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The tiny 3D components, such as optical fiber connector, micro-die and punch, non-spherical optical lens and tiny gears, are broadly used in the industries with significant add-on value. The micro-EDM technique is appropriate for producing those tiny parts. Thus, various machining properties of micro-EDM technique are researched inthis paper. In micro-EMD, the electrode wear may result in significant loss of machining accuracy. With CAD/CAM technique, this problem is compensated by designing contouring path with different directions in this research. From the experiments in the laboratory, it is shown there exists certain improvement in dimension accuracy, geometry accuracy as well as surface roughness.
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