibrated electrolyte[J]. Journal of Micromechanics and Microengineering, 2009, 19(6):065004 doi: 10.1088/0960-1317/19/6/065004 [29] Cao X D, Kim B H, Chu C N. Micro-structuring of glass with features less than 100μm by electrochemical discharge machining[J]. Precision Engineering, 2009, 33(4):459-465 doi: 10.1016/j.precisioneng.2009.01.001 [30] Huang S F, Liu Y, Li J, et al. Electrochemical discharge machining micro-hole in stainless steel with tool electrode high-speed rotating[J]. Materials and Manufacturing Processes, 2014, 29(5):634-637 doi: 10.1080/10426914.2014.901523 [31] Huang S H, Zhu D, Zeng Y B, et al. Micro-hole machined by electrochemical discharge machining (ECDM) with high speed rotating cathode[J]. Advanced Materials Research, 2011, 295-297:1794-1799 doi: 10.4028/www.scientific.net/AMR.295-297.1794 [32] Goud M, Sharma A K. A three-dimensional finite element simulation approach to analyze material removal in electrochemical discharge machining[J]. Proceedings of the Institution of Mechanical Engineers, Part C:Journal of Mechanical Engineering Science, 2017, 231(13):2417-2428 doi: 10.1177/0954406216636167 [33] Tang W D, Kang X M, Zhao W S. Experimental investigation of gas evolution in electrochemical discharge machining process[J]. International Journal of Electrochemical Science, 2019, 14(1):970-984 http://www.researchgate.net/publication/330061175_Experimental_Investigation_of_Gas_Evolution_in_Electrochemical_Discharge_Machining_Process -
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