Process Planning and Electrode Wear Compensation for 3D Micro EDM
This paper presents a multi-cut process planning method and a new electrode wear compensation method based on a machine vision system for micro electrical discharge machining (micro-EDM) milling. Front wear and corner wear of tool electrode can be measured and evaluated in a direct manner by the vision systems image processing software capabilities. Experiments have shown that corner wear ratio (defined as a ratio between the length of corner wear and electrode diameter) is linearly proportional to machining length for a fixed machining depth. The length of front wear increases linearly as the depth of hole or the depth of groove increases. Track overlapping is designed appropriately according to the corner wear ratio. Micro machining results not only verify the effectiveness of the proposed process planning and electrode wear compensation methods but also show the X-Y dimensional errors can be controlled within 10 μm.
3D Micro-EDM Electrode Wear Compensation Machine Vision Process Planning
Mu-Tian Yan Shr-Shiang Lin
Department of Mechatronic Engineering, Huafan University, No. 1, Huafan Rd. , Shihtin Hsiang, 223 Taipei Hsien, Taiwan
国际会议
The 16th International Symposium on Electromachining(第16届国际电加工会议)
上海
英文
549-554
2010-04-19（万方平台首次上网日期，不代表论文的发表时间）