Optimal design of the sheet cathode using W-shaped electrolyte flow mode in ECM

Optimal design of the sheet cathode using W-shaped electrolyte flow mode in ECM
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ECM中W型电解液流动模式片状正极的优化设计

DOI:
10.1007/s00170-011-3781-9
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发表时间:
2012-09
影响因子:
3.4
通讯作者:
徐正扬
徐正扬
中科院分区:
工程技术3区
文献类型:
--
作者:
朱栋;朱荻;徐正扬

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电化学加工(ECM)是一种重要的非传统加工技术,用于加工复杂、薄结构的工件。在本研究中,采用电解加工技术加工光盘。由于两个叶片之间的通道很窄,阴极必须采用薄板结构。在电解加工过程中,阴极将承受电解液压力,从而导致变形。阴极变形对加工质量和工艺稳定性有不利影响。为了使变形最小化,对阴极厚度进行了优化处理,并采用了新的电解质流动模式w型流动模式来减弱压力。计算机模拟结果表明,采用上述两种措施后,阴极变形分别减少了17.6%和28%。结果表明,本文提出的新型薄板阴极在电解加工中是有用的,新的流动方式是有效的。在此基础上,采用最优电极厚度和w型流方式对加工效果进行了验证。然后进行了相应的实验,结果表明,优化处理对减少阴极变形有显著的效果。
Electrochemical machining (ECM) is an important non-conventional manufacture technology for machining workpieces with complex and thin structures. In this study, ECM is used to machine the blisk. Because the channel between two blades is narrow, the cathode must use the thin-sheet structure. In the ECM process, the cathode will bear electrolyte pressure which can cause deformation. The cathode deformation has negative influence on the machining quality and process stability. To minimize the deformation, the optimization treatment of the cathode thickness is carried out and a new electrolyte flow mode, W-shaped flow mode, is adopted to weaken the pressure. The corresponding computer simulation is applied, and the results show that the cathode deformation decreases by 17.6% and 28% by taking the above-mentioned two measures. It indicates that the new thin-sheet cathode presented in this paper is useful and the new flow mode is effective in ECM. Furthermore, the experiments are conducted using the optimal thickness electrode and W-shaped flow mode to verify the machining effects. Then the corresponding experiment is carried out, and the result shows that the optimal treatments to reduce the cathode deformation have remarkable effects.
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影响因子: 3.4
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