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1.
  总被引:6,自引:0,他引:6  
A desktop multiprocess machinery has been designed that has two concepts: miniaturizing of machine tool and multiprocessing with a same machine tool. The prototype of desktop multiprocess machinery is developed in this study. This is tabletop size machine tool that has five changeable machining heads. Outline of main body and machining head are presented.In order to know the basic accuracy of desktop multiprocess machinery, experimental evaluation is carried out. Machining head setting error, stiffness of multiprocess machinery and straightness of X, Y, Z stage is measured. To study the basic performance of desktop multiprocess machinery, a complex machining experiment is carried out with the developed machine tool. The complex machining consists of three steps: electrode machining by milling, hole shaping by EDM, and hole finishing by ECM. These steps are performed in sequence on the same machine tool. The complex machining is successfully carried out. In order to evaluate the desktop multiprocess machinery from environmental point of view, machining energy, volume of machining liquid, and installation space of desktop multiprocess machinery are measured. The measured values are compared with estimated values with conventional machine tools. The machining energy, the volume of machining liquid, and the installation space of desktop multiprocess machinery are smaller than those of conventional machine tool.  相似文献   

2.
通过对第16届国际电加工会议论文进行综述,介绍了近几年来国际特种加工领域的最新研究进展.主要概括了电火花加工、电化学加工、电化学放电加工及激光加工等研究成果.  相似文献   

3.
针对电火花电解复合加工的电极损耗问题,以模具钢为加工对象开展了电火花电解复合加工实验。分析了在不同极性和电极材料条件下,工作液浓度对电极相对损耗、电极形状变化规律及加工精度的影响。结果表明:合理控制工作液浓度能降低电极相对损耗及减小电极形状变化。  相似文献   

4.
Modelling of ECM and EDM processes   总被引:3,自引:0,他引:3  
S. Hinduja  M. Kunieda 《CIRP Annals》2013,62(2):775-797
The modelling of ECM and EDM processes requires not one but several models to simulate the different phenomena that occur during machining. This paper reviews the models that have been developed to simulate each of these phenomena, e.g. potential models to calculate the current density distribution in ECM, thermal models for the plasma arc in EDM, moving boundary models to simulate the anodic dissolution in ECM and probabilistic models to determine the discharge location in EDM. In addition to discussing the relative merits of the techniques deployed in these models, the paper describes some salient applications and concludes with desirable future enhancements to these models.  相似文献   

5.
孙永兴  曲馨  王引真  冯涛  焦震 《机床与液压》2019,47(11):124-128
采用电火花电解(EDM/ECM)复合加工方法进行割缝加工时,加工效率和割缝宽度作为评价复合加工割缝的两个重要指标,但在实际加工过程中往往难以同时达到要求。使用自行研制的水包油工作液,利用单因素法探究电火花电解复合加工时工艺参数(电流、脉冲宽度、脉冲间隙、电极盘转速)对复合加工效果的影响规律,并通过正交实验分析不同工艺参数对电火花电解复合加工的影响程度,确定最佳工艺参数组合。最终通过正交试验,综合考虑加工效率及缝宽这两个评价指标选择缝宽最优1(A1B1C3D1),即确定工艺参数组合电流40A,脉冲间隙10μs,电极盘转速400r/min,脉冲宽度44μs为水包油工作液复合加工的最优参数。  相似文献   

6.
杨雄  冉小丰  帅玉妹  陈松 《硬质合金》2009,26(4):236-239
研究了GT35电火花加工时,峰值电流、脉冲宽度、放电时间等参数对工件加工效率、加工面粗糙度和电极耗损速度等的影响规律,并分析了其作用机理,优化了GT35钢结硬质合金电火花加工工艺参数,为加工复杂型腔GT35钢结硬质合金模具提供了试验依据。  相似文献   

7.
微细轴的电加工技术   总被引:1,自引:0,他引:1  
针对微细轴的加工问题,分析了当前普遍使用的特种加工方法。分别对线电极磨削、块电极反拷、单脉冲放电、电火花沉积、电解加工和电化学沉积等加工方法在微细轴加工方面的特点进行了归纳,并给出了具有代表性的加工实例。  相似文献   

8.
振动信号是反映精密球体研磨状态的重要途径。利用加速度计传感器、数据采集卡和LabVIEW,设计一套基于虚拟仪器的振动信号检测设备,对精密球在研磨加工过程中的振动信号进行测试,从时域、频域等多个角度进行分析。结果表明:利用精密球体研磨加工的振动信号能有效地监控整个研磨过程,实时反映球体研磨的状态和精度。  相似文献   

9.
钛合金深小孔精微电火花加工工艺研究   总被引:1,自引:0,他引:1  
对钛合金深小孔的电火花加工工艺进行了深入的研究。优选了电火花加工放电参数;应用了超声复合和削边电极等工艺手段。通过研究,极大地提高了加工速度和加工质量。  相似文献   

10.
详细介绍了电火花加工技术的有关因素,并列举了应用实例。通过对调整不同加工参数所得的结果进行了总结。  相似文献   

11.
State of the art electrical discharge machining (EDM)   总被引:2,自引:0,他引:2  
Electrical discharge machining (EDM) is a well-established machining option for manufacturing geometrically complex or hard material parts that are extremely difficult-to-machine by conventional machining processes. The non-contact machining technique has been continuously evolving from a mere tool and die making process to a micro-scale application machining alternative attracting a significant amount of research interests.In recent years, EDM researchers have explored a number of ways to improve the sparking efficiency including some unique experimental concepts that depart from the EDM traditional sparking phenomenon. Despite a range of different approaches, this new research shares the same objectives of achieving more efficient metal removal coupled with a reduction in tool wear and improved surface quality.This paper reviews the research work carried out from the inception to the development of die-sinking EDM within the past decade. It reports on the EDM research relating to improving performance measures, optimising the process variables, monitoring and control the sparking process, simplifying the electrode design and manufacture. A range of EDM applications are highlighted together with the development of hybrid machining processes. The final part of the paper discusses these developments and outlines the trends for future EDM research.  相似文献   

12.
黄道业 《模具制造》2007,7(8):74-75
介绍了电火花成型机床加工冲模中子程序的构成与调用等内容,通过使用子程序编制加工程序,可使加工程序简短灵活,对现实加工具有一定的指导意义.  相似文献   

13.
回转式电火花展成加工及其成形运动分析   总被引:2,自引:1,他引:2  
本文介绍了回转式电火花展成加工的原理及特点,并对该加工方法的成形运动分析进行了较深入地探讨,给出了计算机仿真的结果。  相似文献   

14.
脉冲电源是微细电加工的一个重要研究方向,其性能指标直接影响加工精度和表面质量,从微细电火花加工和微细电解加工用的脉冲电源两方面出发,介绍其主要研究方向及国内外发展现状,并详细分析了其工作原理.  相似文献   

15.
Brief design and manufacture considerations are detailed for a hybrid electrochemical grinding unit adapted from a vertical machining centre using a 40,000 rpm spindle and 500 A DC generator. Subsequently, experimental work is presented on the influence of tool bond systems, superabrasive grit type and electrical parameters when simultaneous ECM/grinding Udimet 720 using 10-15 mm diameter plain points. Single layer electroplated CBN tools produced G-ratios and maximum normal cutting forces of ∼451 and ∼45 N, respectively, compared to ∼128 and 557 N for equivalent diamond wheels. Data on workpiece roughness and overcut are also presented as are initial results for a fir tree shaped tool.  相似文献   

16.
伍端阳 《模具制造》2007,7(9):64-67
列举了模具企业中电火花加工存在的常见误区,针对这些误区进行了技术探讨,对模具企业电火花加工具有指导意义.  相似文献   

17.
彭婧 《模具制造》2009,9(11):66-67
介绍了一种非导电材料电加工机床,采用熔融金属的高速粒子流喷在基体表面产生导电覆层,利用移动式导电橡胶接入阳极到待加工件,非导电材料在喷涂覆层后,电流瞬间击穿覆层,在微小环境内产生高温高压和气蚀,将材料剥离工件表面。操作简单实用,可在普通电火花加工机床的基础上改造而成,对非导电材料加工方便实用。  相似文献   

18.
张晓燕 《模具工业》2006,32(11):63-66
在电火花加工中要降低各种干扰因素的影响,确保加工质量和稳定的加工过程,放电间隙的一致性是非常重要的一个技术指标。详细分析了影响放电间隙状态变化的因素,提出了维持放电间隙大小一致性的相应措施,对进一步改善电火花加工质量具有一定的参考价值。  相似文献   

19.
轮胎模具电火花加工的研究   总被引:2,自引:2,他引:0  
对电火花加工方法在轮胎模具制造过程中的应用进行了探讨,并对应用过程中需注意的技术问题和设备的结构配置、功能、精度进行了研究和阐述。  相似文献   

20.
带冠整体叶轮的应用及其加工工艺的研究   总被引:4,自引:1,他引:4  
介绍了目前带冠整体叶轮国内外的研制情况,并在分析涡轮叶盘现有加工工艺的基础上,提出了一种加工带冠整体叶轮的创新工艺——带电解预通道的电火花成形工艺,并讨论了该工艺的技术难点和相应的解决方案。  相似文献   

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