用户名: 密码: 验证码:
基于气体介质的电火花铣削加工技术及机理研究
详细信息    本馆镜像全文|  推荐本文 |  |   获取CNKI官网全文
摘要
本文所研究的基于气体介质的电火花铣削加工技术主要指气中电火花铣削加工以及相应的超声辅助气中电火花铣削加工和浸液辅助气中电火花铣削加工。气中电火花加工技术由于具有环保安全、电极损耗率低等优点,使其适合应用于电火花铣削加工中,为电火花铣削加工工艺开辟了崭新的途径。超声辅助气中电火花铣削加工通过给工具电极施加超声振动来改善电火花加工状态以提高其加工效率的。浸液辅助气中电火花铣削加工是把工具电极与工件间的加工区域都浸没在液体中,避免了气中电火花铣削加工过程中排出的电蚀产物重新粘附在工件的加工表面等问题,使其加工效率和表面质量得以提高。
     从气中单脉冲放电实验研究和气中火花放电机理研究两个方面,对气中电火花铣削加工机理进行了较为深入的研究。气中单脉冲放电实验研究结果表明,正极性加工时工件上的单脉冲放电凹坑比负极性加工时的要大,且正极性加工时阳极的单脉冲蚀除量高于阴极的蚀除量;压缩空气为放电介质的单脉冲放电凹坑比常压空气下的单脉冲放电凹坑要大,且其放电凹坑的形状由于气流吹除作用而沿一定方向进行延伸;气中单脉冲放电凹坑都随着放电能量的增大而增大;通过气中单脉冲放电凹坑分析,建立了气中单脉冲放电凹坑直径的回归模型,得到了气中单脉冲放电凹坑直径与其主要因素的定量关系。分别从介质击穿、放电通道扩展、极间能量的转换分配、电蚀产物的抛出机理、介质的消电离以及连续脉冲的叠加效应等方面对气中火花放电机理进行了深入的研究。研究结果表明,气体火花放电是由Townsend击穿开始,逐步发展到流光击穿而形成的;气中放电通道的扩展要比液中放电通道扩展快;气中放电过程中电蚀产物的抛出主要是由热爆炸力、高压气流的吹除力、磁流体动力共同作用的结果,而对于硬脆材料,热应力蚀除起主导作用;气中电火花铣削加工过程中短路或拉弧现象频繁的原因主要在于放电间隙小而使得电蚀产物难以排出导致的。
     对气中电火花铣削加工的浸液辅助机理和超声辅助机理进行较为深入的研究。在浸液辅助气中电火花铣削加工过程中,尽管加工区域浸没在液体中,但由其极间压力状态知,充满极间放电间隙的放电介质仍为气体介质,其放电物理本质为气体介质放电;在超声振动辅助气中电火花铣削加工过程中,超声振动即使使放电间隙拉离了火花放电所允许的最大放电间隙,也不能拉断放电通道而提前中止放电脉冲,并得到了最大放电间隙公式,推得超声振动之所以改善气中放电加工状态主要是因为超声振动增大了其实际放电间隙范围。
     对气中电火花铣削加工的材料去除率和表面质量等基本工艺指标进行了较为系统的研究。从气中单脉冲放电蚀除特性研究出发建立了材料去除率模型,依据此模型可把各加工因素划分为影响单脉冲放电蚀除特性的加工因素和影响脉冲利用率的加工因素,并分析各加工因素对其材料去除率的影响规律,工艺实验结果验证了所建模型的有效性;还对比分析了气中电火花铣削加工和其浸液辅助加工方式不同的材料去除特性,研究结果表明,浸液辅助加工方式在较大脉冲能量参数下可获得较大的材料去除率,而在较小的脉冲能量参数下其浸液排屑效果不明显。从单脉冲放电凹坑形貌研究出发建立了气中电火花铣削加工的表面粗糙度模型,得到了重叠系数的取值规律,进行了相关参数的工艺实验分析,验证了所建模型的有效性;通过对比研究气中电火花铣削加工、其浸液辅助加工和油中电火花铣削加工的工件加工表面形貌状态,发现前两者的表面形貌要比后者平滑,前两者放电凹坑大而浅,后者的放电凹坑小而深。
     提出了一种新的气中电火花分层铣削加工工艺,并对其加工机床和工艺规划方法进行了较为系统的研究。开发了气中电火花分层铣削加工机床,此机床能够实现工件的X、Y伺服进给运动、工具电极的Z向伺服进给运动和工具电极的旋转超声振动。数控系统采用“IPC+PMAC”的开放式体系结构,可以实现气中电火花分层铣削加工以及相应的超声辅助加工和浸液辅助加工。根据气中电火花铣削加工特点,提出了相应的工艺规划策略。此工艺规划策略采用底面放电加工方式,初分层与次分层相结合的二次分层策略,轮廓环切与往复行切相结合的轨迹规划方式,间歇补偿的电极损耗补偿策略。依据气中电火花分层铣削加工特点及工艺规划策略,开发了相应的CAD/CAM系统。此系统采用Pro/E来完成加工工件的造型设计、工艺规划以及初始加工轨迹生成,然后依据PMAC数控系统的编码要求,对初始刀位轨迹进行后处理,生成满足加工机床要求的数控加工代码。并进行了三维结构实例的加工实验,验证了此工艺的可行性。
     对气中单脉冲放电的传热模型进行了数值仿真研究。分析了气中单脉冲放电的传热物理过程,推导出了热流密度载荷公式,并建立了气中单脉冲放电的传热数学模型,采用有限元数值分析软件ABAQUS对其数学模型进行了数值求解,计算结果验证了所建模型的有效性。
The research of this dissertation mainly focus on the technology of electrical discharge milling(ED-Milling) based on gas dielectric which is composed of three ED-Milling methods including conventional ED-Milling in gas,ultrasonic vibration aided ED-Milling in gas as well as gas medium ED-Milling submerged in liquid. Electrical discharge machining(EDM) in gas is suitable for ED-Milling as it owns numerous advantages such as safe and green dielectric,no fire trouble,low tool electrode wear,etc.So it provides a new path for ED-Milling.The principle of ultrasonic vibration aided ED-Milling in gas is that the machining performances and the machining status can be enhanced by means of ultrasonic vibration of the tool electrode. Gas medium ED-Milling submerged in liquid,a new-type ED-Milling process,immerse the machining area between the tool electrode and the workpiece during ED-Milling in gas to solve the machining debris adherence problem on the machining surface of the workpiece.
     The mechanism of ED-Milling in gas was studied through conducting single pulse discharge experimental research and analyzing the mechanism of EDM in gas.The following conclusions can be drawn from numerous single pulse discharge experiments. The single pulse discharge crater of the workpiece on the condition of the positive polarity is bigger than that on the condition of the negative polarity.The single pulse discharge crater of the workpiece is bigger than that of the tool electrode when the tool electrode is cathode and the workpiece is anode.The crater produced by single pulse discharge in the compressed air is bigger than that produced in the air and its form changes according to the fluid of the compressed air.The volume of the single pulse discharge crater increases as the pulse energy strengthens.The mechanism of ED-Milling in gas is further studied from the aspects of the breakdown of the dielectric, the spread of the discharging channel,the conversion and distribution of the discharging energy,the removal of the machining debris,the deionization as well as the integrated effect of the impulsive discharges.The results indicate that the discharging process during EDM in gas initially comes from Townsend breakdown process and then changes to streaming breakdown process.The discharging channel during EDM in gas expands more quickly than it does during conventional EDM.The removal of the machining debris during EDM in gas is concurrent results of the thermal expansion,the fluid of compressed gas,magnetic fluid dynamic force,while the thermal stress removal plays a dominant role in machining the hard-brittle material.
     The principles for ultrasonic vibration aided ED-Milling in gas and gas medium ED-Milling submerged in liquid were analyzed.According to the characteristics of the pressure status between electrodes,the medium between the tool electrode and the work piece for gas medium ED-Milling submerged in liquid is still gas dielectric.The mechanism of the effect of the tool electrode's ultrasonic vibration is that the machining efficiency and the machining status can be improved because ultrasonic vibration of the tool electrode can enlarge the practical discharge gap range.
     The fundamental machining performances such as material removal rate(MRR) and surface quality were studied systematically.The model of MRR for ED-Milling in gas was developed based on the characteristics of material removal of single pulse discharge from which the machining parameters can be divided into two groups including the parameters affecting the characteristics of material removal of single pulse discharge and the parameters affecting pulse usage factor.The model has been verified by process experimental research.By comparing the rule of MRR for gas medium ED-Milling submerged in liquid with the MRR for ED-Milling in gas,the MRR of the former is much greater than that of the latter when the large pulse energy is chosen, while the MRR of the former is close to the MRR of the latter when the small pulse energy is chosen.The model of surface roughness for ED-Milling in gas was developed based on the form of single pulse discharge crater and its overlap coefficient has been deduced.The model has been verified by the process experimental research.By comparing the surface of the workpiece of ED-Milling in gas,gas medium ED-Milling submerged in liquid,EDM in oil dielectric,the shape of the firth two is smoother than that of the last one,and the craters of the former two items are big and shallow while the craters of the last one are small and deep.
     A novel ED-Milling method,electrical discharge layered milling in gas (EDL-Milling in gas),was developed.The machine tool and process plan strategy of the technology were studied systematically.The machine tool can accomplish the following functions,X-axis and Y-axis feed movement of the workpiece,and Z-axis feed movement of the tool electrode,the generation movement of the rotary movement and ultrasonic vibration of the tool electrode.The machining process is controlled by an open system architecture CNC system based on "IPC+PMAC".The machine tool is applicable in these processes including EDL-Milling in gas,ultrasonic vibration aided EDL-Milling in gas as well as gas medium EDL-Milling submerged in liquid.Process plan strategies for EDL-Milling in gas were developed according to the machining features of the process.Bottom milling method,twice-layered slicing strategy,tool path planning algorithm with the couple of direction-parallel machining and contour machining path as well as the semi-online periodical compensation method were developed.CAD/CAM system can be accomplished through the following procedures. Drawing of the workpiece,process plan strategy,and initial tool path generation can be accomplished by the commercial software Pro/E.NC code accepted by CNC system can be acquired through post-processing procedure.3-D machining samples have verified the feasibility of the approach.
     Numerical solutions to the thermal model of EDM in gas were studied.The mathematical model of the thermo-physical procedure was built and the formula of distributed surface flux was deduced.Mathematical model can be calculated through FEM(finite element method) software ABAQUS.The results of the FEM analysis have verified the feasibility of the mathematical model of EDM in gas.
引文
1 刘晋春,刘家齐,赵万生.特种加工.北京:机械工业出版社,1997
    2 K.H.Ho,S.T.Newman.State of the art electrical discharge machining.Journal of Materials Processing Technology.2003,(43):1287-1300
    3 赵万生.先进电火花加工技术.北京:国防工业出版社,2003
    4 张勤河,张建华,杜如虚,艾兴.电火花成形加工技术的研究现状和发展趋势.中国机械工程.2005,16(17):1586-1592
    5 P.Krajnik,J.Kopac.Modern machining of die and mold tools.Journal of Materials Processing Technology.2004,157-158:543-552
    6 Masanori Kunieda.Challenges in EDM Technology.Int.J.Japan Soc.Prec.Eng.1999,33(12):276-282
    7 Kunieda M.,Masuzawa T..A Fundamental Study on a Horizontal EDM.Annals of the CIRP.1988,37(1):187-190
    8 D.Kremer,J.L.Lebrun,B.Hosari,A.Moisan.Efects of ultrasonic vibrations on the performances in EDM.Annals of the CIRR 1989,38(1):199-202
    9 D.Kremer,C.Lhiaubt,A.Moisan.A study of the efect of synchronizing ultrasonic vibrations with pulses in EDM.Annals of the CIRR 1991,40(1):211-214
    10 Thoe T.B.,Aspinwall D.K.,Killey N.Combined Ultrasonic and Electrical Discharge Machining of Ceramic Coated Nickel Alloy.Journal of Materials Processing Technology.1999,93(1):323-328
    11 Zhao Wansheng,Wang Zhenlong,Di Shichun.Ultrasonic and Electric Discharge Machining to Deep and Small Hole on Titanium Alloy.Journal of Materials Processing Technology.2002,120(2):101-106
    12 高屋勉,三好幸德,国枝正典.外压法によゐ気中放電加工の試み.電気加工学会全国大会(2002)講演論文集:1-4
    13 Min Hu,Zhaoying Zhou,Yong Li et al.Development of a linear electrostrictive servo motor.Precision Engineering.2001,25(4):316-320
    14 Hasan Ocak,Kenneth A.LoparoEstimation of the running speed and bearing defect frequencies of an induction motor from vibration data.Mechanical Systems and Signal Processing.2004,18(3):515-533
    15 Min-Fu Hsieh,Chin-Juei Tung,Wu-Sung Yao,etal.Servo design of a vertical axis drive using dual linear motors for high speed electric discharge machining.International Journal of Machine Tools and Manufacture.2007,47(3-4):546-554
    16 Mu-Tian Yan,Yau-Jung Shiu.Theory and application of a combined feedback-feedforward control and disturbance observer in linear motor drive wire-EDM machines.International Journal of Machine Tools and Manufacture.2008,48(3-4):388-401
    17 Hideki Takezawa,Hiroaki Hamamatsu,Naotake Mohri,etal.Development of micro-EDM-center with rapidly sharpened electrode.Journal of Materials Processing Technology.2004,149(1-3):112-116
    18 Masanori Kunieda,Yukinori miyoshi,et al.High Speed 3D Milling by Dry EDM.Annals of the CIRP.2003,152(1):147-150
    19 J.Park,S.Keller,G.P.Carman,H.T.Hahn.Development of a compact displacement accumulation actuator device for both large force and large displacement.Sensors and Actuators A:Physical.2001,90(3):191-202
    20 Marco Boccadoro,D.F.Dauw.About the Application of Fuzzy Controllers in High-Performance Die-Sinking EDM Machines.CIRP Annals-Manufacturing Technology.1995,44(1):147-150
    21 A.K.M.De Silva,J.A.McGeough.Computer applications in unconventional machining.Journal of Materials Processing Technology.2000,107(1-3):276-282
    22 J.H.Zhang,H.Zhang,D.S.Su,et al.Adaptive fuzzy control system of a servomechanism for electro-discharge machining combined with ultrasonic vibration.Journal of Materials Processing Technology.2002,129(1-3):45-49,
    23 Yih-Fang Chang.Mixed H_2/H_∞ optimization approach to gap control on EDM.Control Engineering Practice.2005,13(1):95-104
    24 Narender Singh,K.Raghukandan,B.C.Pai.Optimization by Grey relational analysis of EDM parameters on machining Al-10%SiCP composites.Journal of Materials Processing Technology.2004,155-156:1658-1661
    25 Cao Fenggou,Yang Dayong.The study of high efficiency and intelligent optimization system in EDM sinking process.Journal of Materials Processing Technology.2004,149(1-3):83-87
    26 Yih-fong Tzeng,Fu-chen Chen.Multi-objective optimisation of high-speed electrical discharge machining process using a Taguchi fuzzy-based approach.Materials&Design.2007,28(4):1159-1168
    27 Shuvra Das,Mathias Klotz,F.Klocke.EDM simulation:finite element-based calculation of deformation,microstructure and residual stresses.Journal of Materials Processing Technology.2003,142(2):434-451
    28 Masanori Kunieda,Masahiro Yoshida.Electrical Discharge Machining in Gas.Annals of the CIRP.1997,46(1):143-146
    29 Masanori Kunieda,Yukinori miyoshi,et al.High Speed 3D Milling by Dry EDM.Annals of the CIRP.2003,152(1):147-150
    30 ZhanBo Yu,Takahashi J un,Kunieda Masanori.Dry electrical discharge machining of cemented carbide.Journal of the Materials Processing Technology.2003,149:353-357
    31 顾琳,赵万生,张志华,康小明.喷雾电火花铣削加工及其机理的分析.电加工与模具.2006,(2):1-4
    32 C.C.Kao,Jia Tao and Albert J.Shih.Near dry electrical discharge machining.International Journal of Machine Tools and Manufacture.2007,47(15):2273-2281
    33 Furutani,K.,Enami T.,Mohri N..Dot-Matrix Electrical Discharge Machining for Shaping Fine Structure.IEEE,1997:180-185
    34 Wansheng ZHAO,Li LI,Yonggao XIA,Lei LI.Bunched-Electrode for Electrical Discharge Machining.ISEMXV,Pittsburgh,2007:41-44
    35 Zhao Jianfeng,Li Yue,Zhang J ianhua.Analysis of the Wear Characteristics of an EDM Electrode Made by Selective Laser Sintering.Journal of Materials Processing Technology,2003,138(2):475-478
    36 郭彩芬,赵国光.电流斜率控制电火花加工中的电极损耗.电加工.1995,(5):6-8
    37 张云,周继烈,王家平.硬质合金电火花加工高效低损新技术的研究.机电工程.1995,(4):47-48
    38 孟庆国,赵万生,赵新通.大面积混粉电火花加工机理探讨.中国机械工程.2002,13(11):904-906
    39 Pecas P.,Henriques E..Influence of Silicon Powder-mixed Dielectric on Conventional Electrical Discharge Machining.International Journal of Machine Tools and Manufacture.2003,43(14):1465-1471
    40 Mat sugi K.,Kuramoto H..Temperature Distribution at Steady State under Constant Current Discharge in Spark Sintering Process of Ti and Al2O3 Powders.Journal of Materials Processing Technology.2004,146(1):274-81
    41 王辉,赵福令,吕战竹等.混粉电火花加工中粉末对极间电容和放电间隙的影响.航空制造技术.2004,(6):100-102
    42 孟庆国,赵万生.混粉电火花镜面加工试验研究.机械工程学报.2002,38(3):64-68
    43 赵万生,孟庆国,刘维东等.混粉电火花镜面加工技术的研究进展.中国机械工程.2001,24(4):466-469
    44 高正一,王春生,阚绪平.超声混粉电火花复合镜面加工.见:2001年中国机械工程学会年会暨第九届全国特种加工学术年会论文集.北京:机械工业出版社.2001:111-113
    45 迟恩田,任中根,张云鹏等.超声磨料混粉电火花复合加工的研究.电加工与模具.2003,(3):29-32
    46 赵福令,吕战竹,张宝荣.混粉电火花加工工艺特性的研究.科学技术与工程.2003,3(6):573-576
    47 赵万生,韦红雨,刘维东,狄士春.应用线电极磨削法的电火花微孔加工.电加工.1997,(3):13-15
    48 王振龙,赵万生.微制造系统中的微细电火花加工技术.机械制造与机床.2003,(9):23-27
    49 T.Masuzawa,M.Fujino,K.Kobayashi.Wire Electro-Discharge Grinding for Micro-Machining.Annals of the CIRP.1985,34(1):431-434
    50 Yong Li,Min Guo,Zhaoying Zhou,Min Hu.Micro electro discharge machine with an inchworm type of microfeed mechanism.Journal of the International Societies for Precision Engineering and Nanotechnology.2002,26:7-14
    51 赵万生,刘维东,王振龙差动往复式微型电火花加工装置的研究.机械工程学报.2000,36(9):65-68
    52 Zhao W.S.,Zhang Y.,Wang Z.L,et al.Research on a micro EDM equipment and its application.Key Engineering Materials.2004,259-260:567-571
    53 左雪平,赵万生.蠕动式压电驱动微小型电火花加工装置的单片机控制系统.电加工.1999,(6):12-16
    54 贾宝贤,边文风,赵万生.宏微复合进给机构及其在微细电火花加工中的应用.航空精密制造技术.2004,20(4):12-15
    55 雷卫东,朱荻.微细孔电加工技术.航空精密制造技术.2001,(3):11-15
    56 韩福柱,陈丽等.微细电火花加工用脉冲电源技术的基础研究.电加工与模具,2005,(6):9-11
    57 张立新.微细电火花加工用脉冲电源的研究现状及发展趋势.吉林工程技术师范学院学报(自然科学版).2005,21(6):40-43
    58 Kai Egashira,Akihiro Matsugasako,Hachiro Tsuchiya,Makoto Miyazaki.Electrical discharge machining with ultralow discharge energy.Precision Engineering.2006,30:414-420
    59 李文卓,颜国正.RC脉冲电源维持电压问题的研究.电加工与模具.2005,(4):10-13
    60 Fleischer J.,Masuzawa T.New Applications for Micro-EDM.Journal of Materials Processing Technology.2004,149(1):246-249
    61 Yu Z.Y.,Rajurkar K.P.,Shen H..High Aspect Ratio and Complex Shaped Blind Micro Holeby Micro EDM.Annals of the CIRP.2002,51(1):359-362
    62 李勇,郭曼,李芳等.微细电火花加工设备技术研究.制造技术与机床.2002,(5):12-14
    63 王振龙,赵万生,迟关心等.微三维结构型腔的微细电火花加工.微细加工技术.2000,(1)71-74
    64 赵万生,李志勇,王振龙.微三维结构电火花铣削关键技术研究.微细加工技术.2003,(3):49-55
    65 王吉团.保证安全,保护环境,促进特种加工技术的持续发展.中国机械工程.2001,12(7):832-835
    66 S.H.Yeo,H.C.Tan,A.K.New.Assessment of waste streams in electric-discharge machining for environmental impact analysis.Proceedings of the Institution of Mechanical Engineers,Part B:Journal of Engineering Manufacture.1998,212(5):393-401
    67 Fabio N.Leao,Ian R.Pashby.A review on the use of environmentally friendly dielectric fluids in electrical discharge machining.Journal of Materials Processing Technology.2004,149(1-3):341-346
    68 狄士春,王弢,于滨,赵万生.电火花加工脉冲电源研究现状与发展趋势.航空精密制造技术.2002,38(4):15-18
    69 S.T.Jilani,P.C.Pandey.Experimental investigations into the performance of water as dielectric in EDM.Int.J.Math.Tool Des.Res.1984,(24):31-43
    70 S.L.Chen,B.H.Yan,F.Y.Huang.Influence of kerosene and distilled water as dielectrics on the electric discharge machining characteristics of Ti-6Al-4V.Journal of Materials Processing Technology.1999,87(1-3):107-111
    71 T.Masuzawa,K.Tanaka,Y.Nakamura.Water-based dielectric solution for EDM.Annals of CIRP.1983,(32):119-122
    72 Jeswani,M.L..Electrical discharge machining in distilled water.Wear.1981,72(10):81-88
    73 狄士春,姜吉涛,迟关心,韦东波.节能型电火花加工脉冲电源研究现状及发展趋势.机械工程师.2005(8):26-28
    74 王玉魁,宋博岩,王振龙,赵万生.节能式电火花加工脉冲电源的系统设计.中国机械工程.2006,17(17):1783-1786
    75 曹凤国,桂小波.大面积PCD复合片电火花加工高效节能脉冲电源的研究.金刚石与磨料磨具工程.2004(2):17-19
    76 何永辉.高效节能式电火花加工脉冲电源的研究.哈尔滨工业大学博士学位论文.1995:24-27
    77 赵万生,宋博岩,狄士春,何永辉.逆变式电火花加工脉冲电源的研究.哈尔滨工业大学学报.1997,29(6):112-115
    78 狄士春,韦东波,姜吉涛,迟关心.新型节能电火花加工脉冲电源的研究.航空精密制造技术.2006,42(1):33-35
    79 赵万生,郭永丰,耿春明.国外电火花加工最新技术.见:2001年中国机械工程学会年会暨第九届全国特种加工学术年会论文集.北京:机械工业出版社.2001:6-13
    80 Ishida T.,Kogure S.Creation of Long Curved Hole by Means of Electrical Discharge Machining Using an In-pipe Movable Mechanism.Journal of Materials Processing Technology.2004,149(1):157-164
    81 刘永红,杨毅,贾宝贤.曲线电火花加工SMA机器人的研究.中国机械工程.2001,12(8):946-948
    82 Fukuzawa Y.,Mohri N.,Tani T..Machining Characteristics of Insulating Ceramics.Indust rual Ceramics.2001,21(3):187-189
    83 Tani T.,Fukuzawa Y..Machining Phenomena in WEDM of Insulating Ceramics.Journal of Materials Processing Technology.2004,149(1):124-128
    84 徐盛林.绝缘体的电火花加工技术.电加工与模具.2002,(2):41-43
    85 徐小兵.绝缘性陶瓷电火花加工原理和辅助电极膜制备探讨.新技术新工艺.2003,(5)17-18
    86 郭永丰,黄荣和,李常伟等.非导电材料的电化学电火花复合加工工艺研究.电加工.1998,(6):23-25
    87 李小朋,刘永红,纪人杰等.非电参数对非导电工程陶瓷电火花磨削效果的影响.机械设计与制造.2007,(3):100-103
    88 毛利尚武,斋藤畏男.表面改質放电加工.精密工学会誌.1998,64(12):1715-1718
    89 Mohri N.,Takezawa H.,Furutani K.,et al.A New Process of Additive and Removal Machining by EDM with a Thin Elect rode.Annals of the CIRP.2000,49(1):123-126
    90 Hayakawa S.,Itiro O.R.,Itoigawa F.,et al.Fabrication of Microst ructure Using EDM Deposition.The 13th International Symposium for Electromaching(ISEM ⅩⅢ),Bilbao,Spain,2001
    91 金柏冬,曹国辉,王振龙等.空气中微细电火花沉积的工艺规律研究.中国机械工程.2006,17(2):111-115
    92 Miyano K..Generative Machining Method(EDM center).Journal of Machine and Tool,1981(3):86-93
    93 Suzuki M.,et al.An atempt of Electrodischarge Machining on a Machining Center.Proc.of ISEM=Ⅸ,Nagoya,1989:38-41
    94 Saito K.,et al.Development of Numerical Contouring Control Electric Discharge Maehining(NCC-EDM).Annuals of the CIRP,1986,35(1):117-120
    95 Kaneto T.,Tsuchiya M.,Fukushima T.Improvement of 3D NC Contouring EDM Using Cylindrical Electrodes.Proc.Of ISEM-Ⅸ,Nagoya,1989:p364-36
    96 Mohri N.,Suzuki M.,Furuya M.,Saito K.Electrode Wear Proeess in Eleetrieal Discharg Machining.Annals of the CIRP,1995,44(1):p165-16
    97 M.Bayramoglu,A.W.Duffill..Systematic investigation on the use of cylindrical tools for the production of 3D complex shapes on CNC EDM machines,Int.J.Math.Tools Manuf.,1994,34(3):327-339
    98 M.Bayramoglu,A.W.Dufill..Manufacturing Linear and Circular Contours Using NC EDM and Frame Type Tools.Int.J.Mach.Tools Manufact.,1994,35(8):1125-1136
    99 J.P.Kruth,B.Lauwers,W.Clappaert.A study of EDM pocketing,10th International Symposium on Electromachining(ISEM),1992:121-135
    100 P.Bleys,J.P.Kruth,B.Lauwers,et al.Real-time tool wear compensation in milling EDM,Ann.CIRP,2002,51(1):157-160
    101 J.P.Kruth,P.Bleys.Machining curvilinear surfaces by NC electro-discharge machining,in:Proceedings of the Second International Conference on MMSS,Krakow,2000:271-294
    102 P.Bleys,J.P.Kruth,B.Lauwers.Sensing and compensation of tool wear in milling EDM,J.Mater.Process.Technol.,2004,149(1):139-146
    103 刘光壮,杨晓冬,赵万生.AUTOCAD在电火花铣削自动编程中的应用.电加工,1998(3):8-10
    104 刘光壮,杨晓冬,迟关心,等.电火花铣削加工技术及其发展状况.电加工,1998(1):1-5
    105 赵万生,杨洋.基于IGES文件的电火花铣削的分层策略研究.电加工与模具,2002(5):5-8
    106 衣建刚,刘正埙.电火花数控仿铣加工成形规律的研究.电加工,1998(3):11-12
    107 员敏,于源,王小椿.基于混合八叉树模型的电火花数控加工仿真研究.组合机床与自动化加工技术,2001(9):9-12
    108 员敏,于源,王小椿.模拟退火算法在电火花创成加工中的应用,电加工,2001(4):20-23
    109 李翔龙,殷国富,石华刚.电火花加工模糊驱动系统的研究机床与液压.2003,(1):209-210
    110 李翔龙,殷国富.基于智能技术的电火花加工过程建模和参数优化.机械科学与技术,2002,21(4):623-62
    111 秦月霞,胡德金.基于开放式数控系统三轴联动电火花铣削加工的研究.机械与电子,2003(5):9-10
    112 M.Fujino,N.amoto,T.suzawa.Development of Multi-Purpose Microprocessing Machine.Proc.Of ISEM=Ⅺ,Lausanne,1995:2-8
    113 Zuyuan Yu,Takahisa Masuzawa,Masatoshi Fujino.3D Miero-EDM with Simply Shaped Electrode,Annals of the CIRP,1997,46(1):1-8
    114 Zuyuan Yu.Three Dimensional Miero-EDM Using Simple Electrodes.Dissertation for Doctoral Degree of University of Tokyo,1997:p54.62
    115 狄士春,王振龙等电极等损耗微细电火花加工技术电加工.1998(2):1-3
    116 高德东,田凌,郁鼎文等.微细电火花铣削加工CAD/CAM系统实现.计算机辅助设计与图形学学报.2006(11):1776-17780
    117 李立青,赵万生,狄士春,迟关心.气体介质中电火花铣削加工工艺实验研究.南京理工大学学报.2006,30(1):12-16
    118 M.unieda,S.Furuoya.Improvement of EDM eficiency by supplying oxygen gas into gap.Annals of the CIRP.1991,40(1):215-218
    119 何广敏,赵万生,郭永丰,刘晋春.混气电火花镜面加工的研究.制造技术与机床.2000(3):43-45
    120 李立青,赵万生,孟庆国,郭永丰.关于介质混气电火花加工机理的分析.电加工与模具.2001,(5):14-15
    121 Masanori Kunieda,Tsutomu Takaya,Shintaro Nakano.Improvement of Dry EDM Characteristics Using Piezoelectric Actuator.Annals of the CIRP.2004,53(1):183-186
    122 M.Yoshida,M.Kunieda.Study on mechanism for minute tool electrode wear in dry EDM.Seimitsu Kogaku Kaishi,Journal of the Japan Society for Precision Engineering 1999,65(5):689-693
    123 L.Q.Li,Y.F.Guo,J.Ch.Bai and Z.L.Wang.Experimental study on Dry ED-Milling using taguchi method.Proceedings of the 15th international symposium on electromachining.2007:191-295
    124 L.Q.Li,W.S.Zhao,Z.L.Wang,et al.Discussion of electrical discharge machining in gas.The 31st IEEE International Conference on Plasma Science 2004,Plasma Science,2004:307-312
    125 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
    126 李立青,赵万生,狄士春,迟关心.气体介质中电火花铣削加工工艺实验研究.南京理工大学学报.2006,30(1):12-16
    127 李立青.气体介质中电火花成形加工工艺技术研究.哈尔滨工业大学博士学位论文.2005:30-38
    128 徐胜林.气体中的放电加工工艺,第九届全国特种加工学术年会论文集.苏州,2001.北京:机械工业出版社.2001:97-101
    129 高上品.气体中电火花加工的研究开发.机械制造.2005,43(486):51-53
    130 Kunieda M.,Fumdatc C..High precision finish cuting by dry WEDM.Annals of the CIRR 2001,50(1):121-124
    131 #12
    132 #12
    133 T.Wang,M.Kunieda.Dry WEDM for finish cut.Key Engineering Materials.2004,259(2):562-566
    134 王彤,陈玉全,国枝正典.气中电火花线切割加工技术研究.机械工程学报.2003,39(8):76-80
    135 王彤.硬质合金气中电火花线切割精加工技术研究.哈尔滨理工大学学报2003,8(4):34-37
    136 Q.H.Zhang,R.Du,J.H.Zhang,Q.Zhang.An investigation of ultrasonic-assisted electrical discharge machining in gas.International Journal of Machine Tools &Manufacture An investigation of ultrasonic-assisted electrical discharge machining in gas.2006,46(12-13):1582-1588
    137 Q.H.Zhang,J.H.Zhag,S.F.Ren,Z.W.Niu and X.Ai.A theoretical model of surface roughness in ultrasonic assisted electrical discharge machining in gas.Journal of Materials Processing Technology.2005,7:381-390
    138 Q.H.Zhang,J.H.Zhang,J.X.Deng,Y.Qin,Z.W.Niu..Ultrasonic vibration electrical discharge machining in gas.Journal of Materials Processing Technology.2002,129:135-138
    139 徐明刚,张建华,张勤河,任升峰.超声振动辅助气体介质电火花加工研究.中国机械工程.2006,17(14):1447-1450
    140 徐明刚,张建华,张勤河,李丽,任升峰.超声振动辅助气体介质电火花加工机理研究.电加工与模具,2005,6:34-37
    141 徐明刚,张建华,张勤河,任升峰.超声振动改善气体介质电火花加工的机理研究.中国机械工程.2007,18(11):1261-1264
    142 A.Curodeau,M.Richard,et al.Molds surface finishing with new EDM process in air with thermoplastic composite electrodes.Journal of Materials Processing Technology.2004,149(6):278-283
    143 王艳,邓琦林,胡德金,傅文宏.金刚石砂轮修整新技术的研究.电加工与模具.2003,5:1-6
    144 Lin GU,Wansheng ZHAO,Li LI,Yonggao ⅪA.Electrical Discharge Machining in Jetted Mist.Proceedings of the 15th international symposium on electromachining,2007:297-300
    145 J.Tao,A.J.Shih.Dry and Near-Dry Electrical Discharge Milling Processes.Proceedings of the 15th international symposium on electromachining,2007:275-280
    146 C.C.Kao,J.Tao and A.J.Shih Water Mist Near Dry Wire and Drilling Electrical Discharge Machining and Gap Distance Modelling.Proceedings of the 15th international symposium on electromachining,2007:281-286
    147 郭宝升.电火花加工放电机理研究.北京科技大学硕士学位论文.2003.3:46-62
    148 张勤河.超声振动辅助气中放电加工技术及其机理研究.山东大学工学博士学位论文.2003:40-42
    149 A.Kojima,W.Natsu,and M.Kunieda.Observation of Arc Plasma Expansion and Delayed Growth of Discharge Crater in EDM.Proceedings of the 15th international symposium on electromachining,2007:1-4
    150 R.Perez,J.Carron,M.Rappaz.Measurement and Metallurgical Modeling of the Thermal Impact of EDM Discharges on Steel.Proceedings of the 15th international symposium on clectromachining,2007:17-22
    151 李明辉.电火花加工理论基础.北京:国防工业出版社,1989:430-434
    152 董占山.第七讲MINITAB在回归与相关分析中的应用(续).计算机与农业.1998,(2):31-35
    153 杨津基.气体放电.北京:科学出版社,1983
    154 李翰如.电介质物理导论.成都科技大学出版社,1990
    155 高树香,陈宗柱气体导电(上册).南京:南京工学院出版社.1988
    156 Patel,M.R.,Barrufet,M.A.,Eubank et al.Theoretical models of the electrical discharge machining process.Ⅱ.The anode erosion model,Journal of Applied Physics,1989,66(9):4104-4111
    157 DiBitonto,D.D.Eubank,P.T.Patel,M.R.Barrufet,M.A..(1989) Theoretical models ofthe electrical discharge machining process.Ⅰ.A simple cathode erosion model,Journal ofApplied Physics 66(9) 4095-4103
    158 Yeo,S.H.,Kumia.W.,Tan.P.C..(2007) Electro-thermal modelling of anode and cathode in micro-EDM,Journal of Physics D:Applied Physics 40(8) 2513-2521
    159 徐明刚.超声振动—气体介质电火花复合加工技术及机理.山东大学工学博 士学位论文.2007:25-28
    160 朱凯,王建,何新锋等.交流伺服日趋成熟.新自动化.2005,4:42-44
    161 舒志兵,陈先锋.现代交流伺服系统及其在数控加工中的应用.电气时代.2004,12:146-147
    162 冯若.超声手册.南京大学出版社,南京,2001
    163 Delta Tau Data Systems,Inc.PMAC/PMAC2 SOFTWARE REFERENCE MANUALMAN
    164 周艳红,周云飞,周济.复杂型腔CNC直接加工轨迹规划原理与算法.华中理工大学学报.1995,23(6):1-5
    165 王水来,阮雪榆,周济.复杂型腔的行切加工.中国机械工程.1997,8(4):55-58
    166 李建国.电火花仿铣加工轨迹环切特征单元生成算法研究.机械设计与制造.2006,4:140-142.
    167 Wansheng Zhao,Yang Yang,Zhenlong Wang,Yong Zhang.A CAD/CAM system for micro-ED-milling of small 3D freeform cavity.Journal of Materials Processing Technology.2004,149:573-578
    168 戴向国.Pro/ENGINEER CAM技术基础教程.北京:人民邮电出版社,2002
    169 付振山,霍孟友.数控加工程序的语法和仿真检查.工具技术,2004,38(41):56-58
    170 Murali.M.S.,Yeo.S..H.Process simulation and residual stress estimation of microelectrodischarge machining using finite element method,Japan Journal of Applied Physics,2005,44:5254-5263
    171 Yeo.S.H.,Kurnia.W.,Tan.P.C..Electro-thermal modelling of anode and cathode in micro-EDM,Journal of Physics D:Applied Physics,2007,40(8):2513-2521.
    172 Das.S.,Koltz.M.,Klocke.F..EDM simulation:finite element-based calculationof deformation,microstructure and residual stress,Journal of Materials ProcessingTechnology,2003,142:434-451
    173 Lasagni.A.,Soldera.F.,Mucklich.F..FEM simulation of local heating and melting during electrical discharge plasma impact,Modelling and Simulation in Materials Science and Engineering,2004,12:835-844
    174 亓利伟,楼乐明,李明辉.放电通道的波动性与电火花加工机理.上海交通大学学报,2001,35(7):989-992
    175 孟庆国,王刚,赵万生.混粉电火花加工温度场的计算与分析.电加工与模具,2000(2):3-6
    176 于丽丽,刘永红,徐玉龙等.绝缘工程陶瓷电火花加工温度场模拟.自然科学进展,2008,18(2):236-240
    177 黄志刚,郭钟宁.单脉冲电火花加工温度场的有限元分析.广东工业大学学报,2002,19(4):38-43
    178 张建华,孟艳华,刘承帅等.超声振动辅助气中放电加工温度场模拟.工具技术,2004,38:69-71
    179 徐明刚,张建华,任升峰等.气体介质电火花加工单脉冲放电温度场分析.电加工与模具,2006(5):14-16
    180 张学学,李桂馥,史琳等.热工基础(第二版).北京:高等教育出版社,2006
    181 Y.W.Chan.Computer Simulation of Heat Flow in Pulses Current Arc Welding.Metal Construction.1987(10):599-606
    182 A.E.Kannatey,N.Kikuchi and A.Jallad.Experimental Finite Element Analysis of Temperature Distribution during Arc Welding.Journal of Engineering Materials and Technology.1989,111:9-18
    183 张家荣,赵廷元.工程常用物质的热物理性质手册.北京:新时代出版社,1987
    184 叶大伦,胡建华.实用无机物热力学数据手册.北京:冶金工业出版社,2002

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700