文档介绍：本科毕业设计(论文)
题目:高温合金零件电解加工工装设计
系别: 机电信息系
专业: 机械设计制造及其自动化
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2013年05月
高温合金零件电解加工工装设计
摘要
电解加工又称电化学加工,是金属工件在电解液中发生阳极溶解的一种加工过程。电解加工对难加工材料可以以柔克刚,对形状复杂的零件可以一次成型,并以表面质量好、生产率高、无工具损耗、无切削应力等优点,在制造业中发挥着重要作用。论文通过对高温合金零件进行分析,设计出一套电解加工工装。电解加工工装包括阴极的设计计算、流场的设计计算以及零件的定位等。阴极的设计采用等间隙分布的原则,在零件原有尺寸上缩小一定的间隙,来设计阴极。根据不同的加工方式可以有不同的加工间隙,。对于流场的设计,根据零件的特点采用侧流式加工,在流场设计时还要确定电解液流速和进口压力。另外,流场的设计要均匀,均匀性是指加工面上各处流量充足、均匀,不发生流线相交和其他流场缺陷——如空穴现象、分离现象等。另外,工装的设计要保证良好的密封性。通过设计电解加工工装加工高温合金零件比机械切削加工省时省力,与机械切削加工相比电解加工的表面质量好,且加工范围广,没有切削应力。
关键词:电解加工;阴极设计;流场;工装
全套图纸,加153893706
High temperature alloy parts electrochemical machining tooling design
Abstract
Electrochemical machining is also called electrochemical machining, metal wor-
kpiece in the electrolyte is an anodic dissolution process. Electrochemical machining of difficult-to-machine materials can, with parts plex shape can be a forming, and with good surface quality, high productivity, tool wear, cutting stress, plays an important role in manufacturing. Paper through the analysis of high temperature alloy parts, design a set of electrochemical machining tools. Electrochemical machining fixtures including the design of the cathode flow field calculation, design calculation and the positioning parts. Cathode design based on the principle of distribution of intermittent, reduced a certain gap on the parts in the original size, to design the cat-
hode. According to the different processing methods can have different process- sing clearance, here take machining gap is mm. To the design of the flow field, accor- ding to the characteristics of the parts with side flow processing, even when in the flow field design to determine the electrolyte flow rate and inlet pressure. In addition, the design of the flow field to uniform and adequate flow throughout uniformity refers to processing surface, uniform, not line intersect and other defects, such as cavitation flow field and separation phenomenon, etc. In addition