旋转超声电解复合加工微小深孔的稳定性研究
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摘要
为提高管电极旋转超声电解复合加工微小深孔的稳定性,基于ANSYS CFX,建立了气液两相流气穴模型,分析了阴极高频振动条件下不同端面间隙的流场、电场分布,仿真结果表明,大间隙有利于气泡和电解产物的排出,有利于提高加工的稳定性,但不利于孔中心的小凸台的去除。通过辅助阴极能有效减小孔中心小凸台,提高加工的稳定性。
In order to improve the stability of micro-deep hole machined by shaped tube rotary combined ultrasonic and electrochemical machining,the two-phase flow cavitations model was established based on the ANSYS CFX. The distributions of flow field,electric field were gained at different end gap with the vibration of cathode in the simulation. The results showed that it is helpful for the discharging of bubbles and the products in the shaped tube rotary combined ultrasonic and electrochemical machining and the machining stability. But it is not conductive to remove the small boss at the center of hole. It can be effective to reduce the small boss by the auxiliary cathode,which improved the machining stability.
In order to improve the stability of micro-deep hole machined by shaped tube rotary combined ultrasonic and electrochemical machining,the two-phase flow cavitations model was established based on the ANSYS CFX. The distributions of flow field,electric field were gained at different end gap with the vibration of cathode in the simulation. The results showed that it is helpful for the discharging of bubbles and the products in the shaped tube rotary combined ultrasonic and electrochemical machining and the machining stability. But it is not conductive to remove the small boss at the center of hole. It can be effective to reduce the small boss by the auxiliary cathode,which improved the machining stability.
引文
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[25]王明环,刘望生,彭伟.螺旋微小深孔电解加工间隙多相流场特性及实验研究[J].兵工学报,2013,34(6):748~753.
[26]王超.卧式油气三相分离器的流场研究[D].吉林:吉林大学,2011.
[27]谢汉龙,赵新宇,张炯明.ANSYS CFX流体分析及仿真[M].北京,电子工业出版社,2011.
[28]Baburaj M.CFD ANALYSIS OF FLOW PATTERN IN ELECTROCHEMICAL MACHINING FOR L-SHAPED TOOL[D].India:National Institute of Technology Rourkela,2012.
[2]Zhu D,Mc Geough J A.New Development in electrochemical machining[J].Ann.CIRP,1999,48(2):567~579.
[3]Rajurkar K P,Kozak J,Wei B.Study of pulse electrochemical machining characteristics[J].Ann.CIRP,1993,42(1):231~234.
[4]Pa P.S.Electrode Form Design of Large Holes of Die Material in Ultrasonic Electrochemical Finishing[J].Journal of Material Processing Technology,2007:470~477.
[5]李兆龙,狄士春.深小孔脉冲电解加工精度控制研究[J].兵工学报,2012,33(4):414~419.
[6]李红英,云乃彰,朱永伟.超声电解复合微细加工硬质合金试验研究[J].航空制造技术,2009,(1):78~82.
[7]傅相林.超声对电化学过程的影响研究[D].扬州:扬州大学,2005.
[8]甘雪萍,戴曦,张传福.超声空化及其在电化学中的应用[J],四川有色金属,2001,(3):24~27.
[9]程敬泉,姚素薇.超声波在电化学中的应用[J],电镀与精饰,2005,27(1):16~20.
[10]Ruszaj A,Zybura M,Zurek R,et al.Some aspects of the electrochemical machining process supported by electrode ultrasonic vibrations optimization[J].Proc.Instn Mech.Engrs Vol.217 Part B:J.Engineering Manufacture,2003:1365~1371.
[11]Hewidy M S,Ebeid S J,El-Taweel T A,et al.Modelling the performance of ECM assisted by low frequency vibration[J].Journal of Materials Processing Technology,2007,(189):466~472.
[12]Sebastian Skoczypiec.Research on ultrasonically assisted electrochemical machining process[J].www.Springerlink.com.
[13]Bhattacharyya B,Malapati M,Munda J.et al.Influence of tool vibration on machining performance in electrochemical micro-machining of Copper[J].International Journal of Machine Tools&Manufacture,2007,(47):335~342.
[14]朱永伟,王占和,李红英等.电解复合超声频振动微细加工机理与试验研究[J].中国机械工程,2008,19(15):1786~1792.
[15]艾冬梅,贾志新.小孔加工技术发展现状[J].机械工程师,2000,(1):8~10.
[16]张祖军,陈奎儒,刘继光等.深小孔特种加工[J].机械工程与自动化,2004,(6):20~22.
[17]何英,朱红钢,韩野.航空发动机小孔特种加工技术[J].航空制造技术,2011,(4):57~61.
[18]徐家文,云乃彰,王建业等.电化学加工技术原理工艺及应用[M].北京:国防工业出版社,2008:34~90.
[19]赵雪松,高洪.精密模具超声电解复合抛光试验研究[J].农业机械学报,2004,35(3):188~190.
[20]朱永伟,王占和,云乃彰.超声电解复合微细加工装置与试验研究[J].机械科学与技术,2008,27(8):986~991.
[21]杨大春,云乃彰,严德荣.硬脆金属的超声电解复合加工研究[J].电加工与模具,2002,(2):31~33.
[22]孙春华,朱荻,李志永等.考虑流场特性的发动机叶片电解加工阴极设计及数值仿真[J].东南大学学报,2004,34(5):613~617.
[23]赵艳平.超细卧式搅拌磨的流场仿真及其粉碎机理研究[D].昆明:昆明理工大学,2009.
[24]彭耀,陈凤,宋耀祖,等.电场作用下单气泡行为的数值模拟[J].清华大学学报(自然科学版),2008,48(2):294~297.
[25]王明环,刘望生,彭伟.螺旋微小深孔电解加工间隙多相流场特性及实验研究[J].兵工学报,2013,34(6):748~753.
[26]王超.卧式油气三相分离器的流场研究[D].吉林:吉林大学,2011.
[27]谢汉龙,赵新宇,张炯明.ANSYS CFX流体分析及仿真[M].北京,电子工业出版社,2011.
[28]Baburaj M.CFD ANALYSIS OF FLOW PATTERN IN ELECTROCHEMICAL MACHINING FOR L-SHAPED TOOL[D].India:National Institute of Technology Rourkela,2012.