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随着航天航空事业的发展,及国民经济对汽车、拖拉机、涡轮机等日益增长的需要,难加工的材料及复杂形状的工件日益增多,由于电解加工在解决这类问题时具有一定的优越性,因而获得较为广泛的使用。但因电解加工是一门新工艺,有不少极待解决的问题,其中之一就是“非加工表面的保护”。现根据我们的经验对叶片非加工型面的保护问题介绍如下: 一、非加工表面腐蚀的原因电解加工是在高电流密度下进行阳极溶解而进行加工的(一般i=20～100安/厘米~2),
With the development of aerospace and aviation, and the ever-increasing need of the national economy for vehicles, tractors and turbines, the number of difficult-to-process materials and workpieces with complex shapes is increasing. Since electrolytic machining has some advantages in solving such problems, Thus obtained a more extensive use. However, due to electrolytic processing is a new technology, there are many problems to be solved, one of which is “non-processing surface protection.” Now based on our experience on the protection of non-blade surface profile is as follows: First, the reasons for corrosion of non-processing surface Electrolytic processing is carried out at high current density anodic dissolution for processing (generally i = 20 ~ 100 A / cm ~ 2),