Authors: Yonghua Lu Dongbiao Zhao Kai Liu
Publish Date: 2012/08/23
Volume: 26, Issue: 8, Pages: 2389-2396
Abstract
In order to resolve the problem of single machining object existing in traditional electrochemical machining ECM with unitary cathode a grid cathode composed of circular cells is used to produce the workpieces with different shapes Three types of circular cells Φ15 mm Φ20 mm and Φ25 mm are utilized to construct the plane slant and blade cathode The material of the cathode and the anode is CrNi18Ti9 and the ingredient of electrolyte is 15 NaCl and 15 NaNO3 The machining balance current and the balance time are acquired and analyzed the machining process and the workpiece quality are compared between using the grid cathode and the unitary cathode Moreover the machining errors and the error reasons of workpiece surface are analyzed Research shows that the grid cathode can be used to manufacture workpieces with a complex shape and the workpiece quality is better if the circular cell is smaller If the circular cell is small enough the workpiece quality is almost equal to it machined by the unitary cathodeYonghua Lu received his MS and PhD from Nanjing University of Aeronautics and Astronautics NUAA China He is currently an Associate Professor at the College of Mechanical and Electrical Engineering at NUAA in Nanjing China Dr Lu’s research interests include measurement system ECM and sensorDongbiao Zhao received his MS and PhD from Nanjing University of Aeronautics and Astronautics NUAA China He is currently a Professor at the College of Mechanical and Electrical Engineering at NUAA in Nanjing China Dr Zhao’s research interests include CNC system robotics and control systemKai Liu received his MS and PhD from Nanjing University of Aeronautics and Astronautics NUAA China He is currently an Associate Professor at the College of Mechanical and Electrical Engineering at NUAA in Nanjing China Dr Liu’s research interests include CNC system and robotics
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