Study of the electrolyte flow at narrow openings during electrochemical machining

被引：20
|
作者：
Klink, A. [1 ]
Heidemanns, L. [1 ]
Rommes, B. [1 ]
机构：
[1] Rhein Westfal TH Aachen, Lab Machine Tools & Prod Engn WZL, Campus Blvd 30, D-52074 Aachen, Germany
来源：
CIRP ANNALS-MANUFACTURING TECHNOLOGY | 2020年 / 69卷 / 01期
关键词：
Electro chemical machining (ECM); Simulation; Cavitation; CAVITATION; ECM;
D O I：
10.1016/j.cirp.2020.04.075
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Modelling of ECM is a powerful tool to improve the cost- and time intensive tool-development process. However, for certain combinations of process and geometric parameters, the simulation results include non-physical negative pressure values inside the electrolyte flow. These phenomena occur near the narrow opening into the machining gap. According to Bernoulli's law, it is plausible that low-pressure values are present in this region possibly leading to evaporation. Based on these facts, it was hypothesized that cavitation could occur during ECM. In order to successfully validate this hypothesis, the electrolyte flow is analysed both in experimental as well as simulation-based studies. (C) 2020 CIRP. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：157 / 160
页数：4
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