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线放电磨削(WEDG)方法巧妙地解决了微细电极的在线制作问题,启动和促进了微细电火花加工技术研究。但对于孔径小于100μm的批量化微细孔加工,WEDG面临微细电极制作及微细孔加工的尺寸一致性问题。该研究在微细电火花加工实验系统改进的基础上,为提高微细电极重复制作精度、进行微细孔的连续加工,提出切向进给的线放电磨削方法,以降低机床定位精度对微细电极制作精度的影响。通过微细电极重复制作和微细孔加工实验,得到微细电极重复制作一致性精度小于2μm,微细孔连续加工直径一致性精度达到±1.1μm。
Wire Discharge Grinding (WEDG) method cleverly solves the problem of on-line production of fine electrodes and initiates and promotes the research of micro-EDM technology. However, for batch micropore processing with a pore size of less than 100 μm, WEDG faces the issue of dimensional consistency in the fabrication of fine electrodes and micropore processing. Based on the improvement of the micro-EDM system, this study proposed a new method of wire discharge grinding with tangential feed to improve the accuracy of the repetitive fabrication of fine electrodes and the continuous processing of micro-holes. The impact of precision. Through the repeated fabrication of fine electrodes and the experiment of micropore processing, the precision of the repeated fabrication of the microporous electrodes is less than 2μm, and the precision of continuous processing of micropores is ± 1.1μm.