《电化学光整加工过程中电流场分布特性的研究(最终学位论文)文章教学案例》由会员分享，可在线阅读，更多相关《电化学光整加工过程中电流场分布特性的研究(最终学位论文)文章教学案例（73页珍藏版）》请在金锄头文库上搜索。
1、新疆大学硕士毕业论文新 疆 大 学 论文题目(中文)： 电化学光整加工过程中电流场分布特性的研究论文题目(外文)：Study on Properties of Current Distribution along Micro-profile in Processing of Electrochemical Finishing研 究 生 姓 名： 阿米娜卡德尔学 科 、 专 业： 机械制造及其自动化研 究 方 向： 制造业信息化工程导师 姓名 职称： 何连英 副教授 阿达依谢尔亚孜旦 副教授 论文答辩日期 2011年 5 月 29 日学位授予日期 年 月 日本论文中的部分内容得到国家自然科学基金
2、（项目编号：50965017）以及新疆大学博士启动基金（项目编号：BS08134）资助，在此表示感谢。1新疆大学硕士研究生学位论文摘 要由于电化学光整加工方法具有不受零件表面硬度影响及可使零件加工表面获得良好的微观几何轮廓等优势，因而得到迅速发展，大幅度提高了加工表面质量，在机械零件的加工中得到应用。研究可知电化学光整加工不仅可以大幅度改善零件表面加工质量，而且还可以不同程度地提高零件的加工精度。研究结果表明，电化学光整加工的整平过程是工件阳极表面微观几何轮廓从尖峰状变成圆弧状的圆角化过程，工件阳极表面微观几何形貌的圆角化不仅影响提高整平效果，而且也影响加工精度。电化学光整加工的整平机理是影响
3、表面质量及加工精度的重要因素，影响整平效果的因素很多，如，电解液质量分数、电流密度等，但其中其它条件确定的情况下阳极微观几何轮廓的变化对整平效果的影响最明显，相关实验结果的分析也表明，在电化学光整加工的初期，整平效果提高较为显著，但随着光整加工的进行，整平效果的提高并不十分明显；同时，所获得的表面微观几何轮廓由尖峰形变为呈圆角形。显然，在小间隙条件下，表面微观几何轮廓的变化影响了极间电流场的分布。说明电流场的分布影响着整平效果和表面质量，因此为了为改善电化学光整加工整平效果有必要研究电化学光整加工过程中电流场分布特性的。根据电化学光整加工前后的表面微观轮廓的变化，本文在此提出圆锥体和半球体两种
4、表面微观几何形貌。从微观几何的角度研究了电化学光整加工整平过程中工件阳极表面微观几何轮廓的变化及其影响。在所提出的圆锥体和半球体表面微观几何形貌的基础上，根据相关的知识建立了极间电流场的数学模型并分析了电化学光整加工过程中电流场分布特性的变化。研究结果表明，尖峰状表面微观几何轮廓有利于强化电化学的选择性溶解，有利于提高整平效果，圆弧张表面微观几何轮廓弱化电化学阳极选择性溶解，不利于提高整平效率。结果验证了电化学机械光整加工过程中，机械作用不仅具有刮膜的作用，而且还具有使表面微观几何轮廓尖峰化的作用。关 键 词：电流场；特性；电化学；光整 AbstractElectrochemical fini
5、shing technology with the good surface quality make its process method has been increasingly widely application , and has become one of the processing technology manufacturing , a lot of research results indicate that using electrochemical finishing technology not only improves parts surface machini
6、ng accuracy , but also can effectively increase the use of parts performance. Electrochemical finishing method get the rapid development , greatly improved the machined surface quality in machinery parts processing , get the application in machinery parts processing because it do not suffer influenc
7、e of parts surface hardness , and can make parts processing surface obtain good micro geometric profile. Study shows electrochemical finishing not only can significantly improve the machined surface machining parts, and still can improve the quality of parts processing precision in different degree.
8、The results of the study shows that , electrochemical finishing the whole process is a process of workpiece anticathode surface micro geometric profile from peak shape into arc shape of the fillet process , workpiece surface morphology of anode geometry of microscopic affect not only improve round ,
9、 but also leveling effect affect machining accuracy. The processing of electrochemical light mechanism is leveling influence surface quality and machining precision of the important factors that affect leveling effect by many factors , Such as , electrolyte quality score, current density , etc , but
10、 the other conditions uncertain anode micro geometric profile change on leveling effect the most obvious. Related the analysis of experimental results also indicated that the beginning of the whole processing in electrochemical light, leveling effect increased significantly , but as the light is on
11、, the processing of leveling effect improve is not obviously ; meanwhile , the surface obtained by microscopic geometric profile for a round shape peak deformation obviously, in the small gap conditions , the geometric profile on micro change affects current distribution explain the current distribu
12、tion affecting leveling effect and surface quality , Therefore , in order to improve the processing leveling electrochemical light effect is necessary to study the whole process of electrochemical finishing of current field distribution characteristics. According to the change of whole processing an
13、d electrochemical light microscopic surface outline.This paper Puts forward The cone and half a sphere Two kinds of surface micro geometric morphology, studied from the perspective of microscopic geometry electrochemical finishing the whole processing leveling process workpiece anticathode surface a
14、nd the variation of microscopic geometric profile influence. Based on surface microstructure geometric shape of the cone proposed and half sphere according to relevant electrodynamics knowledge current field established the mathematical model, and analyzes the whole process of electrochemical light
15、changes in the current field distribution characteristics. The results of the study show that, peak shape to strengthen microscopic geometry contour surface electrochemical dissolution, be helpful for improving leveling effect, arc shape surface micro geometric profile weakening electrochemical anode dissolution, is not conducive to improving leveling efficiency using relevant numerical simulation software simulation peak shape and arc shape two surface micro geometric profile charge distribution and charge density distribution curve, verify the above process electrochemical mechanical l
