Process Planning and Electrode Wear Compensation for 3D Micro EDM
作者单位：Department of Mechatronic EngineeringHuafan UniversityNo.1Huafan Rd.Shihtin Hsiang223 Taipei HsienTaiwan
会议名称：《第十六届国际电加工会议》
会议日期：2010年
学科分类：08[工学] 0802[工学-机械工程] 080201[工学-机械制造及其自动化]
基 金：supported by the National Science Council Taiwan under grant No.95 -2218- E- 211- 001
关 键 词：3D Micro-EDM Electrode Wear Compensation Machine Vision Process Planning
摘 要：正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） *** wear and corner wear of tool electrode can be measured and evaluated in a direct manner by the vision system’s image processing software *** 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 *** length of front wear increases linearly as the depth of hole or the depth of groove *** 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 10μm.