薄型中空电极振动电解切割TB6钛合金

发布时间：2018-05-30 03:15

本文选题：薄型中空电极 + 电解切割　；参考：《航空学报》2017年08期

【摘要】：TB6钛合金由于具有优越的性能,广泛地用于航空航天领域。然而从大余量的TB6钛合金锻铸件毛坯加工成复杂结构的零件,其加工效率低,刀具和机床成本高,造成了极大的浪费。为解决这一问题,提出了一种利用薄型中空电极进行快速大余量去除的电解加工(ECM)方法,即将零件与多余材料切割分离,有望较大程度提高加工效率,降低加工成本。为改善电解加工流场特性,提高加工精度,对电极施加振动,并对薄型中空电极的振动切割进行了建模分析和试验研究。试验结果表明,合适的振动幅值和频率(A=0.05mm,f=50Hz)可以使得各处电解液电导率趋于一致,从而提高加工的精度、稳定性和效率。复杂结构件的成功切割证明了薄型中空电极振动电解切割加工技术具有一定的适用性。
[Abstract]:TB6 titanium alloy is widely used in aerospace field because of its superior properties. However, the machining efficiency is low and the cost of cutting tools and machine tools is high from the large allowance of TB6 titanium alloy forging blank to complex structure parts, which results in great waste. In order to solve this problem, an ECM method using thin hollow electrode to remove ECM with large margin is proposed. The separation of spare parts from spare materials is expected to improve machining efficiency and reduce machining cost to a large extent. In order to improve the flow field characteristics and machining accuracy of ECM, vibration was applied to the electrode, and the vibration cutting of thin hollow electrode was modeled, analyzed and tested. The experimental results show that the suitable amplitude and frequency of vibration can make the conductivity of electrolytes uniform and improve the accuracy, stability and efficiency of machining. The successful cutting of complex structure has proved that the thin hollow electrode vibration electrolysis cutting technology has certain applicability.
【作者单位】：北京航空航天大学机械工程及自动化学院;南京航空航天大学机电学院;沈阳航空航天大学机电工程学院;
【基金】：国家科技重大专项(2015ZX04001201) 中航工业产学研专项(cxy2013BH04)~~
【分类号】：TG48;TG662

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