材料工程与机械制造

TC4钛合金电火花诱导可控烧蚀复合车削技术研究

  • 陈龙海 ,
  • 刘志东 ,
  • 邱明波 ,
  • 田宗军 ,
  • 尹纯晶
展开
  • 南京航空航天大学 机电学院, 江苏 南京 210016
陈龙海 男,硕士研究生。主要研究方向:特种加工。 E-mail:xchenlonghai@126.com;刘志东 男,博士,教授,博士生导师。主要研究方向:特种加工,半导体放电加工,高效加工。 Tel:025-84892520 E-mail:liutim@nuaa.edu.cn

收稿日期: 2013-01-22

  修回日期: 2013-05-02

  网络出版日期: 2013-05-17

基金资助

国家自然科学基金(51175256,51205197);航空科学基金(2011ZE52060);江苏省自然科学基金(BK2011732)

Technical Research of Combined Machining of TC4 Titanium Alloy by EDM Induced Controllable Combustion and Turning Dressing

  • CHEN Longhai ,
  • LIU Zhidong ,
  • QIU Mingbo ,
  • TIAN Zongjun ,
  • YIN Chunjing
Expand
  • College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Received date: 2013-01-22

  Revised date: 2013-05-02

  Online published: 2013-05-17

Supported by

National Natural Science Foundation of China (51175256,51205197);Aeronautical Science Foundation of China(2011ZE52060);Natural Science Foundation of Jiangsu Province (BK2011732).

摘要

利用钛合金的可燃性,在电火花诱导放电和氧气助燃作用下,提出了对TC4钛合金进行放电诱导可控烧蚀并同时通过车刀对烧蚀层和软化层进行在线机械修整的新型加工方法。建立了电火花诱导可控烧蚀复合车削加工极间双介质放电模型,分析并验证了诱导烧蚀放电极间气、液两相流电介质击穿机理。对TC4钛合金进行常规电火花车削、电火花诱导可控烧蚀车削和电火花诱导可控烧蚀复合车削对比试验,并分析了复合车削的工艺特点。结果表明,电火花诱导可控烧蚀复合车削具有加工速度快、表面质量好和电极损耗低等优点。

本文引用格式

陈龙海 , 刘志东 , 邱明波 , 田宗军 , 尹纯晶 . TC4钛合金电火花诱导可控烧蚀复合车削技术研究[J]. 航空学报, 2013 , 34(11) : 2626 -2634 . DOI: 10.7527/S1000-6893.2013.0251

Abstract

Based on the flammability of titanium alloy, a new processing method for TC4 is proposed by combining the induction of electrical discharge with comburent oxygen and machining. The machining principle is that the controllable combustion induced by electrical discharge between the workpiece and combustion inducing electrode at the same time enables the turning tool to dress the combusted and softened layer of the workpiece formed by controllable combustion on-line. It establishes an inter-electrode dual dielectric discharge model of controllable combustion and turning dressing combined machining, analyses the gas and liquid dual dielectric liquid discharge mechanism between the combustion inducing electrode and workpiece, and compares the new method with electrical discharge machining and controllable combustion induced by electrical discharge machining. The test results show that the combined machining of controllable combustion induced by electrical discharge machining and turning dressing has the characteristics of high processing speed, good surface quality and low electrode wear.

参考文献

[1] Zhao W S.Advanced electrical discharge machining technology.Beijing: National Defense Industry Press,2003: 4-5.赵万生.先进电火花加工技术.北京: 国防工业出版社,2003: 4-5.

[2] Kunieda M,Yoshida M,Taniguchi N.Electrical discharge machining in gas.CIRP Annals-Manufacturing Technology,1997,46(1): 143-146.

[3] Zhang Q H,Zhang J H,Deng J X,et al.Ultrasonic vibration electrical discharge machining in gas.Journal of Materials Processing Technology,2002,129(1): 135-138.

[4] Tang C J,Kang X M,Zhao W S.Experimental study of submersed gas-jetting EDM.Electromachining & Mould,2008(3): 16-20.(in Chinese) 汤传建,康小明,赵万生.液中喷气电火花加工试验研究.电加工与模具,2008(3): 16-20.

[5] Tanimura T,Isuzugawa K,Fujita I,et al.Development of EDM in the mist.Proceedings of ISEM,1989,9: 313-316.

[6] Liu Z D.Metals controllable burning by EDM-induced efficient cutting technology: China,201110192863.2011-11-30.(in Chinese) 刘志东.电火花诱导可控烧蚀金属材料高效切削加工方法: 中国,201110192863.2011-11-30.

[7] Xia Y G,Gu L,Zhao W S.Developments and applications of dry-EDM and qqasi-dry-EDM.Electromachining & Mould,2007(6): 22-26.(in Chinese) 夏永高,顾琳,赵万生.干式和准干式电火花加工技术及应用.电加工与模具,2007(6): 22-26.

[8] Gunaji M V,Subhasish S,Beeson H D.Ignition and combustion of titanium and titanium alloys.ASTM Special Technical Publication,1995,1267: 81-85.

[9] Wang L,Liu Z D,Qiu M B,et al.Study of TC4 controllable burned grinding induced by electrical discharge.Acta Aeronautica et Astronautica Sinica,2012,33(8): 1524-1530.(in Chinese) 王琳,刘志东,邱明波,等.钛合金TC4电火花诱导可控烧蚀高效磨削技术研究.航空学报,2012,33(8): 1524-1530.

[10] Zhang M H.Theoretical basis of EDM.Beijing: National Defense Industry Press,1989: 53-54.(in Chinese) 张明辉.电火花加工理论基础.北京: 国防工业出版社,1989: 53-54.

[11] Liu J C,Bai J C,Guo Y F.Non-traditional machining.Beijing: China Machine Press,2009: 11-12.(in Chinese) 刘晋春,白基成,郭永丰.特种加工.北京: 机械工业出版社,2009: 11-12.

[12] Bai X,Zhang Q K,Li T T,et al.Research on the medium breakdown mechanism of powder mixed near dry electrical discharge machining.Journal of Mechanical Engineering,2012,48(7): 186-198.(in Chinese) 白雪,张勤河,李田田,等.混粉准干式电火花加工介质击穿机理研究.机械工程学报,2012,48(7): 186-198.

[13] Huang X,Cao C X,Ma J M,et al.Titanium combustion in aeroengines and fire-resistant titanium alloys.Journal of Materials Engineering,1997(8): 11-15.(in Chinese) 黄旭,曹春晓,马济民,等.航空发动机钛燃烧及阻燃钛合金.材料工程,1997(8): 11-15.

[14] Bolobov V I.Mechanism of self-ignition of titanium alloys in oxygen.Combustion,Explosion,and Shock Waves,2002,38(6): 639-645.

[15] Li L Q,Wang Z L,Zhao W S.Mechanism analysis of electrical discharge machining in gas.Journal of Harbin Institute of Technology,2004,36(3):359-362.(in Chinese) 李立青,王振龙,赵万生.气体放电加工机理分析.哈尔滨工业大学学报,2004,36(3): 359-362.

[16] Liu Y Q,Bai K W,Shen J Y,et al.Thermodynamic analysis of burn-resistance mechanism for Ti-Cr-V and Ti-Cr-Mo alloys.Chinese Journal of Rare Metals,1998,22(3): 204-207.(in Chinese) 刘玉芹,白克武,沈剑韵,等.Ti-Cr-V与Ti-Cr-Mo合金阻燃机理热力学分析.稀有金属,1998,22(3):204-207.

文章导航

/