共查询到20条相似文献,搜索用时 125 毫秒
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探讨了数字化制造技术在电解加工中应用的可能性,指出电解加工数字化制造技术将是电解加工发展的方向,会产生显著的技术经济效益,对数字化制造技术在未来电解加工中的应用方向提出了看法。 相似文献
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基于展成式球面成形原理及电解研磨复合加工方法,开发出一种电解研磨复合加工新方法-电解研磨复合球面加工。阐述了该方法的特点及加工参数的选择原则。加工不锈钢球面时,可获得Rz0.07μm的粗糙度。 相似文献
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阐述了手工电解加工方法的特点和应用情况,结合典型电解液手工电解加工的实验结果,分析了可能的加工机理。 相似文献
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脉冲电流电解加工技术在锻模生产中的应用 总被引:1,自引:0,他引:1
通过对脉冲电流电解加工特点分析以及应用实例,说明脉冲电流电解加工技术用于锻模型腔加工,可以进一步提高锻模制造水平,满足精密锻模加工要求。 相似文献
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Electrochemical drilling with vacuum extraction of electrolyte 总被引:1,自引:0,他引:1
W. Wang D. Zhu N.S. Qu S.F. Huang X.L. Fang 《Journal of Materials Processing Technology》2010,210(2):238-244
Forward flow pattern of electrolyte is widely used in electrochemical drilling (ECD) process. But electrolyte in the machining gap presents a sharp divergent flow which causes an abnormal dissolution and even harmful sparking. Reverse flow of electrolyte leads to a stable machining process but is rarely used due to the poor application feasibility. In this paper, an electrochemical drilling method with vacuum extraction of electrolyte has been proposed. Vacuum extraction of electrolyte greatly facilitates the application of reverse flow in electrochemical drilling. Flow distributions along the machining gap with different electrolyte flow pattern are compared numerically and experimentally. Reverse flow using vacuum extraction is shown to improve the process stability while diminishing sparking and formation of striations. Machining characteristics of vacuum extraction are investigated experimentally. To minimize the radial overcut of machined hole by electrochemical machining with vacuum extraction of electrolyte, the orthogonal design is used to optimize process parameters such as initial machining gap, applied voltage, tool feed rate, and electrolyte concentration. Good results have been obtained in the experiments with optimized parameters. 相似文献
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针对某型航空发动机燃油喷嘴结构尺寸微小、材料硬度较高、切削加工困难等问题,介绍了微细电解加工的原理和实验装置,制备了微细棒状工具电极和三角形钩状成形电极,利用分层电解铣削进行粗加工快速去除工件多余材料,再利用环形扫描电解铣削进行旋流室全锥面的精加工,实现了发动机喷嘴微小尺寸旋流室的微细电解加工成形,达到加工精度和表面质量要求。研究表明,微细电解铣削加工是加工金属材料微小结构的有效可行的方法。 相似文献
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针对复杂型面金属零件的光整加工,提出磨粒高速流动电解机械复合光整加工方法:采用随电解液高速流动的微小磨粒,通过加工过程中的电化学溶解和磨粒连续微量划擦,改善工件表面质量。通过对比试验分析了复合加工、纯电解加工和纯磨粒高速流动加工等3种方法对加工效果的影响,并用单因素法加工不锈钢工件,分析不同试验因素对工件表面粗糙度的影响。结果表明:采用复合光整加工方法能有效提高光整加工效率,降低工件表面粗糙度,获得较好的加工效果;当加工电压为5 V,加工间隙为2 mm,使用粒径为75~106 μm的Al2O3磨粒加工5 min时,工件表面粗糙度可以达到0.17 μm。 相似文献
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电解加工技术以其自身的特点和优势,被应用于航空发动机机匣型面的加工。该项技术不仅适用于军机制造,对于民机制造也有广泛的应用前景。以某典型航空发动机机匣为例,对机匣电解加工技术进行了研究,其研究结果对机匣类零件的电解加工具有指导意义。 相似文献
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Film cooling holes are widely used in the aerospace industry, and their fabrication requires high machining speed and accuracy, as well as good surface quality. Tube electrode high-speed electrochemical discharge drilling (TSECDD) is a promising hybrid machining method for the fabrication of film cooling holes in difficult-to-machine superalloys. An electrochemical reaction can occur if a low-conductivity salt solution is used in the drilling. Materials can also be removed at a high speed using electrical discharge machining (EDM). Thus, TSECDD and electrochemical machining (ECM) can be combined into a unique machining process using a low-conductivity salt solution. This machining process achieves both a high machining speed and good surface finish. In this study, the material removal mechanism of TSECDD was studied using a low-conductivity salt solution, and comparisons with high-speed electrical discharge drilling were made. The performance of the process was investigated using salt solutions of various conductivities. The results show that there are different material removal mechanisms in the frontal gap and the lateral gap and that, in the latter, there is a transition from EDM to ECM. Experiments conducted using TSECDD confirm that the use of this process with a low-conductivity salt solution can improve the machining surface and machining efficiency achieved. The results also show that the use of a low-conductivity solution improves the material removal rate, the hole diameter, and the taper angle. 相似文献