电火花深孔加工中螺旋电极对间隙流场影响研究

常皓; 王文建; 王昕妍; 刘宇; 张文超

doi:10.13433/j.cnki.1003-8728.20200081

电火花深孔加工中螺旋电极对间隙流场影响研究

doi: 10.13433/j.cnki.1003-8728.20200081

常皓^1,,
王文建²,
王昕妍³,
刘宇^4, ,,
张文超⁴

1.
郑州职业技术学院机械工程系，郑州　450121
2.
陕西铁路工程职业技术学院，陕西渭南　714000
3.
郑州地铁集团有限公司，郑州　450000
4.
大连交通大学机械工程学院，辽宁大连　116028

基金项目: 国家自然科学基金面上项目（51875074）、辽宁省自然科学基金指导计划项目（20180550425）及河南省科技厅科技攻关项目（212102210314）

详细信息

作者简介:
常皓（1994−），助教，硕士，研究方向为微细特种加工，计算流体力学理论与应用，changhaosc@163.com

通讯作者:
刘宇，教授，博士生导师，liuyu_ly12@126.com

中图分类号: TG661
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- 文章访问数: 197
- HTML全文浏览量: 57
- PDF下载量: 20
- 被引次数: 0
出版历程
- 收稿日期: 2019-11-13
- 网络出版日期: 2021-04-16
- 刊出日期: 2021-04-16

Exploring Effect of Spiral Electrode on Gap Flow Field in Deep-hole Electrical Discharge Machining

1.
Department of Mechanical Engineering, Zhengzhou Technical College, Zhengzhou 450121, China
2.
Shaanxi Railway Institute, Weinan 714000, Shaanxi, China
3.
Zhengzhou Metro Group Co., Ltd., Zhengzhou 450000, China
4.
School of Mechanical Engineering, Dalian Jiaotong University, Dalian 116028, Liaoning, China

摘要

摘要: 针对电火花深孔加工过程中排屑问题，提出采用螺旋电极改善加工间隙的流场环境。为探究螺旋电极的螺旋角和电极的旋转方向对排屑产生的影响，利用Fluent软件建立不同螺旋角电极下间隙流场的流体动力学模型，分析了螺旋电极不同螺旋角及不同旋转方向对间隙流场及电蚀产物运动的影响。结果表明，采用45°螺旋角的螺旋电极进行加工其排屑效果最好，螺旋电极正向旋转加工更有利于电蚀产物排出加工间隙。
- 电火花深孔加工 /
- 螺旋电极 /
- 间隙流场 /
- Fluent
Abstract: Spiral electrode is considered to improve the flow field environment of machining gap on chip removal in Electrical Discharge Machining (EDM) of deep holes. To explore the helical angle and direction of rotation have an influence on chip removal in spiral electrode. In this paper, the fluid dynamics model that different helix Angles of electrodes is established by Fluent simulation software. It is analyzed that the effect of different spiral Angle and rotation direction on the flow field and debris removal. Simulation result shows that the effect of debris removal that use of spiral electrode with 45° angle is best. The positive rotation machining of spiral electrode is more advantageous to removal debris from machining gap.
- deep-holeelectrical discharge machining (EDM) /
- spiral electrode /
- gap flow field /
- fluent software

HTML全文

图 1 采用螺旋电极的电火花深孔加工电蚀产物运动过程

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图 2 间隙流场仿真模型

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图 3 圆柱电极对电蚀产物和间隙流场影响

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图 4 螺旋电极对电蚀产物和间隙流场影响

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图 5 在加工时间为0.01 s时电蚀产物在竖直方向的运动高度（正向旋转）

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图 6 加工时间0.01 s时刻电蚀产物在竖直方向微粒数量统计（正向旋转）

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图 7 在0.01 s内侧面间隙电蚀产物数量统计（正向旋转）

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图 8 加工时间0.01 s时刻电蚀产物在竖直方向的运动高度（反向旋转）

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图 9 加工时间0.01 s时刻电蚀产物在竖直方向微粒数量统计（反向旋转）

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图 10 在0.01 s内侧面间隙电蚀产物数量统计图（反向旋转）

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参考文献(15)

[1]	KUMAR K, RAWAL S K, SINGH V P, et al. Experimental study on diametric expansion and taper rate in EDM drilling for high aspect ratio micro holes in high strength materials[J]. Materials Today: Proceedings, 2018, 5(2): 7363-7372 doi: 10.1016/j.matpr.2017.11.406
[2]	FENG G L, YANG X D, CHI G X. Experimental and simulation study on micro hole machining in EDM with high-speed tool electrode rotation[J]. The International Journal of Advanced Manufacturing Technology, 2019, 101(1): 367-375
[3]	NI H, GONG H, DONG Y H, et al. A comparative investigation on hybrid EDM for drilling small deep holes[J]. The International Journal of Advanced Manufacturing Technology, 2018, 95(1-4): 1465-1472 doi: 10.1007/s00170-017-1282-1
[4]	TANJILUL M, AHMED A, KUMAR A S, et al. A study on EDM debris particle size and flushing mechanism for efficient debris removal in EDM-drilling of Inconel 718[J]. Journal of Materials Processing Technology, 2018, 255: 263-274 doi: 10.1016/j.jmatprotec.2017.12.016
[5]	刘泽祥, 张斌. 微小深孔加工综述[J]. 新技术新工艺, 2019(1): 1-10 LIU Z X, ZHANG B. Summary of micro deep holes machining[J]. New Technology & New Process, 2019(1): 1-10 (in Chinese)
[6]	贾宝贤, 王振龙, 赵万生. 基于特种加工的微小孔加工技术[J]. 电加工与模具, 2005(2): 1-5 doi: 10.3969/j.issn.1009-279X.2005.02.001 JIA B X, WANG Z L, ZHAO W S. Techniques of machiningmicro holes based on non-traditional machining[J]. Electromachining & Mould, 2005(2): 1-5 (in Chinese) doi: 10.3969/j.issn.1009-279X.2005.02.001
[7]	王志强, 宫虎, 房丰洲. 双螺旋电极在深微孔电火花加工中的研究[J]. 中南大学学报, 2015, 46(8): 2857-2862 doi: 10.11817/j.issn.1672-7207.2015.08.014 WANG Z Q, GONG H, FANG F Z. Micro hole machining using double helix electrodes in electro discharge machining[J]. Journal of Central South University , 2015, 46(8): 2857-2862 (in Chinese) doi: 10.11817/j.issn.1672-7207.2015.08.014
[8]	曹一龙, 曹明让, 郝岳峰, 等. 螺旋电极电火花小孔加工排屑仿真和试验[J]. 机械设计与研究, 2015, 31(1): 89-92 CAO Y L, CAO M R, HAO Y F, et al. The chip removal simulation and experimental research of EDM drilling with spiral electrode for small hole[J]. Machine Design and Research, 2015, 31(1): 89-92 (in Chinese)
[9]	陈远军. 基于流场分析的螺旋电极电解加工孔的研究[D]. 成都: 西华大学, 2015 CHEN Y J. Based on flow field analysis of the spiral electrode electrochemical machining hole[D]. Chengdu: Xihua University, 2015 (in Chinese)
[10]	梁智权. 流体力学[M]. 3版. 重庆: 重庆大学出版社, 2008 LIANG Z Q. Fluid mechanics[M]. 3rd ed. Chongqing: Chongqing University Press, 2008 (in Chinese)
[11]	朱红钧. FLUENT15.0流场分析实战指南[M]. 北京: 人民邮电出版社, 2015 ZHU H J. FLUENT 15.0 practical guide for flow field analysis[M]. Beijing: Post & Telecom Press, 2015 (in Chinese)
[12]	YOSHIDA M, KUNIEDA M. Study on the distribution of scattered debris generated by a single pulse discharge in EDM process[J]. International Journal of Electrical Machining, 1998(3): 39-46
[13]	WANG J, HAN F Z. Simulation model of debris and bubble movement in consecutive-pulse discharge of electrical discharge machining[J]. International Journal of Machine Tools and Manufacture, 2014, 77: 56-65 doi: 10.1016/j.ijmachtools.2013.10.007
[14]	LIU Y, ZHANG W C, ZHANG S F, et al. The simulation research of tool wear in small hole EDM machining on titanium alloy[J]. Applied Mechanics and Materials, 2014, 624: 249-254 doi: 10.4028/www.scientific.net/AMM.624.249
[15]	常伟杰, 陈远龙, 张建华, 等. 超声振动辅助电火花铣削流场与蚀除颗粒分布场仿真[J]. 应用基础与工程科学学报, 2015, 23(S1): 151-157 CHANG W J, CHEN Y L, ZHANG J H, et al. Ultrasonic vibration aided electrical-discharge milling flow field and debris distribution field simulation[J]. Journal of Basic Science and Engineering, 2015, 23(S1): 151-157 (in Chinese)