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Affiliation of Author(s):Shandong University, Weihai

Journal:The International Journal of Advanced Manufacturing Technology

Key Words:Micro electrochemical drilling . Rotating ultrasonic-assisted . Machining localization . High efficiency . Micro-holes array

Abstract:Metal micro-holes structures have been widely used in aerospace and biomedical fields, such as aero engine, medical vaporizer, and so on. In this paper, a micro rotating ultrasonic-assisted electrochemical drilling (UA-ECD) method was proposed to improve the machining localization, efficiency, and stability. Firstly, a numerical simulation of the flow field in the machining gap is carried out, the simulation results show that the rotating electrode with ultrasonic vibration can renew the electrolyte in the machining gap and homogenize the flow field. Secondly, a mathematical model is established to study the effect of ultrasonic vibration and key machining parameters on machining results, which illustrate that the rotating ultrasonic-assisted electrochemical drilling method can improve the machining quality, machining efficiency, and stability sufficiently. Finally, after optimization of several groups of contrast experiments, a micro holes array with good quality is fabricated successfully on a 510-μm-thick 304 stainless steel workpiece. It is proved that the proposed rotating ultrasonic-assisted micro electrochemical drilling method has considerable potential and broad application prospects.

All the Authors:Ling Siying, Wang Kan, Jiang Yong

First Author:Li Minghao

Indexed by:Research Paper

Correspondence Author:Liu Yong

Document Code:10.1007/s00170-020-05097-0

Document Type:Journal article

Volume:107

Page Number:815-826

ISSN No.:0268-3768

Translation or Not:no

Date of Publication:4387-12-01