电参数对小间隙电解加工影响规律研究

发布时间：2018-04-10 06:19

本文选题：小间隙　切入点：电解加工　出处：《浙江理工大学》2014年硕士论文

【摘要】：电解加工（Electrochemical Machining，ECM），根据电化学阳极溶解的加工原理，是一种以“离子”溶解方式去除材料的加工技术，具有可加工范围广、加工表面质量好、加工效率高、工具不会损耗等优点。发展小间隙电解加工技术，是为了加强电解加工的定域性，提高零件的加工精度，使其可以从一般加工水平发展成为精密加工水平。本文在电解加工技术的基础上结合了现代数控技术，通过理论研究和工艺实验，对医疗上的一套麻醉穿刺针进行了开槽实验。本文研究完成的工作主要包括以下几个方面：首先，在电解加工技术基本原理的基础上，对小间隙电解加工的理论基础、加工模型进行分析，研究得出了影响小间隙电解加工性能的因素和加工工艺调节的方法，，为实验研究提供了依据和理论指导。其次，为了提高加工精度和加工表面质量，改进和完善了现有的电解加工实验装置。改进了电解液过滤系统，提高了电解液的纯净度，解决了电解液的过滤问题；将工具电极前后偏移一定的尺寸进行走刀加工，为电解加工提供了新的运动加工方式；将脉冲电源应用于电解加工中，为电解加工提供了新的研究方向。再者，开展了小间隙电解加工开槽工艺实验。通过大量的实验研究，分析了工艺参数对电流效率及窄槽宽度、深度的影响规律。形成了一套小间隙电解加工技术工艺参数优化及调节的方法。最后，在前期小间隙电解加工技术参数优化的基础上，对医疗上的一套麻醉穿刺针进行开槽实验。通过大量的开槽实验，并且对实验结果和方法进行不断地分析、研究和改进，最后成功的在这套麻醉穿刺针上加工出了切口光滑整齐、窄槽轮廓清晰、尺寸和表面质量都符合加工要求的窄槽结构。
[Abstract]:According to the principle of electrochemical anodic dissolution, ECM is a kind of technology for removing materials by ion dissolution. It has the advantages of wide machinability, good surface quality, high machining efficiency and no loss of tools.The purpose of developing ECM with small gap is to strengthen the localization of ECM, to improve the machining accuracy of parts, and to make it possible to develop from general machining level to precision machining level.On the basis of electrolysis machining (ECM) technology, this paper combines modern numerical control technology, through theoretical research and technological experiment, slotted a set of anesthetic puncture needle in medical treatment.The work done in this paper mainly includes the following aspects:Firstly, on the basis of the basic principle of ECM, the theoretical basis and machining model of ECM with small gap are analyzed, and the factors affecting the performance of ECM with small gap and the adjustment method of machining process are obtained.It provides the basis and theoretical guidance for the experimental research.Secondly, in order to improve machining accuracy and surface quality, the existing ECM experimental equipment is improved and improved.The filtration system of electrolyte is improved, the purity of electrolyte is improved, and the filtration problem of electrolyte is solved.The application of pulse power supply in ECM provides a new research direction for ECM.Furthermore, the experiment of small gap ECM slotting is carried out.The influence of process parameters on current efficiency, width and depth of narrow slot is analyzed through a lot of experiments.A set of methods for optimizing and adjusting the technological parameters of ECM with small gap are formed.Finally, on the basis of optimizing the technical parameters of small gap ECM, a set of anesthetic puncture needle was slotted.Through a large number of slotted experiments and continuous analysis, research and improvement of the experimental results and methods, a smooth and neat cut and clear narrow groove profile were successfully processed on this set of anesthetic puncture needles.Narrow groove structure with size and surface quality in line with machining requirements.
【学位授予单位】：浙江理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TG662

【参考文献】