共查询到20条相似文献,搜索用时 46 毫秒
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用实验的方法研究电火花微细加工中放电能量在极间的分配和对电极损耗的影响,并研究式具电极材料和工件材料对电极损耗的影响,实验表明,从减小电极损耗,增加有用功率出发,电火花微细加工应使用微能窄脉冲电源。 相似文献
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微细电火花加工及其关键技术 总被引:3,自引:0,他引:3
综述了微细电火花加工的基本原理及最新研究进展。比较了LIGA技术与微细电火花加工的特点与应用。简要分析了微细电火花加工的关键技术:微细电极的在线制作、微进给装置、微小能量的脉冲电源、微小电极的运动轨迹规划、电极的损耗及补偿策略。展望了微细电火花加工在微三维结构加工中的应用前景。 相似文献
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根据电火花微细加工的技术特点,设计研制适应电火花微细加工要求的伺服控制系统,微能脉冲电源和微细电极制造机构,整个系统工作稳定,能够较好地达到微细加工的要求。 相似文献
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针对微电极制作的效率问题,提出了一种快速在线微电极加工成形的方法,设计了一种新型卧式微电火花机床。该机床由金刚石砂轮超精密在线电极磨削、线电极电火花在线电极磨削共同完成微米级电极的高效精密制作,该机床组成部分还包括基于CCD的在线光学尺寸检测与测量系统、精密运动与进给系统、纳秒级独立式脉冲放电电源与放电状态检测反馈系统组成。在该机床上进行了微电极制作、微小孔加工以及微电火花铣削等实验,加工出直径为15μm微细轴和直径为50μm微小孔。 相似文献
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根据电火花微细加工的技术特点,设计研制适应电火花微细加工要求的伺服控制系统,微能脉冲电源和微细电极制造机构,整个系统工作稳定,能够较好地达到微细加工的要求. 相似文献
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Zhan Jie Zhang JinCollege of Materials Engineering Chongqing Institute of Technology Chongqing ChinaChen Bingkui Chen XiaoanState Key Laboratory ofMechanical Transmission Chongqing University Chongqing China 《机械工程学报(英文版)》2004,17(4)
The technology of forming and machining lump nano-materials has been investigated. Grinding, abrasive machining test has been conducted to Fe, Co, Ni and Al lump nano-materials. Experiments have been done to measure grinding force, grinding thermal, machining roughness and micro-hardness. Image analysis is carried out by metallographic and scanning tunnel microscopic microscope. Researches provide the basis data for forming and machining lump nano-materials. 相似文献
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Among the processes of micropart manufacturing, special attention is paid to applying electrochemical (ECMM) and electrodischarge (EDMM) micromachining. These processes have especially been predicted for 3D-sculptured surface (i.e. tools for microforming processes) manufacturing. In the first part of the paper a review and comparison of ECMM and EDMM are presented with special focus on accuracy and productivity. Additionally the solutions of the integration of the electrochemical and electrodischarge machining are reviewed. The analysis was the background for the concept of combining ECMM and EDMM (EC/EDMM) into a sequential process carried out on the same machine tool. Such a combination gives the possibility of minimizing the disadvantages and emphasizing the advantages of the ECMM and EDMM processes. All of these considerations were carried out based on the literature review. In the second part of the paper, overviews of the special EC/EDMM machine design, CAD/CAM support and examples of applying the EC/EDMM sequence are presented. 相似文献
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超精密加工技术研究现状及发展趋势 总被引:1,自引:0,他引:1
超精密加工是多种技术综合的一种加工技术,是获得高形状精度、表面精度和表面完整性的必要手段。根据当前国内外超精密加工技术的发展状况,对超精密切削、磨削、研磨以及超精密特种加工及复合加工技术进行综述,简单地对超精密加工的发展趋势进行预测。 相似文献