Journal
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
Volume 78, Issue -, Pages 134-145Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.precisioneng.2022.07.010
Keywords
Current distribution; Jet electrochemical machining; Numerical simulation; Surface quality
Categories
Funding
- National Natural Science Foundation of China [91860208]
- National Natural Science Foundation of China for Creative Research Groups [51921003]
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Enhancing the current density at the trail edge of a workpiece through a tool with insulated frontal nozzle tip can improve the surface quality during machining process. Experimental results demonstrated that a mirror-like surface could be achieved under favorable conditions.
In electrochemical jet milling (EJM), enhancing the current density at the trail edge of a workpiece can improve the surface quality. In this study, a novel rectangular cathode tool structure insulated at one side was designed to reinforce the current density at the trail edge of a workpiece to improve the machined surface quality. Numerical simulation was performed to analyse the current density distribution with respect to various parameters, and experiments were conducted to verify the simulation results. The simulation results showed that the current density could be strengthened by utilising the tool with an insulated frontal nozzle tip, which can improve the surface quality during the machining process. Meanwhile, the experimental results revealed that a mirror-like surface could be obtained when utilising the tool under favourable conditions. Compared to other tools, the surface machined by the tool with an insulated frontal nozzle tip had minimum roughness, defects, and overcut.
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