功能梯度材料微细电火花电极损耗机理研究
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摘要
论述了功能梯度材料Ni-TiN/Cu微细电火花电极的制备方法,并用实验的方法研究功能梯度材料层在电火花微细加工对电极损耗的影响。Ni-TiN/Cu微细电火花电极通过在圆柱铜电极外侧电沉积功能梯度材料层来制备,纳米颗粒TiN做为增强相。通过使用SEM分析功能梯度材料层的显微组织,使用光学显微镜测量电极加工孔质量与电极损耗情况,对比功能梯度材料电极与均质电极的电火花加工性能。在微细电火花加工中,功能梯度材料层可以有效的抑制高频脉冲条件下电极的损耗效应,改善电流密度分布,从根本上解决因尖端放电引起的电极形状变化问题,实现端面等损耗,保证了微细电火花加工电极的形状精度。实验结果验证了功能梯度材料作为工具电极在微细电火花加工应用的前景。
The preparation method of functionally graded material Ni-TiN/Cu micro EDM electrode is discussed in this paper,and the effect of functionally graded material layer on electrode loss is studied by experiments. Ni-TiN/Cu micro electro discharge electrode is prepared by depositing the functionally graded material layer on the outer side of the cylindrical copper electrode,while the nano particle TiN is used as the reinforcing phase. By means of SEM to analyze the microstructure of the function gradient material layer,and with optical microscope to measure the electrode hole machining quality and electrode loss,finally compared functionally graded materials electrode and homogeneous electrode EDM performance. In micro electrical discharge machining(EDM),the functional gradient material coating can effectively inhibit effect of electrode loss in high frequency,improve the current density distribution,and it fundamentally solves the electrode shape change caused by tip discharge,end loss,to ensure the accuracy of the micro EDM electrode shape. The experimental results show the prospects for functional gradient material to be used as tool electrode in the micro-EDM process.
The preparation method of functionally graded material Ni-TiN/Cu micro EDM electrode is discussed in this paper,and the effect of functionally graded material layer on electrode loss is studied by experiments. Ni-TiN/Cu micro electro discharge electrode is prepared by depositing the functionally graded material layer on the outer side of the cylindrical copper electrode,while the nano particle TiN is used as the reinforcing phase. By means of SEM to analyze the microstructure of the function gradient material layer,and with optical microscope to measure the electrode hole machining quality and electrode loss,finally compared functionally graded materials electrode and homogeneous electrode EDM performance. In micro electrical discharge machining(EDM),the functional gradient material coating can effectively inhibit effect of electrode loss in high frequency,improve the current density distribution,and it fundamentally solves the electrode shape change caused by tip discharge,end loss,to ensure the accuracy of the micro EDM electrode shape. The experimental results show the prospects for functional gradient material to be used as tool electrode in the micro-EDM process.
引文
[1]Cherradi N,Kawasaki A,Gasik M.Worldwide trends in functional gradient materials research and development[J].Composites Engineering,1994,4(8):883-894.
[2]Autissier E,Richou M,Bernard F.Design optimization of plasma facing component with functional gradient material Cu/W interlayer[J].Fusion Engineering and Design,2013,88(9-10):1714-1717.
[3]刘华炜,刘学武,张广文.功能梯度材料制备工艺及研究进展[J].机械设计与制造,2012(4):265-267.(Liu Hua-wei,Liu Xue-wu,Zhang Guang-wen.Research progress and preparing technology of functionally graded material[J].Machinery Design&Manufacture,2012(4):265-267.)
[4]Sebastián P,Vallés E,Gómez E.Copper electrodeposition in a deep eutectic solvent.First stages analysis considering Cu(I)stabilization in chloride media[J].Electrochimica Acta,2014,123(5):285-295.
[5]Park JM,Jin K,Han B.Atomic layer deposition of copper nitride film and its application to copper seed layer for electrodeposition[J].Thin Solid Films,2014,556(5):434-439.
[6]Eslami M,Saghafian H,Golestani-fard F.Effect of electrodeposition conditions on the properties of Cu-Si3N4 composite coatings[J].Applied Surface Science,2014,300(5):129-140.
[7]Yu Zu-yuan,Masuzawa T,Fujino M.Micro-EDM for three-dimensional cavities-development of uniform wear method[J].Annals of the CIRP,1998,47(1):169-172.
[8]Chen Wei,Kang Xiao-ming,Gu Lin.Research on electrically conductive CVD diamond as electrodes in micro and fine EDM[J].Machinery,2006,33(4):26-28.
[9]Guo Dong-ming.Particle strengthening of the surface of copper electrode for electrical discharge machining[C].in:International Conference on Surface Finishing Technology and Surface Engineering Dailan,China:Frontiers Design Manufcturing,2006.
[10]Wang Yuan-gang,Zhao Fu-ling,Wang Jin.Wear-resist Electrodes for Micro-EDM[J].Chinese Journal of Aeronautics,2009,22(3):339-342.
[11]Xia Fa-feng,Wu Meng-hua,Wang Fang.Nanocomposite Ni-Ti N coatings prepared by ultrasonic electrodeposition[J].Current Applied Physics,2009,9(1):44-47.
[12]Li Xiao-peng,Wang Yuan-gang,Zhao Fu-ling.Influence of high frequency pulse on electrode wear in micro-EDM[J].Defence Technology,2014,10(3):316-320.
[2]Autissier E,Richou M,Bernard F.Design optimization of plasma facing component with functional gradient material Cu/W interlayer[J].Fusion Engineering and Design,2013,88(9-10):1714-1717.
[3]刘华炜,刘学武,张广文.功能梯度材料制备工艺及研究进展[J].机械设计与制造,2012(4):265-267.(Liu Hua-wei,Liu Xue-wu,Zhang Guang-wen.Research progress and preparing technology of functionally graded material[J].Machinery Design&Manufacture,2012(4):265-267.)
[4]Sebastián P,Vallés E,Gómez E.Copper electrodeposition in a deep eutectic solvent.First stages analysis considering Cu(I)stabilization in chloride media[J].Electrochimica Acta,2014,123(5):285-295.
[5]Park JM,Jin K,Han B.Atomic layer deposition of copper nitride film and its application to copper seed layer for electrodeposition[J].Thin Solid Films,2014,556(5):434-439.
[6]Eslami M,Saghafian H,Golestani-fard F.Effect of electrodeposition conditions on the properties of Cu-Si3N4 composite coatings[J].Applied Surface Science,2014,300(5):129-140.
[7]Yu Zu-yuan,Masuzawa T,Fujino M.Micro-EDM for three-dimensional cavities-development of uniform wear method[J].Annals of the CIRP,1998,47(1):169-172.
[8]Chen Wei,Kang Xiao-ming,Gu Lin.Research on electrically conductive CVD diamond as electrodes in micro and fine EDM[J].Machinery,2006,33(4):26-28.
[9]Guo Dong-ming.Particle strengthening of the surface of copper electrode for electrical discharge machining[C].in:International Conference on Surface Finishing Technology and Surface Engineering Dailan,China:Frontiers Design Manufcturing,2006.
[10]Wang Yuan-gang,Zhao Fu-ling,Wang Jin.Wear-resist Electrodes for Micro-EDM[J].Chinese Journal of Aeronautics,2009,22(3):339-342.
[11]Xia Fa-feng,Wu Meng-hua,Wang Fang.Nanocomposite Ni-Ti N coatings prepared by ultrasonic electrodeposition[J].Current Applied Physics,2009,9(1):44-47.
[12]Li Xiao-peng,Wang Yuan-gang,Zhao Fu-ling.Influence of high frequency pulse on electrode wear in micro-EDM[J].Defence Technology,2014,10(3):316-320.