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CSME 2019/08
Volume 40 No.4
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355-363
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Simulation and Prediction of Small Holes Machined by RCUECM
Ze-Xiang Liua, Shu-Sheng Lia and Bin Zhanga
aTaizhou Polytechnic College, TaiZhou, 225300, Jiangsu Province, China.
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Abstract:
One of the ways to improve technological factors in electrochemical machining is by introduction of the ultrasonic vibration of cathode. In order to study the forming law and the course of hole machined by the rotary combined ultrasonic and electrochemical machining (RCUECM), the small holes were processed by the RCUECM with hollow cathode with different machining time, then three-dimensional simulation machining are carried out based on ANSYS CFX using the hollow cathode. Simulation outcomes and experimental outcomes were carried out using the same machining time, the entrance diameter; bottom diameter and machining depth were measured and analyzed afterwards. The comparison results show that as the vibration of the cathode is applied in the simulation, the flow field is similar to the actual one in experiments, when the voltage was applied in the simulation, the couple filed of electric and flow was formed, so based on what was mentioned above, the simulation machining is suitable for describing the course of holes machined by RCUECM in actual. The three-dimensional profiles of holes were obtained by the three-dimensional simulation and were similar to these holes in experiments. Therefore the simulation can be used to predict the profile of parts machined by RCUECM, and it is a reliable method to describe the machining course in RCUECM for the three-dimensional simulation machining, which is helpful for the studying the forming law of the RCUECM.
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Keywords: Rotary combined electrochemical machining (RCUECM); small holes; forming law; simulation machining;
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*Corresponding author; e-mail: lzx_527.student@sina.com
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©
2019
CSME , ISSN 0257-9731
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