Dimensional Accuracy of Micro-Electro Discharge Milling

[摘要] This paper investigates the dimensional accuracy and tool wear rate (TWR) in micro electro discharge (micro-ED) milling of stainless steel (S304) workpiece and tungsten as the tool electrode with control parameter; voltage and feed rate. Dimensional accuracy is represented by the difference of micro-channel width between the two ends of the channel. The TWR and the micro-channel width data are analyzed and empirical model are developed. The optimum values for minimum TWR and minimum micro-channel width are found to be 91 V voltage and 10 μm/s feed rate.

[发布机构] Department of Manufacturing and Materials Engineering, International Islamic University Malaysia, PO Box 10, Kuala Lumpur; 50728, Malaysia^1

[效力级别] 无线电电子学 [学科分类] 航空航天科学

[关键词] Control parameters;Dimensional accuracy;Electrodischarges;Empirical model;Feed-rates;Optimum value;Tool electrode;Tool wear rate