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Abstract: Micro
electro discharge milling (ED-milling) with simple electrode is found
wide application in micro 3D structure machining due to the characters
of adaptation and handleability. However, there will be some vestige
remains on the machined surface during ED-milling no matter how to
reduce the discharge power, especially in the complicated surface can
not be expressed with normal equations. To solve the problems of vestige
remains, the lamination’s strategies of micro ED-milling, the way of the
track’s generation and the arithmetic of smoothness are studied
systemically. At the same time, with the way of isoparametric
interpolation, the machined curved surfaces of lamination are well
corrected. By using the technology of ED-milling CAD/CAM developed by
authors, some sub-millimeter level micro 3D complicated parts including
spherical surface, cylinder and NURBS surface are machined.
Key words: Micro ED-Milling CAD/CAM Smoothness
CLC No: TH166
TP391
国家自然科学基金资助项目(59935110).
Received 20021210, received in revised form 20030402
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